Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.

Patents

  1. Advanced Patent Search
Publication numberUS20030013449 A1
Publication typeApplication
Application numberUS 09/903,982
Publication dateJan 16, 2003
Filing dateJul 11, 2001
Priority dateJul 11, 2001
Also published asUS7133685, US20050272443
Publication number09903982, 903982, US 2003/0013449 A1, US 2003/013449 A1, US 20030013449 A1, US 20030013449A1, US 2003013449 A1, US 2003013449A1, US-A1-20030013449, US-A1-2003013449, US2003/0013449A1, US2003/013449A1, US20030013449 A1, US20030013449A1, US2003013449 A1, US2003013449A1
InventorsDavid Hose, James Fitch
Original AssigneeHose David A., Fitch James A.
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Monitoring boundary crossings in a wireless network
US 20030013449 A1
Abstract
A process (400) according to one implementation of the present invention is initiated by receiving (402) a service zone definition for a boundary crossing. The boundary crossings application further receives (404) a monitoring request. For example, a vehicle rental company may enter the MIN/ESN of all mobile units associated with vehicles that are to be monitored, the timeframes during which the vehicles are to be monitored and the specific zones or boundaries with respect to which vehicle movement is to be monitored. Movements of the mobile unit or units of interest can then be monitored by receiving and storing (406) current location information, retrieving (408) prior location information for the mobile unit or units, and using (410) the current and prior location information to determine whether a service zone boundary has been crossed during the intervening time interval. Once a determination is made (412) as to whether a boundary crossing has occurred, the boundary crossing application may continue monitoring mobile unit location/movement and/or may generate (414) service information according to application parameters. The service information is then transmitted (416) according to application parameters. Such application parameters may specify the recipient, content and format of the service information.
Images(5)
Previous page
Next page
Claims(19)
1. A method for use in providing services based on the locations of mobile units in a wireless communications network, said wireless network including a switch structure for use in selectively routing communications between network users and a processing platform associated with the switch structure, said method comprising the steps of:
providing a location based services application running, at least in part, on the processing platform associated with the switch structure;
defining at least one geographic reference for said location based services application;
storing an identifier for a mobile unit of interest to a user;
monitoring a location of said mobile unit, using said location based services application and said identifier of said mobile unit, to identify an attainment of a predetermined relationship of said mobile unit relative to said geographic reference, said attainment being defined by a change of status with respect to said predetermined relationship; and
transmitting service information regarding said mobile unit in response to said attainment of said predetermined relationship of said mobile unit relative to said geographic reference.
2. A method as set forth in claim 1, wherein said step of defining said geographic reference comprises receiving subscriber specific information from said user regarding said geographic reference and said step of storing comprises indexing information regarding said geographical reference to said identifier.
3. A method as set forth in claim 1, wherein said step of defining comprises identifying a geographical area for which said user desires to receive notification upon one of:
a) entry of said mobile unit into said identified geographical area; and
b) exit of said mobile unit from said identified geographical area; and said step of transmitting comprises providing notification to said user of said boundary crossing event.
4. A method as set forth in claim 1, wherein said step of defining comprises receiving zone location information regarding a service zone referenced to a first topology system and expressing said zone location information in terms of a second topology system of said location based services application.
5. A method as set forth in claim 4, wherein said first topology system comprises a street grid.
6. A method as set forth in claim 4, wherein said second topology system comprises one of a geographical coordinate system and a system of wireless network subdivision identifiers.
7. A method as set forth in claim 1, wherein said step of providing a location based services application comprises providing an application for allowing a person of authority to monitor the movements of one of a person or a vehicle associated with said mobile unit.
8. A method as set forth in claim 1, wherein said step of providing a location based services application comprises providing an application for setting a billing parameter for use of said wireless network by said mobile unit.
9. A method as set forth in claim 1, wherein said step of monitoring comprises storing first location information regarding a first location of said mobile unit at a first time, obtaining second location information regarding a second location of said mobile unit at a second time and comparing said first location information to said second location information to identify said attainment of said predetermined relationship.
10. A method as set forth in claim 9, wherein said first location information comprises a first zone identifier for a particular service zone and said second location information comprises a second zone identifier for a particular service zone, and said step of comparing comprises determining whether said first zone identifier is the same as said second zone identifier.
11. A method as set forth in claim 9, wherein said step of monitoring further comprises defining a geometrical element interconnecting a first location of said first location information and a second location of said second location information and determining whether there is an intersection between said geometrical element and a boundary of a service zone.
12. A method as set forth in claim 1, wherein said unit is a telephone and said step of storing an identifier comprises storing an MIN/ESN.
13. A method as set forth in claim 1, wherein said step of transmitting service information comprises transmitting said service information to said mobile unit.
14. A method as set forth in claim 1, wherein said step of transmitting service information comprises transmitting said service information to a data network node associated with said subscriber, said data network node being separate from said mobile unit.
15. A method as set forth in claim 1, wherein said step of transmitting service information comprises transmitting said service information to a separate application that is registered with said location based services application to receive boundary crossing information regarding said mobile unit.
16. A method as set forth in claim 1, wherein said step of transmitting service information comprises transmitting a message to said user providing notice of a boundary crossing event.
17. A method as set forth in claim 16, wherein said message comprises one of a voice, text or graphical message.
18. A method as set forth in claim 1, wherein said step of transmitting service information comprises transmitting one of local service information and local emergency condition information to said mobile unit.
19. A method for use in providing services, based on the locations of mobile units in a wireless network, comprising the steps of:
establishing a location based services system, including a processing platform and data storage associated with the processing platform;
said location based services system being interconnected to a network location finding system for receiving network location information therefrom regarding the location of the mobile units within the wireless network, said network location finding system being operative for determining said network location information regarding said mobile units based on locations of the mobile units and known locations of network structure in said wireless network;
said location based services system further being interconnected to a system user via a communication network including a switch structure for routing communications based on an address whereby user information can be transmitted from said location based services system to said user by associating said user information with a user address;
said location based services system further being associated with a data input port for receiving information for storage in said data storage and for use by said location based services system;
first receiving, via said data input port, service zone information identifying a geographic service zone including at least one service zone boundary;
first storing said service zone information in said data storage of said location based service system;
second receiving, via said data input port, an identifier identifying a mobile unit of interest to said system user;
second storing said identifier in said data storage of said location based service system;
third receiving, from said network location finding system, said network location information including mobile unit location information regarding said mobile unit of interest;
third storing said mobile unit location information in said data storage of said location based service system;
first operating said location based service system to 1) monitor locations of said mobile unit of interest over a time period, 2) make a comparison based on one or more of said monitored locations of mobile unit location to said service zone boundary, and 3) based on said comparison, identify a crossing of said service zone boundary by said mobile unit of interest; and
second operating said location based service system to 1) generate service information in response to said identified crossing of said service zone boundary, 2) establish a user communication including said service information and information identifying said user address, and 3) transmitting said user communication to said system user;
wherein said system user receives service information triggered by said crossing of said service zone boundary.
Description
    FIELD OF THE INVENTION
  • [0001]
    The present invention relates generally to providing location-based services in a wireless network and, in particular, to providing service information based on the crossing of a service zone boundary by a mobile unit in a wireless network.
  • BACKGROUND OF THE INVENTION
  • [0002]
    A number of different types of location based service applications have been developed or proposed for wireless networks, i.e., communications networks involving at least one wireless interface between communicating devices. Generally, such applications determine or otherwise obtain location information regarding the location of a mobile unit under consideration, e.g., a wireless telephone, PDA, wireless data terminal or the like—and provide service information based on the mobile unit location. Examples of location based service applications include E911, local service information and location-based billing applications. In E911 applications, emergency calls are routed to a selected dispatcher based on the location of origin of an emergency call. Location based service applications provide information regarding local services such as hotels or restaurants based on a request entered via a mobile unit. In location based billing applications, a rate for a call placed or received by a wireless telephone is dependent on the location of the phone, e.g., whether the phone is inside or outside of a “home zone” for the subscriber proximate to the subscriber's residence, business or other defined location. Various other applications have been proposed or implemented.
  • [0003]
    Location based service applications generally involve comparing a current (or recent) location to predefined service zone definitions to make either a binary determination (e.g., that the mobile unit is either inside or outside of a zone under consideration) or a matching determination (e.g., that the mobile unit location matches or overlaps one or more stored zone definitions). In either case, at one or more relevant processing steps, mobile unit location information corresponding to a particular time is compared to service location information corresponding to one or more service zones, service provided locations or other stored location information. Thus, in E911 applications the mobile unit location at the time of placing an E911 call may be compared to the dispatcher coverage zones of an emergency response network. In local service information applications, the location of a mobile unit at the time of submitting, for example, a local hotel information request, may be compared to a database of hotel location information. The location of a mobile unit during a call may be used by a location based billing application to establish billing parameters for the call.
  • [0004]
    In addition, location based service applications generally provide service information in response to an input by a subscriber or other application user invoking the application. In the case of local service information applications, the input is generally an explicit service request entered via the mobile unit. In E911 or location based billing applications, the location based service application may be invoked invisibly, from the perspective of the mobile unit, upon making a call. In other cases, the input invoking the application to provide service information based on the location of the mobile unit, is received from an application separate or remote from the mobile unit requesting location based service information, e.g., identification of current mobile unit location. In such applications, the service information is nonetheless provided in response to an input requesting location-based services. That is, the trigger event generally is, from the perspective of the service application, a service request.
  • SUMMARY OF THE INVENTION
  • [0005]
    The present inventors have recognized that certain location-based service application functionality can be supported and enhanced by generating service information based on the location or movement of a mobile unit rather than in response to a service request from a subscriber, separate application or other system user or based on other criterion such as periodic reporting. In this manner, events associated with the movement of a mobile unit can be identified as may be desired for a variety of applications. Moreover, movement of an identified mobile unit relative to a geographic reference such as a service zone boundary can be monitored with minimal user inputs or communications between a location managing system and an associated wireless location based service application.
  • [0006]
    According to one aspect of the present invention, a method is provided for generating service information based on a location input regarding a mobile unit under consideration. The method includes the steps of: providing a location based services application running, at least in part, on a processing platform of a wireless network; receiving an input identifying a location parameter to be monitored for a mobile unit; storing the location parameter; receiving location information regarding the current location of the mobile unit; in response to the received location information, comparing the location information to the stored location parameter; and, based on the comparison, selectively generating service information regarding the mobile unit. Generation of service information is thereby triggered by the received location information and the associated comparison to a stored location parameter. The service information can be transmitted to the monitored mobile unit, another mobile unit, a network node remote from the monitor mobile unit and/or a further application.
  • [0007]
    According to another aspect of the present invention, a mobile unit is monitored to identify attainment of a predetermined relationship relative to a geographic reference such as the crossing of service zone boundary. The associated method includes the steps of: providing a location based services application running, at least in part, on a processing platform of a wireless network; defining at least one geographic reference for the application, where the reference can be used to identify attainment of a predetermined positional relationship by the mobile unit; storing an identifier for the mobile unit or units of interest to a subscriber; monitoring a location of the mobile unit, using the application and the identifier of the mobile unit, to identify attainment of the predetermined positional relationship; and transmitting service information regarding the mobile unit in response to the identified attainment of the predetermined relationship. The invention has particular advantages for providing service information in response to a flux of the mobile unit relative to the geographic reference such as traversing a service zone boundary. Thus, service information may be generated based on identification of a boundary crossing or other location related change in status rather than in direct response to a service request from a system user or based on a periodic or occasional polling process.
  • [0008]
    The above noted functionality can be used to support and enhance a variety of applications. In certain applications, it is desired to provide notification when a mobile unit crosses a defined boundary. For example, a car rental company, or other fleet manager, may wish to be notified if a vehicle enters a proscribed area (e.g., crosses into a prohibited country) or exits a permitted area. Similarly, a parent, government official or other person in a position of authority may wish to monitor the movement of a child or other person or charge to insure that such charge has not entered a prohibited area or left a permitted area or area of confinement. In other applications, mobile unit location may be monitored relative to service zone boundaries to re-rate calls or to provide emergency or other service information to a subscriber upon entering a given service zone. In still other applications, a system user may wish to be notified when a mobile unit comes within a defined radius of a defined location, moves West, East, etc. of a defined location or attains a defined location in relation to the current location of another mobile unit. In another type of application, the boundary or other geographic reference may be defined at, or close to, the time of the location comparison rather than being predefined a substantial time prior to the comparison. For example, an application may notify a subject mobile unit when it comes within a certain distance of one or more other identified mobile units or vice versa. Such an application may be useful for helping friends or family members to rendezvous.
  • [0009]
    The present invention advantageously allows for monitoring position and movement of mobile units utilizing existing network structure. In this regard, location information for a mobile unit of interest can be obtained from a network assisted location finding system where location is determined based at least in part on the position of a mobile unit relative to a known location of a network structure, e.g., cell location, cell sector, AOA, TDOA, a GPS assist receiver system, a network overlay location transceiver, etc. The use of such network based location finding technologies allows applications in accordance with the present invention to service a variety of mobile units systems including conventional wireless phones and other devices without dedicated location equipment such as GPS transceivers. Thus, such applications can support a greater number of subscribers without specialized handsets or other subscriber equipment dedicated to location determination. Moreover, systems in accordance with the present invention can be implemented at least in part on network structure such as processing platforms associated with a network switch. For example, a location management system maybe associated with such a platform to receive location information, and provide notification information to a wireless location application when a mobile unit under consideration attains a predetermined relationship relative to a stored geographic reference. By utilizing such network structure, rather than implementing such functionality on an on-board computer or other subscriber equipment, the associated application can have convenient access to a centralized database which may be conveniently updated to provide more current information. Moreover, implementing such applications in connection with existing structure allows network providers, carriers and the like to make enhanced services available to existing subscribers and to thereby distinguish themselves from competing service providers.
  • BRIEF DESCRIPTION OF THE DRAWINGS
  • [0010]
    For a more complete understanding of the present invention and further advantages thereof, reference is now made to the following detailed description, taken in conjunction with the drawings, in which:
  • [0011]
    [0011]FIG. 1 illustrates the representation of a service zone boundary in accordance with the present invention using a cell-sector based location finding technology;
  • [0012]
    [0012]FIG. 2 illustrates activity that may be deemed a service zone boundary crossing in accordance with the present invention;
  • [0013]
    [0013]FIG. 3 shows a wireless network implementing the system of the present invention; and
  • [0014]
    [0014]FIG. 4 is a flow chart illustrating a preferred implementation of the present invention.
  • DETAILED DESCRIPTION
  • [0015]
    The present invention is directed to a method and system for providing service information in a wireless network in response to and based on a comparison of mobile unit location information to a stored geographic reference information. The following description includes an initial discussion of exemplary applications that are supported by the present invention, followed by a description of the preferred network for implementation of the invention and then a description of preferred processes for implementing the invention.
  • [0016]
    A. Applications
  • [0017]
    The present invention supports a number of applications where service information is generated in response to detection of a mobile unit attaining a particular position in relation to a geographic reference, e.g., detection of a service zone boundary crossing. A number of examples of such applications are described below. It will be appreciated that many more examples are possible. Nonetheless, the following examples illustrate that such applications can vary, for example, with respect to the types of service information that are generated as well as how and to whom or what the service is reported.
  • [0018]
    One type of application where it may be desired to monitor boundary crossings relates to fleet management such as rental vehicle tracking. Rental vehicles may be tracked to insure that the tracked rental vehicle is being used in accordance with the rental contract, e.g., that the vehicle is not being taken across certain national borders. Boundary crossings may be proscribed due to insurance limitations, political/social considerations or other reasons. The rental company may therefore desire to receive notification when boundary crossings occur. It will be appreciated that the rental company would not necessarily require continual updates of vehicle locations (though some companies may choose to obtain such updates) but, most importantly for present purposes, will desire notification triggered by a boundary crossing event.
  • [0019]
    Such notification can be conveniently provided via a data network such as the Internet. In this manner, an official of the rental company may receive a graphical or text notification identifying the monitored vehicle and the boundary crossing event, e.g., “ID #nnn has crossed into/out of the United States.” In response to such notification, the rental company may contact the lessee (e.g., by car phone) remotely disable the rental vehicle, assess a contractual penalty or take other remedial measures.
  • [0020]
    As will be discussed in more detail below, such a boundary crossing event can be identified using a conventional wireless telephone or other mobile unit carried by the rental vehicle and, preferably, configured to remain powered on when the vehicle is in use. Such a monitoring application can take advantage of existing wireless network platforms and location finding equipment to provide monitoring with minimal, if any, equipment on board the rental vehicle dedicated to position monitoring, thereby reducing costs and facilitating rapid deployment. As described below, a wireless network platform remotely or locally associated with a network switch can be connected to one or more location finding equipment systems for receiving location information regarding the monitored vehicle or its on-board mobile unit and can be further connected to a data network for providing reports to the rental company's data terminal.
  • [0021]
    Another type of application where it may be desired to monitor boundary crossings is location based billing applications. In these applications, the rate applied for calls placed or received using a wireless telephone depends on the location of the phone. For example, wireless carriers may wish to encourage subscribers to use their wireless phones as their only phones by providing call rating competitive with land line phones for calls placed in or near the subscriber's home, office or other defined location, but providing a different rating for calls placed or received outside such “home zones.” The relevant rating information may be provided to a billing system of the carrier or other service provider by populating an associated field of a Call Detail Record (CDR) with a billing value.
  • [0022]
    In connection with such applications, it may be desired to monitor boundary crossings for a number of reasons. For example, identifying crossings into or out of a home zone may be used to re-rate an ongoing call or otherwise re-set a billing parameter. Also, it may be useful to provide an indication to the subscriber regarding location relative to a home zone, e.g., via a display element on the handset, so that the subscriber can know in advance of a call what rates may apply. Thus, boundary crossings may be monitored in order to transmit messages to the mobile unit causing the display element to toggle between “home zone” and “outside home zone” displays. In the case of call re-rating, a single call may be divided into parts billed at different rates, e.g., by generating multiple CDRs, or a single rate may be selected based on a boundary crossing. In either case, the service information provided by the application may simply be a rating value and the recipient may be a billing application.
  • [0023]
    A final example of applications that may make use of boundary crossing information is a local service or friend notification application. Such an application may provide emergency information—e.g., regarding local traffic, weather, or other emergency conditions—or other service information—e.g., information about local hotels, restaurants or other services—to all or subscribing system users upon entry into a service area. For example, in the case of severe weather warnings, a traveler may be notified by phone or display upon entering the affected area (such as on crossing a county line). For a traffic jam, warnings and alternative route or other information may be provided to commuters coming within a certain area encompassing the problem location. Similarly, local service providers may transmit pricing, event or other service information to willing, approaching travelers. In the case of “friend” notification, a subscribing system user and/or an identified “friend” may be notified when the user comes within a certain proximity of the mobile unit of the friend or the friend comes within a certain proximity of the user. In such cases, the “boundary” may be defined and redefined “on the fly”.
  • [0024]
    In such cases, service information may be transmitted to the monitored mobile unit, an associated data terminal or other device proximate to the monitored unit. The information may be provided in audio, text, graphical or other form depending, for example, on the limitations of the user equipment and the type of information required. Transmission of the service information may be triggered by crossing a political or government boundary, crossing within a radius of a location of interest or otherwise crossing a service zone boundary of any shape.
  • [0025]
    As the foregoing examples illustrate, the type of service information, form of service information transmission, intended recipient and other details can vary from application to application or even within a particular application in accordance with the present invention. This will be further understood upon consideration of a preferred network environment of the present invention as described below.
  • [0026]
    B. Network Environment
  • [0027]
    The present invention can be implemented in a wireless communications network such as a wireless telephone network. Such an implementation has a number of advantages. First, in many cases, wireless networks have access to location information regarding mobile units located within the wireless network or certain areas thereof from existing location finding equipment. In many cases, such location finding equipment is capable of providing location information for any mobile unit within the coverage area. Moreover, certain location finding technologies can provide location information without requiring any specialized subscriber equipment dedicated to location finding. In addition, the present invention can make use of existing network structure such as processing platforms and switching equipment to access location information, perform location calculations as desired and route service information to system users. In this manner, a system for providing service information in accordance with the present invention can be readily implemented. Moreover, such services can be marketed to wireless network subscribers, and service providers who desire access to such subscribers, thereby facilitating system deployment and enabling wireless carries to provide a value added service that may distinguish the carrier from competitors.
  • [0028]
    Various types of location finding systems can be used in accordance with the present invention. Preferably, the location finding system is a network assisted technology such as AOA, TDOA, network assisted GPS, cell sector or similar network based system thereby making use of existing technology associated with the wireless network. In one embodiment, the location finding system employed is a fully network based system such as a cell sector system that provides location information regarding a mobile unit of interest without requiring any mobile unit based equipment dedicated to location determination. In addition to cell sector technology, such systems included AOA, TDOA and the like.
  • [0029]
    [0029]FIG. 1 illustrates a wireless network 100 utilizing a cell sector technology to represent a service boundary 108. The network 100 includes a number of cell sites 102 each having an associated coverage area 104 within which cell site equipment can communicate with mobile units via RF signals. As shown, the coverage areas 104 of each cell may be irregular in shape due to, for example, local geography and other local signal transmission characteristics. Moreover, the coverage areas 104 may overlap as shown to insure relatively complete coverage. Coverage areas may also overlap in order to provide better service in high usage areas of the network.
  • [0030]
    A cell site 102 may include a number of directional antennas that effectively divide the coverage 104 into a number of sectors 106. In the illustrated embodiments, individual cells are divided into three sectors 106, each of which covers approximately 120 degrees of the coverage area 104 surrounding the cell site 102. Thus, each sector 106 encompasses a generally wedge-shaped area.
  • [0031]
    A location finding system utilizing cell sector technology provides a somewhat coarse indication of mobile unit location. In particular, the location of a mobile unit is approximately known by determining which cell sector antenna is handling communications with the mobile unit. Based on this information, the mobile unit is deemed to be within the associated generally wedge-shaped area. For processing purposes, the associated location may be expressed as a two-dimensional coordinate location, e.g., representing a center point of the generally wedge-shaped area, and an uncertainty area, e.g., defined by an uncertainty radius. Such an uncertainty radius may be selected to reflect the uncertainty inherent in the cell sector technology. It will be appreciated that alternative location finding technologies may provide greater accuracy. For example, AOA, and TDOA methodologies are capable of providing greater accuracy than cell sector technologies. Moreover, in areas of a wireless network where more than one location finding technology is available, location information from multiple location finding technologies, or the raw location information from which location determinations are made using one or more of the technologies, may be combined to provide even greater accuracy.
  • [0032]
    In FIG. 1, the dashed line 108 represents a service zone boundary. For present purposes, the area to the right of the service zone boundary 108 may be taken to define a service zone such as a zone within which authorities wish to disseminate emergency information. In the illustrated network 100 which utilizes a cell sector based location finding technology, the boundary 108 and associated service zone are approximated by a set of cell sectors. These cell sectors are the shaded sectors 106 in FIG. 1. It will thus be observed that the shaded cell sectors 106 generally coincide with the service zone, although the boundary 108 is only followed imperfectly. In the illustrated example, the service zone definition depicted by the shaded cell sectors is over inclusive in that any cell sector that is at least partially within the service zone is included in the service zone definition. As a practical matter, this means that any mobile unit that may or may not be within the surface zone due to the uncertainty inherit in the cell sector technology may be deemed to have crossed the boundary 108 and may therefore receive the emergency information.
  • [0033]
    More specifically, the system of the present invention can provide service information based on a boundary crossing determination as opposed to, for example, a binary determination that a mobile unit is either inside or outside a service zone at a particular instant in time. This is illustrated in FIG. 2. In FIG. 2, the location of a mobile unit is indicated by a point, e.g., defined by two-dimensional coordinates, and an uncertainty area 102. In the illustrated implementation, the uncertain area is taken to be defined by an uncertainty radius surrounding the point 200, but it should be appreciated that uncertainty areas of other shapes may be utilized. In FIG. 2, a current location of a mobile unit is shown in solid lines and a prior location of the mobile unit is shown in dashed lines. The presumed movement of the mobile unit between the two times is therefore indicated by arrow 206.
  • [0034]
    [0034]FIG. 2 illustrates activity that may be characterized as a boundary crossing. In particular, reference numeral 204 indicates a service zone boundary. In this case, the boundary 204 defines a service zone of complex shape as may be desired in a particular application. At the first time, the location of the mobile unit as indicated by the point 200 and the uncertainty area 202 is fully located on a first side of the boundary 204. At the second time, the location of the mobile unit as indicated by the point 200 and the uncertainty area 202 is undetermined with respect to the boundary 204. That is, a portion of the uncertainty area 202 at the second time overlaps a portion of the service zone. Accordingly, the mobile unit may be within the service zone. This change in status from the first time to the second time (i.e., from “outside” the service zone to “potentially inside”) may be deemed a boundary crossing event for the purposes of a particular application. It will be appreciated that a boundary crossing event may similarly be indicated by a change in status from clearly outside the service zone to clearly inside the service zone, i.e. where the entire uncertainty area at the second time is within the service zone.
  • [0035]
    The example of FIG. 2 suggests one mathematical analysis for identifying a boundary crossing event. Specifically, a change in status between the first time and the second time is determined relative to an overlapping area analysis. At the first time, the area of overlap between the uncertainty area 202 and the service zone is a mathematical nullity. At the second time, there is an intersection between a set of area units comprising the uncertainty area 202 and the set of area units comprising the service zone. For example, the area units may be elements of a Quadtree data structure utilized to represent the area of a wireless network such as described in co-pending U.S. patent application Ser. No. 09/788,036 which is incorporated herein by reference in its entirety.
  • [0036]
    It will be appreciated that a variety of other mathematical models may be utilized in accordance with the present invention to identify a boundary crossing relative to first and second location information. For example, a first mathematical representation may be defined to represent a line segment or other geometric element interconnecting the first point 200 (associated with the first time) and the second point 200 (associated with the second time) or the first area 202 and the second area 202 and a second mathematical representation may be utilized to define the boundary 204. These mathematical representations may then be compared e.g., by simultaneously solving equations, to identify any intersection. Alternatively, a ray may be defined emanating from the point 200 at the first time in a selected direction. Another ray may be defined emanating from the point 200 at the second time in the same or a different direction. At each time, the number of instances that the ray crosses the boundary 204 may be determined to thereby provide an indication that the point under consideration is inside or outside of the service area. Any change in status in this regard between the first time and the second time would be indicative of a boundary crossing. Many other solutions are possible as will be appreciated as one skilled in the art.
  • [0037]
    For many applications, identifying a boundary crossing may provide advantages relative to generating service information based on a binary determination that a mobile unit is located within or outside a service area at an instant in time. For example, it may be desirable to provide emergency information or local service information only upon entering a service zone rather than continuously while a mobile unit is located within a service zone. This objective can be achieved by triggering transmission of the service information based on a boundary crossing rather than based on a determination that the mobile unit is inside of the service zone. Moreover, in other contexts, transmissions between a network platform and a mobile unit may be reduced thereby conserving bandwidth. For example, as noted above, in a location based billing application, it may be desirable to provide an indication on a display of the mobile unit indicating that the mobile unit is either inside or outside of a home zone. Such information may be transmitted from a network platform to a mobile unit. In order to minimize such transmissions, updated information may be transferred to the mobile unit only upon a change in status with regard to the home zone boundaries.
  • [0038]
    [0038]FIG. 3 illustrates a wireless network 300 implementing the present invention. In the network 300, a mobile unit 302 communicates with cell site equipment 304 via an RF interface. In the illustrated example, the mobile unit 302 is shown as being a wireless telephone. It will be appreciated, however, that any suitable mobile unit can be utilized including, for example, personal digital assistants, data terminals having a wireless modem, etc. The cell site equipment 304 may be, for example, a cell sector antenna or the like. In the illustrated network 300, the cell site equipment 304 is interconnected to a switch 306. Although only one piece of cell site equipment 304 is illustrated, it will be appreciated that switch 306 may service multiple cells. The switch 306 may be, for example, a mobile switching center (MSC) or any other structure for routing communications between a calling unit and a called unit. As will be discussed in more detail below, the switch 306 may also be operative for generating billing records such as Call Detail Records for transmission to a billing application of a wireless carrier or other service provider.
  • [0039]
    [0039]FIG. 3 also shows a platform 308 associated with the switch 306. The platform 308 may be, for example, a computer platform for executing a variety wireless network applications. The platform 308 may be physically located proximate to the switch 306 or may be remotely located and interconnected to the switch 306 by a local area network, wide area network or other communications pathway. The illustrated platform 308 includes a microprocessor 310 for running a boundary crossings application in accordance with the present invention. As will be understood from the description below, a boundary crossings application in accordance with the present invention may be a fully self-contained application for receiving location information, identifying a boundary crossing and providing service information in response to the boundary crossing in the form desired by the end user. Alternatively, a boundary crossings application in accordance with the present invention may function as a module to identify a boundary crossing and provide information regarding the boundary crossing for further processing by another application. In order to identify boundary crossings, the boundary crossing application running on processor 310 can access service zone information and location information. The service zone information provides a definition of service zones for use by the application. These definitions may be provided in any suitable form. For example, a service zone may be defined as a set of cell identifiers or cell sector identifiers that represent the service zone. Alternatively, the service zone information may be stored as a set of geographical coordinates or geographical boundaries that define the service zone. For cell sector implementations, such geographical information may be converted into current network topology, e.g., cell sector identifiers, at the time of a boundary crossing determination. It will be appreciated that other conventions may be utilized for storing a representation of a service zone area. In addition, it will be appreciated that a GIS system may be utilized for inputting and formatting the service zone information. For example, a service provider or other person defining a service zone may wish to input service zone boundaries relative to an address, streets or other topological information. A GIS application, such as the MAPS application marketed by SIGNALSOFT Corporation of Boulder, Colo., may be utilized to receive such inputs and convert the associated service zone definitions into geographical information formatted for convenient handling by the boundary crossing application. Thus, service zone definitions may be converted from one topological system, e.g., addresses or street boundaries, to another topological system, e.g., geographical coordinates or cell/cell sector identifiers.
  • [0040]
    Location information regarding the locations of mobile units may also be stored for access by the boundary crossings application. Depending, for example, on the nature of the location finding technology employed, the nature of the received location information and the route by which the information is obtained may vary. For example, in the case of cell sector location information, a cell sector identifier may be extracted from communications between the mobile unit 302 and the switch 306. In the case of handset-based location finding equipment such as GPS information, location coordinates may be encoded into communications transmitted from the unit 302 to the cell site equipment 304. In other cases, raw location information may be preprocessed by a location management program running on the platform 308. In any case, in accordance with the present invention, location information may be stored in location cache 314 so as to enable later use in a boundary crossing analysis such as comparison of mobile unit location information for a first time and a second time.
  • [0041]
    In the illustrated embodiment, the platform 308 is illustrated as housing a service zone database 312 and a location cache 314. Such a service zone database 312 may include service zone definitions for one or more applications. The location cache 314 may include location information for mobile units at various times indexed, for example, to a mobile unit identifier such as a MIN/ESN. Although the database 312 and cache 314 are thus illustrated as distinct elements, it will be appreciated that the database 312 and cache 314 may utilize shared or non-dedicated memory resources. Moreover, the database 312 and cache 314 need not be located on the platform 308 or on the same machine as one another, but rather, may reside at any location where the stored information can be accessed by the boundary crossing application.
  • [0042]
    As noted above, depending on the specific application and other factors, the resulting service information can be transmitted to different recipients via different pathways. For example, in the case of the above noted rental vehicle tracking application, the resulting service information is provided to a data terminal at a rental company remote from the monitored mobile unit. To support such applications, service information can be transmitted from the illustrated platform 308 to a data network node 320 via a data network 318 such as the Internet. In other applications, such as re-rating for location based billing applications, the recipient of the service information is another application such as a billing application that is registered with the boundary crossings application to receive service information, e.g., related to boundary crossings. In the case of the location based billing application, the service information may be a billing value of a Call Detail Record (CDR). In such a case, the service information may be transmitted to application 322 by way of the switch 306. In other cases, such as the above noted emergency service or local service applications, it is desirable to transmit the service information to the monitored mobile unit 302. In such cases, the service information may be transmitted to the unit 302 via the switch 306 and cell site equipment 304.
  • [0043]
    The service information may be presented in various forms. For example, service information may be transmitted to the mobile unit 302 via a short messaging system for providing an audio message that can be played on the unit 302. Alternatively, a text message may be displayed on a LED display or other display of the mobile unit 302. As previous noted, an output may be provided to an application 322 such as a billing application by populating a field of the CDR. In other applications, an audio, text and/or full graphics presentation (e.g., a graphical map showing mobile unit location) may be provided at a data network node 320. It will thus be appreciated that the boundary crossings application may utilize appropriate hardware, firmware and/or software for providing the service information in the appropriate format and in accordance with appropriate protocols. Thus, the information may be packetized for transmission across the Internet in accordance with IP protocols. Data may also be transmitted to the mobile unit 302 utilizing proxies, microbrowser and other elements for executing wireless data communications protocol. Similarly, in the case of a CDR output, the CDR may be populated in accordance with telecommunications network protocols.
  • [0044]
    C. Process Implementation
  • [0045]
    [0045]FIG. 4 is a flowchart illustrating a process 400 for implementing a boundary crossings application in accordance with the present invention. The process 400 is initiated by receiving (402) a service zone definition for the application. As noted above, the nature of the service zones can vary from application to application. The service zones or associated boundaries may include political or government boundaries, street or other topological data, geographical coordinates and associated cell sector identifiers or other zone delineators or other geographical information. Such information may be input using GIS application or by other means.
  • [0046]
    The boundary crossings application further receives (404) a monitoring request. For example, a vehicle rental company may enter the MIN/ESN of all vehicles that are to be monitored, the timeframes during which the vehicles are to be monitored and the specific zones or boundaries with respect to which vehicle movement is to be monitored. Similar types of information may be entered by parents or government officials wishing to monitor movements of individuals or by wireless carries or network subscribers relating to bill zones. The boundary crossings application can then monitor movements of the mobile unit or units of interest by receiving and storing (406) current location information, retrieving (408) prior location information for the mobile unit or units, and using (410) the current and prior location information to determine whether a service zone boundary has been crossed during the intervening time interval. This monitoring can continue throughout a time period as specified by a network user. With regard to the process for monitoring location, the system user may specify a frequency for monitoring if desired. Thus, for example, a rental car company may request position updates every ten minutes or at some other interval. At each such interval, the boundary crossings application may access the most recent information available in the location cache or may invoke the location finding equipment to obtain current information. It will be appreciated that different frequencies may be useful for different applications. Alternatively, the boundary crossings application can be programmed to make a boundary crossing determination each time new location information is received for a mobile unit of interest. In this regard, it will be appreciated that such location information may be obtained as a result of a periodic polling process in connection with normal network administration.
  • [0047]
    The process of using the current and prior location information to identify boundary crossings may utilize the two most recent instances of location information for a particular mobile unit, or may utilize location information for other times. Moreover, in certain cases, such as in the case of GPS information, location information for a particular time may be coupled with travel direction and speed information. Such travel direction and speed information may also be obtained by processing location information for a particular mobile unit at two or more times. In such cases, tracking information may be used to identify or predict a boundary crossing without relying on a change of status as between first and second location information and first and second times relative to a zone boundary. Once a determination is made (412) as to whether a boundary crossing has occurred, the boundary crossing application may continue monitoring mobile unit location/movement and/or may generate (414) service information according to application parameters. In the latter regard, the boundary crossings application may be programmed to output a billing parameter, retrieve and transmit prerecorded service information, or otherwise output service information depending on the specifics of the program. The service information is then transmitted (416) according to application parameters. Such application parameters may specify the recipient, content and format of the service information as discussed above.
  • [0048]
    While various embodiments of the present invention have been described in detail, it is apparent that further modifications and adaptations of the invention will occur to those skilled in the art. However, it is to be expressly understood that such modifications and adaptations are within the spirit and scope of the present invention.
Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US4700374 *Jun 21, 1985Oct 13, 1987Alcatel N.V.Mobile telephone location system
US4876738 *Sep 16, 1987Oct 24, 1989U.S. Philips CorporationMobile radio transmission system
US5030117 *Jan 24, 1990Jul 9, 1991Delorme David MDigital global map generating system
US5043736 *Jul 27, 1990Aug 27, 1991Cae-Link CorporationCellular position locating system
US5208756 *Jan 28, 1991May 4, 1993Song Han LVehicle locating and navigating system
US5223844 *Apr 17, 1992Jun 29, 1993Auto-Trac, Inc.Vehicle tracking and security system
US5235633 *Dec 26, 1991Aug 10, 1993Everett DennisonCellular telephone system that uses position of a mobile unit to make call management decisions
US5272638 *May 31, 1991Dec 21, 1993Texas Instruments IncorporatedSystems and methods for planning the scheduling travel routes
US5317323 *Mar 5, 1993May 31, 1994E-Systems, Inc.Passive high accuracy geolocation system and method
US5327144 *May 7, 1993Jul 5, 1994Associated Rt, Inc.Cellular telephone location system
US5388147 *Aug 30, 1993Feb 7, 1995At&T Corp.Cellular telecommunication switching system for providing public emergency call location information
US5461390 *May 27, 1994Oct 24, 1995At&T Ipm Corp.Locator device useful for house arrest and stalker detection
US5479482 *Sep 26, 1994Dec 26, 1995At&T Corp.Cellular terminal for providing public emergency call location information
US5515419 *Aug 2, 1994May 7, 1996TrackmobileTracking system and method for tracking a movable object carrying a cellular phone unit, and integrated personal protection system incorporating the tracking system
US5537460 *Jul 8, 1994Jul 16, 1996Holliday, Jr.; Robert O.Method and apparatus for determining the precise location of a modified cellular telephone using registration messages and reverse control channel transmission
US5546445 *Oct 23, 1995Aug 13, 1996Dennison; EverettCellular telephone system that uses position of a mobile unit to make call management decisions
US5561704 *Mar 16, 1994Oct 1, 1996At&T Corp.Proximity based toll free communication services
US5568153 *May 30, 1995Oct 22, 1996Telefonaktiebolaget Lm EricssonIndividually defined personal home area for subscribers in a cellular telecommunications network
US5579535 *Jan 6, 1995Nov 26, 1996Motorola, Inc.Personal communication system providing supplemental information mode
US5600706 *May 9, 1994Feb 4, 1997U S West, Inc.Method and system for determining the position of a mobile receiver
US5625688 *Jun 15, 1995Apr 29, 1997Jing Mei Industrial Holdings, Ltd.Shower telephone
US5673322 *Mar 22, 1996Sep 30, 1997Bell Communications Research, Inc.System and method for providing protocol translation and filtering to access the world wide web from wireless or low-bandwidth networks
US5717406 *Jun 7, 1995Feb 10, 1998Sanconix Inc.Enhanced position calculation
US5736959 *Apr 17, 1995Apr 7, 1998Teledesic CorporationEarth-fixed cell beam management for satellite communication system using dielectic lens-focused scanning beam antennas
US5742905 *Sep 19, 1994Apr 21, 1998Bell Communications Research, Inc.Personal communications internetworking
US5752186 *Jun 7, 1995May 12, 1998Jeman Technologies, Inc.Access free wireless telephony fulfillment service system
US5754955 *Sep 22, 1995May 19, 1998Telefonaktiebolaget Lm EricssonProviding mobile communications system services in dependence on identification of cell where a mobile-originated call was initiated
US5771445 *Oct 31, 1995Jun 23, 1998Nec CorporationPortable radio receiver with built-in antenna
US5774802 *Apr 10, 1996Jun 30, 1998Motorola Inc.Apparatus and method for billing in a wireless communication system
US5787347 *Dec 11, 1995Jul 28, 1998Gte Laboratories IncorporatedMethod and apparatus for selecting a cellular system for communication with a cellular telephone in a roaming area
US5802468 *Jun 28, 1995Sep 1, 1998Mci CorporationSystem and method for identifying calling areas within a communication system
US5815814 *Nov 22, 1995Sep 29, 1998Sygnet Communications, Inc.Cellular telephone system that uses position of a mobile unit to make call management decisions
US5835907 *Dec 20, 1995Nov 10, 1998Mci Communications CorporationEmergency PCS system for identification and notification of a subscriber's location
US5844522 *Oct 13, 1995Dec 1, 1998Trackmobile, Inc.Mobile telephone location system and method
US5889770 *Apr 6, 1995Mar 30, 1999Nokia Telecommunicaitons OyLocation updating for a packet-switched data service in a mobile communciation system
US5901353 *Mar 15, 1996May 4, 1999Nokia Telecommunications OyUpdating subscriber data of a mobile communication system
US5930699 *Nov 12, 1996Jul 27, 1999Ericsson Inc.Address retrieval system
US5948040 *Feb 6, 1997Sep 7, 1999Delorme Publishing Co.Travel reservation information and planning system
US5982762 *Mar 19, 1996Nov 9, 1999Hitachi, LtdWireless LAN system, base station device and wireless terminal device therefor, and method for relaying information frame
US6011973 *Dec 5, 1996Jan 4, 2000Ericsson Inc.Method and apparatus for restricting operation of cellular telephones to well delineated geographical areas
US6421009 *May 8, 1998Jul 16, 2002Peter SuprunovMobile station position tracking system for public safety
US6463273 *May 11, 1999Oct 8, 2002J. Cameron DayWireless warning system
US6516190 *Dec 17, 1999Feb 4, 2003Sonera OyjMethod and apparatus for calculating call charge rates in a mobile telecommunication system
US6650902 *Nov 15, 1999Nov 18, 2003Lucent Technologies Inc.Method and apparatus for wireless telecommunications system that provides location-based information delivery to a wireless mobile unit
USRE35916 *Nov 9, 1995Oct 6, 1998Dennison; EverettCellular telephone system that uses position of a mobile unit to make call management decisions
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US6983157 *Jan 7, 2003Jan 3, 2006Hitachi Electronic Service Co. Ltd.Automatic report control system for reporting arrival at destination or passing point
US7089264Jun 22, 2001Aug 8, 2006Navteq North America, LlcGeographic database organization that facilitates location-based advertising
US7092964Jun 27, 2002Aug 15, 2006Navteq North America, LlcMethod of collecting market research information
US7130641 *Jan 7, 2004Oct 31, 2006Sprint Spectrum L.P.Method and system for controlling location-determination in a wireless communication system
US7179760May 27, 2005Feb 20, 2007International Buisness Machines CorporationBilayer cap structure including HDP/bHDP films for conductive metallization and method of making same
US7206568Feb 28, 2005Apr 17, 2007Loc-Aid Technologies, Inc.System and method for exchange of geographic location and user profiles over a wireless network
US7321773 *Dec 13, 2002Jan 22, 2008Telecommunication Systems, Inc.Area watcher for wireless network
US7412247 *Jun 18, 2004Aug 12, 2008International Business Machines CorporationRemote location based services
US7460883 *Feb 3, 2008Dec 2, 2008International Business Machines CorporationKids cell phone button that calls the closest parent or relative
US7814106Oct 12, 2010Navteq North America, LlcGeographic database organization that facilitates location-based advertising
US7831243 *Nov 9, 2010Sony Ericsson Mobile Communications AbCommunications device, system and method for personalized content delivery
US7856236Dec 21, 2010Telecommunication Systems, Inc.Area watcher for wireless network
US7885667Feb 8, 2011International Business Machines CorporationRemote location based services
US7907551Mar 15, 2011Telecommunication Systems, Inc.Voice over internet protocol (VoIP) location based 911 conferencing
US7929530Apr 19, 2011Telecommunication Systems, Inc.Ancillary data support in session initiation protocol (SIP) messaging
US7941269Nov 11, 2008May 10, 2011Rialcardo Tice B.V. LlcNetwork-based navigation system having virtual drive-thru advertisements integrated with actual imagery from along a physical route
US7966013Nov 5, 2007Jun 21, 2011Telecommunication Systems, Inc.Roaming gateway enabling location based services (LBS) roaming for user plane in CDMA networks without requiring use of a mobile positioning center (MPC)
US8032112Oct 4, 2011Telecommunication Systems, Inc.Location derived presence information
US8059789Dec 1, 2006Nov 15, 2011Telecommunication Systems, Inc.Automatic location identification (ALI) emergency services pseudo key (ESPK)
US8068587Nov 29, 2011Telecommunication Systems, Inc.Nationwide table routing of voice over internet protocol (VOIP) emergency calls
US8150363Feb 16, 2006Apr 3, 2012Telecommunication Systems, Inc.Enhanced E911 network access for call centers
US8190125 *May 29, 2012At&T Intellectual Property I, L.P.Methods, systems, and computer-readable media for detecting a missing cellular device
US8190151May 17, 2011May 29, 2012Telecommunication Systems, Inc.Roaming gateway enabling location based services (LBS) roaming for user plane in CDMA networks without requiring use of a mobile positioning center (MPC)
US8208605Nov 27, 2007Jun 26, 2012Telecommunication Systems, Inc.Extended efficient usage of emergency services keys
US8369825Apr 2, 2012Feb 5, 2013Telecommunication Systems, Inc.Enhanced E911 network access for a call center using session initiation protocol (SIP) messaging
US8374623 *Jul 21, 2006Feb 12, 2013Microsoft CorporationLocation based, software control of mobile devices
US8385964Feb 26, 2013Xone, Inc.Methods and apparatuses for geospatial-based sharing of information by multiple devices
US8406728Apr 2, 2012Mar 26, 2013Telecommunication Systems, Inc.Enhanced E911 network access for call centers
US8406783Mar 26, 2013Qualcomm IncorporatedGeographical boundary based tracking
US8406992Dec 17, 2010Mar 26, 2013Rialcardo Tice B.V. LlcNetwork-based navigation system having virtual drive-thru advertisements integrated with actual imagery from along a physical route
US8467320Sep 13, 2006Jun 18, 2013Telecommunication Systems, Inc.Voice over internet protocol (VoIP) multi-user conferencing
US8532277Oct 3, 2011Sep 10, 2013Telecommunication Systems, Inc.Location derived presence information
US8538458Mar 11, 2008Sep 17, 2013X One, Inc.Location sharing and tracking using mobile phones or other wireless devices
US8660573Oct 6, 2005Feb 25, 2014Telecommunications Systems, Inc.Location service requests throttling
US8666397Dec 22, 2011Mar 4, 2014Telecommunication Systems, Inc.Area event handling when current network does not cover target area
US8682321Feb 22, 2012Mar 25, 2014Telecommunication Systems, Inc.Mobile internet protocol (IP) location
US8688087Apr 15, 2011Apr 1, 2014Telecommunication Systems, Inc.N-dimensional affinity confluencer
US8706095 *Apr 1, 2005Apr 22, 2014Omnitracs, LlcSystem for providing dynamic group and service assignments
US8712441Apr 11, 2013Apr 29, 2014Xone, Inc.Methods and systems for temporarily sharing position data between mobile-device users
US8750898Jan 18, 2013Jun 10, 2014X One, Inc.Methods and systems for annotating target locations
US8798572Feb 25, 2013Aug 5, 2014Telecommunication Systems, Inc.Solutions for voice over internet protocol (VoIP) 911 location services
US8798593May 7, 2013Aug 5, 2014X One, Inc.Location sharing and tracking using mobile phones or other wireless devices
US8798645Jan 30, 2013Aug 5, 2014X One, Inc.Methods and systems for sharing position data and tracing paths between mobile-device users
US8798647Oct 15, 2013Aug 5, 2014X One, Inc.Tracking proximity of services provider to services consumer
US8831556Oct 1, 2012Sep 9, 2014Telecommunication Systems, Inc.Unique global identifier header for minimizing prank emergency 911 calls
US8831635Jul 21, 2011Sep 9, 2014X One, Inc.Methods and apparatuses for transmission of an alert to multiple devices
US8885796Jun 25, 2012Nov 11, 2014Telecommunications Systems, Inc.Extended efficient usage of emergency services keys
US8942743Dec 28, 2011Jan 27, 2015Telecommunication Systems, Inc.iALERT enhanced alert manager
US8983047Mar 20, 2014Mar 17, 2015Telecommunication Systems, Inc.Index of suspicion determination for communications request
US8983048Sep 9, 2013Mar 17, 2015Telecommunication Systems, Inc.Location derived presence information
US8983495Feb 25, 2013Mar 17, 2015Qualcomm IncorporatedGeographical boundary based tracking
US8984591Dec 17, 2012Mar 17, 2015Telecommunications Systems, Inc.Authentication via motion of wireless device movement
US9031581Nov 7, 2014May 12, 2015X One, Inc.Apparatus and method for obtaining content on a cellular wireless device based on proximity to other wireless devices
US9088614Mar 7, 2014Jul 21, 2015Telecommunications Systems, Inc.User plane location services over session initiation protocol (SIP)
US9125039Feb 10, 2014Sep 1, 2015Telecommunication Systems, Inc.Enhanced E911 network access for a call center using session initiation protocol (SIP) messaging
US9130963Apr 6, 2011Sep 8, 2015Telecommunication Systems, Inc.Ancillary data support in session initiation protocol (SIP) messaging
US9154906Feb 24, 2006Oct 6, 2015Telecommunication Systems, Inc.Area watcher for wireless network
US9167558Jun 12, 2014Oct 20, 2015X One, Inc.Methods and systems for sharing position data between subscribers involving multiple wireless providers
US9173059Mar 5, 2014Oct 27, 2015Telecommunication Systems, Inc.Mobile internet protocol (IP) location
US9178996Jul 31, 2014Nov 3, 2015Telecommunication Systems, Inc.Unique global identifier header for minimizing prank 911 calls
US9185522Nov 7, 2014Nov 10, 2015X One, Inc.Apparatus and method to transmit content to a cellular wireless device based on proximity to other wireless devices
US9197992Jun 23, 2015Nov 24, 2015Telecommunication Systems, Inc.User plane location services over session initiation protocol (SIP)
US9208346Sep 5, 2013Dec 8, 2015Telecommunication Systems, Inc.Persona-notitia intellection codifier
US9210548Dec 10, 2014Dec 8, 2015Telecommunication Systems, Inc.iALERT enhanced alert manager
US9220958Oct 15, 2012Dec 29, 2015Telecommunications Systems, Inc.Consequential location derived information
US9232062Mar 19, 2014Jan 5, 2016Telecommunication Systems, Inc.Mobile automatic location identification (ALI) for first responders
US9237228Jun 5, 2014Jan 12, 2016Telecommunication Systems, Inc.Solutions for voice over internet protocol (VoIP) 911 location services
US9253616Mar 24, 2015Feb 2, 2016X One, Inc.Apparatus and method for obtaining content on a cellular wireless device based on proximity
US9282451Dec 13, 2005Mar 8, 2016Telecommunication Systems, Inc.Automatic location identification (ALI) service requests steering, connection sharing and protocol translation
US9288615Feb 24, 2014Mar 15, 2016Telecommunication Systems, Inc.Location service requests throttling
US9301191Oct 17, 2013Mar 29, 2016Telecommunication Systems, Inc.Quality of service to over the top applications used with VPN
US9307372Mar 19, 2013Apr 5, 2016Telecommunication Systems, Inc.No responders online
US9313637Nov 30, 2012Apr 12, 2016Telecommunication Systems, Inc.Wireless emergency caller profile data delivery over a legacy interface
US9313638Aug 15, 2013Apr 12, 2016Telecommunication Systems, Inc.Device independent caller data access for emergency calls
US9326143Feb 9, 2015Apr 26, 2016Telecommunication Systems, Inc.Authentication via motion of wireless device movement
US9338153Apr 10, 2013May 10, 2016Telecommunication Systems, Inc.Secure distribution of non-privileged authentication credentials
US9351105 *Jul 2, 2013May 24, 2016Sap SeLocation based applications
US9384339Jan 8, 2013Jul 5, 2016Telecommunication Systems, Inc.Authenticating cloud computing enabling secure services
US20040192337 *Dec 13, 2002Sep 30, 2004Hines Gordon JohnArea watcher for wireless network
US20040203597 *Oct 9, 2002Oct 14, 2004Pitt Lance DouglasMobile subscriber privacy evaluation using solicited vs. unsolicited differentiation
US20040203932 *Jan 7, 2003Oct 14, 2004Hitachi Electronic Service Co. Ltd.Automatic report control system for reporting arrival at destination or passing point
US20050003834 *Jun 18, 2004Jan 6, 2005International Business MachinesRemote location based services
US20050202817 *Feb 28, 2005Sep 15, 2005Isaias SuditSystem and method for exchange of geographic location and user profiles over a wireless network
US20050202830 *Feb 28, 2005Sep 15, 2005Isaias SuditMethod and system for monitoring location of a cellular phone in relation to a predefined geographic area with automatic notation of boundary violations
US20050202831 *Feb 28, 2005Sep 15, 2005Isaias SuditTelephone user interface for efficient self-location of mobile phone
US20050202832 *Feb 28, 2005Sep 15, 2005Isaias SuditPrivacy features for a cellular telephone location identification system
US20050202834 *Feb 28, 2005Sep 15, 2005Isaias SuditSystem and method for determination of meeting place utilizing telephone auto location system
US20060223525 *Apr 1, 2005Oct 5, 2006Ram Satish NSystem for providing dynamic group and service assignments
US20060253481 *Jun 21, 2006Nov 9, 2006Guido Matthew AGeographic database organization that facilitates location-based advertising
US20060270245 *May 27, 2005Nov 30, 2006International Business Machines CorporationBILAYER CAP STRUCTURE INCLUDING HDP/bHDP FILMS FOR CONDUCTIVE METALLIZATION AND METHOD OF MAKING SAME
US20070019795 *Jun 14, 2005Jan 25, 2007Sony Ericsson Mobile Communications AbCommunications device, system and method for personalized content delivery
US20070021125 *Oct 6, 2005Jan 25, 2007Yinjun ZhuLocation service requests throttling
US20070049288 *Dec 19, 2005Mar 1, 2007Lamprecht Leslie JCreating optimum temporal location trigger for multiple requests
US20070092070 *Aug 15, 2006Apr 26, 2007Jon CroyVoice over Internet protocol (VoIP) location based 911 conferencing
US20070190968 *Feb 16, 2006Aug 16, 2007Richard DickinsonEnhanced E911 network access for call centers
US20070201623 *Dec 1, 2006Aug 30, 2007John Gordon HinesAutomatic location identification (ALI) emergency services pseudo key (ESPK)
US20070238455 *Apr 7, 2006Oct 11, 2007Yinjun ZhuMobile based area event handling when currently visited network doe not cover area
US20080019317 *Jul 21, 2006Jan 24, 2008Microsoft CorporationLocation based, software control of mobile devices
US20080090546 *Oct 17, 2006Apr 17, 2008Richard DickinsonEnhanced E911 network access for a call center using session initiation protocol (SIP) messaging
US20080119202 *Jan 17, 2008May 22, 2008Hines Gordon JArea watcher for wireless network
US20080126535 *Dec 14, 2006May 29, 2008Yinjun ZhuUser plane location services over session initiation protocol (SIP)
US20080154966 *Nov 27, 2007Jun 26, 2008Gerhard GeldenbottExtended efficient usage of emergency services keys
US20080242296 *Nov 5, 2007Oct 2, 2008D Souza MyronRoaming gateway enabling location based services (LBS) roaming for user plane in CDMA networks without requiring use of a mobile positioning center (MPC)
US20080261619 *Sep 26, 2007Oct 23, 2008John Gordon HinesInjection of location object into routing SIP message
US20080261625 *Jun 26, 2008Oct 23, 2008International Business Machines CorporationRemote location based services
US20090023458 *Oct 1, 2008Jan 22, 2009At&T Mobility Ii, LlcMethod and System for Controlling the Operation of Movable Wireless Networks
US20090075629 *Sep 17, 2007Mar 19, 2009Anita Hogans SimpsonMethods, Systems, and Computer-Readable Media for Detecting a Missing Cellular Device
US20090075677 *Sep 14, 2007Mar 19, 2009Sony Ericsson Mobile Communications AbDynamically Updated Proximity Warning
US20090125226 *Nov 11, 2008May 14, 2009Laumeyer Robert ANetwork-based navigation system having virtual drive-thru advertisements integrated with actual imagery from along a physical route
US20090147775 *Dec 1, 2008Jun 11, 2009Marshall Roger SAncillary data support in session initiation protocol (SIP) messaging
US20090197636 *Oct 14, 2008Aug 6, 2009International Business Machines CorporationKid's cell phone button that calls the closest parent or relative
US20100090852 *Jun 16, 2009Apr 15, 2010Qualcomm IncorporatedGeographical boundary based tracking
US20100272242 *Oct 28, 2010Jon CroyVoice over internet protocol (VolP) location based 911 conferencing
US20110093350 *Dec 17, 2010Apr 21, 2011Facet Technology CorporationNetwork-Based Navigation System Having Virtual Drive-Thru Advertisements Integrated with Actual Imagery from Along a Physical Route
US20110149953 *Dec 22, 2010Jun 23, 2011William HelgesonTracking results of a v2 query in voice over internet (VoIP) emergency call systems
US20110223909 *Sep 15, 2011D Souza MyronRoaming gateway enabling location based services (LBS) roaming for user plane in CDMA networks without requiring use of a mobile positioning center (MPC)
US20140187279 *Dec 31, 2012Jul 3, 2014Elwha LlcCost-effective mobile connectivity protocols
US20150011187 *Jul 2, 2013Jan 8, 2015Sap AgLocation based applications
CN103106807A *Jan 11, 2013May 15, 2013南威软件股份有限公司Method of location early warning in official vehicle monitoring
EP1631908A2 *Mar 24, 2004Mar 8, 2006Intellectual Business Machines CorporationSecure coordinate identification method, system and program
EP1771028A1 *Sep 27, 2006Apr 4, 2007NTT DoCoMo, Inc.Presence determination device and presence determination method
WO2009035760A1 *Jul 16, 2008Mar 19, 2009Sony Ericsson Mobile Communications AbDynamically updated proximity warning
WO2015138913A1 *Mar 13, 2015Sep 17, 2015Ims Solutions Inc.Facility and infrastructure utilization
Classifications
U.S. Classification455/440
International ClassificationG08G1/123, H04W8/08, H04W4/02, G01S19/34, G01S19/14
Cooperative ClassificationH04W4/02, H04W8/08, G08G1/207
European ClassificationG08G1/20C, H04W4/02
Legal Events
DateCodeEventDescription
Jan 29, 2002ASAssignment
Owner name: SIGNALSOFT CORPORATION, COLORADO
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:HOSE, DAVID A.;FITCH, JAMES A.;REEL/FRAME:012568/0819
Effective date: 20011211
Jun 11, 2004ASAssignment
Owner name: OPENWAVE SYSTEMS, INC., CALIFORNIA
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:SIGNALSOFT CORP.;REEL/FRAME:014718/0409
Effective date: 20040609
Aug 16, 2013ASAssignment
Owner name: UNWIRED PLANET IP MANAGER, LLC, NEVADA
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:UNWIRED PLANET, INC.;REEL/FRAME:031030/0081
Effective date: 20130213
Owner name: UNWIRED PLANET, LLC, NEVADA
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:UNWIRED PLANET IP MANAGER, LLC;REEL/FRAME:031030/0115
Effective date: 20130213