WO2006076095A1 - Location-based broadcast messaging for radioterminal users - Google Patents

Location-based broadcast messaging for radioterminal users Download PDF

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Publication number
WO2006076095A1
WO2006076095A1 PCT/US2005/044216 US2005044216W WO2006076095A1 WO 2006076095 A1 WO2006076095 A1 WO 2006076095A1 US 2005044216 W US2005044216 W US 2005044216W WO 2006076095 A1 WO2006076095 A1 WO 2006076095A1
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WO
WIPO (PCT)
Prior art keywords
radioterminal
region
applicability
broadcast message
response
Prior art date
Application number
PCT/US2005/044216
Other languages
French (fr)
Inventor
Peter D. Karabinis
Original Assignee
Atc Technologies, Llc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Atc Technologies, Llc filed Critical Atc Technologies, Llc
Priority to CA2586024A priority Critical patent/CA2586024C/en
Priority to DE602005009739T priority patent/DE602005009739D1/en
Priority to EP05857051A priority patent/EP1825698B1/en
Publication of WO2006076095A1 publication Critical patent/WO2006076095A1/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/185—Space-based or airborne stations; Stations for satellite systems
    • H04B7/1851—Systems using a satellite or space-based relay
    • H04B7/18513—Transmission in a satellite or space-based system
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/185—Space-based or airborne stations; Stations for satellite systems
    • H04B7/18523—Satellite systems for providing broadcast service to terrestrial stations, i.e. broadcast satellite service
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/185—Space-based or airborne stations; Stations for satellite systems
    • H04B7/1853—Satellite systems for providing telephony service to a mobile station, i.e. mobile satellite service
    • H04B7/18563—Arrangements for interconnecting multiple systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/65—Arrangements characterised by transmission systems for broadcast
    • H04H20/71—Wireless systems
    • H04H20/72—Wireless systems of terrestrial networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H40/00—Arrangements specially adapted for receiving broadcast information
    • H04H40/18—Arrangements characterised by circuits or components specially adapted for receiving
    • H04H40/27—Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups H04H20/53 - H04H20/95
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
    • H04H60/35—Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users
    • H04H60/49—Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users for identifying locations
    • H04H60/51—Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users for identifying locations of receiving stations
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H2201/00—Aspects of broadcast communication
    • H04H2201/70—Aspects of broadcast communication characterised in that receivers can be addressed
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02—Services making use of location information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices

Definitions

  • This invention relates to wireless communications systems and methods, and more particularly to satellite and terrestrial communications systems and methods.
  • Wireless communications systems and methods are widely used to communicate wirelessly with users of radioterminals.
  • wireless communication systems and methods include conventional terrestrial cellular communication systems and methods, satellite communication systems and methods, ancillary terrestrial communication systems and methods that use one or more satellite communication frequencies terrestrially, and combinations of these and/or other systems and methods.
  • GPS Global Positioning System
  • GLONASS Global System for Mobile Communications
  • Cellular communications systems, satellite communications systems, and ancillary terrestrial communications systems may utilize multiple antenna patterns (beams or cells) each of which can serve a substantially distinct geographical area in an overall service region.
  • a centralized database may be used to track the location of radioterminals within the service region.
  • an initial service area of a radioterminal is entered into the database.
  • the database is updated to reflect the radioterminal' s present location. The database can then be queried to determine which cell and associated base station transceiver and/or satellite beam within the communication system needs to be used to contact the radioterminal.
  • radioterminal includes cellular communications radiotelephones, satellite communications radiotelephones, and/or ancillary terrestrial communications radiotelephones with or without a multi-line display; Personal Communications System (PCS) terminals that may combine a radiotelephone with data processing, facsimile and/or data communications capabilities; Personal Digital Assistants (PDA) that can include a radio frequency transceiver and/or a pager, Internet/Intranet access, Web browser, organizer, calendar and/or a Global Positioning System (GPS) receiver; and/or conventional laptop and/or palmtop computers or other devices, which include a radio frequency transceiver.
  • PCS Personal Communications System
  • PDA Personal Digital Assistants
  • GPS Global Positioning System
  • a radioterminal also may be referred to herein as a "radiotelephone", a “wireless terminal” or simply as a “terminal”.
  • the term(s) "radiotelephone”, “radioterminal”, “wireless terminal” and/or “terminal” also include(s) any other radiating user device/equipment/source that can have time-varying geographic coordinates by, for example, being portable, transportable, and/or installed in a vehicle (e.g., aeronautical, maritime, or land-based).
  • Some embodiments of the present invention provide methods of operating a radioterminal.
  • a broadcast message is received at the radioterminal over a wireless air interface.
  • the broadcast message includes region information that defines a geographic region of applicability.
  • a determination is made at the radioterminal as to whether the radioterminal is located in the region of applicability.
  • a functional mode of the radioterminal is activated in response to the radioterminal being in the region of applicability.
  • activation of the functional mode may include activation of a user interface of the radioterminal.
  • first payload information defined by the broadcast message may be displayed on a display device of the radioterminal in response to the radioterminal being in the region of applicability.
  • Second payload information, defined by the broadcast message, which may be different than the first payload information, may be displayed on the display device of the radioterminal in response to the radioterminal being outside the region of applicability.
  • a first audible announcement may be generated by the radioterminal based on the broadcast message and in response to the radioterminal being in the region of applicability, and a second audible announcement, which may be different than the first audible announcement, may be generated by the radioterminal based on the broadcast message and in response to the radioterminal being outside the region of applicability.
  • the geographic location of the radioterminal may be determined based on received global positioning system signals, based on range estimates derived from cellular communication signals received from and/or transmitted to a plurality of cellular base stations having known geographic locations, based on range estimates derived from digital television signals received at the radioterminal from a plurality of digital television base station transceivers having known geographic locations, and/or using other techniques.
  • the received broadcast message may include a group address that defines a group of radioterminals for which the broadcast message is applicable.
  • the radioterminal may determine whether it is a member of the group of radioterminals defined by the group address for which the broadcast message is applicable.
  • the radioterminal may then activate the functional mode in response to the radioterminal being in the region of applicability and being a member of the group of radioterminals for which the broadcast message is applicable.
  • the radioterminal may partially decode the broadcast message to obtain the region of applicability. The radioterminal may then further decode the broadcast message to obtain payload information defined by the broadcast message responsive to the radioterminal being in the region of applicability.
  • At least a portion of the received broadcast message may be selectively stored in a non-volatile memory within the radioterminal responsive to the determination of whether the radioterminal is located within the region of applicability.
  • payload information from the received broadcast message may be displayed on a display device of the radioterminal and/or used to generate an audible announcement in response to the radioterminal being in the region of applicability.
  • the radioterminal when it is outside the region of applicability, it may store at least a portion of the payload information and associated region of applicability in a non-volatile memory within the radioterminal.
  • the stored payload information may be retrieved from the non-volatile memory in response to the radioterminal becoming within the region of applicability and may be displayed on the display device and/or used to generate an audible announcement.
  • a radioterminal includes a user interface, a wireless transceiver, a location determination unit, and a controller.
  • the user interface is configured to communicate information to a user of the radioterminal.
  • the wireless transceiver is configured to receive over a wireless air interface a broadcast message that includes region information that defines a geographic region of applicability.
  • the location determination unit is configured to determine a geographic location of the radioterminal.
  • the controller is configured to determine whether the radioterminal is located in the region of applicability based on the region information from the broadcast message and the determined location of the radioterminal, and to activate a functional mode of the radioterminal in response to being in the region of applicability.
  • a broadcast message generation console includes a communications interface communicatively coupled to a base station radio-transmitter and a controller.
  • the controller is configured to generate a broadcast message that includes payload information and region information that defines a geographic region of applicability for the payload information and to communicate the broadcast message through the communications interface for broadcast by the base station radio-transmitter to a geographic region that includes the geographic region of applicability.
  • Figure 1 is a schematic diagram that illustrates a plurality of radioterminals that can receive a broadcast message that defines a region of applicability according to some embodiments of the present invention, and where some of the illustrated radioterminals are within and some are outside the region of applicability.
  • Figure 2 is a flowchart of operations that can selectively activate a functional mode of a radioterminal when the radioterminal is in the region of applicability according to some embodiments of the present invention.
  • Figure 3 is a block diagram that illustrates a satellite communication system that generates a broadcast message according to some embodiments of the present invention.
  • Figure 4 is a block diagram that illustrates a terrestrial communications system that generates a broadcast message according to some embodiments of the present invention.
  • Figure 5 is a block diagram of a radioterminal that is configured to receive a broadcast message from a satellite communications system and/or a terrestrial communications system according to some embodiments of the present invention.
  • first and second may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another element. Thus, a first radiotelephone below could be termed a second radiotelephone, and similarly, a second radiotelephone may be termed a first radiotelephone without departing from the teachings of the present invention.
  • the term “and/or” includes any and all combinations of one or more of the associated listed items. The symbol “/” is also used as a shorthand notation for "and/or”.
  • Embodiments of the present invention can provide location-based broadcast messaging for radioterminal users.
  • a broadcast message 110 may be broadcast by a satellite, terrestrial cellular, ancillary terrestrial, and/or digital television system over one or more cells, service regions, and/or spot beams thereof.
  • the broadcast message 110 comprises region information that defines a geographic region 120 of applicability for the broadcast message 110.
  • the broadcast message 110 may define the geographic region of applicability by, for example, providing geographic coordinates that indicate a boundary of the region, a center of the region and its radius, and/or based on other techniques that can define a region.
  • first radioterminals 130 also labeled 1-N in Figure 1
  • second radioterminals 140 also labeled N+l - N+M in Figure 1
  • the first and second radioterminals may be substantially identical or different.
  • FIG. 2 is a flowchart of methods and operations that may be performed by radioterminals, such as radioterminals 130 and/or 140 of Figure 1, according to various embodiments of the present invention.
  • the radioterminals 130 and/or 140 receive a broadcast message, such as the broadcast message 1 10 of Figure 1 , which includes region information that defines a geographic region of applicability, such as the region 120 of Figure 1.
  • a broadcast message such as the broadcast message 1 10 of Figure 1
  • region information that defines a geographic region of applicability, such as the region 120 of Figure 1.
  • Each of the radioterminals 130 and/or 140 can determine from its geographic location whether it is located in the region of applicability 120 for the broadcast message.
  • the radioterminals 130 and/or 140 may determine their location based on, for example, processing of GPS signals and/or they may determine their location, or be informed of their location as determined by another device, based on triangulation of cellular, ancillary cellular, and/or digital television communication signals.
  • the radioterminals 130,140 each determine at Block 220 whether they are within or outside of the region of applicability 120.
  • the radioterminals 140 may each remain- in, return-to, or activate a first functional mode of the respective terminals. Thus, for example, the radioterminals 140 may ignore the broadcast message by remaining in or returning to the same function mode as before the broadcast message was received.
  • the radioterminals 130 may each activate a second functional mode of the respective terminals.
  • the second functional mode is associated with a user interface of the radioterminals 130,140. Accordingly, the radioterminals 130 may activate a user interface in response to determining at Block 220 that they are in the region of applicability 120.
  • a broadcast message 110 may be broadcast by a satellite, terrestrial cellular, ancillary terrestrial, and/or digital television system over one or more cells, spot beams, and/or service areas thereof, asking users of radioterminals 130 that are located within the specified region 120 to respond or gather in a particular location.
  • the radioterminals 130 may activate a second functional mode that displays a message on its display device, generates an audible announcement (such as a voice message and/or ring tone), generates a vibration that can be sensed by a user, and/or that generates another alert to inform a user thereof to report to a particular location or to otherwise respond to the event.
  • the radioterminals 140 outside the region 120 may not activate the second functional mode and, thereby, not alert a user thereof to the broadcast message.
  • the first and second functional modes may both be associated with a user interface of the radioterminals 130,140.
  • users of the radioterminals 130 within the region 120 may receive a different alert than users of the radioterminals 140 outside the region 120.
  • the radioterminals 140 may activate a first functional mode at Block 230 to generate a first alert and the radioterminals 130 may activate a different second functional mode at Block 240 to generate a different second alert.
  • the first functional mode carried out at Block 230 may display first payload information defined by the broadcast message on a display device of the radioterminals 140.
  • the second functional mode carried out at Block 240 may display second payload information defined by the broadcast message, which is different than the first payload information, on a display device of the radioterminals 130. Further to the example above, a message may be displayed to users of radioterminals 130 that instructs them to respond or gather in a particular location, while another message may be displayed to users of radioterminals 140 that informs them of the event and instructs them to be prepared to respond if further assistance is needed.
  • the radioterminals 130,140 can generate different audible announcements based on different payload information of the broadcast message and in response to whether they are within or outside of the region of applicability 120. In yet some other embodiments, the radioterminals 130,140 can generate different ring tones and/or vibrations having characteristics that differ in response to whether they are within or outside of the region of applicability 120.
  • a radioterminal may selectively alert a user to a broadcast message based on whether the radioterminal determines to be in the defined region of applicability for the message, or it may selectively generate different alerts responsive to that determination.
  • Figure 3 illustrates a satellite communication system 300 that generates a broadcast message in accordance with some embodiments of the present invention.
  • the system 300 includes a satellite 310 that serves a service region 320, here shown as including a plurality of cells (service link antenna patterns) 322a-c.
  • Two radioterminals 330, 332 are shown in adjacent cells 322a, 322b, respectively.
  • the radioterminals 330, 332 are configured to receive broadcast messages from the satellite 310, and may be further configured to transmit messages thereto.
  • a broadcast message generation console 340 includes a controller 342 that is configured to generate a broadcast message that includes payload information and region information that defines a geographic region of applicability for the payload information.
  • the region information may be encoded within a header portion of the broadcast message.
  • the controller 342 communicates the broadcast message through the communications interface 344 and a network 350 to a satellite base station transceiver 360.
  • the satellite transceiver 360 communicates the broadcast message through a communications link 362 to the satellite 310 where it is broadcast across the service region 320 or across a portion of the service region 320.
  • the region of applicability can be defined to correspond to cell 322a.
  • the radioterminals 330, 332 may each determine a measure of their location based on processing signals from GPS satellites 370 and/or based on other techniques. Radioterminal 330 generates an alert to a user in response to it receiving the broadcast message and determining that it is located in the defined region of applicability 322a. In contrast, radioterminal 332 may receive the broadcast message and may not generate an alert, or may generate a different alert than radioterminal 330 in response to it determining that it is not located in the region 322a.
  • the broadcast message console 340 may generate the broadcast message responsive to an operator in an emergency response center and/or responsive to a message received from another communications device via, for example, a wireline network (e.g., Internet and/or private network) and/or a wireless network (e.g., cellular and/or satellite network).
  • a wireline network e.g., Internet and/or private network
  • a wireless network e.g., cellular and/or satellite network
  • the broadcast message console 340 may further generate in the broadcast message a group address that defines a group of radioterminals for which the broadcast message is applicable.
  • Each of the radioterminals 330, 332 may be configured to determine whether they are members of the group of radioterminals defined by the group address of the broadcast message.
  • Radioterminal 330 can then selectively activate one or more functional modes therein in response to it being in the region of applicability 322a and being a member of the applicable group of radioterminals.
  • the broadcast message may be used to alert selected public officials (e.g., policemen, firemen, public electrical repairmen, or public waterline repairmen) within the region of applicability to respond to an event.
  • FIG. 4 illustrates a terrestrial communications system 400 that generates a broadcast message in accordance with some embodiments of the present invention.
  • the system 400 includes a cellular communications system and a digital television communications system.
  • the cellular communications system includes a plurality of cellular base station transceivers 410, each of which services at least one cell 412, and a mobile switching center (MSC) 420.
  • the base station transceivers 410 may additionally or alternatively form an ancillary terrestrial communications system that uses one or more satellite communications frequencies terrestrially to communicate with radioterminals in the cells 412.
  • the digital television communications system includes a digital television base station transceiver 430, which services a region 432, and a digital television base station controller 434.
  • the cells 322 and 412 and region 432 have been drawn as circles/ovals of uniform size for ease of illustration, it is to be understood that their shape and size will vary based upon, for example, antenna transmission patterns and obstructions (e.g., mountains, valleys, buildings).
  • the digital television base station transceiver 430 generally would be centrally located within the service region 432, but for ease of illustration it has been shown offset therefrom.
  • a broadcast message generation console 440 which may be configured as shown in Figure 3, generates a broadcast message which it may communicate to the digital television base station controller 434 and/or the MSC 420.
  • the broadcast message includes payload information and region information that defines a geographic region of applicability for the payload information.
  • the MSC 420 communicates the broadcast message to at least some of the cellular base station transceivers 410 which broadcast it across their respective cells 412.
  • the digital television base station controller 434 communicates the broadcast message to the digital television base station transceiver 430 which broadcasts it across the region 400.
  • radioterminals 450, 452 are shown in two different cells 412.
  • the radioterminals 450, 452 are configured to receive broadcast messages from the cellular base station transceivers 410 and/or the digital television base station transceiver 430.
  • an exemplary broadcast message generated by the broadcast message generation console 440 defines a region of applicability 460 that encompasses a plurality of the cells 412, including the radioterminal 450.
  • radioterminal 452 is outside the region of applicability 460. Both radioterminals 450, 452 receive the broadcast message via the cellular base station transceivers 410 and/or the digital television base station transceiver 430.
  • the radioterminals 450, 452 may each determine their location based on GPS signal processing and/or range estimates derived from cellular communication signals communicated between the radioterminals 450, 452 and a plurality of the cellular base station transceivers 410. For example, the radioterminals 450, 452 may triangulate their geographic location based on the range estimates and known geographic locations of the ranged cellular base station transceivers 410. A plurality of the cellular base station transceivers 410 may determine the range of the radioterminals 450, 452 therefrom based on time of flight of the radioterminal communications signals, and may determine the geographic location of the radioterminals 450, 452 based thereon.
  • Corresponding ones of the cellular base station transceivers 410 may then communicate to the radioterminals 450, 452 their determined geographic locations.
  • the radioterminals 450, 452 may each determine their location based on range estimates derived from digital television signals received from a plurality of the digital television base station transceivers 430 that have overlapping service regions and have known geographic locations.
  • Radioterminal 450 generates an alert to a user in response to receiving the broadcast message and determining that it is located in the defined region of applicability 460.
  • radioterminal 452 receives the broadcast message and may not generate an alert or may generate a different alert than radioterminal 450 in response to determining that it is not located in the region 460.
  • the radioterminal 450 may continue to monitor its geographic location and may cease generation of the alert (e.g., stop displaying the alert message) and/or change the alert (e.g., display a different alert message) when it determines that it is no longer within the region 460.
  • the radioterminal 452 may continue to monitor its geographic location and may initiate the generation of an alert when it determines that it has become within the region 460.
  • the broadcast message may define more than one region of applicability.
  • the radioterminals 450, 452 can include a plurality of different functional modes, and can selectively activate different ones of the functional modes in response to which, if any, of the regions of applicability it is determined to be within.
  • a television station may want to issue a general weather alert, such as a tornado watch, for region 432 and a more particular alert, such a tornado warning, for region 460.
  • the television station may generate a broadcast message through the console 440 that defines two regions of applicability 432, 460 and includes different voice data and/or textual data associated with the different regions 432, 460 as a payload of the broadcast message.
  • the broadcast message is transmitted through the digital television base station transceiver 430 across service region 432 and/or through at least some of the cellular base station transceivers 410 across the cells 412.
  • Radioterminal 450 generates an audible announcement, displays a message, generates a vibration pattern, and/or a ring tone to notify a user of the weather alert. For example, a user of radioterminal 450 may be warned, through displayed text and/or audible announcement, to seek immediate shelter from a tornado. The broadcast message may also cause the other radioterminal 452 to ignore the message or to generate a different audible announcement, displayed message, vibration pattern, and/or ring tone than that generated by the radioterminal 450. For example, a user of radioterminal 452 may be informed of the tornado region and warned to keep a lookout for further weather alerts until a defined time.
  • subsequent broadcast messages may define differing regions of applicability.
  • the radioterminals 450, 452 may thereby activate/inactivate various functionalities responsive to the time varying regions defined in the messages so as to cease, change, or initiate notification of users.
  • the broadcast messages may include discrete data blocks, the invention is not limited thereto.
  • the broadcast message generation console 440 may be configured to generate a continuous message data stream that includes broadcast messages therein.
  • the region information that defines the region of applicability may be encoded within multiple locations (e.g., repetitively occurring locations) in the broadcast message data stream and payload information may be encoded therebetween.
  • FIG. 5 further illustrates a radioterminal 500 that may be used as one or more of the radioterminals 130, 140, 330, 332, 450, 452 ( Figures 1, 3, 4) within a satellite and/or terrestrial communication system in accordance with some embodiments of the present invention.
  • the radioterminal 500 may include a wireless transceiver 510, an output interface 520, a user input interface 530, a non-volatile memory 540, and a GPS receiver 560 that are communicatively connected to a controller 550.
  • the user input interface 530 may include a keypad 534 and/or a microphone 532.
  • controller 550 has been illustrated as a single functional block to simplify the drawing, it is to be understood the function and operations described herein for the controller 550 may be distributed among a plurality a devices (e.g., a digital signal processor, general purpose processor, gate array, etc.).
  • a device e.g., a digital signal processor, general purpose processor, gate array, etc.
  • the wireless transceiver 510 can include a satellite transceiver 512, a cellular transceiver 514, and/or a digital television transceiver 516 that are configured to receive a broadcast message, which defines a region of applicability, from the satellite 310, the cellular base station transceivers 410a-c, and the digital television base station transceivers 430a-c, respectively.
  • the satellite, cellular, and/or digital television transceivers 512, 514, 516 may be further configured to respond back by transmitting data to provide bi-directional communications, but the present invention is not limited to such bi-directional communication transceivers. Accordingly, as used herein, a radioterminal "transceiver" may, or may not, be configured to only receive broadcast messages.
  • the cellular transceiver 514 may be configured to communicate with the cellular base station transceivers 410a-c using one or more cellular communications protocols including, but not limited to, Advanced Mobile Phone Service (AMPS), ANSI-136, Global Standard for Mobile (GSM) communications, General Packet Radio Service (GPRS), enhanced data rates for GSM evolution (EDGE), code division multiple access (CDMA), wideband-CDMA, cdma2000, and/or Universal Mobile Telecommunications System (UMTS).
  • AMPS Advanced Mobile Phone Service
  • GSM Global Standard for Mobile
  • GPRS General Packet Radio Service
  • EDGE enhanced data rates for GSM evolution
  • CDMA code division multiple access
  • cdma2000 wideband-CDMA
  • UMTS Universal Mobile Telecommunications System
  • the controller 550 may alternatively or additionally be configured to determine the radioterminal location based on range estimates derived from cellular communications signals received from the cellular base station transceivers 410a-c and/or based on digital television signals received from the digital television base station transceivers 430a-c and based on the known geographic locations of the respective transceivers 410a-c, 430a-c.
  • the MSC 420 may determine the location of the radioterminal 500 based on triangulation of signals transmitted by the radioterminal 500 to the cellular base station transceivers 410a-c, and it may then communicate the determined location to the radioterminal 500 where it is used by the controller 550.
  • the controller 550 in combination with one or more of the transceivers 512, 514, 516 and/or the GPS receiver 560 are collectively referred to herein as a location determination unit 570.
  • the controller 550 may, for example, display first payload information defined by the broadcast message on the display device 522 in response to the radioterminal 500 being in the region of applicability, and can display different second payload information defined by the broadcast message in response to the radioterminal 500 not being in the region of applicability.
  • the controller 550 may alternatively or additionally generate a first audible announcement through the speaker 524 and/or vibration having first characteristics through the vibration device 526 based on the first payload information and in response to the radioterminal 500 being in the region of applicability, and can generate a different second audible announcement and/or different second vibration characteristic based on the second payload information and in response to the radioterminal 500 not being in the region of applicability.
  • One or more of the satellite transceiver 512, the cellular transceiver 514, and/or the digital television transceiver 516 may be configured to at least partially decode the broadcast message to obtain the region of applicability, and to further decode the broadcast message to obtain the payload information responsive to the radioterminal 500 being determined to be in the region of applicability.
  • the region of applicability can be encoded in a header portion of the broadcast message.
  • the transceivers 512-516 may decode the header portion of the broadcast message to obtain the region of applicability and, when the radioterminal is determined to be in the region, it may further decode payload portion of the broadcast message.
  • the transceivers 512-516 may decode portions of the data stream to obtain the defined region and, responsive to the radioterminal 500 being in the defined region, they may decode other portions of the data stream to obtain the payload information. Decoding of the data stream can cease when the radioterminal 500 is outside a last obtained region of applicability.
  • the controller 550 can store at least a portion of a received broadcast message in the non- volatile memory 540 responsive to the determination of whether the radioterminal 500 is in the region of applicability. For example, the controller 550 may display the payload information on the display device 522 and/or generate an audible announcement through the speaker 524 in response to the radioterminal 500 being in the region of applicability, and may store at least a portion of the payload information and the associated region of applicability in the non-volatile memory 540 when it is outside the region of applicability.
  • the controller 500 can retrieve the stored payload information from the non-volatile memory 540 and display it on the display device 522 and/or use it to generate an audible announcement through the speaker 524.
  • the non-volatile memory 540 may include, but is not limited to, a magnetic disk-based storage device, a read-write optical disk-based storage device, a Electrically Eraseable Programmable Read-Only Memory (EEPROM) device, a Flash EPROM device, a battery backed Random Access Memory (RAM) device, and/or a hierarchy of two or more of these devices.
  • EEPROM Electrically Eraseable Programmable Read-Only Memory
  • RAM Battery backed Random Access Memory
  • a decision by the controller 550 of the radioterminal 500 of Figure 5 may not be based on a determined position of the radioterminal. Instead, the decision may be based on a user input and/or a system input to the radioterminal.
  • the user and/or system input to the radioterminal may be data associated with a user of the radioterminal.
  • the data associated with the user of the radioterminal may be associated with one or more preferences of the user of the radioterminal.
  • the input to the radioterminal may be used by the controller 550 of the radioterminal as a "filter" to exclude first information that is received at the radioterminal by a broadcast message from being presented to the user of the radioterminal, while including second information that is received at the radioterminal by the broadcast message, that passes through the filter, to be presented to the user of the radioterminal.
  • the decision may be based on both the determined position of the radioterminal and the input to the radioterminal.
  • content of a broadcast message that may be of interest to a user of a radioterminal may be displayed to the user of the radioterminal, while other content of the broadcast message that may not be of interest to the user of the radioterminal may not be displayed to the user of the radioterminal.

Abstract

Methods, radioterminals, and broadcast message generation consoles provide location-based broadcast messaging for users. A method of operating a radioterminal can include receiving at the radioterminal over a wireless air interface a broadcast message that includes region information that defines a geographic region of applicability. A determination is made at the radioterminal whether the radioterminal is located in the region of applicability. A functional mode of the radioterminal is activated in response to the radioterminal being in the region of applicability. The functional mode may include activating a user interface of the radioterminal.

Description

LOCATION-BASED BROADCAST MESSAGING FOR RADIOTERMINAL USERS
RELATED APPLICATION
[0001] The present application claims the benefit of United States Provisional Application Serial No. 60/636,594, filed December 16, 2004 and hereby incorporated by reference herein in its entirety.
FIELD OF THE INVENTION
[0002] This invention relates to wireless communications systems and methods, and more particularly to satellite and terrestrial communications systems and methods.
BACKGROUND OF THE INVENTION
[0003] Wireless communications systems and methods are widely used to communicate wirelessly with users of radioterminals. As is well known to those having skill in the art, wireless communication systems and methods include conventional terrestrial cellular communication systems and methods, satellite communication systems and methods, ancillary terrestrial communication systems and methods that use one or more satellite communication frequencies terrestrially, and combinations of these and/or other systems and methods.
[0004] It is becoming increasingly common for radioterminals to be configured to determine their geographic location. One widely used location determination system and method is the Global Positioning System (GPS). As is well known to those having skill in the art, GPS is a satellite navigation system that is funded and controlled by the U.S. Department of Defense, that provides specially coded satellite signals that can be processed in a GPS receiver, enabling the receiver to compute position, velocity and/or time. As used herein, the term "GPS" also includes other systems that can be used to measure locations on the earth, such as GLONASS. Some cellular communication systems are also configured to assist a radioterminal in determining its geographic location. [0005] Cellular communications systems, satellite communications systems, and ancillary terrestrial communications systems may utilize multiple antenna patterns (beams or cells) each of which can serve a substantially distinct geographical area in an overall service region. Because radioterminals typically are mobile and move through many different service areas of a communication system, a centralized database may be used to track the location of radioterminals within the service region. Upon registering with a system, an initial service area of a radioterminal is entered into the database. As the radioterminal moves from area to area, the database is updated to reflect the radioterminal' s present location. The database can then be queried to determine which cell and associated base station transceiver and/or satellite beam within the communication system needs to be used to contact the radioterminal.
[0006] As used herein, the term "radioterminal" includes cellular communications radiotelephones, satellite communications radiotelephones, and/or ancillary terrestrial communications radiotelephones with or without a multi-line display; Personal Communications System (PCS) terminals that may combine a radiotelephone with data processing, facsimile and/or data communications capabilities; Personal Digital Assistants (PDA) that can include a radio frequency transceiver and/or a pager, Internet/Intranet access, Web browser, organizer, calendar and/or a Global Positioning System (GPS) receiver; and/or conventional laptop and/or palmtop computers or other devices, which include a radio frequency transceiver. A radioterminal also may be referred to herein as a "radiotelephone", a "wireless terminal" or simply as a "terminal". As used herein, the term(s) "radiotelephone", "radioterminal", "wireless terminal" and/or "terminal" also include(s) any other radiating user device/equipment/source that can have time-varying geographic coordinates by, for example, being portable, transportable, and/or installed in a vehicle (e.g., aeronautical, maritime, or land-based).
SUMMARY OF THE INVENTION
[0007] Some embodiments of the present invention provide methods of operating a radioterminal. A broadcast message is received at the radioterminal over a wireless air interface. The broadcast message includes region information that defines a geographic region of applicability. A determination is made at the radioterminal as to whether the radioterminal is located in the region of applicability. A functional mode of the radioterminal is activated in response to the radioterminal being in the region of applicability.
[0008] In some further embodiments of the present invention, activation of the functional mode may include activation of a user interface of the radioterminal. For example, first payload information defined by the broadcast message may be displayed on a display device of the radioterminal in response to the radioterminal being in the region of applicability. Second payload information, defined by the broadcast message, which may be different than the first payload information, may be displayed on the display device of the radioterminal in response to the radioterminal being outside the region of applicability. A first audible announcement may be generated by the radioterminal based on the broadcast message and in response to the radioterminal being in the region of applicability, and a second audible announcement, which may be different than the first audible announcement, may be generated by the radioterminal based on the broadcast message and in response to the radioterminal being outside the region of applicability.
[0009] In some further embodiments of the present invention, the geographic location of the radioterminal may be determined based on received global positioning system signals, based on range estimates derived from cellular communication signals received from and/or transmitted to a plurality of cellular base stations having known geographic locations, based on range estimates derived from digital television signals received at the radioterminal from a plurality of digital television base station transceivers having known geographic locations, and/or using other techniques.
[0010] In some further embodiments of the present invention, the received broadcast message may include a group address that defines a group of radioterminals for which the broadcast message is applicable. The radioterminal may determine whether it is a member of the group of radioterminals defined by the group address for which the broadcast message is applicable. The radioterminal may then activate the functional mode in response to the radioterminal being in the region of applicability and being a member of the group of radioterminals for which the broadcast message is applicable.
[0011] In some further embodiments of the present invention, the radioterminal may partially decode the broadcast message to obtain the region of applicability. The radioterminal may then further decode the broadcast message to obtain payload information defined by the broadcast message responsive to the radioterminal being in the region of applicability.
[0012] In some further embodiments of the present invention, at least a portion of the received broadcast message may be selectively stored in a non-volatile memory within the radioterminal responsive to the determination of whether the radioterminal is located within the region of applicability. For example, payload information from the received broadcast message may be displayed on a display device of the radioterminal and/or used to generate an audible announcement in response to the radioterminal being in the region of applicability. However, when the radioterminal is outside the region of applicability, it may store at least a portion of the payload information and associated region of applicability in a non-volatile memory within the radioterminal. The stored payload information may be retrieved from the non-volatile memory in response to the radioterminal becoming within the region of applicability and may be displayed on the display device and/or used to generate an audible announcement.
[0013] In some other embodiments of the present invention, a radioterminal includes a user interface, a wireless transceiver, a location determination unit, and a controller. The user interface is configured to communicate information to a user of the radioterminal. The wireless transceiver is configured to receive over a wireless air interface a broadcast message that includes region information that defines a geographic region of applicability. The location determination unit is configured to determine a geographic location of the radioterminal. The controller is configured to determine whether the radioterminal is located in the region of applicability based on the region information from the broadcast message and the determined location of the radioterminal, and to activate a functional mode of the radioterminal in response to being in the region of applicability.
[0014] In some other embodiments of the present invention, a broadcast message generation console includes a communications interface communicatively coupled to a base station radio-transmitter and a controller. The controller is configured to generate a broadcast message that includes payload information and region information that defines a geographic region of applicability for the payload information and to communicate the broadcast message through the communications interface for broadcast by the base station radio-transmitter to a geographic region that includes the geographic region of applicability. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 is a schematic diagram that illustrates a plurality of radioterminals that can receive a broadcast message that defines a region of applicability according to some embodiments of the present invention, and where some of the illustrated radioterminals are within and some are outside the region of applicability.
[0016] Figure 2 is a flowchart of operations that can selectively activate a functional mode of a radioterminal when the radioterminal is in the region of applicability according to some embodiments of the present invention.
[0017] Figure 3 is a block diagram that illustrates a satellite communication system that generates a broadcast message according to some embodiments of the present invention.
[0018] Figure 4 is a block diagram that illustrates a terrestrial communications system that generates a broadcast message according to some embodiments of the present invention.
[0019] Figure 5 is a block diagram of a radioterminal that is configured to receive a broadcast message from a satellite communications system and/or a terrestrial communications system according to some embodiments of the present invention.
DETAILED DESCRIPTION
[0020] The present invention now will be described more fully hereinafter with reference to the accompanying drawings, in which embodiments of the invention are shown. However, this invention should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. Like numbers refer to like elements throughout.
[0021] It will be understood that when an element is referred to as being "connected", "coupled" or "responsive" to another element, it can be directly connected, coupled or responsive to the other element or intervening elements may be present. Furthermore, "connected", "coupled" or "responsive" as used herein may include wirelessly connected, coupled or responsive.
[0022] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless expressly stated otherwise. It will be further understood that the terms "includes," "comprises," "including" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and the present disclosure, and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
[0023] It will be understood that although the terms first and second may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another element. Thus, a first radiotelephone below could be termed a second radiotelephone, and similarly, a second radiotelephone may be termed a first radiotelephone without departing from the teachings of the present invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items. The symbol "/" is also used as a shorthand notation for "and/or".
[0024] Embodiments of the present invention can provide location-based broadcast messaging for radioterminal users. In particular, as shown in Figure 1, a broadcast message 110 may be broadcast by a satellite, terrestrial cellular, ancillary terrestrial, and/or digital television system over one or more cells, service regions, and/or spot beams thereof. The broadcast message 110 comprises region information that defines a geographic region 120 of applicability for the broadcast message 110. The broadcast message 110 may define the geographic region of applicability by, for example, providing geographic coordinates that indicate a boundary of the region, a center of the region and its radius, and/or based on other techniques that can define a region.
[0025] One or more first radioterminals 130, also labeled 1-N in Figure 1, are located within the region 120. One or more second radioterminals 140, also labeled N+l - N+M in Figure 1, are located outside the region 120. The first and second radioterminals may be substantially identical or different.
[0026] Figure 2 is a flowchart of methods and operations that may be performed by radioterminals, such as radioterminals 130 and/or 140 of Figure 1, according to various embodiments of the present invention. As shown in Figure 2, at Block 210, the radioterminals 130 and/or 140 receive a broadcast message, such as the broadcast message 1 10 of Figure 1 , which includes region information that defines a geographic region of applicability, such as the region 120 of Figure 1. Each of the radioterminals 130 and/or 140 can determine from its geographic location whether it is located in the region of applicability 120 for the broadcast message. As will be described below, the radioterminals 130 and/or 140 may determine their location based on, for example, processing of GPS signals and/or they may determine their location, or be informed of their location as determined by another device, based on triangulation of cellular, ancillary cellular, and/or digital television communication signals. The radioterminals 130,140 each determine at Block 220 whether they are within or outside of the region of applicability 120.
[0027] In response to the radioterminals 140 determining at Block 220 that they are outside the region of applicability 120, they may each remain- in, return-to, or activate a first functional mode of the respective terminals. Thus, for example, the radioterminals 140 may ignore the broadcast message by remaining in or returning to the same function mode as before the broadcast message was received.
[0028] In contrast, in response to the radioterminals 130 determining at Block 220 that they are in the region of applicability 120, they may each activate a second functional mode of the respective terminals. In some embodiments, the second functional mode is associated with a user interface of the radioterminals 130,140. Accordingly, the radioterminals 130 may activate a user interface in response to determining at Block 220 that they are in the region of applicability 120.
[0029] For example, referring again to Figure 1 , upon occurrence of an event, it may be desirable to summon first responders to a particular location. A broadcast message 110 may be broadcast by a satellite, terrestrial cellular, ancillary terrestrial, and/or digital television system over one or more cells, spot beams, and/or service areas thereof, asking users of radioterminals 130 that are located within the specified region 120 to respond or gather in a particular location. [0030] In response to the determination by one of the radioterminals 130 that it is within the region 120, it may activate a second functional mode that displays a message on its display device, generates an audible announcement (such as a voice message and/or ring tone), generates a vibration that can be sensed by a user, and/or that generates another alert to inform a user thereof to report to a particular location or to otherwise respond to the event. The radioterminals 140 outside the region 120 may not activate the second functional mode and, thereby, not alert a user thereof to the broadcast message.
[0031] In some other embodiments, the first and second functional modes may both be associated with a user interface of the radioterminals 130,140. For example, users of the radioterminals 130 within the region 120 may receive a different alert than users of the radioterminals 140 outside the region 120. The radioterminals 140 may activate a first functional mode at Block 230 to generate a first alert and the radioterminals 130 may activate a different second functional mode at Block 240 to generate a different second alert. Thus, referring back to Figure 2, the first functional mode carried out at Block 230 may display first payload information defined by the broadcast message on a display device of the radioterminals 140. The second functional mode carried out at Block 240 may display second payload information defined by the broadcast message, which is different than the first payload information, on a display device of the radioterminals 130. Further to the example above, a message may be displayed to users of radioterminals 130 that instructs them to respond or gather in a particular location, while another message may be displayed to users of radioterminals 140 that informs them of the event and instructs them to be prepared to respond if further assistance is needed.
[0032] In some other embodiments, the radioterminals 130,140 can generate different audible announcements based on different payload information of the broadcast message and in response to whether they are within or outside of the region of applicability 120. In yet some other embodiments, the radioterminals 130,140 can generate different ring tones and/or vibrations having characteristics that differ in response to whether they are within or outside of the region of applicability 120.
[0033] Accordingly, a radioterminal may selectively alert a user to a broadcast message based on whether the radioterminal determines to be in the defined region of applicability for the message, or it may selectively generate different alerts responsive to that determination. [0034] Figure 3 illustrates a satellite communication system 300 that generates a broadcast message in accordance with some embodiments of the present invention. The system 300 includes a satellite 310 that serves a service region 320, here shown as including a plurality of cells (service link antenna patterns) 322a-c. Two radioterminals 330, 332 are shown in adjacent cells 322a, 322b, respectively. The radioterminals 330, 332 are configured to receive broadcast messages from the satellite 310, and may be further configured to transmit messages thereto.
[0035] A broadcast message generation console 340 includes a controller 342 that is configured to generate a broadcast message that includes payload information and region information that defines a geographic region of applicability for the payload information. In some embodiments, the region information may be encoded within a header portion of the broadcast message. The controller 342 communicates the broadcast message through the communications interface 344 and a network 350 to a satellite base station transceiver 360. The satellite transceiver 360 communicates the broadcast message through a communications link 362 to the satellite 310 where it is broadcast across the service region 320 or across a portion of the service region 320. By way of example, the region of applicability can be defined to correspond to cell 322a. The radioterminals 330, 332 may each determine a measure of their location based on processing signals from GPS satellites 370 and/or based on other techniques. Radioterminal 330 generates an alert to a user in response to it receiving the broadcast message and determining that it is located in the defined region of applicability 322a. In contrast, radioterminal 332 may receive the broadcast message and may not generate an alert, or may generate a different alert than radioterminal 330 in response to it determining that it is not located in the region 322a.
[0036] In some embodiments, the broadcast message console 340 may generate the broadcast message responsive to an operator in an emergency response center and/or responsive to a message received from another communications device via, for example, a wireline network (e.g., Internet and/or private network) and/or a wireless network (e.g., cellular and/or satellite network). As will be appreciated, because the radioterminals 330, 332 vary their functional response to a broadcast message based upon their own determination of whether they are within the region of applicability, it may obviate a need to perform centralized tracking of radioterminal locations and generating messages based on such centralized tracking. [0037] The broadcast message console 340 may further generate in the broadcast message a group address that defines a group of radioterminals for which the broadcast message is applicable. Each of the radioterminals 330, 332 may be configured to determine whether they are members of the group of radioterminals defined by the group address of the broadcast message. Radioterminal 330 can then selectively activate one or more functional modes therein in response to it being in the region of applicability 322a and being a member of the applicable group of radioterminals. Thus, for example, the broadcast message may be used to alert selected public officials (e.g., policemen, firemen, public electrical repairmen, or public waterline repairmen) within the region of applicability to respond to an event.
[0038] Figure 4 illustrates a terrestrial communications system 400 that generates a broadcast message in accordance with some embodiments of the present invention. The system 400 includes a cellular communications system and a digital television communications system. The cellular communications system includes a plurality of cellular base station transceivers 410, each of which services at least one cell 412, and a mobile switching center (MSC) 420. The base station transceivers 410 may additionally or alternatively form an ancillary terrestrial communications system that uses one or more satellite communications frequencies terrestrially to communicate with radioterminals in the cells 412. The digital television communications system includes a digital television base station transceiver 430, which services a region 432, and a digital television base station controller 434.
[0039] Although the cells 322 and 412 and region 432 have been drawn as circles/ovals of uniform size for ease of illustration, it is to be understood that their shape and size will vary based upon, for example, antenna transmission patterns and obstructions (e.g., mountains, valleys, buildings). The digital television base station transceiver 430 generally would be centrally located within the service region 432, but for ease of illustration it has been shown offset therefrom.
[0040] A broadcast message generation console 440,. which may be configured as shown in Figure 3, generates a broadcast message which it may communicate to the digital television base station controller 434 and/or the MSC 420. The broadcast message includes payload information and region information that defines a geographic region of applicability for the payload information. The MSC 420 communicates the broadcast message to at least some of the cellular base station transceivers 410 which broadcast it across their respective cells 412. The digital television base station controller 434 communicates the broadcast message to the digital television base station transceiver 430 which broadcasts it across the region 400.
[0041] Two radioterminals 450, 452 are shown in two different cells 412. The radioterminals 450, 452 are configured to receive broadcast messages from the cellular base station transceivers 410 and/or the digital television base station transceiver 430. For purposes of discussion, an exemplary broadcast message generated by the broadcast message generation console 440 defines a region of applicability 460 that encompasses a plurality of the cells 412, including the radioterminal 450. As shown, radioterminal 452 is outside the region of applicability 460. Both radioterminals 450, 452 receive the broadcast message via the cellular base station transceivers 410 and/or the digital television base station transceiver 430.
[0042] The radioterminals 450, 452 may each determine their location based on GPS signal processing and/or range estimates derived from cellular communication signals communicated between the radioterminals 450, 452 and a plurality of the cellular base station transceivers 410. For example, the radioterminals 450, 452 may triangulate their geographic location based on the range estimates and known geographic locations of the ranged cellular base station transceivers 410. A plurality of the cellular base station transceivers 410 may determine the range of the radioterminals 450, 452 therefrom based on time of flight of the radioterminal communications signals, and may determine the geographic location of the radioterminals 450, 452 based thereon. Corresponding ones of the cellular base station transceivers 410 may then communicate to the radioterminals 450, 452 their determined geographic locations. Alternatively or additionally, the radioterminals 450, 452 may each determine their location based on range estimates derived from digital television signals received from a plurality of the digital television base station transceivers 430 that have overlapping service regions and have known geographic locations.
[0043] Radioterminal 450 generates an alert to a user in response to receiving the broadcast message and determining that it is located in the defined region of applicability 460. In contrast, radioterminal 452 receives the broadcast message and may not generate an alert or may generate a different alert than radioterminal 450 in response to determining that it is not located in the region 460. The radioterminal 450 may continue to monitor its geographic location and may cease generation of the alert (e.g., stop displaying the alert message) and/or change the alert (e.g., display a different alert message) when it determines that it is no longer within the region 460. Similarly, the radioterminal 452 may continue to monitor its geographic location and may initiate the generation of an alert when it determines that it has become within the region 460.
[0044] The broadcast message may define more than one region of applicability. The radioterminals 450, 452 can include a plurality of different functional modes, and can selectively activate different ones of the functional modes in response to which, if any, of the regions of applicability it is determined to be within.
[0045] By way of example, a television station may want to issue a general weather alert, such as a tornado watch, for region 432 and a more particular alert, such a tornado warning, for region 460. The television station may generate a broadcast message through the console 440 that defines two regions of applicability 432, 460 and includes different voice data and/or textual data associated with the different regions 432, 460 as a payload of the broadcast message. The broadcast message is transmitted through the digital television base station transceiver 430 across service region 432 and/or through at least some of the cellular base station transceivers 410 across the cells 412. Radioterminal 450 generates an audible announcement, displays a message, generates a vibration pattern, and/or a ring tone to notify a user of the weather alert. For example, a user of radioterminal 450 may be warned, through displayed text and/or audible announcement, to seek immediate shelter from a tornado. The broadcast message may also cause the other radioterminal 452 to ignore the message or to generate a different audible announcement, displayed message, vibration pattern, and/or ring tone than that generated by the radioterminal 450. For example, a user of radioterminal 452 may be informed of the tornado region and warned to keep a lookout for further weather alerts until a defined time.
[0046] When the region of applicability changes over time, such as due to movement of a weather pattern, subsequent broadcast messages may define differing regions of applicability. The radioterminals 450, 452 may thereby activate/inactivate various functionalities responsive to the time varying regions defined in the messages so as to cease, change, or initiate notification of users.
[0047] Although the broadcast messages may include discrete data blocks, the invention is not limited thereto. For example, the broadcast message generation console 440 may be configured to generate a continuous message data stream that includes broadcast messages therein. The region information that defines the region of applicability may be encoded within multiple locations (e.g., repetitively occurring locations) in the broadcast message data stream and payload information may be encoded therebetween.
[0048] Figure 5 further illustrates a radioterminal 500 that may be used as one or more of the radioterminals 130, 140, 330, 332, 450, 452 (Figures 1, 3, 4) within a satellite and/or terrestrial communication system in accordance with some embodiments of the present invention. The radioterminal 500 may include a wireless transceiver 510, an output interface 520, a user input interface 530, a non-volatile memory 540, and a GPS receiver 560 that are communicatively connected to a controller 550. The user input interface 530 may include a keypad 534 and/or a microphone 532. Although the controller 550 has been illustrated as a single functional block to simplify the drawing, it is to be understood the function and operations described herein for the controller 550 may be distributed among a plurality a devices (e.g., a digital signal processor, general purpose processor, gate array, etc.).
[0049] The wireless transceiver 510 can include a satellite transceiver 512, a cellular transceiver 514, and/or a digital television transceiver 516 that are configured to receive a broadcast message, which defines a region of applicability, from the satellite 310, the cellular base station transceivers 410a-c, and the digital television base station transceivers 430a-c, respectively. The satellite, cellular, and/or digital television transceivers 512, 514, 516 may be further configured to respond back by transmitting data to provide bi-directional communications, but the present invention is not limited to such bi-directional communication transceivers. Accordingly, as used herein, a radioterminal "transceiver" may, or may not, be configured to only receive broadcast messages.
[0050] The cellular transceiver 514 may be configured to communicate with the cellular base station transceivers 410a-c using one or more cellular communications protocols including, but not limited to, Advanced Mobile Phone Service (AMPS), ANSI-136, Global Standard for Mobile (GSM) communications, General Packet Radio Service (GPRS), enhanced data rates for GSM evolution (EDGE), code division multiple access (CDMA), wideband-CDMA, cdma2000, and/or Universal Mobile Telecommunications System (UMTS). [0051] The GPS receiver 560 is configured to determine a geographic location of the radioterminal 500 responsive to signals received from the GPS satellites 370, and to communicate the determined location to the controller 550. The controller 550 may alternatively or additionally be configured to determine the radioterminal location based on range estimates derived from cellular communications signals received from the cellular base station transceivers 410a-c and/or based on digital television signals received from the digital television base station transceivers 430a-c and based on the known geographic locations of the respective transceivers 410a-c, 430a-c. The MSC 420 may determine the location of the radioterminal 500 based on triangulation of signals transmitted by the radioterminal 500 to the cellular base station transceivers 410a-c, and it may then communicate the determined location to the radioterminal 500 where it is used by the controller 550. Accordingly, the controller 550 in combination with one or more of the transceivers 512, 514, 516 and/or the GPS receiver 560 are collectively referred to herein as a location determination unit 570.
[0052] The controller 550 is further configured to determine whether the radioterminal 500 is located in a region of applicability defined by region information in a received broadcast message, and configured to activate a functional mode of the radioterminal 500 in response to being in the region of applicability. The output interface 520 may include a display device 522, a speaker 524, and/or a vibration device 526 which are controlled by the controller 550 in response to the broadcast message and the determination of whether the radioterminal 500 is in the region of applicability.
[0053] The controller 550 may, for example, display first payload information defined by the broadcast message on the display device 522 in response to the radioterminal 500 being in the region of applicability, and can display different second payload information defined by the broadcast message in response to the radioterminal 500 not being in the region of applicability. The controller 550 may alternatively or additionally generate a first audible announcement through the speaker 524 and/or vibration having first characteristics through the vibration device 526 based on the first payload information and in response to the radioterminal 500 being in the region of applicability, and can generate a different second audible announcement and/or different second vibration characteristic based on the second payload information and in response to the radioterminal 500 not being in the region of applicability.
[0054] One or more of the satellite transceiver 512, the cellular transceiver 514, and/or the digital television transceiver 516 may be configured to at least partially decode the broadcast message to obtain the region of applicability, and to further decode the broadcast message to obtain the payload information responsive to the radioterminal 500 being determined to be in the region of applicability. For example, the region of applicability can be encoded in a header portion of the broadcast message. The transceivers 512-516 may decode the header portion of the broadcast message to obtain the region of applicability and, when the radioterminal is determined to be in the region, it may further decode payload portion of the broadcast message. When the broadcast message is received within a continuous broadcast message data stream, the transceivers 512-516 may decode portions of the data stream to obtain the defined region and, responsive to the radioterminal 500 being in the defined region, they may decode other portions of the data stream to obtain the payload information. Decoding of the data stream can cease when the radioterminal 500 is outside a last obtained region of applicability.
[0055] The controller 550 can store at least a portion of a received broadcast message in the non- volatile memory 540 responsive to the determination of whether the radioterminal 500 is in the region of applicability. For example, the controller 550 may display the payload information on the display device 522 and/or generate an audible announcement through the speaker 524 in response to the radioterminal 500 being in the region of applicability, and may store at least a portion of the payload information and the associated region of applicability in the non-volatile memory 540 when it is outside the region of applicability. When the radioterminal 500 is subsequently determined to have entered the region of applicability, the controller 500 can retrieve the stored payload information from the non-volatile memory 540 and display it on the display device 522 and/or use it to generate an audible announcement through the speaker 524.
[0056] The non-volatile memory 540 may include, but is not limited to, a magnetic disk-based storage device, a read-write optical disk-based storage device, a Electrically Eraseable Programmable Read-Only Memory (EEPROM) device, a Flash EPROM device, a battery backed Random Access Memory (RAM) device, and/or a hierarchy of two or more of these devices. [0057] In some embodiments of the invention, a decision by the controller 550 of the radioterminal 500 of Figure 5, may not be based on a determined position of the radioterminal. Instead, the decision may be based on a user input and/or a system input to the radioterminal. In some embodiments, the user and/or system input to the radioterminal may be data associated with a user of the radioterminal. The data associated with the user of the radioterminal may be associated with one or more preferences of the user of the radioterminal. Accordingly, the input to the radioterminal may be used by the controller 550 of the radioterminal as a "filter" to exclude first information that is received at the radioterminal by a broadcast message from being presented to the user of the radioterminal, while including second information that is received at the radioterminal by the broadcast message, that passes through the filter, to be presented to the user of the radioterminal. In some embodiments, the decision may be based on both the determined position of the radioterminal and the input to the radioterminal. Accordingly, content of a broadcast message that may be of interest to a user of a radioterminal may be displayed to the user of the radioterminal, while other content of the broadcast message that may not be of interest to the user of the radioterminal may not be displayed to the user of the radioterminal.
[0058] In the drawings and specification, there have been disclosed embodiments of the invention and, although specific terms are employed, they are used in a generic and descriptive sense only and not for purposes of limitation, the scope of the invention being set forth in the following claims.

Claims

WHAT IS CLAIMED IS:
1. A method of operating a radioterminal, the method comprising: receiving at the radioterminal over a wireless air interface a broadcast message that comprises region information that defines a geographic region of applicability; determining at the radioterminal whether the radioterminal is located in the region of applicability; and activating a functional mode of the radioterminal in response to the radioterminal being in the region of applicability.
2. The method of Claim 1, wherein activating a functional mode of the radioterminal in response to the radioterminal being in the region of applicability comprises activating a user interface of the radioterminal.
3. The method of Claim 2, wherein activating a user interface of the radioterminal comprises displaying first payload information defined by the broadcast message on a display device of the radioterminal in response to the radioterminal being in the region of applicability.
4. The method of Claim 3, further comprising displaying second payload information defined by the broadcast message, which is different than the first payload information, on the display device of the radioterminal in response to the radioterminal being outside the region of applicability.
5. The method of Claim 2, wherein activating a user interface of the radioterminal comprises generating a first audible announcement by the radioterminal based on the broadcast message and in response to the radioterminal being in the region of applicability.
6. The method of Claim 5, further comprising generating a second audible announcement, which is different than the first audible announcement, by the radioterminal based on the broadcast message and in response to the radioterminal being outside the region of applicability.
7. The method of Claim 2, wherein activating a user interface of the radioterminal comprises generating a first ring tone from the radioterminal and/or generating a vibration having first characteristics to alert a user of the radioterminal.
8. The method of Claim 7, further comprising generating a second ring tone, which is different than the first ring tone, from the radioterminal and/or generating a vibration having second characteristics, which are different from the first characteristics, in response to the radioterminal being outside the region of applicability.
9. The method of Claim 1, further comprising deactivating the functional mode of the radioterminal in response to the radioterminal being determined to be outside the region of applicability.
10. The method of Claim 1 , wherein: receiving at the radioterminal over a wireless air interface a broadcast message comprises obtaining region information from the broadcast message that defines a plurality of different geographic regions of applicability; determining at the radioterminal whether the radioterminal is located within the region of applicability comprises determining whether the radioterminal is within one of the plurality of different geographic regions of applicability; and activating a functional mode of the radioterminal comprises activating different ones of a plurality of functional modes of the radioterminal in response to the radioterminal being in different ones of the plurality of different geographic regions of applicability.
11. The method of Claim 10, wherein activating different ones of a plurality of functional modes of the radioterminal comprises displaying different message content on a display device of the radioterminal based on the broadcast message and in response to the radioterminal being in different ones of the plurality of different geographic regions of applicability.
12. The method of Claim 10, wherein activating different ones of a plurality of functional modes of the radioterminal comprises generating different audible announcements by the radioterminal based on the broadcast message and in response to the radioterminal being in different ones of the plurality of different geographic regions of applicability.
13. The method of Claim 1 , wherein determining at the radioterminal whether the radioterminal is located within the region of applicability comprises: determining a geographic location of the radioterminal responsive to received global positioning system signals; and comparing the determined geographic location of the radioterminal to the region of applicability defined by the broadcast message.
14. The method of Claim 13, wherein comparing the determined geographic location of the radioterminal to the region of applicability defined by the broadcast message comprises determining whether the geographic location of the radioterminal is within a geographic boundary defined by the region of applicability.
15. The method' of Claim 13, wherein comparing the determined geographic location of the radioterminal to the region of applicability defined by the broadcast message comprises determining whether the geographic location of the radioterminal is within a defined radius of a geographic location defined by the region of applicability.
16. The method of Claim 1 , wherein determining at the radioterminal whether the radioterminal is located within the region of applicability comprises: determining a geographic location of the radioterminal based on range estimates derived from cellular communication signals received from and/or transmitted to a plurality of cellular base stations having known geographic locations; and determining at the radioterminal whether the determined geographic location of the radioterminal is located within the region of applicability.
17. The method of Claim 1 , wherein determining at the radioterminal whether the radioterminal is located within the region of applicability comprises: determining a geographic location of the radioterminal based on range estimates derived from digital television signals received at the radioterminal from a plurality of digital television base station transceivers having known geographic locations; and determining at the radioterminal whether the determined geographic location of the radioterminal is located within the region of applicability.
18. The method of Claim 1 , wherein: the received broadcast message further comprises a group address that defines a group of radioterminal s for which the broadcast message is applicable; determining at the radioterminal whether the radioterminal is located within the region of applicability further comprises determining at the radioterminal whether the radioterminal is a member of the group of radioterminals defined by the group address for which the broadcast message is applicable; and activating a functional mode of the radioterminal further comprises activating the functional mode of the radioterminal in response to the radioterminal being in the region of applicability and being a member of the group of radioterminals for which the broadcast message is applicable.
19. The method of Claim 1, wherein receiving at the radioterminal over a wireless air interface a broadcast message comprises: partially decoding the broadcast message to obtain the region of applicability; and further decoding the broadcast message to obtain payload information defined by the broadcast message responsive to the radioterminal being in the region of applicability.
20. The method of Claim 19, wherein: the received broadcast message comprises a header portion that defines the region of applicability and a payload portion that comprises the payload information; partially decoding the broadcast message comprises decoding the header portion of the broadcast message to obtain the region of applicability; and further decoding the broadcast message comprises decoding the payload portion to obtain the payload information in response to the radioterminal being in the region of applicability.
21. The method of Claim 1 , wherein receiving at the radioterminal over a wireless air interface a broadcast message comprises receiving a continuous broadcast message data stream that comprises region information that defines the region of applicability and which is encoded at multiple locations within the broadcast message data stream, and the broadcast message further comprises payload information between the region information.
22. The method of Claim 21, wherein receiving at the radioterminal over a wireless air interface a broadcast message comprises: decoding the region information received in the broadcast message data stream to obtain the region of applicability; and decoding payload information received after the received region information in response to the radioterminal being in the region of applicability obtained from the decoded region information.
23. The method of Claim 22, wherein: the region information repeated within the received broadcast message data stream defines different geographic regions of applicability over time; and receiving at the radioterminal over a wireless air interface a broadcast message further comprises ceasing decoding of the payload information in response to the radioterminal not being within a last obtained region of applicability.
24. The method of Claim 21 , wherein the region information repeated within the received broadcast message data stream defines different geographic regions of applicability over time, and further comprising: deactivating the functional mode of the radioterminal in response to the radioterminal not being within a last obtained region of applicability.
25. The method of Claim 1, further comprising selectively storing at least a portion of the received broadcast message in a non- volatile memory within the radioterminal responsive to the determination of whether the radioterminal is located within the region of applicability.
26. The method of Claim 1 , wherein the received broadcast message further comprises payload information, and further comprising: displaying the payload information on a display device of the radioterminal in response to the radioterminal being in the region of applicability; and storing at least a portion of the payload information and associated region of applicability in a non-volatile memory within the radioterminal in response to the radioterminal being outside the region of applicability.
27. The method of Claim 26, further comprising: retrieving the stored payload information from the non-volatile memory in response to the radioterminal becoming within the region of applicability; and displaying the retrieved payload information on the display device.
28. The method of Claim 1 , wherein the received broadcast message further comprises payload information, and further comprising: generating an audible announcement from the radioterminal based on the payload information and in response to the radioterminal being in the region of applicability; and storing at least a portion of the payload information and associated region of applicability in a non-volatile memory within the radioterminal in response to the radioterminal being outside the region of applicability.
29. The method of Claim 28, further comprising: retrieving the stored payload information from the non- volatile memory in response to the radioterminal becoming within the region of applicability; and generating an audible announcement from the radioterminal based on the retrieved payload information.
30. A radioterminal comprising: a user interface that is configured to communicate information to a user of the radioterminal; a wireless transceiver that is configured to receive over a wireless air interface a broadcast message that comprises region information that defines a geographic region of applicability; a location determination unit that is configured to determine a geographic location of the radioterminal; and a controller that is configured to determine whether the radioterminal is located in the region of applicability based on the region information from the broadcast message and the determined location of the radioterminal, and to activate a functional mode of the radioterminal in response to being in the region of applicability.
31. The radioterminal of Claim 30, wherein the controller is further configured to activate a functional mode of the user interface in response to the radioterminal being in the region of applicability.
32. The radioterminal of Claim 30, wherein the user interface comprises a display device, and the controller is further configured to display first payload information defined by the broadcast message on the display device in response to the radioterminal being in the region of applicability.
33. The radioterminal of Claim 32, wherein the controller is further configured to display second payload information defined by the broadcast message, which is different from the first payload information, on the display device in response to the radioterminal being outside the region of applicability.
34. The radioterminal of Claim 30, wherein the user interface comprises a speaker, and the controller is further configured to generate an audible announcement through the speaker based on the broadcast message and in response to the radioterminal being in the region of applicability.
35. The radioterminal of Claim 34, wherein the controller is further configured to generate a second audible announcement, which is different than the first audible announcement, through the speaker based on the broadcast message and in response to the radioterminal being in the region of applicability.
36. The radioterminal of Claim 30, wherein the user interface comprises a vibration device, and the controller is further configured to generate a vibration having first characteristics to alert a user of the radioterminal in response to the radioterminal being in the region of applicability.
37. The radioterminal of Claim 36, wherein the controller is further configured to generate a vibration having second characteristics, which are different from the first characteristics in response to the radioterminal being outside the region of applicability.
38. The radioterminal of Claim 30, wherein: the broadcast message received by the wireless transceiver comprises region information that defines a plurality of different geographic regions of applicability; and the controller is further configured to activate different functional modes of the radioterminal in response to the radioterminal being in different ones of the plurality of different geographic regions of applicability.
39. The radioterminal of Claim 30, wherein: the controller is further configured to determine whether the determined geographic location of the radioterminal is within a geographic boundary defined by the region of applicability.
40. The radioterminal of Claim 30, wherein: the controller is further configured to determine whether the determined geographic location of the radioterminal is within a defined radius of a geographic location defined by the region of applicability.
41. The radioterminal of Claim 30, wherein: the location determination unit comprises a global positioning system (GPS) receiver that is configured to determine the geographic location of the radioterminal responsive to GPS signals received by the GPS receiver; and the controller is further configured to compare the determined geographic location of the radioterminal to the region of applicability defined by the broadcast message.
42. The radioterminal of Claim 30, wherein: the wireless transceiver comprises a cellular transceiver that is configured to communicate with cellular base station transceivers; the location determination unit is configured to determine the geographic location of the radioterminal based on range estimates derived from cellular communication signals received from and/or transmitted to a plurality of cellular base stations having known geographic locations; and the controller is further configured to determine whether the determined geographic location of the radioterminal is located within the region of applicability.
43. The radioterminal of Claim 30, wherein: the wireless transceiver comprises a digital television transceiver that is configured to receive digital television signals from digital television base station transceivers; the location determination unit is configured to determine the geographic location of the radioterminal based on range estimates derived from digital television signals received from a plurality of the digital television base station transceivers having known geographic locations; and the controller is further configured to determine whether the determined geographic location of the radioterminal is located within the region of applicability.
44. The radioterminal of Claim 30, wherein the received broadcast message further comprises a group address that defines a group of radioterminals for which the broadcast message is applicable, and the controller is further configured to determine whether the radioterminal is a member of the group of radioterminals defined by the group address for which the broadcast message is applicable and to activating the functional mode of the radioterminal in response to the radioterminal being in the region of applicability and being a member of the group of radioterminals for which the broadcast message is applicable.
45. The radioterminal of Claim 30, wherein the wireless transceiver is further configured to partially decode the broadcast message to obtain the region of applicability, and to further decode the broadcast message to obtain payload information defined by the broadcast message responsive to the radioterminal being in the region of applicability.
46. The radioterminal of Claim 45, wherein the received broadcast message comprises a header portion that defines the region of applicability and a payload portion that comprises the payload information, and the wireless transceiver is further configured to partially decode the header portion of the broadcast message to obtain the region of applicability and to further decode the payload portion to obtain the payload information in response to the radioterminal being in the region of applicability.
47. The radioterminal of Claim 30, further comprising a non-volatile memory, and wherein the controller is further configured to store at least a portion of the received broadcast message in the non-volatile memory responsive to the determination of whether the radioterminal is located within the region of applicability.
48. The radioterminal of Claim 47, further comprising a display device, and wherein: the received broadcast message further comprises payload information; and the controller is further configured to displaying the payload information on the display device in response to the radioterminal being in the region of applicability, and to store at least a portion of the payload information and associated region of applicability in the non-volatile memory in response to the radioterminal being outside the region of applicability.
49. The radioterminal of Claim 48, wherein the controller is further configured to retrieve the stored payload information from the non-volatile memory in response to the radioterminal becoming within the region of applicability, and to display the retrieved payload information on the display device.
50. The radioterminal of Claim 47, further comprising a speaker, and wherein: the received broadcast message further comprises payload information; and the controller is further configured to generate an audible announcement through the speaker based on the payload information and in response to the radioterminal being in the region of applicability, and to store at least a portion of the payload information and associated region of applicability in the non-volatile memory in response to the radioterminal being outside the region of applicability.
51. The radioterminal of Claim 50, wherein the controller is further configured to retrieve the stored payload information from the non-volatile memory in response to the radioterminal becoming within the region of applicability and to generate an audible announcement through the speaker based on the retrieved payload information.
52. A broadcast message generation console comprising: a communications interface communicatively coupled to a base station radio- transmitter; and a controller that is configured to generate a broadcast message that comprises payload information and region information that defines a geographic region of applicability for the payload information, and to communicate the broadcast message through the communications interface for broadcast by the base station radio- transmitter to a geographic region that includes the geographic region of applicability.
53. The broadcast message generation console of Claim 52, wherein the controller is further configured to generate within the broadcast message a group address that defines a group of radioterminal s for which the broadcast message is applicable.
54. The broadcast message generation console of Claim 52, wherein the controller is further configured to encode the region information within a header portion of the broadcast message.
55. The broadcast message generation console of Claim 52, wherein the controller is further configured to generate a continuous broadcast message data stream that comprises the broadcast message, to encode the region information that can vary over time within multiple locations in the broadcast message data stream, to encode the payload information at defined locations in the broadcast message data stream between the locations of the encoded region information, and to communicate the broadcast message data stream through the communications interface for broadcast by the base station radio-transmitter.
56. The broadcast message generation console of Claim 52, wherein the controller is further configured to communicate the broadcast message through the communications interface to a satellite base station transceiver for broadcast by a satellite to the geographic region that includes the geographic region of applicability.
57. The broadcast message generation console of Claim 52, wherein the controller is further configured to communicate the broadcast message through the communications interface to a terrestrial cellular base station transceiver for broadcast to the geographic region that includes the geographic region of applicability.
58. The broadcast message generation console of Claim 52, wherein the controller is further configured to communicate the broadcast message through the communications interface to a terrestrial digital television base station transmitter for broadcast to the geographic region that includes the geographic region of applicability.
58. A method of generating a broadcast message, the method comprising: generating a broadcast message that comprises payload information and region information that defines a geographic region of applicability for the payload information; and communicating the broadcast message to a base station radio-transmitter for broadcast to a geographic region that includes the geographic region of applicability.
59. The method of Claim 58, wherein the generated broadcast message further comprises a group address that defines a group of radioterminals for which the broadcast message is applicable.
60. The method of Claim 58, wherein generating a broadcast message comprises encoding the region information within a header portion of the broadcast message.
61. The method of Claim 58, wherein generating a broadcast message comprises: generating a continuous broadcast message data stream that comprises the broadcast message; encoding the region information that can vary over time within multiple locations in the broadcast message data stream; encoding the payload information at defined locations in the broadcast message data stream between the locations of the encoded region information; and communicating the broadcast message data stream to the base station radio- transmitter for broadcast to the geographic region that includes the geographic region of applicability.
62. The method of Claim 58, wherein communicating the broadcast message to a base station radio-transmitter comprises communicating the broadcast message to a satellite base station transceiver for broadcast by a satellite to the geographic region that includes the geographic region of applicability.
63. The method of Claim 58, wherein communicating the broadcast message to a base station radio-transmitter comprises communicating the broadcast message to a terrestrial base station transceiver for broadcast to the geographic region that includes the geographic region of applicability.
64. The method of Claim 58, wherein communicating the broadcast message to a base station radio-transmitter comprises communicating the broadcast message to a terrestrial digital television base station transmitter for broadcast to the geographic region that includes the geographic region of applicability.
PCT/US2005/044216 2004-12-16 2005-12-07 Location-based broadcast messaging for radioterminal users WO2006076095A1 (en)

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Families Citing this family (142)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7174127B2 (en) * 1999-08-10 2007-02-06 Atc Technologies, Llc Data communications systems and methods using different wireless links for inbound and outbound data
US7558568B2 (en) * 2003-07-28 2009-07-07 Atc Technologies, Llc Systems and methods for modifying antenna radiation patterns of peripheral base stations of a terrestrial network to allow reduced interference
US6859652B2 (en) 2000-08-02 2005-02-22 Mobile Satellite Ventures, Lp Integrated or autonomous system and method of satellite-terrestrial frequency reuse using signal attenuation and/or blockage, dynamic assignment of frequencies and/or hysteresis
US6892068B2 (en) * 2000-08-02 2005-05-10 Mobile Satellite Ventures, Lp Coordinated satellite-terrestrial frequency reuse
US8265637B2 (en) 2000-08-02 2012-09-11 Atc Technologies, Llc Systems and methods for modifying antenna radiation patterns of peripheral base stations of a terrestrial network to allow reduced interference
US7792488B2 (en) 2000-12-04 2010-09-07 Atc Technologies, Llc Systems and methods for transmitting electromagnetic energy over a wireless channel having sufficiently weak measured signal strength
US7792069B2 (en) * 2001-09-14 2010-09-07 Atc Technologies, Llc Systems and methods for terrestrial reuse of cellular satellite frequency spectrum using different channel separation technologies in forward and reverse links
US7062267B2 (en) * 2001-09-14 2006-06-13 Atc Technologies, Llc Methods and systems for modifying satellite antenna cell patterns in response to terrestrial reuse of satellite frequencies
US8270898B2 (en) 2001-09-14 2012-09-18 Atc Technologies, Llc Satellite-band spectrum utilization for reduced or minimum interference
US7664460B2 (en) 2001-09-14 2010-02-16 Atc Technologies, Llc Systems and methods for terrestrial reuse of cellular satellite frequency spectrum in a time-division duplex and/or frequency-division duplex mode
US7113778B2 (en) * 2001-09-14 2006-09-26 Atc Technologies, Llc Aggregate radiated power control for multi-band/multi-mode satellite radiotelephone communications systems and methods
US7447501B2 (en) * 2001-09-14 2008-11-04 Atc Technologies, Llc Systems and methods for monitoring selected terrestrially used satellite frequency signals to reduce potential interference
US7623859B2 (en) * 2001-09-14 2009-11-24 Atc Technologies, Llc Additional aggregate radiated power control for multi-band/multi-mode satellite radiotelephone communications systems and methods
US7593724B2 (en) 2001-09-14 2009-09-22 Atc Technologies, Llc Systems and methods for terrestrial reuse of cellular satellite frequency spectrum in a time-division duplex mode
US7603117B2 (en) 2001-09-14 2009-10-13 Atc Technologies, Llc Systems and methods for terrestrial use of cellular satellite frequency spectrum
US6856787B2 (en) 2002-02-12 2005-02-15 Mobile Satellite Ventures, Lp Wireless communications systems and methods using satellite-linked remote terminal interface subsystems
US7593691B2 (en) * 2002-02-12 2009-09-22 Atc Technologies, Llc Systems and methods for controlling a level of interference to a wireless receiver responsive to a power level associated with a wireless transmitter
US6937857B2 (en) 2002-05-28 2005-08-30 Mobile Satellite Ventures, Lp Systems and methods for reducing satellite feeder link bandwidth/carriers in cellular satellite systems
US7421342B2 (en) * 2003-01-09 2008-09-02 Atc Technologies, Llc Network-assisted global positioning systems, methods and terminals including doppler shift and code phase estimates
US7203490B2 (en) 2003-03-24 2007-04-10 Atc Technologies, Llc Satellite assisted push-to-send radioterminal systems and methods
US7340213B2 (en) * 2003-07-30 2008-03-04 Atc Technologies, Llc Intra- and/or inter-system interference reducing systems and methods for satellite communications systems
US7113743B2 (en) 2003-09-11 2006-09-26 Atc Technologies, Llc Systems and methods for inter-system sharing of satellite communications frequencies within a common footprint
WO2005032170A2 (en) 2003-09-23 2005-04-07 Atc Technologies, Llc Systems and methods for mobility management in overlaid satellite and terrestrial communications systems
US8094804B2 (en) * 2003-09-26 2012-01-10 Avaya Inc. Method and apparatus for assessing the status of work waiting for service
US8655398B2 (en) 2004-03-08 2014-02-18 Atc Technologies, Llc Communications systems and methods including emission detection
US8000989B1 (en) 2004-03-31 2011-08-16 Avaya Inc. Using true value in routing work items to resources
US7953859B1 (en) 2004-03-31 2011-05-31 Avaya Inc. Data model of participation in multi-channel and multi-party contacts
US7734032B1 (en) 2004-03-31 2010-06-08 Avaya Inc. Contact center and method for tracking and acting on one and done customer contacts
US7606590B2 (en) * 2004-04-07 2009-10-20 Atc Technologies, Llc Satellite/hands-free interlock systems and/or companion devices for radioterminals and related methods
US7636566B2 (en) 2004-04-12 2009-12-22 Atc Technologies, Llc Systems and method with different utilization of satellite frequency bands by a space-based network and an ancillary terrestrial network
US20050239399A1 (en) * 2004-04-21 2005-10-27 Karabinis Peter D Mobile terminals and set top boxes including multiple satellite band service links, and related systems and methods
US8265549B2 (en) 2004-05-18 2012-09-11 Atc Technologies, Llc Satellite communications systems and methods using radiotelephone
US8738412B2 (en) 2004-07-13 2014-05-27 Avaya Inc. Method and apparatus for supporting individualized selection rules for resource allocation
CA2576521C (en) * 2004-08-11 2016-09-20 Atc Technologies, Llc Satellite-band spectrum utilization for reduced or minimum interference
US8234141B1 (en) 2004-09-27 2012-07-31 Avaya Inc. Dynamic work assignment strategies based on multiple aspects of agent proficiency
US7949121B1 (en) 2004-09-27 2011-05-24 Avaya Inc. Method and apparatus for the simultaneous delivery of multiple contacts to an agent
US7639981B2 (en) 2004-11-02 2009-12-29 Atc Technologies, Llc Apparatus and methods for power control in satellite communications systems with satellite-linked terrestrial stations
US7454175B2 (en) * 2004-12-07 2008-11-18 Atc Technologies, Llc Broadband wireless communications systems and methods using multiple non-contiguous frequency bands/segments
US8594704B2 (en) * 2004-12-16 2013-11-26 Atc Technologies, Llc Location-based broadcast messaging for radioterminal users
EP2254265A3 (en) * 2005-01-05 2013-11-27 ATC Technologies, LLC Adaptive beam forming with multi-user detection and interference reduction in satellite communication systems and methods
US7596111B2 (en) 2005-01-27 2009-09-29 Atc Technologies, Llc Satellite/terrestrial wireless communications systems and methods using disparate channel separation codes
US7756490B2 (en) * 2005-03-08 2010-07-13 Atc Technologies, Llc Methods, radioterminals, and ancillary terrestrial components for communicating using spectrum allocated to another satellite operator
US7627285B2 (en) * 2005-03-14 2009-12-01 Atc Technologies, Llc Satellite communications systems and methods with distributed and/or centralized architecture including ground-based beam forming
WO2006099443A1 (en) 2005-03-15 2006-09-21 Atc Technologies, Llc Intra-system and/or inter-system reuse of feeder link frequencies including interference suppression systems and methods
US7567653B1 (en) * 2005-03-22 2009-07-28 Avaya Inc. Method by which call centers can vector inbound TTY calls automatically to TTY-enabled resources
US8769046B2 (en) * 2005-03-23 2014-07-01 Qualcomm Incorporated Methods and apparatus for using multiple wireless links with a wireless terminal
US7453396B2 (en) * 2005-04-04 2008-11-18 Atc Technologies, Llc Radioterminals and associated operating methods that alternate transmission of wireless communications and processing of global positioning system signals
US7809127B2 (en) 2005-05-26 2010-10-05 Avaya Inc. Method for discovering problem agent behaviors
US7817967B2 (en) 2005-06-21 2010-10-19 Atc Technologies, Llc Communications systems including adaptive antenna systems and methods for inter-system and intra-system interference reduction
US7970345B2 (en) 2005-06-22 2011-06-28 Atc Technologies, Llc Systems and methods of waveform and/or information splitting for wireless transmission of information to one or more radioterminals over a plurality of transmission paths and/or system elements
US7907944B2 (en) * 2005-07-05 2011-03-15 Atc Technologies, Llc Methods, apparatus and computer program products for joint decoding of access probes in a CDMA communications system
US7583935B2 (en) * 2005-07-08 2009-09-01 Telcom Ventures, Llc Method and system for mitigating co-channel interference
US8190114B2 (en) * 2005-07-20 2012-05-29 Atc Technologies, Llc Frequency-dependent filtering for wireless communications transmitters
US7623867B2 (en) * 2005-07-29 2009-11-24 Atc Technologies, Llc Satellite communications apparatus and methods using asymmetrical forward and return link frequency reuse
US7779042B1 (en) 2005-08-08 2010-08-17 Avaya Inc. Deferred control of surrogate key generation in a distributed processing architecture
US7831202B2 (en) 2005-08-09 2010-11-09 Atc Technologies, Llc Satellite communications systems and methods using substantially co-located feeder link antennas
US7248217B2 (en) * 2005-08-31 2007-07-24 Tzero Technologies, Inc. Average EIRP control of multiple antenna transmission signals
US7822587B1 (en) 2005-10-03 2010-10-26 Avaya Inc. Hybrid database architecture for both maintaining and relaxing type 2 data entity behavior
US7787609B1 (en) 2005-10-06 2010-08-31 Avaya Inc. Prioritized service delivery based on presence and availability of interruptible enterprise resources with skills
US7752230B2 (en) 2005-10-06 2010-07-06 Avaya Inc. Data extensibility using external database tables
WO2007047370A2 (en) * 2005-10-12 2007-04-26 Atc Technologies, Llc Systems, methods and computer program products for mobility management in hybrid satellite/terrestrial wireless communications systems
US9316738B2 (en) 2005-12-28 2016-04-19 The Directv Group, Inc. Method and apparatus for controlling a mobile device beyond an area of interest boundary
RU2419989C2 (en) * 2006-01-03 2011-05-27 ТЕЛКОМ ВЕНЧЕРЗ ЭлЭлСи Use of synchronisation and time distribution in combined satellite-land line network with multiplexing with orthogonal frequency division
WO2007084682A1 (en) * 2006-01-20 2007-07-26 Atc Technologies, Llc Systems and methods for forward link closed loop beamforming
US8705436B2 (en) * 2006-02-15 2014-04-22 Atc Technologies, Llc Adaptive spotbeam broadcasting, systems, methods and devices for high bandwidth content distribution over satellite
US8737173B2 (en) 2006-02-24 2014-05-27 Avaya Inc. Date and time dimensions for contact center reporting in arbitrary international time zones
US8923850B2 (en) * 2006-04-13 2014-12-30 Atc Technologies, Llc Systems and methods for controlling base station sectors to reduce potential interference with low elevation satellites
US7751823B2 (en) * 2006-04-13 2010-07-06 Atc Technologies, Llc Systems and methods for controlling a level of interference to a wireless receiver responsive to an activity factor associated with a wireless transmitter
US9014619B2 (en) 2006-05-30 2015-04-21 Atc Technologies, Llc Methods and systems for satellite communications employing ground-based beam forming with spatially distributed hybrid matrix amplifiers
US8169955B2 (en) 2006-06-19 2012-05-01 Atc Technologies, Llc Systems and methods for orthogonal frequency division multiple access (OFDMA) communications over satellite links
US8526941B2 (en) * 2006-06-29 2013-09-03 Atc Technologies, Llc Apparatus and methods for mobility management in hybrid terrestrial-satellite mobile communications systems
US7936867B1 (en) 2006-08-15 2011-05-03 Avaya Inc. Multi-service request within a contact center
US8391463B1 (en) 2006-09-01 2013-03-05 Avaya Inc. Method and apparatus for identifying related contacts
US8938063B1 (en) 2006-09-07 2015-01-20 Avaya Inc. Contact center service monitoring and correcting
US8811597B1 (en) 2006-09-07 2014-08-19 Avaya Inc. Contact center performance prediction
US8929281B2 (en) * 2006-09-15 2015-01-06 Qualcomm Incorporated Methods and apparatus related to peer to peer device
US8452317B2 (en) * 2006-09-15 2013-05-28 Qualcomm Incorporated Methods and apparatus related to power control and/or interference management in a mixed wireless communications system supporting WAN signaling and peer to peer signaling
US8369800B2 (en) * 2006-09-15 2013-02-05 Qualcomm Incorporated Methods and apparatus related to power control and/or interference management in a mixed wireless communications system
US8634869B2 (en) 2006-09-15 2014-01-21 Qualcomm Incorporated Methods and apparatus related to multi-mode wireless communications device supporting both wide area network signaling and peer to peer signaling
US20080070618A1 (en) * 2006-09-15 2008-03-20 Mikael Hjelm Cellular communications device, method and circuit
US20080168487A1 (en) * 2007-01-08 2008-07-10 At&T Knowledge Ventures, L.P. Software-based conditional access to IPTV content
US20080220795A1 (en) * 2007-03-08 2008-09-11 Vanu Bose Home Base Station Position Determination
US20080233895A1 (en) * 2007-03-19 2008-09-25 Bizer Christian D Digital CB system
BRPI0809631B1 (en) * 2007-03-27 2020-03-17 Telcom Ventures Llc METHOD FOR COMMUNICATING BETWEEN A MOBILE DEVICE, AND A FIRST SATELLITE-BASED TRANSCEIVER AND A SECOND TRANSCEIVER BASED ON A BASE STATION, APPLIANCE TO COMMUNICATE WITH A MOBILE DEVICE
US8095145B2 (en) * 2007-03-27 2012-01-10 Telcom Ventures, Llc Method and system of distributing transmissions in a wireless data transmission system
US8031646B2 (en) * 2007-05-15 2011-10-04 Atc Technologies, Llc Systems, methods and devices for reusing spectrum of another operator
US8064824B2 (en) * 2007-07-03 2011-11-22 Atc Technologies, Llc Systems and methods for reducing power robbing impact of interference to a satellite
US8971926B2 (en) * 2007-07-05 2015-03-03 The Directv Group, Inc. Method and apparatus for warning a mobile user approaching a boundary of an area of interest
US8504534B1 (en) 2007-09-26 2013-08-06 Avaya Inc. Database structures and administration techniques for generalized localization of database items
US20090131021A1 (en) * 2007-11-16 2009-05-21 Motorola, Inc. Distribution of an emergency warning using peer-to-peer communications
EP2063620B1 (en) * 2007-11-20 2017-08-23 Alcatel-Lucent USA Inc. Downloadable ringtones for usage in emergency situations
FR2925796B1 (en) * 2007-12-21 2011-02-25 Commissariat Energie Atomique TERRESTRIAL-SATELLITE TELECOMMUNICATIONS HYBRID NETWORK WITH ADAPTABLE TERRESTRIAL RELAY STATIONS
US8856182B2 (en) 2008-01-25 2014-10-07 Avaya Inc. Report database dependency tracing through business intelligence metadata
US7978135B2 (en) * 2008-02-15 2011-07-12 Atc Technologies, Llc Antenna beam forming systems/methods using unconstrained phase response
US8699360B2 (en) * 2008-03-31 2014-04-15 Motorola Solutions, Inc. Communications system for exchanging spectrum sensing measurements through a drop box and method of using same
US9420548B2 (en) * 2008-07-31 2016-08-16 Qualcomm Incorporated Dynamic IoT setpoints and interference control
US8433241B2 (en) 2008-08-06 2013-04-30 Atc Technologies, Llc Systems, methods and devices for overlaid operations of satellite and terrestrial wireless communications systems
GB2463074B (en) * 2008-09-02 2010-12-22 Ip Access Ltd Communication unit and method for selective frequency synchronisation in a cellular communication network
EP2327256B1 (en) * 2008-09-24 2013-03-06 Telefonaktiebolaget L M Ericsson (PUBL) Method and arrangement in a telecommunication system
US8193975B2 (en) 2008-11-12 2012-06-05 Atc Technologies Iterative antenna beam forming systems/methods
US8451985B2 (en) * 2008-11-21 2013-05-28 At&T Intellectual Property I, L.P. Method and apparatus for distributing alerts
FI20086169A0 (en) * 2008-12-05 2008-12-05 Nokia Corp Device, method and radio system
JP5293199B2 (en) * 2009-01-08 2013-09-18 富士通株式会社 Wireless communication device, control device, mobile communication system, and wireless communication method
US9857501B2 (en) * 2009-02-13 2018-01-02 Centurylink Intellectual Property Llc System and method for a wireless phone enabled with weather alerts
US8339308B2 (en) * 2009-03-16 2012-12-25 Atc Technologies Llc Antenna beam forming systems, methods and devices using phase adjusted least squares beam forming
US8107883B2 (en) * 2009-03-23 2012-01-31 Nokia Corporation Apparatus and method for interference avoidance in mixed device-to-device and cellular environment
US8520561B2 (en) * 2009-06-09 2013-08-27 Atc Technologies, Llc Systems, methods and network components that provide different satellite spot beam return carrier groupings and reuse patterns
US8660498B2 (en) * 2009-06-29 2014-02-25 Motorola Solutions, Inc. Method for database driven channel quality estimation in a cognitive radio network
EP2484027B1 (en) 2009-09-28 2017-03-29 ATC Technologies, LLC Systems and methods for adaptive interference cancellation beamforming
US8565386B2 (en) 2009-09-29 2013-10-22 Avaya Inc. Automatic configuration of soft phones that are usable in conjunction with special-purpose endpoints
US10110288B2 (en) 2009-11-04 2018-10-23 Atc Technologies, Llc Frequency division duplex (FDD) return link transmit diversity systems, methods and devices using forward link side information
US9516069B2 (en) 2009-11-17 2016-12-06 Avaya Inc. Packet headers as a trigger for automatic activation of special-purpose softphone applications
US8274925B2 (en) * 2010-01-05 2012-09-25 Atc Technologies, Llc Retaining traffic channel assignments for satellite terminals to provide lower latency communication services
US8780862B2 (en) * 2011-10-14 2014-07-15 The Mitre Corporation VDL2 power control
FR2981528B1 (en) * 2011-10-14 2013-11-29 Astrium Sas METHOD FOR IDENTIFYING REUSABLE MULTIPLEXING RESOURCES AND TELECOMMUNICATION SYSTEM
US8811213B1 (en) * 2012-02-24 2014-08-19 Sprint Communications Company, L.P. Avoiding satellite interference to long term evolution systems
US9325409B1 (en) 2012-04-12 2016-04-26 Tarana Wireless, Inc. Non-line of sight wireless communication system and method
US9252908B1 (en) 2012-04-12 2016-02-02 Tarana Wireless, Inc. Non-line of sight wireless communication system and method
US9735940B1 (en) 2012-04-12 2017-08-15 Tarana Wireless, Inc. System architecture for optimizing the capacity of adaptive array systems
US9591466B2 (en) * 2012-07-06 2017-03-07 Blackberry Limited Method and apparatus for activating an emergency beacon signal
US20150070138A1 (en) * 2012-07-06 2015-03-12 Alan Haddy Detection of buried assets using current location and known buffer zones
US9232377B1 (en) * 2012-10-27 2016-01-05 Sprint Spectrum L.P. Method and system of distributing alerts
US9635617B1 (en) * 2012-11-21 2017-04-25 Sprint Communications Company L.P. Controllable transformer tap to dynamically adjust power distribution levels in wireless networks
US8688071B1 (en) * 2012-12-12 2014-04-01 At&T Intellectual Property I, L.P. Donut alert messaging
US10110270B2 (en) 2013-03-14 2018-10-23 Tarana Wireless, Inc. Precision array processing using semi-coherent transceivers
US10499456B1 (en) * 2013-03-15 2019-12-03 Tarana Wireless, Inc. Distributed capacity base station architecture for broadband access with enhanced in-band GPS co-existence
US9247407B1 (en) 2013-08-14 2016-01-26 Sprint Spectrum L.P. Method and system of distributing alerts within a target area
US9775127B2 (en) * 2013-10-31 2017-09-26 Nec Corporation Radio communication system, radio communication method, base control station, and relay apparatus
US10348394B1 (en) 2014-03-14 2019-07-09 Tarana Wireless, Inc. System architecture and method for enhancing wireless networks with mini-satellites and pseudollites and adaptive antenna processing
US9179285B1 (en) * 2014-05-19 2015-11-03 Disney Enterprises, Inc. Reflection-based location detection
TWI573426B (en) 2015-02-12 2017-03-01 達創科技股份有限公司 Intelligent luminance system,network apparatus and operating method thereof
US9646402B2 (en) 2015-06-19 2017-05-09 International Business Machines Corporation Geographic space management
US9886861B2 (en) * 2015-07-27 2018-02-06 Hoenywell International Inc. Validating air traffic control messages during the course of flight
US9467839B1 (en) * 2015-12-16 2016-10-11 International Business Machines Corporation Management of dynamic events and moving objects
US10594806B2 (en) 2015-12-16 2020-03-17 International Business Machines Corporation Management of mobile objects and resources
US9578093B1 (en) 2015-12-16 2017-02-21 International Business Machines Corporation Geographic space management
US10749639B2 (en) * 2017-01-24 2020-08-18 Mediatek Inc. Bearer switching in reduced radio link quality conditions
AU2019237516B2 (en) * 2018-03-23 2023-07-06 Neustar, Inc. Methods and apparatus to enable device based geo-location messages
CN110621048A (en) 2018-06-19 2019-12-27 索尼公司 User equipment for satellite communication
US11228361B2 (en) * 2019-10-25 2022-01-18 Atlas Space Operations, Inc. System and method for configuring a communications device for space-terrestrial communications
US11200306B1 (en) 2021-02-25 2021-12-14 Telcom Ventures, Llc Methods, devices, and systems for authenticating user identity for location-based deliveries
US11770184B2 (en) 2021-05-21 2023-09-26 Atlas Space Operations, Inc. Satellite contact customization

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1253542A2 (en) * 2001-04-27 2002-10-30 Hewlett-Packard Company Delivery of location significant advertising
US20030143974A1 (en) * 2002-01-30 2003-07-31 Randy Navarro Emergency warning indication over a wireless network
GB2397196A (en) * 2003-01-08 2004-07-14 Nec Technologies Mobile communications device with location dependent mode of operation.
US6785551B1 (en) * 2000-04-07 2004-08-31 Ford Motor Company Method of providing dynamic regionally relevant data to a mobile environment

Family Cites Families (187)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5303286A (en) 1991-03-29 1994-04-12 Space Systems/Loral, Inc. Wireless telephone/satellite roaming system
US4901307A (en) * 1986-10-17 1990-02-13 Qualcomm, Inc. Spread spectrum multiple access communication system using satellite or terrestrial repeaters
US5327572A (en) * 1990-03-06 1994-07-05 Motorola, Inc. Networked satellite and terrestrial cellular radiotelephone systems
US5073900A (en) * 1990-03-19 1991-12-17 Mallinckrodt Albert J Integrated cellular communications system
US5446756A (en) * 1990-03-19 1995-08-29 Celsat America, Inc. Integrated cellular communications system
US5835857A (en) * 1990-03-19 1998-11-10 Celsat America, Inc. Position determination for reducing unauthorized use of a communication system
US5878329A (en) * 1990-03-19 1999-03-02 Celsat America, Inc. Power control of an integrated cellular communications system
US6067442A (en) * 1991-10-10 2000-05-23 Globalstar L.P. Satellite communications system having distributed user assignment and resource assignment with terrestrial gateways
US5526404A (en) * 1991-10-10 1996-06-11 Space Systems/Loral, Inc. Worldwide satellite telephone system and a network coordinating gateway for allocating satellite and terrestrial gateway resources
CA2105710A1 (en) 1992-11-12 1994-05-13 Raymond Joseph Leopold Network of hierarchical communication systems and method therefor
US5418537A (en) * 1992-11-18 1995-05-23 Trimble Navigation, Ltd. Location of missing vehicles
US6157811A (en) 1994-01-11 2000-12-05 Ericsson Inc. Cellular/satellite communications system with improved frequency re-use
US5619503A (en) 1994-01-11 1997-04-08 Ericsson Inc. Cellular/satellite communications system with improved frequency re-use
US5511233A (en) * 1994-04-05 1996-04-23 Celsat America, Inc. System and method for mobile communications in coexistence with established communications systems
WO1995034153A1 (en) 1994-06-08 1995-12-14 Hughes Aircraft Company Apparatus and method for hybrid network access
US5584046A (en) 1994-11-04 1996-12-10 Cornell Research Foundation, Inc. Method and apparatus for spectrum sharing between satellite and terrestrial communication services using temporal and spatial synchronization
FR2729025B1 (en) * 1995-01-02 1997-03-21 Europ Agence Spatiale METHOD AND SYSTEM FOR TRANSMITTING RADIO SIGNALS VIA A SATELLITE NETWORK BETWEEN A FIXED EARTH STATION AND MOBILE USER TERMINALS
US6240124B1 (en) * 1995-06-06 2001-05-29 Globalstar L.P. Closed loop power control for low earth orbit satellite communications system
RU2153226C2 (en) 1995-06-06 2000-07-20 Глоубалстар Л.П. Device for controlling distributed signal transmission system using satellite retransmitters
US5619525A (en) * 1995-06-06 1997-04-08 Globalstar L.P. Closed loop power control for low earth orbit satellite communications system
US5841767A (en) 1995-07-20 1998-11-24 Ntt Mobile Communications Network Inc. Mobile communication system using efficient service area expansion scheme
EP0762669B1 (en) 1995-08-18 2011-06-15 Ntt Mobile Communications Network Inc. Communication mode switching method for mobile station
US5991345A (en) 1995-09-22 1999-11-23 Qualcomm Incorporated Method and apparatus for diversity enhancement using pseudo-multipath signals
US5930708A (en) 1996-03-21 1999-07-27 Trw Inc. Communications satellite router-formatter
US6449461B1 (en) * 1996-07-15 2002-09-10 Celsat America, Inc. System for mobile communications in coexistence with communication systems having priority
US5926758A (en) * 1996-08-26 1999-07-20 Leo One Ip, L.L.C. Radio frequency sharing methods for satellite systems
US6072768A (en) 1996-09-04 2000-06-06 Globalstar L.P. Automatic satellite/terrestrial mobile terminal roaming system and method
GB2317074B (en) 1996-09-09 1998-10-28 I Co Global Communications Communications apparatus and method
GB2317303B (en) * 1996-09-09 1998-08-26 I Co Global Communications Communications apparatus and method
US5761605A (en) * 1996-10-11 1998-06-02 Northpoint Technology, Ltd. Apparatus and method for reusing satellite broadcast spectrum for terrestrially broadcast signals
US5896558A (en) 1996-12-19 1999-04-20 Globalstar L.P. Interactive fixed and mobile satellite network
US6801515B1 (en) * 1996-12-27 2004-10-05 Ntt Mobile Communications Network Inc. Call acceptance control method for CDMA mobile radio communication system and mobile station device
US6091933A (en) * 1997-01-03 2000-07-18 Globalstar L.P. Multiple satellite system power allocation by communication link optimization
JPH10261987A (en) * 1997-03-19 1998-09-29 Fujitsu Ltd Two-layer constitution satellite communication system and its geostationary satellite
US5937332A (en) * 1997-03-21 1999-08-10 Ericsson, Inc. Satellite telecommunications repeaters and retransmission methods
EP0869628A1 (en) * 1997-04-01 1998-10-07 ICO Services Ltd. Interworking between telecommunications networks
GB2324218A (en) * 1997-04-09 1998-10-14 Ico Services Ltd Satellite acquisition in navigation system
US5884142A (en) * 1997-04-15 1999-03-16 Globalstar L.P. Low earth orbit distributed gateway communication system
US6084510A (en) * 1997-04-18 2000-07-04 Lemelson; Jerome H. Danger warning and emergency response system and method
CA2411993C (en) * 1997-04-24 2009-05-19 Ntt Mobile Communications Network Inc. Method and system for mobile communications
US6032041A (en) * 1997-06-02 2000-02-29 Hughes Electronics Corporation Method and system for providing wideband communications to mobile users in a satellite-based network
US6134437A (en) 1997-06-13 2000-10-17 Ericsson Inc. Dual-mode satellite/cellular phone architecture with physically separable mode
US6011951A (en) * 1997-08-22 2000-01-04 Teledesic Llc Technique for sharing radio frequency spectrum in multiple satellite communication systems
US6052586A (en) * 1997-08-29 2000-04-18 Ericsson Inc. Fixed and mobile satellite radiotelephone systems and methods with capacity sharing
US6085094A (en) * 1997-08-29 2000-07-04 Nortel Networks Corporation Method for optimizing spectral re-use
US5907541A (en) * 1997-09-17 1999-05-25 Lockheed Martin Corp. Architecture for an integrated mobile and fixed telecommunications system including a spacecraft
US6101385A (en) * 1997-10-09 2000-08-08 Globalstar L.P. Satellite communication service with non-congruent sub-beam coverage
US6052560A (en) * 1997-10-15 2000-04-18 Ericsson Inc Satellite system utilizing a plurality of air interface standards and method employing same
US6157834A (en) 1997-12-29 2000-12-05 Motorola, Inc. Terrestrial and satellite cellular network interoperability
US6418147B1 (en) * 1998-01-21 2002-07-09 Globalstar Lp Multiple vocoder mobile satellite telephone system
US6735437B2 (en) * 1998-06-26 2004-05-11 Hughes Electronics Corporation Communication system employing reuse of satellite spectrum for terrestrial communication
US6775251B1 (en) * 1998-09-17 2004-08-10 Globalstar L.P. Satellite communication system providing multi-gateway diversity and improved satellite loading
US6198730B1 (en) * 1998-10-13 2001-03-06 Motorola, Inc. Systems and method for use in a dual mode satellite communications system
US6198921B1 (en) * 1998-11-16 2001-03-06 Emil Youssefzadeh Method and system for providing rural subscriber telephony service using an integrated satellite/cell system
EP1059826A4 (en) 1998-12-07 2005-08-03 Mitsubishi Electric Corp Mobile communication device and mobile communication system
US6177873B1 (en) * 1999-02-08 2001-01-23 International Business Machines Corporation Weather warning apparatus and method
US6498934B1 (en) * 1999-03-24 2002-12-24 Telefonaktiebologet Lm Ericsson (Publ) Channel allocation using enhanced pathloss estimates
US20030194995A1 (en) 1999-05-15 2003-10-16 Lucent Technologies, Inc. Telecommunications system with geographically discriminate broadcasting
US6253080B1 (en) * 1999-07-08 2001-06-26 Globalstar L.P. Low earth orbit distributed gateway communication system
US7174127B2 (en) 1999-08-10 2007-02-06 Atc Technologies, Llc Data communications systems and methods using different wireless links for inbound and outbound data
US6522865B1 (en) * 1999-08-10 2003-02-18 David D. Otten Hybrid satellite communications system
US20030149986A1 (en) * 1999-08-10 2003-08-07 Mayfield William W. Security system for defeating satellite television piracy
US6420993B1 (en) * 1999-08-24 2002-07-16 Raytheon Company Air traffic control system
US6810527B1 (en) 1999-09-27 2004-10-26 News America, Inc. System and method for distribution and delivery of media context and other data to aircraft passengers
US6535747B1 (en) 1999-12-23 2003-03-18 Ericsson Inc. System and method for coverage and interference prediction and tradeoff
EP1250769A1 (en) 2000-01-19 2002-10-23 Ericsson Inc. Diversity system and method in a satellite telecommunication network
GB2365677A (en) * 2000-02-29 2002-02-20 Ico Services Ltd Satellite communications with satellite routing according to channels assignment
US6721572B1 (en) * 2000-03-24 2004-04-13 International Business Machines Corporation Mobile communication optimization near wireless dead zone regions
US7457269B1 (en) 2000-04-20 2008-11-25 Ico Services Ltd Collision avoidance of rach signals in a TDMA satellite communication system
WO2001084873A1 (en) 2000-05-01 2001-11-08 Mitsubishi Denki Kabushiki Kaisha Connection-control method for mobile communication system
US20040203393A1 (en) 2002-03-13 2004-10-14 Xiang Chen System and method for offsetting channel spectrum to reduce interference between two communication networks
US8265637B2 (en) 2000-08-02 2012-09-11 Atc Technologies, Llc Systems and methods for modifying antenna radiation patterns of peripheral base stations of a terrestrial network to allow reduced interference
US6859652B2 (en) 2000-08-02 2005-02-22 Mobile Satellite Ventures, Lp Integrated or autonomous system and method of satellite-terrestrial frequency reuse using signal attenuation and/or blockage, dynamic assignment of frequencies and/or hysteresis
US6892068B2 (en) 2000-08-02 2005-05-10 Mobile Satellite Ventures, Lp Coordinated satellite-terrestrial frequency reuse
US7558568B2 (en) * 2003-07-28 2009-07-07 Atc Technologies, Llc Systems and methods for modifying antenna radiation patterns of peripheral base stations of a terrestrial network to allow reduced interference
US6628919B1 (en) * 2000-08-09 2003-09-30 Hughes Electronics Corporation Low-cost multi-mission broadband communications payload
US7792488B2 (en) 2000-12-04 2010-09-07 Atc Technologies, Llc Systems and methods for transmitting electromagnetic energy over a wireless channel having sufficiently weak measured signal strength
US20030003815A1 (en) * 2000-12-20 2003-01-02 Yoshiko Yamada Communication satellite/land circuits selection communications system
DE60111347T2 (en) 2001-02-12 2006-03-16 Ico Services Ltd., Uxbridge Apparatus and method for mobile communication in dual earth satellite mode
US6950625B2 (en) 2001-02-12 2005-09-27 Ico Services Limited Communications apparatus and method
US7035647B2 (en) * 2002-02-07 2006-04-25 Openwave Systems Inc. Efficient location determination for mobile units
WO2002076703A2 (en) * 2001-03-21 2002-10-03 Bosch Rexroth Ag Electromechanical clamping device
US6714760B2 (en) 2001-05-10 2004-03-30 Qualcomm Incorporated Multi-mode satellite and terrestrial communication device
GB0113751D0 (en) * 2001-06-06 2001-07-25 Dow Corning Surface treatment
US6684057B2 (en) * 2001-09-14 2004-01-27 Mobile Satellite Ventures, Lp Systems and methods for terrestrial reuse of cellular satellite frequency spectrum
US7603117B2 (en) * 2001-09-14 2009-10-13 Atc Technologies, Llc Systems and methods for terrestrial use of cellular satellite frequency spectrum
US7031702B2 (en) * 2001-09-14 2006-04-18 Atc Technologies, Llc Additional systems and methods for monitoring terrestrially reused satellite frequencies to reduce potential interference
US7447501B2 (en) 2001-09-14 2008-11-04 Atc Technologies, Llc Systems and methods for monitoring selected terrestrially used satellite frequency signals to reduce potential interference
US7062267B2 (en) * 2001-09-14 2006-06-13 Atc Technologies, Llc Methods and systems for modifying satellite antenna cell patterns in response to terrestrial reuse of satellite frequencies
US8270898B2 (en) * 2001-09-14 2012-09-18 Atc Technologies, Llc Satellite-band spectrum utilization for reduced or minimum interference
US7890098B2 (en) 2001-09-14 2011-02-15 Atc Technologies, Llc Staggered sectorization for terrestrial reuse of satellite frequencies
US6785543B2 (en) * 2001-09-14 2004-08-31 Mobile Satellite Ventures, Lp Filters for combined radiotelephone/GPS terminals
US7603081B2 (en) 2001-09-14 2009-10-13 Atc Technologies, Llc Radiotelephones and operating methods that use a single radio frequency chain and a single baseband processor for space-based and terrestrial communications
US6999720B2 (en) * 2001-09-14 2006-02-14 Atc Technologies, Llc Spatial guardbands for terrestrial reuse of satellite frequencies
US7006789B2 (en) * 2001-09-14 2006-02-28 Atc Technologies, Llc Space-based network architectures for satellite radiotelephone systems
US7155340B2 (en) * 2001-09-14 2006-12-26 Atc Technologies, Llc Network-assisted global positioning systems, methods and terminals including doppler shift and code phase estimates
US7218931B2 (en) * 2001-09-14 2007-05-15 Atc Technologies, Llc Satellite radiotelephone systems providing staggered sectorization for terrestrial reuse of satellite frequencies and related methods and radiotelephone systems
US7593724B2 (en) * 2001-09-14 2009-09-22 Atc Technologies, Llc Systems and methods for terrestrial reuse of cellular satellite frequency spectrum in a time-division duplex mode
US7792069B2 (en) 2001-09-14 2010-09-07 Atc Technologies, Llc Systems and methods for terrestrial reuse of cellular satellite frequency spectrum using different channel separation technologies in forward and reverse links
US7113778B2 (en) * 2001-09-14 2006-09-26 Atc Technologies, Llc Aggregate radiated power control for multi-band/multi-mode satellite radiotelephone communications systems and methods
US7181161B2 (en) * 2001-09-14 2007-02-20 Atc Technologies, Llc Multi-band/multi-mode satellite radiotelephone communications systems and methods
US7664460B2 (en) * 2001-09-14 2010-02-16 Atc Technologies, Llc Systems and methods for terrestrial reuse of cellular satellite frequency spectrum in a time-division duplex and/or frequency-division duplex mode
US7623859B2 (en) * 2001-09-14 2009-11-24 Atc Technologies, Llc Additional aggregate radiated power control for multi-band/multi-mode satellite radiotelephone communications systems and methods
US7039400B2 (en) * 2001-09-14 2006-05-02 Atc Technologies, Llc Systems and methods for monitoring terrestrially reused satellite frequencies to reduce potential interference
US6882837B2 (en) * 2002-01-23 2005-04-19 Dennis Sunga Fernandez Local emergency alert for cell-phone users
US7593691B2 (en) 2002-02-12 2009-09-22 Atc Technologies, Llc Systems and methods for controlling a level of interference to a wireless receiver responsive to a power level associated with a wireless transmitter
US6856787B2 (en) * 2002-02-12 2005-02-15 Mobile Satellite Ventures, Lp Wireless communications systems and methods using satellite-linked remote terminal interface subsystems
US7039386B2 (en) 2002-04-18 2006-05-02 Lucent Technologies Inc. Cellular base station broadcast method and system
US6937857B2 (en) 2002-05-28 2005-08-30 Mobile Satellite Ventures, Lp Systems and methods for reducing satellite feeder link bandwidth/carriers in cellular satellite systems
US8121605B2 (en) * 2002-06-27 2012-02-21 Globalstar, Inc. Resource allocation to terrestrial and satellite services
US20040080454A1 (en) * 2002-10-23 2004-04-29 Camp William O. Methods and systems for determining the position of a mobile terminal using digital television signals
US7068975B2 (en) * 2002-11-26 2006-06-27 The Directv Group, Inc. Systems and methods for sharing uplink bandwidth among satellites in a common orbital slot
US7617287B2 (en) * 2002-11-27 2009-11-10 Rga Intl, Inc. Cellular messaging alert method and system
US7092708B2 (en) 2002-12-12 2006-08-15 Atc Technologies, Llc Systems and methods for increasing capacity and/or quality of service of terrestrial cellular and satellite systems using terrestrial reception of satellite band frequencies
US7421342B2 (en) 2003-01-09 2008-09-02 Atc Technologies, Llc Network-assisted global positioning systems, methods and terminals including doppler shift and code phase estimates
US6975837B1 (en) 2003-01-21 2005-12-13 The Directv Group, Inc. Method and apparatus for reducing interference between terrestrially-based and space-based broadcast systems
US7444170B2 (en) 2003-03-24 2008-10-28 Atc Technologies, Llc Co-channel wireless communication methods and systems using nonsymmetrical alphabets
US7203490B2 (en) * 2003-03-24 2007-04-10 Atc Technologies, Llc Satellite assisted push-to-send radioterminal systems and methods
US20040193617A1 (en) 2003-03-28 2004-09-30 Adler Robert M. Geographically specific advisory alert broadcasting system
US6879829B2 (en) * 2003-05-16 2005-04-12 Mobile Satellite Ventures, Lp Systems and methods for handover between space based and terrestrial radioterminal communications, and for monitoring terrestrially reused satellite frequencies at a radioterminal to reduce potential interference
US20040240525A1 (en) 2003-05-29 2004-12-02 Karabinis Peter D. Wireless communications methods and apparatus using licensed-use system protocols with unlicensed-use access points
US7340213B2 (en) * 2003-07-30 2008-03-04 Atc Technologies, Llc Intra- and/or inter-system interference reducing systems and methods for satellite communications systems
US8670705B2 (en) * 2003-07-30 2014-03-11 Atc Technologies, Llc Additional intra-and/or inter-system interference reducing systems and methods for satellite communications systems
US20050041619A1 (en) * 2003-08-22 2005-02-24 Karabinis Peter D. Wireless systems, methods and devices employing forward- and/or return-link carriers having different numbers of sub-band carriers
US7113743B2 (en) 2003-09-11 2006-09-26 Atc Technologies, Llc Systems and methods for inter-system sharing of satellite communications frequencies within a common footprint
WO2005032170A2 (en) * 2003-09-23 2005-04-07 Atc Technologies, Llc Systems and methods for mobility management in overlaid satellite and terrestrial communications systems
US20050070247A1 (en) * 2003-09-30 2005-03-31 Larson Keith N. Emergency notification system using presence, triangulation, and wireless telephony
US6917306B2 (en) * 2003-10-23 2005-07-12 Craig K. Lilja Radio linked vehicle communication system
US20050096042A1 (en) * 2003-10-31 2005-05-05 Habeman William E. Broadcast including content and location-identifying information for specific locations
US8380186B2 (en) * 2004-01-22 2013-02-19 Atc Technologies, Llc Satellite with different size service link antennas and radioterminal communication methods using same
US7418236B2 (en) 2004-04-20 2008-08-26 Mobile Satellite Ventures, Lp Extraterrestrial communications systems and methods including ancillary extraterrestrial components
US7453920B2 (en) 2004-03-09 2008-11-18 Atc Technologies, Llc Code synchronization in CDMA satellite wireless communications system using uplink channel detection
US7933552B2 (en) 2004-03-22 2011-04-26 Atc Technologies, Llc Multi-band satellite and/or ancillary terrestrial component radioterminal communications systems and methods with combining operation
US7606590B2 (en) * 2004-04-07 2009-10-20 Atc Technologies, Llc Satellite/hands-free interlock systems and/or companion devices for radioterminals and related methods
US7636566B2 (en) 2004-04-12 2009-12-22 Atc Technologies, Llc Systems and method with different utilization of satellite frequency bands by a space-based network and an ancillary terrestrial network
US20050239399A1 (en) 2004-04-21 2005-10-27 Karabinis Peter D Mobile terminals and set top boxes including multiple satellite band service links, and related systems and methods
US20050239436A1 (en) 2004-04-27 2005-10-27 Bell James C Systems and methods for providing signals to a device to cause a task to be performed in an emergency situation
US8265549B2 (en) * 2004-05-18 2012-09-11 Atc Technologies, Llc Satellite communications systems and methods using radiotelephone
US20050260984A1 (en) 2004-05-21 2005-11-24 Mobile Satellite Ventures, Lp Systems and methods for space-based use of terrestrial cellular frequency spectrum
US7706748B2 (en) 2004-06-25 2010-04-27 Atc Technologies, Llc Methods of ground based beamforming and on-board frequency translation and related systems
US7286834B2 (en) * 2004-07-13 2007-10-23 Sbc Knowledge Ventures, Lp System and method for location based policy management
CA2576521C (en) * 2004-08-11 2016-09-20 Atc Technologies, Llc Satellite-band spectrum utilization for reduced or minimum interference
US20060094420A1 (en) 2004-11-02 2006-05-04 Karabinis Peter D Multi frequency band/multi air interface/multi spectrum reuse cluster size/multi cell size satellite radioterminal communicaitons systems and methods
US7639981B2 (en) 2004-11-02 2009-12-29 Atc Technologies, Llc Apparatus and methods for power control in satellite communications systems with satellite-linked terrestrial stations
WO2006055648A2 (en) 2004-11-16 2006-05-26 Atc Technologies, Llc Satellite communications systems, components and methods for operating shared satellite gateways
US7747229B2 (en) 2004-11-19 2010-06-29 Atc Technologies, Llc Electronic antenna beam steering using ancillary receivers and related methods
US7454175B2 (en) * 2004-12-07 2008-11-18 Atc Technologies, Llc Broadband wireless communications systems and methods using multiple non-contiguous frequency bands/segments
US8594704B2 (en) 2004-12-16 2013-11-26 Atc Technologies, Llc Location-based broadcast messaging for radioterminal users
EP2254265A3 (en) 2005-01-05 2013-11-27 ATC Technologies, LLC Adaptive beam forming with multi-user detection and interference reduction in satellite communication systems and methods
US7596111B2 (en) 2005-01-27 2009-09-29 Atc Technologies, Llc Satellite/terrestrial wireless communications systems and methods using disparate channel separation codes
WO2006091605A2 (en) 2005-02-22 2006-08-31 Atc Technologies, Llc Reusing frequencies of a fixed and/or mobile communications system
US7636546B2 (en) 2005-02-22 2009-12-22 Atc Technologies, Llc Satellite communications systems and methods using diverse polarizations
US7738837B2 (en) 2005-02-22 2010-06-15 Atc Technologies, Llc Satellites using inter-satellite links to create indirect feeder link paths
US7756490B2 (en) * 2005-03-08 2010-07-13 Atc Technologies, Llc Methods, radioterminals, and ancillary terrestrial components for communicating using spectrum allocated to another satellite operator
US7587171B2 (en) 2005-03-09 2009-09-08 Atc Technologies, Llc Reducing interference in a wireless communications signal in the frequency domain
US7796986B2 (en) 2005-03-11 2010-09-14 Atc Technologies, Llc Modification of transmission values to compensate for interference in a satellite down-link communications
US7627285B2 (en) 2005-03-14 2009-12-01 Atc Technologies, Llc Satellite communications systems and methods with distributed and/or centralized architecture including ground-based beam forming
WO2006099501A1 (en) 2005-03-15 2006-09-21 Atc Technologies, Llc Methods and systems providing adaptive feeder links for ground based beam forming and related systems and satellites
WO2006099443A1 (en) 2005-03-15 2006-09-21 Atc Technologies, Llc Intra-system and/or inter-system reuse of feeder link frequencies including interference suppression systems and methods
US7453396B2 (en) * 2005-04-04 2008-11-18 Atc Technologies, Llc Radioterminals and associated operating methods that alternate transmission of wireless communications and processing of global positioning system signals
US7817967B2 (en) 2005-06-21 2010-10-19 Atc Technologies, Llc Communications systems including adaptive antenna systems and methods for inter-system and intra-system interference reduction
US7970345B2 (en) 2005-06-22 2011-06-28 Atc Technologies, Llc Systems and methods of waveform and/or information splitting for wireless transmission of information to one or more radioterminals over a plurality of transmission paths and/or system elements
US7907944B2 (en) 2005-07-05 2011-03-15 Atc Technologies, Llc Methods, apparatus and computer program products for joint decoding of access probes in a CDMA communications system
US8190114B2 (en) 2005-07-20 2012-05-29 Atc Technologies, Llc Frequency-dependent filtering for wireless communications transmitters
US7623867B2 (en) 2005-07-29 2009-11-24 Atc Technologies, Llc Satellite communications apparatus and methods using asymmetrical forward and return link frequency reuse
US7831202B2 (en) 2005-08-09 2010-11-09 Atc Technologies, Llc Satellite communications systems and methods using substantially co-located feeder link antennas
WO2007047370A2 (en) 2005-10-12 2007-04-26 Atc Technologies, Llc Systems, methods and computer program products for mobility management in hybrid satellite/terrestrial wireless communications systems
WO2007084682A1 (en) 2006-01-20 2007-07-26 Atc Technologies, Llc Systems and methods for forward link closed loop beamforming
US8705436B2 (en) * 2006-02-15 2014-04-22 Atc Technologies, Llc Adaptive spotbeam broadcasting, systems, methods and devices for high bandwidth content distribution over satellite
US7974176B2 (en) 2006-02-28 2011-07-05 Atc Technologies, Llc Systems, methods and transceivers for wireless communications over discontiguous spectrum segments
US7751823B2 (en) 2006-04-13 2010-07-06 Atc Technologies, Llc Systems and methods for controlling a level of interference to a wireless receiver responsive to an activity factor associated with a wireless transmitter
US8923850B2 (en) 2006-04-13 2014-12-30 Atc Technologies, Llc Systems and methods for controlling base station sectors to reduce potential interference with low elevation satellites
US9014619B2 (en) 2006-05-30 2015-04-21 Atc Technologies, Llc Methods and systems for satellite communications employing ground-based beam forming with spatially distributed hybrid matrix amplifiers
US8169955B2 (en) 2006-06-19 2012-05-01 Atc Technologies, Llc Systems and methods for orthogonal frequency division multiple access (OFDMA) communications over satellite links
US8526941B2 (en) 2006-06-29 2013-09-03 Atc Technologies, Llc Apparatus and methods for mobility management in hybrid terrestrial-satellite mobile communications systems
WO2008008904A1 (en) * 2006-07-12 2008-01-17 Mobile Satellite Ventures, Lp Miniaturized quadrifilar helix antenna
US20080025312A1 (en) * 2006-07-28 2008-01-31 Qualcomm Incorporated Zero-header compression for improved communications
CN101127747B (en) * 2006-08-14 2010-09-08 大唐移动通信设备有限公司 A method and system for frequency domain scheduling in time division duplex multiplexing system
US8452317B2 (en) * 2006-09-15 2013-05-28 Qualcomm Incorporated Methods and apparatus related to power control and/or interference management in a mixed wireless communications system supporting WAN signaling and peer to peer signaling
US8060082B2 (en) * 2006-11-14 2011-11-15 Globalstar, Inc. Ancillary terrestrial component services using multiple frequency bands
BRPI0809631B1 (en) * 2007-03-27 2020-03-17 Telcom Ventures Llc METHOD FOR COMMUNICATING BETWEEN A MOBILE DEVICE, AND A FIRST SATELLITE-BASED TRANSCEIVER AND A SECOND TRANSCEIVER BASED ON A BASE STATION, APPLIANCE TO COMMUNICATE WITH A MOBILE DEVICE
US9276664B2 (en) * 2007-04-30 2016-03-01 Dish Network Corporation Mobile interactive satellite services
US9458451B2 (en) * 2007-06-21 2016-10-04 Gen-Probe Incorporated Multi-channel optical measurement instrument
US8064824B2 (en) * 2007-07-03 2011-11-22 Atc Technologies, Llc Systems and methods for reducing power robbing impact of interference to a satellite
US9137806B2 (en) * 2007-09-21 2015-09-15 Qualcomm Incorporated Interference management employing fractional time reuse
US8699444B2 (en) * 2007-12-21 2014-04-15 Apple Inc. Broadcast system interference protection method and apparatus
US7978135B2 (en) 2008-02-15 2011-07-12 Atc Technologies, Llc Antenna beam forming systems/methods using unconstrained phase response

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6785551B1 (en) * 2000-04-07 2004-08-31 Ford Motor Company Method of providing dynamic regionally relevant data to a mobile environment
EP1253542A2 (en) * 2001-04-27 2002-10-30 Hewlett-Packard Company Delivery of location significant advertising
US20030143974A1 (en) * 2002-01-30 2003-07-31 Randy Navarro Emergency warning indication over a wireless network
GB2397196A (en) * 2003-01-08 2004-07-14 Nec Technologies Mobile communications device with location dependent mode of operation.

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
BEONGKU AN ET AL: "A cehular architecture for supporting geocast services", VEHICULAR TECHNOLOGY CONFERENCE, 2000. IEEE VTS FALL VTC 2000. 52ND SEPT. 24-28, 2000, PISCATAWAY, NJ, USA,IEEE, vol. 3, 24 September 2000 (2000-09-24), pages 1452 - 1459, XP010524732, ISBN: 0-7803-6507-0 *

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