JP2632596B2 - スペクトル拡散チャネル装置および通信方法 - Google Patents

スペクトル拡散チャネル装置および通信方法

Info

Publication number
JP2632596B2
JP2632596B2 JP4507304A JP50730492A JP2632596B2 JP 2632596 B2 JP2632596 B2 JP 2632596B2 JP 4507304 A JP4507304 A JP 4507304A JP 50730492 A JP50730492 A JP 50730492A JP 2632596 B2 JP2632596 B2 JP 2632596B2
Authority
JP
Japan
Prior art keywords
data
code
received
spreading
orthogonal code
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.)
Expired - Lifetime
Application number
JP4507304A
Other languages
English (en)
Japanese (ja)
Other versions
JPH05506763A (ja
Inventor
ジェイ ブラッカート・ユージェン
ユウボグル・ベダト
ディ ファルコナー・デビッド
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.)
Motorola Solutions Inc
Original Assignee
Motorola Inc
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 Motorola Inc filed Critical Motorola Inc
Publication of JPH05506763A publication Critical patent/JPH05506763A/ja
Application granted granted Critical
Publication of JP2632596B2 publication Critical patent/JP2632596B2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • H04L1/0071—Use of interleaving
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
    • H03M13/27—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes using interleaving techniques
    • H03M13/2703—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes using interleaving techniques the interleaver involving at least two directions
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
    • H03M13/27—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes using interleaving techniques
    • H03M13/2732—Convolutional interleaver; Interleavers using shift-registers or delay lines like, e.g. Ramsey type interleaver
    • 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
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/0007—Code type
    • H04J13/004—Orthogonal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/16—Code allocation
    • H04J13/18—Allocation of orthogonal 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
    • H04L1/08—Arrangements for detecting or preventing errors in the information received by repeating transmission, e.g. Verdan system

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Probability & Statistics with Applications (AREA)
  • Theoretical Computer Science (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Exposure Of Semiconductors, Excluding Electron Or Ion Beam Exposure (AREA)
  • Exposure And Positioning Against Photoresist Photosensitive Materials (AREA)
  • X-Ray Techniques (AREA)
JP4507304A 1991-03-13 1992-02-13 スペクトル拡散チャネル装置および通信方法 Expired - Lifetime JP2632596B2 (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/669,127 US5204876A (en) 1991-03-13 1991-03-13 Method and apparatus for providing high data rate traffic channels in a spread spectrum communication system
US669,127 1991-03-13

Publications (2)

Publication Number Publication Date
JPH05506763A JPH05506763A (ja) 1993-09-30
JP2632596B2 true JP2632596B2 (ja) 1997-07-23

Family

ID=24685146

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4507304A Expired - Lifetime JP2632596B2 (ja) 1991-03-13 1992-02-13 スペクトル拡散チャネル装置および通信方法

Country Status (8)

Country Link
US (1) US5204876A (enExample)
EP (1) EP0529051B1 (enExample)
JP (1) JP2632596B2 (enExample)
KR (1) KR960000460B1 (enExample)
CA (1) CA2077343C (enExample)
DE (1) DE69230710T2 (enExample)
IL (1) IL101044A (enExample)
WO (1) WO1992017011A1 (enExample)

Families Citing this family (118)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7606575B2 (en) * 1988-08-04 2009-10-20 Broadcom Corporation Remote radio data communication system with data rate switching
US20010050943A1 (en) * 1989-08-03 2001-12-13 Mahany Ronald L. Radio frequency communication network having adaptive communication parameters
US5235614A (en) * 1991-03-13 1993-08-10 Motorola, Inc. Method and apparatus for accommodating a variable number of communication channels in a spread spectrum communication system
US5210770A (en) * 1991-09-27 1993-05-11 Lockheed Missiles & Space Company, Inc. Multiple-signal spread-spectrum transceiver
US5430759A (en) * 1992-08-20 1995-07-04 Nexus 1994 Limited Low-power frequency-hopped spread spectrum reverse paging system
US5335246A (en) * 1992-08-20 1994-08-02 Nexus Telecommunication Systems, Ltd. Pager with reverse paging facility
US5668795A (en) * 1992-11-24 1997-09-16 Stanford Telecommunications, Inc. Modulation system for spread spectrum CDMA communiction
US5341396A (en) * 1993-03-02 1994-08-23 The Boeing Company Multi-rate spread system
US7924783B1 (en) * 1994-05-06 2011-04-12 Broadcom Corporation Hierarchical communications system
US5442627A (en) * 1993-06-24 1995-08-15 Qualcomm Incorporated Noncoherent receiver employing a dual-maxima metric generation process
US5530452A (en) * 1993-10-21 1996-06-25 Nexus Telecommunication Systems Ltd. Method of synchronizing spread spectrum radio transmitters
JP2526510B2 (ja) * 1993-10-22 1996-08-21 日本電気株式会社 無線デ―タ通信装置
JP3091225B2 (ja) * 1993-11-01 2000-09-25 クゥアルコム・インコーポレイテッド 可変ディジタルデータを送信する方法及び装置
US5383219A (en) * 1993-11-22 1995-01-17 Qualcomm Incorporated Fast forward link power control in a code division multiple access system
US5454009A (en) * 1994-01-13 1995-09-26 Scientific-Atlanta, Inc. Method and apparatus for providing energy dispersal using frequency diversity in a satellite communications system
EP0745290A4 (en) 1994-02-17 1999-07-14 Micrilor Inc WIRELESS LOCAL NETWORK WITH HIGH DATA RATE
RU2129737C1 (ru) * 1994-02-17 1999-04-27 Моторола, Инк. Способ группового кодирования сигналов и устройство для осуществления способа
US5515396A (en) * 1994-02-25 1996-05-07 Motorola, Inc. Method and apparatus for selecting a spreading code in a spectrum spread communication system
GB2287379B (en) * 1994-03-10 1998-06-10 Roke Manor Research Apparatus for use in a mobile radio system
US5497395A (en) * 1994-04-04 1996-03-05 Qualcomm Incorporated Method and apparatus for modulating signal waveforms in a CDMA communication system
US5546420A (en) * 1994-04-29 1996-08-13 At&T Corp. Methods of and devices for enhancing communications that use spread spectrum technology by using variable code techniques
US5751739A (en) * 1994-04-29 1998-05-12 Lucent Technologies, Inc. Methods of and devices for enhancing communications that use spread spectrum technology
CA2145566C (en) * 1994-04-29 1999-12-28 Nambirajan Seshadri Methods of and devices for enhancing communications that use spread spectrum technology
US5603096A (en) * 1994-07-11 1997-02-11 Qualcomm Incorporated Reverse link, closed loop power control in a code division multiple access system
US5987014A (en) * 1994-07-14 1999-11-16 Stanford Telecommunications, Inc. Multipath resistant, orthogonal code-division multiple access system
US5822318A (en) * 1994-07-29 1998-10-13 Qualcomm Incorporated Method and apparatus for controlling power in a variable rate communication system
US5822359A (en) * 1994-10-17 1998-10-13 Motorola, Inc. Coherent random access channel in a spread-spectrum communication system and method
US5574721A (en) * 1994-12-09 1996-11-12 Stanford Telecommunications, Inc. Orthogonal code tracking system having phantom carrier signal
US5914943A (en) * 1994-12-28 1999-06-22 Ntt Mobile Communications Network, Inc. Apparatus and method for establishing acquisition of spreading code in CDMA transmission system
WO1996026582A1 (en) * 1995-02-23 1996-08-29 Ntt Mobile Communications Network Inc. Variable rate transmitting method, and transmitter and receiver using it
TW347616B (en) 1995-03-31 1998-12-11 Qualcomm Inc Method and apparatus for performing fast power control in a mobile communication system a method and apparatus for controlling transmission power in a mobile communication system is disclosed.
US6977967B1 (en) * 1995-03-31 2005-12-20 Qualcomm Incorporated Method and apparatus for performing fast power control in a mobile communication system
FI100569B (fi) * 1995-05-08 1997-12-31 Nokia Telecommunications Oy Menetelmä ja laitteisto muuttuvan siirtonopeuden koodausta ja ilmaisua varten monikäyttömatkaviestinjärjestelmässä
US5898710A (en) * 1995-06-06 1999-04-27 Globespan Technologies, Inc. Implied interleaving, a family of systematic interleavers and deinterleavers
US6816473B2 (en) 1995-06-30 2004-11-09 Interdigital Technology Corporation Method for adaptive forward power control for spread-spectrum communications
US6788662B2 (en) 1995-06-30 2004-09-07 Interdigital Technology Corporation Method for adaptive reverse power control for spread-spectrum communications
US6049535A (en) * 1996-06-27 2000-04-11 Interdigital Technology Corporation Code division multiple access (CDMA) communication system
US6885652B1 (en) 1995-06-30 2005-04-26 Interdigital Technology Corporation Code division multiple access (CDMA) communication system
US6697350B2 (en) 1995-06-30 2004-02-24 Interdigital Technology Corporation Adaptive vector correlator for spread-spectrum communications
US6940840B2 (en) 1995-06-30 2005-09-06 Interdigital Technology Corporation Apparatus for adaptive reverse power control for spread-spectrum communications
US7020111B2 (en) * 1996-06-27 2006-03-28 Interdigital Technology Corporation System for using rapid acquisition spreading codes for spread-spectrum communications
US7123600B2 (en) 1995-06-30 2006-10-17 Interdigital Technology Corporation Initial power control for spread-spectrum communications
US7072380B2 (en) * 1995-06-30 2006-07-04 Interdigital Technology Corporation Apparatus for initial power control for spread-spectrum communications
US7929498B2 (en) 1995-06-30 2011-04-19 Interdigital Technology Corporation Adaptive forward power control and adaptive reverse power control for spread-spectrum communications
US6831905B1 (en) 1995-06-30 2004-12-14 Interdigital Technology Corporation Spread spectrum system assigning information signals to message-code signals
ZA965340B (en) 1995-06-30 1997-01-27 Interdigital Tech Corp Code division multiple access (cdma) communication system
US6052408A (en) * 1995-09-06 2000-04-18 Aironet Wireless Communications, Inc. Cellular communication system with dynamically modified data transmission parameters
US6132306A (en) * 1995-09-06 2000-10-17 Cisco Systems, Inc. Cellular communication system with dedicated repeater channels
US6128512A (en) * 1995-09-06 2000-10-03 Cisco Systems, Inc. Cellular communication system with dedicated repeater channels
US5950124A (en) * 1995-09-06 1999-09-07 Telxon Corporation Cellular communication system with dynamically modified data transmission parameters
FI955113A7 (fi) * 1995-10-26 1997-04-27 Nokia Corp Tiedonsiirtomenetelmä, lähetin ja vastaanotin
US5781583A (en) * 1996-01-19 1998-07-14 Motorola, Inc. Method and system for communication over multiple channels in a spread spectrum communication system
CA2217575C (en) * 1996-03-05 2005-07-12 Ntt Mobile Communications Network Inc. Signal transmission method, transmitter, receiver, and spreading code sychronizing method in mobile communication system
JP3385299B2 (ja) * 1996-05-20 2003-03-10 三菱電機株式会社 スペクトル拡散通信装置
US6396804B2 (en) 1996-05-28 2002-05-28 Qualcomm Incorporated High data rate CDMA wireless communication system
US6678311B2 (en) 1996-05-28 2004-01-13 Qualcomm Incorporated High data CDMA wireless communication system using variable sized channel codes
US5930230A (en) 1996-05-28 1999-07-27 Qualcomm Incorporated High data rate CDMA wireless communication system
US5926500A (en) * 1996-05-28 1999-07-20 Qualcomm Incorporated Reduced peak-to-average transmit power high data rate CDMA wireless communication system
KR100498752B1 (ko) 1996-09-02 2005-11-08 소니 가부시끼 가이샤 비트메트릭스를 사용한 데이터 수신장치 및 방법
US5893035A (en) * 1996-09-16 1999-04-06 Qualcomm Incorporated Centralized forward link power control
US6154499A (en) * 1996-10-21 2000-11-28 Comsat Corporation Communication systems using nested coder and compatible channel coding
US5960361A (en) * 1996-10-22 1999-09-28 Qualcomm Incorporated Method and apparatus for performing a fast downward move in a cellular telephone forward link power control system
US6075974A (en) * 1996-11-20 2000-06-13 Qualcomm Inc. Method and apparatus for adjusting thresholds and measurements of received signals by anticipating power control commands yet to be executed
US5892774A (en) * 1996-12-12 1999-04-06 Qualcomm Incorporated Phase shift encoded subchannel
US6173007B1 (en) * 1997-01-15 2001-01-09 Qualcomm Inc. High-data-rate supplemental channel for CDMA telecommunications system
USRE39177E1 (en) * 1997-01-29 2006-07-11 Qualcomm, Inc. Method and apparatus for performing soft hand-off in a wireless communication system
US6151502A (en) * 1997-01-29 2000-11-21 Qualcomm Incorporated Method and apparatus for performing soft hand-off in a wireless communication system
US5933781A (en) * 1997-01-31 1999-08-03 Qualcomm Incorporated Pilot based, reversed channel power control
US5987326A (en) * 1997-02-11 1999-11-16 Qualcomm Incorporated Transmit power reduction for a high speed CDMA link in soft handoff
US5991284A (en) * 1997-02-13 1999-11-23 Qualcomm Inc. Subchannel control loop
CA2424556C (en) 1997-04-17 2009-11-24 Ntt Mobile Communications Network Inc. Base station apparatus of mobile communication system
US6396867B1 (en) * 1997-04-25 2002-05-28 Qualcomm Incorporated Method and apparatus for forward link power control
IL132456A (en) * 1997-05-14 2004-03-28 Qualcomm Inc Subscriber unit and method for use in a wireless communication system
WO1998052307A1 (en) 1997-05-16 1998-11-19 Ntt Mobile Communications Network Inc. Variable rate transmission and reception methods, and variable rate transmission and reception devices
CN1983838B (zh) 1997-06-17 2012-06-20 高通股份有限公司 产生高速信道的方法和系统
EP0918410A4 (en) 1997-06-20 2000-01-19 Mitsubishi Electric Corp METHOD AND DEVICE FOR TRANSMITTING AT VARIABLE SPEED
US5982760A (en) * 1997-06-20 1999-11-09 Qualcomm Inc. Method and apparatus for power adaptation control in closed-loop communications
US6426960B2 (en) 1997-06-24 2002-07-30 Qualcomm Incorporated Increased capacity data transmission in a CDMA wireless communication system
US6222875B1 (en) 1997-07-11 2001-04-24 Telefonaktiebolaget Lm Ericsson (Publ) Low-delay rate detection for variable rate communication systems
US6055428A (en) * 1997-07-21 2000-04-25 Qualcomm Incorporated Method and apparatus for performing soft hand-off in a wireless communication system
KR100387078B1 (ko) * 1997-07-30 2003-10-22 삼성전자주식회사 대역확산통신시스템의심볼천공및복구장치및방법
US6188678B1 (en) 1997-08-07 2001-02-13 Qualcomm Inc. Method and apparatus for adaptive closed loop power control using open loop measurements
US6147981A (en) * 1997-08-07 2000-11-14 Qualcomm Incorporated Method and apparatus for predictive parameter control with loop delay
US6070085A (en) 1997-08-12 2000-05-30 Qualcomm Inc. Method and apparatus for controlling transmit power thresholds based on classification of wireless communication subscribers
US6097972A (en) * 1997-08-29 2000-08-01 Qualcomm Incorporated Method and apparatus for processing power control signals in CDMA mobile telephone system
US6574211B2 (en) * 1997-11-03 2003-06-03 Qualcomm Incorporated Method and apparatus for high rate packet data transmission
US7184426B2 (en) * 2002-12-12 2007-02-27 Qualcomm, Incorporated Method and apparatus for burst pilot for a time division multiplex system
US9118387B2 (en) * 1997-11-03 2015-08-25 Qualcomm Incorporated Pilot reference transmission for a wireless communication system
KR100269593B1 (ko) 1997-12-02 2000-10-16 정선종 다중 채널을 위한 직교 복소 확산 방법 및 그 장치
KR100381012B1 (ko) 1998-05-04 2003-08-19 한국전자통신연구원 부호분할 다중접속 방식에서 상향 공통 채널의 임의 접속 장치및 방법
US6724741B1 (en) 1998-06-29 2004-04-20 L-3 Communications Corporation PN code selection for synchronous CDMA
US6091760A (en) * 1998-06-29 2000-07-18 L-3 Communications Corporation Non-recursively generated orthogonal PN codes for variable rate CDMA
GB9814960D0 (en) * 1998-07-10 1998-09-09 Koninkl Philips Electronics Nv Coding device and communication system using the same
EP0982892A3 (en) * 1998-08-27 2002-04-24 Alantro Communications Inc. Packet-based binary convolutional codes
US6823488B1 (en) 1998-08-27 2004-11-23 Texas Instruments Incorporated Packet binary convolutional codes
KR20000019059A (ko) * 1998-09-08 2000-04-06 윤종용 무선 가입자망 시스템에서 데이터 전송방식에 따른 자원할당및 해제방법
US6690652B1 (en) * 1998-10-26 2004-02-10 International Business Machines Corporation Adaptive power control in wideband CDMA cellular systems (WCDMA) and methods of operation
US6249683B1 (en) 1999-04-08 2001-06-19 Qualcomm Incorporated Forward link power control of multiple data streams transmitted to a mobile station using a common power control channel
US6690938B1 (en) 1999-05-06 2004-02-10 Qualcomm Incorporated System and method for reducing dropped calls in a wireless communications network
US7443906B1 (en) 1999-05-31 2008-10-28 Electronics And Telecommunications Research Institute Apparatus and method for modulating data message by employing orthogonal variable spreading factor (OVSF) codes in mobile communication system
US6744808B1 (en) * 1999-06-03 2004-06-01 Skyworks Solutions, Inc. Techniques to increase data transmission rate of spread spectrum communications systems
US8064409B1 (en) 1999-08-25 2011-11-22 Qualcomm Incorporated Method and apparatus using a multi-carrier forward link in a wireless communication system
US6621804B1 (en) * 1999-10-07 2003-09-16 Qualcomm Incorporated Method and apparatus for predicting favored supplemental channel transmission slots using transmission power measurements of a fundamental channel
CN1138354C (zh) * 1999-11-11 2004-02-11 华为技术有限公司 码分多址技术和变速率图像压缩编码技术相结合的传输方法
WO2001071963A2 (en) * 2000-03-21 2001-09-27 Texas Instruments Santa Rosa Incorporated Coding and spreading technique for communications systems
US6952439B1 (en) * 2000-10-13 2005-10-04 The Titan Corporation System for, and method of, transmitting data from a transmitter to a receiver and recovering the data at the receiver
US6973098B1 (en) * 2000-10-25 2005-12-06 Qualcomm, Incorporated Method and apparatus for determining a data rate in a high rate packet data wireless communications system
US7068683B1 (en) 2000-10-25 2006-06-27 Qualcomm, Incorporated Method and apparatus for high rate packet data and low delay data transmissions
US7103026B2 (en) * 2000-10-27 2006-09-05 L-3 Communications Corporation Use of chip repetition to produce a flexible bandwidth DS-CDMA system
US8199696B2 (en) * 2001-03-29 2012-06-12 Qualcomm Incorporated Method and apparatus for power control in a wireless communication system
JP4718708B2 (ja) * 2001-04-06 2011-07-06 富士通株式会社 ウォルシュコードの割当方法および割当装置
TWI260171B (en) 2001-04-16 2006-08-11 Interdigital Tech Corp Physical layer processing for a wireless communication system using code division multiple access
US6996230B1 (en) 2003-06-13 2006-02-07 Adtran, Inc. Echo-canceler for precoded fractionally spaced receiver using signal estimator
KR100918763B1 (ko) * 2003-11-14 2009-09-24 삼성전자주식회사 병렬 연접 저밀도 패리티 검사 부호를 사용하는 채널 부호화/복호 장치 및 방법
US7720134B2 (en) * 2004-05-10 2010-05-18 Stmicroelectronics S.R.L. Frequency-domain multi-user access interference cancellation and nonlinear equalization in CDMA receivers
US8811200B2 (en) * 2009-09-22 2014-08-19 Qualcomm Incorporated Physical layer metrics to support adaptive station-dependent channel state information feedback rate in multi-user communication systems
US10742353B2 (en) * 2018-04-09 2020-08-11 Qualcomm Incorporated Cross-correlation reduction for control signals
CN111565161B (zh) * 2020-04-28 2022-05-27 北京升哲科技有限公司 一种基带发射机、基带接收机、调制解调系统和终端

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4547887A (en) * 1983-11-30 1985-10-15 The United States Of America As Represented By The Secretary Of The Army Pseudo-random convolutional interleaving
US4607375A (en) * 1984-10-17 1986-08-19 Itt Corporation Covert communication system
JPH0750883B2 (ja) * 1985-09-18 1995-05-31 セイコーエプソン株式会社 ペ−ジヤ
US4724435A (en) * 1985-11-06 1988-02-09 Applied Spectrum Technologies, Inc. Bi-directional data telemetry system
US4901307A (en) * 1986-10-17 1990-02-13 Qualcomm, Inc. Spread spectrum multiple access communication system using satellite or terrestrial repeaters
JPS63156446A (ja) * 1986-12-19 1988-06-29 Fujitsu Ltd パンクチヤド符号化回路
US4914699A (en) * 1988-10-11 1990-04-03 Itt Corporation High frequency anti-jam communication system terminal
US5016255A (en) * 1989-08-07 1991-05-14 Omnipoint Data Company, Incorporated Asymmetric spread spectrum correlator

Also Published As

Publication number Publication date
EP0529051A1 (en) 1993-03-03
JPH05506763A (ja) 1993-09-30
US5204876A (en) 1993-04-20
WO1992017011A1 (en) 1992-10-01
CA2077343C (en) 1998-08-18
DE69230710D1 (de) 2000-04-06
KR960000460B1 (ko) 1996-01-06
IL101044A (en) 1995-05-26
EP0529051A4 (enExample) 1994-12-14
EP0529051B1 (en) 2000-03-01
DE69230710T2 (de) 2000-12-28
CA2077343A1 (en) 1992-09-14
IL101044A0 (en) 1992-11-15

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