DK1269646T3 - Tilbagegående forbindelseskorrelationsfilter i trådlöse flerhastigheds-CDMA-kommunikationssystemer - Google Patents

Tilbagegående forbindelseskorrelationsfilter i trådlöse flerhastigheds-CDMA-kommunikationssystemer

Info

Publication number
DK1269646T3
DK1269646T3 DK01911096T DK01911096T DK1269646T3 DK 1269646 T3 DK1269646 T3 DK 1269646T3 DK 01911096 T DK01911096 T DK 01911096T DK 01911096 T DK01911096 T DK 01911096T DK 1269646 T3 DK1269646 T3 DK 1269646T3
Authority
DK
Denmark
Prior art keywords
tier
correlation filter
rate
wireless system
information
Prior art date
Application number
DK01911096T
Other languages
English (en)
Inventor
Samir K Patel
Daniel L Riley
James A Proctor Jr
Antoine J Rouphael
John E Hoffmann
George Rodney Nelson Jr
Original Assignee
Ipr Licensing 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 Ipr Licensing Inc filed Critical Ipr Licensing Inc
Application granted granted Critical
Publication of DK1269646T3 publication Critical patent/DK1269646T3/da

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details 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
    • H04B1/69Spread spectrum techniques
    • H04B1/707Spread spectrum techniques using direct sequence modulation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details 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
    • H04B1/69Spread spectrum techniques
    • H04B1/707Spread spectrum techniques using direct sequence modulation
    • H04B1/7097Interference-related aspects
    • H04B1/7103Interference-related aspects the interference being multiple access interference
    • H04B1/7105Joint detection techniques, e.g. linear detectors
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details 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
    • H04B1/69Spread spectrum techniques
    • H04B1/707Spread spectrum techniques using direct sequence modulation
    • H04B1/7097Interference-related aspects
    • H04B1/711Interference-related aspects the interference being multi-path interference
    • H04B1/7115Constructive combining of multi-path signals, i.e. RAKE receivers
    • H04B1/712Weighting of fingers for combining, e.g. amplitude control or phase rotation using an inner loop
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B2201/00Indexing scheme relating to details of transmission systems not covered by a single group of H04B3/00 - H04B13/00
    • H04B2201/69Orthogonal indexing scheme relating to spread spectrum techniques in general
    • H04B2201/707Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation
    • H04B2201/70703Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation using multiple or variable rates
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B2201/00Indexing scheme relating to details of transmission systems not covered by a single group of H04B3/00 - H04B13/00
    • H04B2201/69Orthogonal indexing scheme relating to spread spectrum techniques in general
    • H04B2201/707Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation
    • H04B2201/70703Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation using multiple or variable rates
    • H04B2201/70705Rate detection
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B2201/00Indexing scheme relating to details of transmission systems not covered by a single group of H04B3/00 - H04B13/00
    • H04B2201/69Orthogonal indexing scheme relating to spread spectrum techniques in general
    • H04B2201/707Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation
    • H04B2201/70707Efficiency-related aspects
    • H04B2201/7071Efficiency-related aspects with dynamic control of receiver resources

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Noise Elimination (AREA)
  • Networks Using Active Elements (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
DK01911096T 2000-02-23 2001-02-23 Tilbagegående forbindelseskorrelationsfilter i trådlöse flerhastigheds-CDMA-kommunikationssystemer DK1269646T3 (da)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US18436400P 2000-02-23 2000-02-23
US09/738,934 US6801564B2 (en) 2000-02-23 2000-12-15 Reverse link correlation filter in wireless communication systems

Publications (1)

Publication Number Publication Date
DK1269646T3 true DK1269646T3 (da) 2006-08-14

Family

ID=26880069

Family Applications (1)

Application Number Title Priority Date Filing Date
DK01911096T DK1269646T3 (da) 2000-02-23 2001-02-23 Tilbagegående forbindelseskorrelationsfilter i trådlöse flerhastigheds-CDMA-kommunikationssystemer

Country Status (12)

Country Link
US (3) US6801564B2 (da)
EP (3) EP2088683A1 (da)
JP (1) JP2004500768A (da)
KR (4) KR20090073258A (da)
CN (1) CN1227828C (da)
AT (2) ATE323344T1 (da)
AU (1) AU2001238632A1 (da)
CA (1) CA2400934C (da)
DE (2) DE60138496D1 (da)
DK (1) DK1269646T3 (da)
HK (1) HK1052802B (da)
WO (1) WO2001063778A2 (da)

Families Citing this family (56)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7079523B2 (en) * 2000-02-07 2006-07-18 Ipr Licensing, Inc. Maintenance link using active/standby request channels
US8175120B2 (en) 2000-02-07 2012-05-08 Ipr Licensing, Inc. Minimal maintenance link to support synchronization
US7936728B2 (en) 1997-12-17 2011-05-03 Tantivy Communications, Inc. System and method for maintaining timing of synchronization messages over a reverse link of a CDMA wireless communication system
US6222832B1 (en) 1998-06-01 2001-04-24 Tantivy Communications, Inc. Fast Acquisition of traffic channels for a highly variable data rate reverse link of a CDMA wireless communication system
US9525923B2 (en) 1997-12-17 2016-12-20 Intel Corporation Multi-detection of heartbeat to reduce error probability
US7394791B2 (en) 1997-12-17 2008-07-01 Interdigital Technology Corporation Multi-detection of heartbeat to reduce error probability
US7773566B2 (en) 1998-06-01 2010-08-10 Tantivy Communications, Inc. System and method for maintaining timing of synchronization messages over a reverse link of a CDMA wireless communication system
US8134980B2 (en) 1998-06-01 2012-03-13 Ipr Licensing, Inc. Transmittal of heartbeat signal at a lower level than heartbeat request
US6904079B2 (en) * 2000-02-08 2005-06-07 Ipr Licensing, Inc. Access channel structure for wireless communication system
US8537656B2 (en) 2000-07-19 2013-09-17 Ipr Licensing, Inc. Method for compensating for multi-path of a CDMA reverse link utilizing an orthogonal channel structure
US7911993B2 (en) * 2000-07-19 2011-03-22 Ipr Licensing, Inc. Method and apparatus for allowing soft handoff of a CDMA reverse link utilizing an orthogonal channel structure
JP4523708B2 (ja) * 2000-09-05 2010-08-11 株式会社日立国際電気 Cdma基地局装置
US8155096B1 (en) 2000-12-01 2012-04-10 Ipr Licensing Inc. Antenna control system and method
US7551663B1 (en) 2001-02-01 2009-06-23 Ipr Licensing, Inc. Use of correlation combination to achieve channel detection
US6954448B2 (en) 2001-02-01 2005-10-11 Ipr Licensing, Inc. Alternate channel for carrying selected message types
US7218623B1 (en) 2001-05-04 2007-05-15 Ipr Licensing, Inc. Coded reverse link messages for closed-loop power control of forward link control messages
ES2624979T3 (es) 2001-06-13 2017-07-18 Intel Corporation Aparatos para la transmisión de una señal de latido de corazón a un nivel inferior que la solicitud de latido de corazón
US6917581B2 (en) 2001-07-17 2005-07-12 Ipr Licensing, Inc. Use of orthogonal or near orthogonal codes in reverse link
DE60134027D1 (de) * 2001-10-23 2008-06-26 Texas Instruments Inc Drahtloses Kommunikationssystem mit prozessorgesteuerten Rakefingeraufgaben
EP1446893B1 (en) * 2001-11-20 2009-01-07 MediaTek Inc. Methods and apparatus for spread spectrum signal processing using a reconfigurable coprocessor
US7027492B2 (en) * 2002-05-01 2006-04-11 Texas Instruments Incorporated Wireless communication system with processor requested RAKE finger tasks
US7139274B2 (en) 2002-08-23 2006-11-21 Qualcomm, Incorporated Method and system for a data transmission in a communication system
US7206831B1 (en) * 2002-08-26 2007-04-17 Finisar Corporation On card programmable filtering and searching for captured network data
US7042857B2 (en) 2002-10-29 2006-05-09 Qualcom, Incorporated Uplink pilot and signaling transmission in wireless communication systems
US7180963B2 (en) * 2002-11-25 2007-02-20 Ali Corporation Digital receiver capable of processing modulated signals at various data rates
US8179833B2 (en) 2002-12-06 2012-05-15 Qualcomm Incorporated Hybrid TDM/OFDM/CDM reverse link transmission
US7177297B2 (en) * 2003-05-12 2007-02-13 Qualcomm Incorporated Fast frequency hopping with a code division multiplexed pilot in an OFDMA system
DE10322943B4 (de) * 2003-05-21 2005-10-06 Infineon Technologies Ag Hardware-Vorrichtung zur Aufbereitung von Pilotsymbolen für eine Kanalschätzung mittels adaptiver Tiefpassfilterung
US8611283B2 (en) 2004-01-28 2013-12-17 Qualcomm Incorporated Method and apparatus of using a single channel to provide acknowledgement and assignment messages
GB0410617D0 (en) * 2004-05-12 2004-06-16 Ttp Communications Ltd Path searching
US8891349B2 (en) 2004-07-23 2014-11-18 Qualcomm Incorporated Method of optimizing portions of a frame
US7453849B2 (en) * 2004-12-22 2008-11-18 Qualcomm Incorporated Method of implicit deassignment of resources
US8831115B2 (en) 2004-12-22 2014-09-09 Qualcomm Incorporated MC-CDMA multiplexing in an orthogonal uplink
US8238923B2 (en) 2004-12-22 2012-08-07 Qualcomm Incorporated Method of using shared resources in a communication system
US20060269024A1 (en) * 2005-05-27 2006-11-30 Francis Dominique Initial multi-path acquisition of random access channels
US7764656B2 (en) * 2005-07-13 2010-07-27 Alcatel-Lucent Usa Inc. Methods of multipath acquisition for dedicated traffic channels
US7929499B2 (en) * 2005-07-13 2011-04-19 Alcatel-Lucent Usa Inc. Methods of multipath acquisition for dedicated traffic channels
US7856071B2 (en) * 2005-07-26 2010-12-21 Alcatel-Lucent Usa Inc. Multi-path acquisition in the presence of very high data rate users
FI20055483A0 (fi) * 2005-09-08 2005-09-08 Nokia Corp Datasiirtojärjestelmä langattomassa tietoliikennejärjestelmässä
WO2007037630A1 (en) * 2005-09-28 2007-04-05 Samsung Electronics Co., Ltd. Method for maximal ratio combining of spatially filtered signals and apparatus therefor
KR101292814B1 (ko) * 2005-09-28 2013-08-02 한국전자통신연구원 공간 필터링된 수신 신호들의 최고 비율 조합 방법 및 이를위한 장치
KR100728221B1 (ko) * 2005-12-08 2007-06-13 한국전자통신연구원 터보부호 ofdm 시스템용 반복적 잔류 주파수 위상 보정장치 및 그 방법
JP2007166350A (ja) * 2005-12-15 2007-06-28 Agilent Technol Inc ゲートアレイプログラム装置、測定装置、プログラム
US20070213941A1 (en) * 2006-03-13 2007-09-13 Levy Schmuel Techniques to reduce power consumption in mobile devices
CN100555893C (zh) * 2006-04-30 2009-10-28 鼎桥通信技术有限公司 导频序列生成方法、装置及小区初始搜索方法和系统
CN101202583B (zh) * 2006-12-13 2012-07-04 中兴通讯股份有限公司 一种通信系统中前向数据速率的生成方法
EP1983656A1 (en) * 2007-04-19 2008-10-22 MediaTek Inc. Shared filter design for pilot symbol averaging in rake fingers in WCDMA systems
EP2031760B1 (en) * 2007-08-31 2014-02-26 Mitsubishi Electric R&D Centre Europe B.V. Method for estimating, in a communication system, the level of interference plus noise affecting received signals representative of a set of received pilot symbols
JP2010011061A (ja) * 2008-06-26 2010-01-14 Nippon Soken Inc 無線通信システム
EP2315045B1 (de) * 2009-10-22 2012-08-01 Sick Ag Messung von Entfernungen oder Entfernungsänderungen
US20110098880A1 (en) * 2009-10-23 2011-04-28 Basir Otman A Reduced transmission of vehicle operating data
US9361706B2 (en) * 2009-11-30 2016-06-07 Brigham Young University Real-time optical flow sensor design and its application to obstacle detection
CN102916736B (zh) * 2012-10-12 2016-01-20 广州海格通信集团股份有限公司 无线通信系统的无线电监测方法和装置
US9614558B2 (en) * 2015-03-26 2017-04-04 Vt Idirect, Inc. Apparatus and method for phase unwrapping of a burst signal
US9554506B2 (en) * 2015-04-27 2017-01-31 Cnh Industrial America Llc Fluid flow monitoring and control system for an agricultural sprayer
DE102018206137A1 (de) * 2018-04-20 2019-10-24 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Paket-Korrelator für ein Funkübertragungssystem

Family Cites Families (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4675839A (en) 1985-04-10 1987-06-23 Allied Corporation Receiver for a spread spectrum communication system having a time-multiplexed convolver
FR2629931B1 (fr) 1988-04-08 1991-01-25 Lmt Radio Professionelle Correlateur numerique asynchrone et demodulateurs comportant un tel correlateur
US5237586A (en) * 1992-03-25 1993-08-17 Ericsson-Ge Mobile Communications Holding, Inc. Rake receiver with selective ray combining
KR950003668B1 (ko) * 1992-04-29 1995-04-17 삼성전자 주식회사 중첩변조신호의 차 최적수신장치
US5329547A (en) 1993-03-11 1994-07-12 Motorola, Inc. Method and apparatus for coherent communication in a spread-spectrum communication system
US5442625A (en) * 1994-05-13 1995-08-15 At&T Ipm Corp Code division multiple access system providing variable data rate access to a user
US5659573A (en) * 1994-10-04 1997-08-19 Motorola, Inc. Method and apparatus for coherent reception in a spread-spectrum receiver
US5619524A (en) 1994-10-04 1997-04-08 Motorola, Inc. Method and apparatus for coherent communication reception in a spread-spectrum communication system
US5513216A (en) 1994-10-13 1996-04-30 At&T Corp. Hybrid equalizer arrangement for use in data communications equipment
US5671221A (en) * 1995-06-14 1997-09-23 Sharp Microelectronics Technology, Inc. Receiving method and apparatus for use in a spread-spectrum communication system
KR0142497B1 (ko) 1995-06-23 1998-08-01 양승택 역방향 링크에 버스트 파일럿을 갖는 채널구조
ZA965340B (en) 1995-06-30 1997-01-27 Interdigital Tech Corp Code division multiple access (cdma) communication system
CA2186793C (en) 1995-11-13 2000-12-19 Vijitha Weerackody Method and apparatus to implement antenna diversity for direct sequence spread spectrum receivers
US5799011A (en) * 1996-03-29 1998-08-25 Motorola, Inc. CDMA power control channel estimation using dynamic coefficient scaling
JPH09307477A (ja) * 1996-05-16 1997-11-28 Pfu Ltd スペクトラム拡散通信機
US6061359A (en) * 1996-08-02 2000-05-09 Golden Bridge Technology, Inc. Increased-capacity, packet spread-spectrum system and method
US6005887A (en) 1996-11-14 1999-12-21 Ericcsson, Inc. Despreading of direct sequence spread spectrum communications signals
JP3462034B2 (ja) * 1997-02-27 2003-11-05 株式会社日立国際電気 Cdma受信機
US5946344A (en) 1997-04-07 1999-08-31 Intermec Ip Corp. Multiple-rate direct sequence architecture utilizing a fixed chipping rate and variable spreading code lengths
WO1998047253A1 (en) * 1997-04-16 1998-10-22 Ntt Mobile Communications Network Inc. Cdma communication method
JP2924864B2 (ja) * 1997-06-16 1999-07-26 日本電気株式会社 適応レイク受信方式
US6222875B1 (en) * 1997-07-11 2001-04-24 Telefonaktiebolaget Lm Ericsson (Publ) Low-delay rate detection for variable rate communication systems
JP3305639B2 (ja) * 1997-12-24 2002-07-24 株式会社エヌ・ティ・ティ・ドコモ 直接拡散cdma伝送方式におけるrake受信機
US6215813B1 (en) * 1997-12-31 2001-04-10 Sony Corporation Method and apparatus for encoding trellis coded direct sequence spread spectrum communication signals
US6233271B1 (en) * 1997-12-31 2001-05-15 Sony Corporation Method and apparatus for decoding trellis coded direct sequence spread spectrum communication signals
US6125136A (en) * 1997-12-31 2000-09-26 Sony Corporation Method and apparatus for demodulating trellis coded direct sequence spread spectrum communication signals
US6160803A (en) * 1998-01-12 2000-12-12 Golden Bridge Technology, Inc. High processing gain spread spectrum TDMA system and method
JPH11298401A (ja) * 1998-04-14 1999-10-29 Matsushita Electric Ind Co Ltd 同期処理装置及び同期処理方法
JP3420700B2 (ja) * 1998-05-07 2003-06-30 株式会社東芝 スペクトル拡散信号の符号同期捕捉回路
US6229842B1 (en) * 1998-07-16 2001-05-08 Telefonaktiebolaget Lm Ericsson (Publ) Adaptive path selection threshold setting for DS-CDMA receivers
US6331998B1 (en) * 1998-08-28 2001-12-18 Industrial Technology Research Institute Partially matched filter for spread spectrum communication
US6456647B1 (en) * 1998-12-16 2002-09-24 Lsi Logic Corporation Two step signal recovery scheme for a receiver
JP2000341173A (ja) * 1999-03-23 2000-12-08 Matsushita Electric Ind Co Ltd 無線受信装置及び無線受信方法
EP1039653A3 (en) 1999-03-23 2001-05-09 Matsushita Electric Industrial Co., Ltd. Apparatus and method for receiving and despreading DS-CDMA signals
DE69933371T2 (de) * 1999-06-24 2007-01-11 Alcatel Empfänger und Verfahren mit verbesserter Leistung für CDMA Übertragung
ES2162512T3 (es) * 1999-06-24 2001-12-16 Cit Alcatel Receptor y metodo para transmision cdma con buscador de caminos mejorado.
US6301291B1 (en) 2000-02-03 2001-10-09 Tantivy Communications, Inc. Pilot symbol assisted modulation and demodulation in wireless communication systems
US6532251B1 (en) * 2001-08-16 2003-03-11 Motorola, Inc. Data message bit synchronization and local time correction methods and architectures
US6775319B2 (en) * 2001-08-16 2004-08-10 Motorola, Inc. Spread spectrum receiver architectures and methods therefor

Also Published As

Publication number Publication date
WO2001063778A3 (en) 2002-05-30
US7272169B2 (en) 2007-09-18
CN1421072A (zh) 2003-05-28
EP1686697B8 (en) 2009-07-01
EP1686697A3 (en) 2006-08-16
KR100983849B1 (ko) 2010-09-27
KR20080047626A (ko) 2008-05-29
DE60118715T2 (de) 2007-04-19
WO2001063778A2 (en) 2001-08-30
US20010030990A1 (en) 2001-10-18
US20080075150A1 (en) 2008-03-27
DE60118715D1 (de) 2006-05-24
AU2001238632A1 (en) 2001-09-03
US20050041726A1 (en) 2005-02-24
KR100972804B1 (ko) 2010-07-29
EP1686697B1 (en) 2009-04-22
ATE429738T1 (de) 2009-05-15
EP2088683A1 (en) 2009-08-12
WO2001063778A9 (en) 2002-10-24
US6801564B2 (en) 2004-10-05
CN1227828C (zh) 2005-11-16
US7613227B2 (en) 2009-11-03
EP1269646A2 (en) 2003-01-02
EP1269646B1 (en) 2006-04-12
KR20090005243A (ko) 2009-01-12
KR100845479B1 (ko) 2008-07-10
CA2400934C (en) 2011-04-05
EP1686697A2 (en) 2006-08-02
CA2400934A1 (en) 2001-08-30
HK1052802B (en) 2006-10-06
DE60138496D1 (de) 2009-06-04
KR20020086576A (ko) 2002-11-18
HK1052802A1 (en) 2003-09-26
JP2004500768A (ja) 2004-01-08
KR20090073258A (ko) 2009-07-02
ATE323344T1 (de) 2006-04-15

Similar Documents

Publication Publication Date Title
DK1269646T3 (da) Tilbagegående forbindelseskorrelationsfilter i trådlöse flerhastigheds-CDMA-kommunikationssystemer
DE60126368D1 (de) Geteilte Kanalstruktur, Systeme und Verfahren
WO2004082165A3 (en) Systems and methods for using code space in spread-spectrum communications network.
SE0202405L (sv) Förfarande för sändning och mottagning av information rörande koder med ortogonala variabla spridningsfaktorer som användardata tilldelas i ett höghastighetsdatapaketkommunikationssystem
BR0009711A (pt) Método e aparelho para produzir uma estimativa de canal de um canal de comunicação em um sistema de comunicação cdma
DE60039342D1 (de) CDMA Kodierer-Dekodierer, CDMA Nachrichtenübertragungssystem, WDM-CDMA Nachrichtenübertragungssystem
NO20033604L (no) Regulering av sendereffekt i flere kanaler i et datakommunikasjonsnett forCDMA
FI20001304L (fi) Monireittinen hajaspektridemodulaattori monikanavaiseen tietoliikennejärjestelmään
DK1156593T3 (da) Code division multiple access (CDMA)-kommunikationssystem
BR9812033A (pt) Formato para uma transmissão de código de sincronização de ligação inferior de acesso múltiplo por divisão de código, e, sistema de comunicação de acesso múltiplo por divisão de código
AU9255801A (en) Optical transmission systems including optical protection systems, apparatuses, and methods
BRPI0415005A (pt) sistemas e métodos para multiplexação de dados de controle para múltiplos canais de dados em um único canal de controle
EP0803992A3 (en) Method and apparatus for switching code division multiple access modulated beams
CA2319811A1 (en) Device and method for spreading channels in mobile communication system
ATE317608T1 (de) Verkettete kode für spreizspektrumübertragung
BR0010635A (pt) Método de envio de dados em um sistema de comunicação de acesso múltiplo por divisão de código de espectro de difusão, estação base para um sistema de acesso múltiplo por divisão de código de espectro de difusão, e, sistema de comunicação de acesso múltiplo por divisão de código de espectro de difusão
RU2214681C2 (ru) Способ формирования комплексного квазиортогонального кода и устройство и способ для расширения канальных данных с использованием квазиортогонального кода в системе связи мдкр
DK1338170T3 (da) System og fremgangsmåde til styring af konfliktende tilgang
CA2338057A1 (en) Spreader for multiple data rates
WO2004023692A3 (en) Code channel allocations in a wireless communications system
DE602004026339D1 (de) Datendemodulation für ein cdma-kommunikationssystem
ATE447154T1 (de) Querstrom-wärmetausch
ATE324712T1 (de) Asymmetrische auf- und abwärtsübertragungsbandbreite in einem cdma- system
WO2002033865A3 (en) Free-space and integrated add-drop optical modules for optical wavelength-division multiplexed systems
RU2008106438A (ru) Асимметричный режим работы в системах связи с множеством несущих