WO1998039858A3 - A multi-user communication system architecture with distributed transmitters - Google Patents

A multi-user communication system architecture with distributed transmitters Download PDF

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Publication number
WO1998039858A3
WO1998039858A3 PCT/US1998/004295 US9804295W WO9839858A3 WO 1998039858 A3 WO1998039858 A3 WO 1998039858A3 US 9804295 W US9804295 W US 9804295W WO 9839858 A3 WO9839858 A3 WO 9839858A3
Authority
WO
WIPO (PCT)
Prior art keywords
module
series
signals
user
modules
Prior art date
Application number
PCT/US1998/004295
Other languages
French (fr)
Other versions
WO1998039858A2 (en
Inventor
David S Miller
Original Assignee
Qualcomm Inc
David S Miller
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 to KR1019997008063A priority Critical patent/KR100807993B1/en
Priority to AT98912904T priority patent/ATE273586T1/en
Priority to AU67583/98A priority patent/AU6758398A/en
Priority to BR9808170-5A priority patent/BR9808170A/en
Priority to CA002283164A priority patent/CA2283164C/en
Priority to JP53879498A priority patent/JP4162721B2/en
Application filed by Qualcomm Inc, David S Miller filed Critical Qualcomm Inc
Priority to EP98912904A priority patent/EP0965177B1/en
Priority to DE69825567T priority patent/DE69825567T2/en
Publication of WO1998039858A2 publication Critical patent/WO1998039858A2/en
Publication of WO1998039858A3 publication Critical patent/WO1998039858A3/en
Priority to FI991875A priority patent/FI19991875A/en
Priority to HK00103524A priority patent/HK1025689A1/en

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
    • H04B7/204—Multiple access
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • 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
    • H04B7/204—Multiple access
    • H04B7/216—Code division or spread-spectrum multiple access [CDMA, SSMA]

Abstract

A new signal processing architecture for base stations and gateways (124, 126) used in spread spectrum communication systems (100) that simplifies data transfer, reduces required bus capacity, and does not require special synchronization of signals that are to be combined. A series of transmission modules (5081-508M) are used to transfer data to corresponding ones of a series of analog transmitters (4121-412M) used to form communication circuits for each system user. Each transmission module (5081-508M) employs a series of encoders (502MR) and modulators (504MS) to form spread communication signals, using appropriate PN spreading codes. Spread spectrum communication signals from each module (508) for each system user (D), are summed together (5101-510M) and transferred to a single analog transmitter (412) associated with that module. The signals being combined are automatically synchronized by common timing signals used for elements within each module. The number of processing elements within each module is such that at least one processing path is available for each user or user channel over which it is desired to transmit information through the connected analog transmitter (4121-412M). Data is output from the modules (5081-508M) at a greatly reduced transfer rate which can be more easily accommodated using current technology. This is very useful for satellite based communication systems, or high capacity cellular systems, and this system architecture can be accomplished cost effectively using a series of easily manufactured circuit modules.
PCT/US1998/004295 1997-03-04 1998-03-04 A multi-user communication system architecture with distributed transmitters WO1998039858A2 (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
AT98912904T ATE273586T1 (en) 1997-03-04 1998-03-04 MULTI-USER MESSAGE TRANSMISSION SYSTEM ARCHIT KTR WITH DISTRIBUTED TRANSMITTERS
AU67583/98A AU6758398A (en) 1997-03-04 1998-03-04 A multi-user communication system architecture with distributed transmitters
BR9808170-5A BR9808170A (en) 1997-03-04 1998-03-04 Architecture of a communication system for multiple users with distributed transmitters
CA002283164A CA2283164C (en) 1997-03-04 1998-03-04 A multi-user communication system architecture with distributed transmitters
JP53879498A JP4162721B2 (en) 1997-03-04 1998-03-04 Multi-user communication system architecture with distributed transmitter
KR1019997008063A KR100807993B1 (en) 1997-03-04 1998-03-04 A multi-user communication system architecture with distributed transmitters
EP98912904A EP0965177B1 (en) 1997-03-04 1998-03-04 A multi-user communication system architecture with distributed transmitters
DE69825567T DE69825567T2 (en) 1997-03-04 1998-03-04 MULTI-USER MESSAGE TRANSMISSION SYSTEM ARCHITECTURE WITH DISTRIBUTED TRANSMITTERS
FI991875A FI19991875A (en) 1997-03-04 1999-09-02 Multi-user telecommunications system architecture, where the transmitters have been distributed
HK00103524A HK1025689A1 (en) 1997-03-04 2000-06-12 A multi-user communication system architecture with distributed transmitters.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US3980397P 1997-03-04 1997-03-04
US60/039,803 1997-03-04

Publications (2)

Publication Number Publication Date
WO1998039858A2 WO1998039858A2 (en) 1998-09-11
WO1998039858A3 true WO1998039858A3 (en) 1999-01-14

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1998/004295 WO1998039858A2 (en) 1997-03-04 1998-03-04 A multi-user communication system architecture with distributed transmitters

Country Status (15)

Country Link
US (1) US6510172B1 (en)
EP (1) EP0965177B1 (en)
JP (1) JP4162721B2 (en)
KR (1) KR100807993B1 (en)
CN (1) CN100391116C (en)
AT (1) ATE273586T1 (en)
AU (1) AU6758398A (en)
BR (1) BR9808170A (en)
CA (1) CA2283164C (en)
DE (1) DE69825567T2 (en)
FI (1) FI19991875A (en)
HK (1) HK1025689A1 (en)
ID (1) ID24916A (en)
RU (1) RU2195771C2 (en)
WO (1) WO1998039858A2 (en)

Families Citing this family (58)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9443358B2 (en) 1995-06-07 2016-09-13 Automotive Vehicular Sciences LLC Vehicle software upgrade techniques
US6720920B2 (en) * 1997-10-22 2004-04-13 Intelligent Technologies International Inc. Method and arrangement for communicating between vehicles
US8983771B2 (en) 1997-10-22 2015-03-17 Intelligent Technologies International, Inc. Inter-vehicle information conveyance system and method
US6396819B1 (en) 1998-03-21 2002-05-28 Richard D. Fleeter Low-cost satellite communication system
US10240935B2 (en) 1998-10-22 2019-03-26 American Vehicular Sciences Llc Vehicle software upgrade techniques
US6483823B1 (en) * 1999-02-16 2002-11-19 Sprint Communications Company L.P. Cellular/PCS CDMA system with increased sector capacity by using two radio frequencies
US6930983B2 (en) * 2000-03-15 2005-08-16 Texas Instruments Incorporated Integrated circuits, systems, apparatus, packets and processes utilizing path diversity for media over packet applications
JP3285012B2 (en) * 1999-07-29 2002-05-27 日本電気株式会社 CDMA base station transmitter
US6667715B1 (en) * 1999-08-18 2003-12-23 Hughes Electronics Corporation Signal processing circuit for communicating with a modular mobile satellite terminal and method therefor
DE69908125T2 (en) * 1999-09-13 2003-12-04 Mitsubishi Electric Inf Tech Allocation of spreading sequences in an MCCDMA system
US7433391B2 (en) * 2000-02-28 2008-10-07 Aeroastro, Inc. Spread-spectrum receiver with fast M-sequence transform
US7227884B2 (en) 2000-02-28 2007-06-05 Aeroastro, Inc. Spread-spectrum receiver with progressive fourier transform
US6952454B1 (en) 2000-03-22 2005-10-04 Qualcomm, Incorporated Multiplexing of real time services and non-real time services for OFDM systems
KR101038406B1 (en) * 2000-07-12 2011-06-01 퀄컴 인코포레이티드 Multiplexing of real time services and non-real time services for ofdm systems
US7400857B2 (en) * 2000-12-12 2008-07-15 The Directv Group, Inc. Communication system using multiple link terminals
US6952580B2 (en) * 2000-12-12 2005-10-04 The Directv Group, Inc. Multiple link internet protocol mobile communications system and method therefor
US7181162B2 (en) * 2000-12-12 2007-02-20 The Directv Group, Inc. Communication system using multiple link terminals
US20020073437A1 (en) * 2000-12-12 2002-06-13 Hughes Electronics Corporation Television distribution system using multiple links
US7103317B2 (en) * 2000-12-12 2006-09-05 The Directv Group, Inc. Communication system using multiple link terminals for aircraft
US8396513B2 (en) * 2001-01-19 2013-03-12 The Directv Group, Inc. Communication system for mobile users using adaptive antenna
US7187949B2 (en) * 2001-01-19 2007-03-06 The Directv Group, Inc. Multiple basestation communication system having adaptive antennas
US7809403B2 (en) * 2001-01-19 2010-10-05 The Directv Group, Inc. Stratospheric platforms communication system using adaptive antennas
GB2399998B (en) * 2001-02-01 2005-04-13 Fujitsu Ltd Communications systems
US7068616B2 (en) * 2001-02-05 2006-06-27 The Directv Group, Inc. Multiple dynamic connectivity for satellite communications systems
CN100391314C (en) * 2001-08-17 2008-05-28 鸿海精密工业股份有限公司 Multiple lamp tube driving system
US7224716B2 (en) * 2002-02-11 2007-05-29 Hypertag Communications, Inc. Communication methods and apparatus employing spread spectrum techniques and doppler-tolerant polyphase codes
US20040219889A1 (en) * 2003-04-29 2004-11-04 Walter Honcharenko Phase-combined transmitter module and modular transmitter system
US8325591B2 (en) * 2004-02-26 2012-12-04 Qualcomm Incorporated Suppressing cross-polarization interference in an orthogonal communication link
US7623826B2 (en) 2004-07-22 2009-11-24 Frank Pergal Wireless repeater with arbitrary programmable selectivity
DE602005005031T2 (en) * 2005-06-01 2009-03-19 Ntt Docomo Inc. Communications relay device
US7583935B2 (en) 2005-07-08 2009-09-01 Telcom Ventures, Llc Method and system for mitigating co-channel interference
US7839828B2 (en) * 2005-12-15 2010-11-23 Interdigital Technology Corporation Method and apparatus for selecting a transport format combination
US7893873B2 (en) 2005-12-20 2011-02-22 Qualcomm Incorporated Methods and systems for providing enhanced position location in wireless communications
WO2007136415A2 (en) * 2005-12-30 2007-11-29 Comtech Mobile Datacom Corporation Mobile satellite communications
RU2419989C2 (en) * 2006-01-03 2011-05-27 ТЕЛКОМ ВЕНЧЕРЗ ЭлЭлСи Use of synchronisation and time distribution in combined satellite-land line network with multiplexing with orthogonal frequency division
US8603248B2 (en) * 2006-02-10 2013-12-10 Veeco Instruments Inc. System and method for varying wafer surface temperature via wafer-carrier temperature offset
US8275080B2 (en) * 2006-11-17 2012-09-25 Comtech Mobile Datacom Corporation Self-supporting simplex packets
BRPI0809404B1 (en) * 2007-03-19 2020-10-13 Godo Kaisha Ip Bridge 1. user equipment and method for generating a preamble sequence for use on user equipment
WO2008118593A1 (en) 2007-03-27 2008-10-02 Telcom Ventures, Llc Method and system for improving the spectral efficiency of a data communication link
CA2698383C (en) 2007-09-03 2015-11-10 Samsung Electronics Co., Ltd. Sequence hopping in sc-fdma communication systems
US8284749B2 (en) * 2008-03-10 2012-10-09 Comtech Mobile Datacom Corporation Time slot synchronized, flexible bandwidth communication system
US9106364B1 (en) 2009-01-26 2015-08-11 Comtech Mobile Datacom Corporation Signal processing of a high capacity waveform
US8548107B1 (en) 2009-01-26 2013-10-01 Comtech Mobile Datacom Corporation Advanced multi-user detector
US8675711B1 (en) 2009-09-25 2014-03-18 Comtech Mobile Datacom Corporation System and methods for dynamic spread spectrum usage
US8611395B2 (en) * 2010-02-10 2013-12-17 Gilat Satellite Networks Ltd. Adaptive spreading, modulation, and coding
KR101625213B1 (en) * 2010-12-21 2016-06-07 한국전자통신연구원 Method for detecting return link packet error in hub which communicates with satellite terminal, and apparatus thereof
DE102011006509B4 (en) * 2011-03-31 2016-05-12 Siemens Aktiengesellschaft Local coil system, magnetic resonance system and method for transmitting signals from a local coil
KR102330742B1 (en) 2013-02-22 2021-11-23 오시아 인크. Method and apparatus for focused data communications
JP6559706B2 (en) 2014-01-27 2019-08-14 ビーコ インストルメンツ インコーポレイテッド Wafer carrier with holding pockets with compound radius for chemical vapor deposition systems
US11831392B1 (en) * 2014-03-15 2023-11-28 Micro Mobio Corporation Terrestrial and satellite radio frequency transmission system and method
US20160299232A1 (en) * 2014-10-21 2016-10-13 Topcon Positioning Systems, Inc. Universal multi-channel gnss signal receiver
EP3369189A2 (en) * 2015-10-28 2018-09-05 Worldvu Satellites Limited Satellite system having increased communications capacity and methods for increasing the capacity of satellite systems
CN108701380B (en) * 2016-01-13 2022-04-05 3Db数据接驳股份公司 Method, device and system for secure distance measurement
RU2627685C1 (en) * 2016-07-06 2017-08-10 Общество с ограниченной ответственностью Конструкторское бюро аппаратуры связи "Марс" Method of using frequency resource, communication system and terminal
KR101994231B1 (en) * 2016-12-07 2019-06-28 동국대학교 산학협력단 Apparatus and method for transmitting and receiving data using non-orthogonal multiple access
US11621768B2 (en) 2019-12-24 2023-04-04 Huawei Technologies Co., Ltd. Terrestrial and non-terrestrial communication systems, apparatuses, and methods
RU2758587C1 (en) * 2021-05-11 2021-11-01 Акционерное общество Научно-производственный центр "Электронные вычислительно-информационные системы" (АО НПЦ "ЭЛВИС") High-speed data transmission device using digital modulation and pseudorandom adjustment of the operating frequency (options)
CN116208268B (en) * 2023-01-12 2024-02-13 深圳市科楠科技开发有限公司 Method, device, equipment and storage medium for testing satellite broadcast receiving equipment

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996022661A2 (en) * 1995-01-04 1996-07-25 Qualcomm Incorporated Method and apparatus for using full spectrum transmitted power in a spread spectrum communication system for tracking individual recipient phase time and energy
EP0748062A2 (en) * 1995-06-06 1996-12-11 Globalstar L.P. Multiple satellite repeater capacity loading with multiple spread spectrum gateway antennas
EP0755127A2 (en) * 1995-07-19 1997-01-22 Nec Corporation CDMA diversity transmission system

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4901307A (en) 1986-10-17 1990-02-13 Qualcomm, Inc. Spread spectrum multiple access communication system using satellite or terrestrial repeaters
US4888788A (en) 1986-11-20 1989-12-19 Matsushita Electric Industrial Co., Ltd. Transmitting and receiving systems
US4866395A (en) 1988-11-14 1989-09-12 Gte Government Systems Corporation Universal carrier recovery and data detection for digital communication systems
US5109390A (en) 1989-11-07 1992-04-28 Qualcomm Incorporated Diversity receiver in a cdma cellular telephone system
US5101501A (en) 1989-11-07 1992-03-31 Qualcomm Incorporated Method and system for providing a soft handoff in communications in a cdma cellular telephone system
US5103459B1 (en) 1990-06-25 1999-07-06 Qualcomm Inc System and method for generating signal waveforms in a cdma cellular telephone system
US5228056A (en) 1990-12-14 1993-07-13 Interdigital Technology Corporation Synchronous spread-spectrum communications system and method
US5166951A (en) 1991-05-15 1992-11-24 Scs Mobilecom, Inc. High capacity spread spectrum channel
US5267261A (en) 1992-03-05 1993-11-30 Qualcomm Incorporated Mobile station assisted soft handoff in a CDMA cellular communications system
US5311176A (en) 1992-03-31 1994-05-10 Motorola, Inc. Method and apparatus for generating Walsh codes
US5228054A (en) 1992-04-03 1993-07-13 Qualcomm Incorporated Power-of-two length pseudo-noise sequence generator with fast offset adjustment
US5442627A (en) 1993-06-24 1995-08-15 Qualcomm Incorporated Noncoherent receiver employing a dual-maxima metric generation process
US5442661A (en) 1993-08-13 1995-08-15 Motorola Inc. Path gain estimation in a receiver
US5450453A (en) 1994-09-28 1995-09-12 Motorola, Inc. Method, apparatus and system for decoding a non-coherently demodulated signal
US5729570A (en) * 1994-12-08 1998-03-17 Stanford Telecommunications, Inc. Orthogonal code division multiple access communication system having multicarrier modulation
US6240124B1 (en) * 1995-06-06 2001-05-29 Globalstar L.P. Closed loop power control for low earth orbit satellite communications system
US5835847A (en) * 1996-04-02 1998-11-10 Qualcomm Incorporated Pilot signal strength control for a low earth orbiting satellite communications system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996022661A2 (en) * 1995-01-04 1996-07-25 Qualcomm Incorporated Method and apparatus for using full spectrum transmitted power in a spread spectrum communication system for tracking individual recipient phase time and energy
EP0748062A2 (en) * 1995-06-06 1996-12-11 Globalstar L.P. Multiple satellite repeater capacity loading with multiple spread spectrum gateway antennas
EP0755127A2 (en) * 1995-07-19 1997-01-22 Nec Corporation CDMA diversity transmission system

Also Published As

Publication number Publication date
JP4162721B2 (en) 2008-10-08
HK1025689A1 (en) 2000-11-17
CN100391116C (en) 2008-05-28
KR20000075978A (en) 2000-12-26
JP2001514811A (en) 2001-09-11
AU6758398A (en) 1998-09-22
CN1252189A (en) 2000-05-03
KR100807993B1 (en) 2008-03-06
CA2283164C (en) 2009-02-24
ID24916A (en) 2000-08-31
WO1998039858A2 (en) 1998-09-11
BR9808170A (en) 2000-05-16
EP0965177B1 (en) 2004-08-11
DE69825567T2 (en) 2005-07-28
US6510172B1 (en) 2003-01-21
CA2283164A1 (en) 1998-09-11
RU2195771C2 (en) 2002-12-27
FI19991875A (en) 1999-11-04
DE69825567D1 (en) 2004-09-16
ATE273586T1 (en) 2004-08-15
EP0965177A2 (en) 1999-12-22

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