CA2263280A1 - Method and apparatus for mobile satellite communication - Google Patents

Method and apparatus for mobile satellite communication Download PDF

Info

Publication number
CA2263280A1
CA2263280A1 CA002263280A CA2263280A CA2263280A1 CA 2263280 A1 CA2263280 A1 CA 2263280A1 CA 002263280 A CA002263280 A CA 002263280A CA 2263280 A CA2263280 A CA 2263280A CA 2263280 A1 CA2263280 A1 CA 2263280A1
Authority
CA
Canada
Prior art keywords
data
formats
rates
different
communications system
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
CA002263280A
Other languages
French (fr)
Other versions
CA2263280C (en
Inventor
Louis Christodoulides
Howard Ray Feldman
Eyal Trachtman
Siu Wah Wong
Hok Shuen Wong
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Inmarsat Global Ltd
Original Assignee
International Mobile Satellite Organization
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
Priority claimed from GB9804639A external-priority patent/GB2335828B/en
Priority claimed from GB9804640A external-priority patent/GB2335827B/en
Application filed by International Mobile Satellite Organization filed Critical International Mobile Satellite Organization
Publication of CA2263280A1 publication Critical patent/CA2263280A1/en
Application granted granted Critical
Publication of CA2263280C publication Critical patent/CA2263280C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • H04B7/1853—Satellite systems for providing telephony service to a mobile station, i.e. mobile satellite service
    • H04B7/18532—Arrangements for managing transmission, i.e. for transporting data or a signalling message
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0041—Arrangements at the transmitter end
    • H04L1/0042—Encoding specially adapted to other signal generation operation, e.g. in order to reduce transmit distortions, jitter, or to improve signal shape
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0072—Error control for data other than payload data, e.g. control data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0078—Avoidance of errors by organising the transmitted data in a format specifically designed to deal with errors, e.g. location
    • H04L1/0083—Formatting with frames or packets; Protocol or part of protocol for error control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/345—Modifications of the signal space to allow the transmission of additional information
    • H04L27/3461—Modifications of the signal space to allow the transmission of additional information in order to transmit a subchannel
    • H04L27/3466—Modifications of the signal space to allow the transmission of additional information in order to transmit a subchannel by providing an alternative to one signal point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/40—Network security protocols
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0064—Concatenated codes
    • H04L1/0066—Parallel concatenated codes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0078—Avoidance of errors by organising the transmitted data in a format specifically designed to deal with errors, e.g. location
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/30—Definitions, standards or architectural aspects of layered protocol stacks
    • H04L69/32—Architecture of open systems interconnection [OSI] 7-layer type protocol stacks, e.g. the interfaces between the data link level and the physical level
    • H04L69/322—Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions
    • H04L69/324—Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions in the data link layer [OSI layer 2], e.g. HDLC
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/18—Negotiating wireless communication parameters
    • H04W28/22—Negotiating communication rate
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/18—Information format or content conversion, e.g. adaptation by the network of the transmitted or received information for the purpose of wireless delivery to users or terminals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/04—Large scale networks; Deep hierarchical networks
    • H04W84/06—Airborne or Satellite Networks

Abstract

A set of formats and protocols is proposed for a satellite communications system. In these formats, a pilot signal (PS) is inserted after every 25 or 29 data symbols. The formats consist of SCPC frames (F) which may contain either data (D) and in-band signalling information (SU), or only signalling information (SU). In either case, the contents of each frame (F) are error-correction coded before transmission with the same coding rate. Each data frame (F) carries the data content of an integral number of input user data frames (M), each of which comprises four subframes. Different symbol transmission rates are used for different input data rates, the symbol transmission rates being selected so that their different synchronising clock rates can easily be obtained from a common clock. Data bursts may be preceded by a constant power level preamble (P). The formats and protocols satisfy the requirements of a high data rate satellite communications system.
CA002263280A 1998-03-04 1999-03-02 Method and apparatus for mobile satellite communication Expired - Fee Related CA2263280C (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB9804639A GB2335828B (en) 1998-03-04 1998-03-04 Satellite Communications System
GB9804640.2 1998-03-04
GB9804639.4 1998-03-04
GB9804640A GB2335827B (en) 1998-03-04 1998-03-04 Data communication method and apparatus

Publications (2)

Publication Number Publication Date
CA2263280A1 true CA2263280A1 (en) 1999-09-04
CA2263280C CA2263280C (en) 2008-10-07

Family

ID=26313222

Family Applications (2)

Application Number Title Priority Date Filing Date
CA002263277A Abandoned CA2263277A1 (en) 1998-03-04 1999-03-02 Carrier activation for data communications
CA002263280A Expired - Fee Related CA2263280C (en) 1998-03-04 1999-03-02 Method and apparatus for mobile satellite communication

Family Applications Before (1)

Application Number Title Priority Date Filing Date
CA002263277A Abandoned CA2263277A1 (en) 1998-03-04 1999-03-02 Carrier activation for data communications

Country Status (5)

Country Link
US (3) US6665361B1 (en)
JP (2) JP3923208B2 (en)
CA (2) CA2263277A1 (en)
DE (2) DE19909575A1 (en)
FR (3) FR2775854B1 (en)

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US7817759B2 (en) 2003-06-13 2010-10-19 Dtvg Licensing, Inc. Method and apparatus for providing carrier synchronization in digital broadcast and interactive systems
US8208499B2 (en) 2003-06-13 2012-06-26 Dtvg Licensing, Inc. Framing structure for digital broadcasting and interactive services

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US7817759B2 (en) 2003-06-13 2010-10-19 Dtvg Licensing, Inc. Method and apparatus for providing carrier synchronization in digital broadcast and interactive systems
US8208499B2 (en) 2003-06-13 2012-06-26 Dtvg Licensing, Inc. Framing structure for digital broadcasting and interactive services

Also Published As

Publication number Publication date
DE19909576A1 (en) 1999-09-16
FR2823924A1 (en) 2002-10-25
US20030012152A1 (en) 2003-01-16
FR2778517B1 (en) 2004-11-19
JP2000036782A (en) 2000-02-02
US6665361B1 (en) 2003-12-16
CA2263277A1 (en) 1999-09-04
JPH11355196A (en) 1999-12-24
JP3923208B2 (en) 2007-05-30
US7266097B2 (en) 2007-09-04
DE19909575A1 (en) 1999-09-09
US20040114547A1 (en) 2004-06-17
FR2775854B1 (en) 2004-10-29
CA2263280C (en) 2008-10-07
FR2778517A1 (en) 1999-11-12
FR2775854A1 (en) 1999-09-10

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