CA2053851A1 - Integrated cellular communications system - Google Patents

Integrated cellular communications system

Info

Publication number
CA2053851A1
CA2053851A1 CA2053851A CA2053851A CA2053851A1 CA 2053851 A1 CA2053851 A1 CA 2053851A1 CA 2053851 A CA2053851 A CA 2053851A CA 2053851 A CA2053851 A CA 2053851A CA 2053851 A1 CA2053851 A1 CA 2053851A1
Authority
CA
Canada
Prior art keywords
satellite
node
calls
spread
regional
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
CA2053851A
Other languages
French (fr)
Other versions
CA2053851C (en
Inventor
Albert John Mallinckrodt
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.)
ATC Technologies LLC
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2053851A1 publication Critical patent/CA2053851A1/en
Application granted granted Critical
Publication of CA2053851C publication Critical patent/CA2053851C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04TPC
    • H04W52/18TPC being performed according to specific parameters
    • H04W52/22TPC being performed according to specific parameters taking into account previous information or commands
    • H04W52/228TPC being performed according to specific parameters taking into account previous information or commands using past power values or information
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/14Relay systems
    • H04B7/15Active relay systems
    • H04B7/185Space-based or airborne stations; Stations for satellite systems
    • H04B7/1853Satellite systems for providing telephony service to a mobile station, i.e. mobile satellite service
    • H04B7/18532Arrangements for managing transmission, i.e. for transporting data or a signalling message
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/14Relay systems
    • H04B7/15Active relay systems
    • H04B7/185Space-based or airborne stations; Stations for satellite systems
    • H04B7/1853Satellite systems for providing telephony service to a mobile station, i.e. mobile satellite service
    • H04B7/18558Arrangements for managing communications, i.e. for setting up, maintaining or releasing a call between stations
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/14Relay systems
    • H04B7/15Active relay systems
    • H04B7/204Multiple access
    • H04B7/2041Spot beam multiple access
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/14Relay systems
    • H04B7/15Active relay systems
    • H04B7/204Multiple access
    • H04B7/216Code division or spread-spectrum multiple access [CDMA, SSMA]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04JMULTIPLEX COMMUNICATION
    • H04J13/00Code division multiplex systems
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/004Arrangements for detecting or preventing errors in the information received by using forward error control
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/004Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056Systems characterized by the type of code used
    • H04L1/0071Use of interleaving
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/20Arrangements for detecting or preventing errors in the information received using signal quality detector
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/02Channels characterised by the type of signal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04TPC
    • H04W52/18TPC being performed according to specific parameters
    • H04W52/22TPC being performed according to specific parameters taking into account previous information or commands
    • H04W52/225Calculation of statistics, e.g. average, variance
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/14Relay systems
    • H04B7/15Active relay systems
    • H04B7/185Space-based or airborne stations; Stations for satellite systems
    • H04B7/1851Systems using a satellite or space-based relay
    • H04B7/18517Transmission equipment in earth stations
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/14Relay systems
    • H04B7/15Active relay systems
    • H04B7/185Space-based or airborne stations; Stations for satellite systems
    • H04B7/1853Satellite systems for providing telephony service to a mobile station, i.e. mobile satellite service
    • H04B7/18532Arrangements for managing transmission, i.e. for transporting data or a signalling message
    • H04B7/18534Arrangements for managing transmission, i.e. for transporting data or a signalling message for enhancing link reliablility, e.g. satellites diversity
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/14Relay systems
    • H04B7/15Active relay systems
    • H04B7/185Space-based or airborne stations; Stations for satellite systems
    • H04B7/1853Satellite systems for providing telephony service to a mobile station, i.e. mobile satellite service
    • H04B7/18539Arrangements for managing radio, resources, i.e. for establishing or releasing a connection
    • H04B7/18543Arrangements for managing radio, resources, i.e. for establishing or releasing a connection for adaptation of transmission parameters, e.g. power control
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W84/00Network topologies
    • H04W84/02Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/04Large scale networks; Deep hierarchical networks
    • H04W84/06Airborne or Satellite Networks
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W92/00Interfaces specially adapted for wireless communication networks
    • H04W92/02Inter-networking arrangements

Abstract

A code division multiple access (CDMA) spread spectrum cellular communications system with both surface and satellite nodes and using forward error correction coding, to enhance effective gain and selectivity, is provided. The system network control center (12) directs the top level allocation of calls to regional resources in the system. The regional node control centers (14) are connected to the system network control center (12) and direct the allocation of calls to ground nodes. The ground nodes (16) under the control of one of the regional node control centers (14) receive calls over land lines, spread them, modulate them, and transmit them. Satellite node control centers (18) are also connected to the network control center (12), and uplink the spread, multiplexed calls to the designated satellite (20). User units (22) respond to signals of either satellite or ground node origin. A
digital data interleaving feature reduces fading. User position is determined. An adaptative transmitter power control (188) compensates for signal strength variations. An intercell bus (90) in a satellitte node (20) connects together multiple cells.
CA002053851A 1990-03-19 1991-03-19 Integrated cellular communications system Expired - Lifetime CA2053851C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/495,497 US5073900A (en) 1990-03-19 1990-03-19 Integrated cellular communications system
US495,491 1990-03-19

Publications (2)

Publication Number Publication Date
CA2053851A1 true CA2053851A1 (en) 1991-09-20
CA2053851C CA2053851C (en) 1997-09-30

Family

ID=23968879

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002053851A Expired - Lifetime CA2053851C (en) 1990-03-19 1991-03-19 Integrated cellular communications system

Country Status (8)

Country Link
US (2) US5073900A (en)
EP (2) EP0476127B1 (en)
JP (1) JPH04506294A (en)
AT (1) ATE159635T1 (en)
AU (1) AU7692291A (en)
CA (1) CA2053851C (en)
DE (1) DE69128016T2 (en)
WO (1) WO1991015071A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10979124B2 (en) 2016-10-04 2021-04-13 At&T Intellectual Property I, L.P. Forward error correction code selection in wireless systems

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EP0769857A3 (en) 1998-08-12
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AU7692291A (en) 1991-10-21
ATE159635T1 (en) 1997-11-15
DE69128016T2 (en) 1998-06-04
US5073900A (en) 1991-12-17
EP0769857A2 (en) 1997-04-23
EP0476127A4 (en) 1993-02-24
US5339330A (en) 1994-08-16
JPH04506294A (en) 1992-10-29
DE69128016D1 (en) 1997-11-27
WO1991015071A1 (en) 1991-10-03
EP0476127B1 (en) 1997-10-22

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