[go: up one dir, main page]

SG108240A1 - Multi-carrier cdma radio transmitting method and apparatus, and channel estimation method and apparatus for multi-carrier cdma radio transmitting system - Google Patents

Multi-carrier cdma radio transmitting method and apparatus, and channel estimation method and apparatus for multi-carrier cdma radio transmitting system

Info

Publication number
SG108240A1
SG108240A1 SG200100671A SG200100671A SG108240A1 SG 108240 A1 SG108240 A1 SG 108240A1 SG 200100671 A SG200100671 A SG 200100671A SG 200100671 A SG200100671 A SG 200100671A SG 108240 A1 SG108240 A1 SG 108240A1
Authority
SG
Singapore
Prior art keywords
radio transmitting
cdma radio
carrier cdma
channel estimation
estimation method
Prior art date
Application number
SG200100671A
Other languages
English (en)
Inventor
Abeta Sadayuki
Atarashi Hiroyuki
Sawahashi Mamoru
Original Assignee
Ntt Docomo 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
Priority claimed from JP2000046624A external-priority patent/JP3631086B2/ja
Priority claimed from JP2000081050A external-priority patent/JP3568873B2/ja
Application filed by Ntt Docomo Inc filed Critical Ntt Docomo Inc
Publication of SG108240A1 publication Critical patent/SG108240A1/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/0224—Channel estimation using sounding signals
    • H04L25/0228—Channel estimation using sounding signals with direct estimation from sounding signals
    • H04L25/023—Channel estimation using sounding signals with direct estimation from sounding signals with extension to other symbols
    • H04L25/0232—Channel estimation using sounding signals with direct estimation from sounding signals with extension to other symbols by interpolation between sounding signals
    • 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]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/02—Channels characterised by the type of signal
    • H04L5/023—Multiplexing of multicarrier modulation signals, e.g. multi-user orthogonal frequency division multiple access [OFDMA]
    • H04L5/026—Multiplexing of multicarrier modulation signals, e.g. multi-user orthogonal frequency division multiple access [OFDMA] using code division

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Power Engineering (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Transmitters (AREA)
SG200100671A 2000-02-23 2001-02-07 Multi-carrier cdma radio transmitting method and apparatus, and channel estimation method and apparatus for multi-carrier cdma radio transmitting system SG108240A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2000046624A JP3631086B2 (ja) 2000-02-23 2000-02-23 マルチキャリアｃｄｍａ無線伝送方法及び装置
JP2000081050A JP3568873B2 (ja) 2000-03-22 2000-03-22 マルチキャリア無線伝送システムにおけるチャネル推定方法及び装置

Publications (1)

Publication Number Publication Date
SG108240A1 true SG108240A1 (en) 2005-01-28

Family

ID=26585939

Family Applications (1)

Application Number Title Priority Date Filing Date
SG200100671A SG108240A1 (en) 2000-02-23 2001-02-07 Multi-carrier cdma radio transmitting method and apparatus, and channel estimation method and apparatus for multi-carrier cdma radio transmitting system

Country Status (7)

Country Link
US (2) US7457324B2 (zh)
EP (1) EP1128592A3 (zh)
KR (1) KR100408570B1 (zh)
CN (2) CN1198417C (zh)
AU (1) AU754268B2 (zh)
CA (1) CA2335225C (zh)
SG (1) SG108240A1 (zh)

Families Citing this family (68)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6487181B1 (en) * 1998-11-30 2002-11-26 Motorola, Inc. Method and apparatus for transmitting and receiving information in a time slot
US6952454B1 (en) 2000-03-22 2005-10-04 Qualcomm, Incorporated Multiplexing of real time services and non-real time services for OFDM systems
US7164696B2 (en) * 2000-07-26 2007-01-16 Mitsubishi Denki Kabushiki Kaisha Multi-carrier CDMA communication device, multi-carrier CDMA transmitting device, and multi-carrier CDMA receiving device
US7065146B1 (en) 2002-02-15 2006-06-20 Marvell International Ltd. Method and apparatus for equalization and decoding in a wireless communications system including plural receiver antennae
JP4323103B2 (ja) 2001-02-20 2009-09-02 三菱電機株式会社 移動体通信システム、マルチキャリアｃｄｍａ送信装置およびマルチキャリアｃｄｍａ受信装置
JP3989688B2 (ja) * 2001-02-26 2007-10-10 クラリオン株式会社 無線通信ネットワークシステム
JP2002290367A (ja) * 2001-03-26 2002-10-04 Hitachi Kokusai Electric Inc 帯域分割復調方法及びｏｆｄｍ受信機
US7035201B2 (en) * 2001-04-20 2006-04-25 Mediatek Inc. Programmable transceiver structure of multi-rate OFDM-CDMA for wireless multimedia communications
JP4119696B2 (ja) * 2001-08-10 2008-07-16 松下電器産業株式会社 送信装置、受信装置及び無線通信方法
EP1422852A4 (en) * 2001-08-28 2009-11-11 Ntt Docomo Inc MULTI-CDMA TRANSMISSION SYSTEM, TRANSMITTER AND RECEIVER AND RECEIVER CDMA TRANSMISSION METHOD USED IN THE SYSTEM
EP1422853A4 (en) * 2001-08-30 2009-09-30 Ntt Docomo Inc RADIO TRANSMISSION SYSTEM AND METHOD, TRANSMISSION STATION APPARATUS, AND RECEPTION STATION APPARATUS, USED IN THIS RADIO TRANSMISSION SYSTEM
EP1432163B1 (en) 2001-09-28 2012-11-28 Fujitsu Limited Channel estimation device and method
US20030081538A1 (en) * 2001-10-18 2003-05-01 Walton Jay R. Multiple-access hybrid OFDM-CDMA system
JP3997890B2 (ja) * 2001-11-13 2007-10-24 松下電器産業株式会社 送信方法及び送信装置
JP3727283B2 (ja) 2001-11-26 2005-12-14 松下電器産業株式会社 無線送信装置、無線受信装置及び無線送信方法
CN101662444B (zh) * 2001-11-26 2015-05-13 松下电器（美国）知识产权公司 正交频分多路复用发送装置和方法、通信终端及基站装置
JP3914203B2 (ja) 2002-01-10 2007-05-16 富士通株式会社 Ｏｆｄｍシステムにおけるパイロット多重方法及びｏｆｄｍ受信方法
DE60213193T2 (de) * 2002-01-11 2007-06-21 Mitsubishi Electric Information Technology Centre Europe B.V. Verfahren für eine Aufwärtsstrecken-Vorverzerrung für ein MC-CDMA-Telekommunnikationssystem
DE60215608T2 (de) * 2002-01-11 2007-08-30 Mitsubishi Electric Information Technology Centre Europe B.V. Vorverzerrungsverfahren für einen Mehrträger-CDMA-Aufwärtskanal
US7133473B1 (en) 2002-02-15 2006-11-07 Marvell International Ltd. Divisionless baseband equalization in symbol modulated communications
US7567634B1 (en) 2002-02-15 2009-07-28 Marvell International Ltd. Reduced complexity viterbi decoding method and apparatus
JP3963737B2 (ja) * 2002-02-28 2007-08-22 松下電器産業株式会社 マルチキャリア信号生成方法、無線送信装置および無線受信装置
EP1357693B1 (en) * 2002-04-25 2010-06-09 Imec CDMA transceiver techniques for multiple input multiple output (mimo) wireless communications
CA2428576C (en) 2002-05-16 2008-10-07 Ntt Docomo, Inc. Transmitter for multi-carrier transmission and multi-carrier transmitting method
US20040028021A1 (en) * 2002-07-25 2004-02-12 Prabodh Varshney CDMA telecommunication system
JP4318510B2 (ja) * 2002-08-28 2009-08-26 パナソニック株式会社 通信装置および通信方法
EP1396956B1 (en) * 2002-09-05 2007-11-07 Mitsubishi Electric Information Technology Centre Europe B.V. MC-CDMA downlink beamforming method with the weights applied to every element of the antenna array being different for every user and every frequency bin, the weights being adapted to maximise the signal to interference and noise ratio
KR100465315B1 (ko) * 2002-10-25 2005-01-13 한국전자통신연구원 다중반송파 코드분할 다중접속에서의 확산/역확산 시스템및 그 방법
JP2004158901A (ja) * 2002-11-01 2004-06-03 Kddi Corp Ｏｆｄｍ及びｍｃ−ｃｄｍａを用いる送信装置、システム及び方法
US7633924B2 (en) * 2002-11-20 2009-12-15 Ntt Docomo, Inc. Communications system, communications method, transmitting apparatus, receiving apparatus and control program to variably adjust a symbol length
US7460876B2 (en) * 2002-12-30 2008-12-02 Intel Corporation System and method for intelligent transmitted power control scheme
US7756002B2 (en) * 2003-01-30 2010-07-13 Texas Instruments Incorporated Time-frequency interleaved orthogonal frequency division multiplexing ultra wide band physical layer
JP4276009B2 (ja) * 2003-02-06 2009-06-10 株式会社エヌ・ティ・ティ・ドコモ 移動局、基地局、無線伝送プログラム、及び無線伝送方法
JP2004297481A (ja) * 2003-03-27 2004-10-21 Kyocera Corp 無線通信システム、無線基地局および無線通信端末
KR100922980B1 (ko) * 2003-05-02 2009-10-22 삼성전자주식회사 다중 안테나를 사용하는 직교주파수분할다중 시스템에서 채널 추정 장치 및 방법
WO2004109953A1 (en) * 2003-06-04 2004-12-16 Agency For Science, Technology And Research A method and apparatus for a multicarrier code division multiple access system
EP1667348B1 (en) * 2003-08-19 2017-07-26 Panasonic Intellectual Property Corporation of America Radio transmitting apparatus and radio transmitting method
MXPA06001808A (es) * 2003-08-20 2006-05-04 Matsushita Electric Ind Co Ltd Aparato de comunicacion por radio y metodo de asignacion de subportadores.
JP4153907B2 (ja) * 2003-08-21 2008-09-24 株式会社東芝 Ｏｆｄｍ受信装置およびｏｆｄｍ受信方法
KR100520159B1 (ko) * 2003-11-12 2005-10-10 삼성전자주식회사 다중 안테나를 사용하는 직교주파수분할다중 시스템에서간섭신호 제거 장치 및 방법
KR100938095B1 (ko) * 2003-11-19 2010-01-21 삼성전자주식회사 직교 주파수 분할 다중 방식을 사용하는 통신시스템에서 프리앰블 시퀀스 생성 장치 및 방법
KR100818774B1 (ko) 2004-01-29 2008-04-03 포스데이타 주식회사 광대역 무선 통신 시스템에서 다중-반송파 및 직접 시퀀스확산 스펙트럼 신호를 중첩시키는 방법 및 장치
JP4256301B2 (ja) * 2004-05-28 2009-04-22 株式会社東芝 無線通信装置
JP4138702B2 (ja) * 2004-06-09 2008-08-27 株式会社東芝 無線通信装置
US8385296B2 (en) * 2004-07-22 2013-02-26 Industry Academic Cooperation Foundation Of Kyunghee University Multi-carrier CDMA transmitting device and method using block-based multi-carrier spreading
TWI256219B (en) * 2004-08-09 2006-06-01 Realtek Semiconductor Corp Interference alleviation equalizer of multi-carrier communication system and method thereof
WO2006075372A1 (ja) 2005-01-13 2006-07-20 Fujitsu Limited 無線通信システム
US7489755B2 (en) * 2005-02-09 2009-02-10 Motorola, Inc. Method and apparatus for transmission and reception of data
WO2006114932A1 (ja) * 2005-04-18 2006-11-02 Sharp Kabushiki Kaisha 無線通信装置および無線通信方法
KR100781313B1 (ko) * 2005-06-16 2007-12-03 엘지전자 주식회사 Ｏｆｄｍ 신호 송수신 방법 및 이를 이용한 이동통신단말기
WO2007015466A1 (ja) * 2005-08-01 2007-02-08 Sharp Kabushiki Kaisha セルラ移動通信システム、セルラ移動通信システムにおける基地局の送信装置と移動局の受信装置およびセルラ移動通信システムの基地局選択制御方法
US8139672B2 (en) * 2005-09-23 2012-03-20 Qualcomm Incorporated Method and apparatus for pilot communication in a multi-antenna wireless communication system
EP3641158A1 (en) 2005-09-30 2020-04-22 Apple Inc. Mimo communication system
EP3211946B1 (en) 2005-10-04 2018-09-19 Huawei Technologies Co., Ltd. A method and system for determining the group number used by mobile terminals having a same frequency band position for receiving signals in idle mode
EP1981302A4 (en) * 2006-01-23 2012-02-01 Sharp Kk BASE STATION DEVICE, MOBILE STATION DEVICE, MOBILE STATION IDENTIFIER ASSIGNING METHOD, AND PROGRAM AND RECORDING MEDIUM THEREOF
DE602006015361D1 (de) * 2006-02-08 2010-08-19 Ericsson Telefon Ab L M Generische parallel-spreizung
US8005169B1 (en) * 2006-03-17 2011-08-23 Marvell International Ltd. Joint estimation of channel and preamble sequence for orthogonal frequency division multiplexing systems
US20080025255A1 (en) * 2006-07-25 2008-01-31 Deepshikha Garg Multiple traffic types in a multicarrier system
US8363536B2 (en) * 2006-08-28 2013-01-29 Qualcomm Incorporated OFDM channel estimation
DE202008018444U1 (de) 2007-01-09 2014-03-06 Huawei Technologies Co., Ltd. Basisstationsvorrichtung und Mobilstationsvorrichtung
US8411805B1 (en) 2007-08-14 2013-04-02 Marvell International Ltd. Joint estimation of channel and preamble sequence for orthogonal frequency division multiplexing systems
US8654911B2 (en) 2008-08-20 2014-02-18 Qualcomm Incorporated Uplink SDMA pilot estimation
US8369471B1 (en) 2008-10-21 2013-02-05 Marvell International Ltd. Method and apparatus for improving channel estimation
US8422535B2 (en) * 2009-04-27 2013-04-16 Electronics And Telecommunications Research Institute Frequency selective digital transmission apparatus
CN102498734B (zh) * 2009-07-15 2015-04-15 黑莓有限公司 从多个信道估算技术之中进行选择
KR101984754B1 (ko) * 2012-05-08 2019-09-24 한국전자통신연구원 엘티이기반 이동통신시스템에서의 전력 제어 및 링크 적응 방법
US9794015B2 (en) 2014-04-04 2017-10-17 Apple Inc. Cell measurements in unlicensed frequency bands
DE102015205852B4 (de) 2014-04-04 2019-05-02 Apple Inc. Zell-Messungen in nicht-lizenzierten Frequenzbändern

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997050206A1 (en) * 1996-06-27 1997-12-31 Interdigital Technology Corporation Cdma communication system which selectively suppresses data transmissions during establishment of a communication channel
JPH10145245A (ja) * 1996-11-11 1998-05-29 Y R P Ido Tsushin Kiban Gijutsu Kenkyusho:Kk 可変データレート通信装置
EP0876008A1 (en) * 1997-05-02 1998-11-04 Siemens Aktiengesellschaft Adaptive data rate TDMA/CDMA communications system
EP0920160A2 (en) * 1997-11-26 1999-06-02 Matsushita Electric Industrial Co., Ltd. Transmission rate judgment method and apparatus
WO2000002326A2 (en) * 1998-07-03 2000-01-13 Nokia Networks Oy Data transmission method and mobile telephone system

Family Cites Families (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5103459B1 (en) * 1990-06-25 1999-07-06 Qualcomm Inc System and method for generating signal waveforms in a cdma cellular telephone system
US6334219B1 (en) * 1994-09-26 2001-12-25 Adc Telecommunications Inc. Channel selection for a hybrid fiber coax network
JP3625307B2 (ja) 1995-03-13 2005-03-02 株式会社東芝 マルチキャリア伝送システム及びマルチキャリア伝送方法
JPH08265184A (ja) 1995-03-22 1996-10-11 Mitsubishi Electric Corp マルチキャリア変調方式用受信機
GB9510127D0 (en) * 1995-05-20 1995-08-02 West End System Corp CATV Data transmission system
JPH08331095A (ja) * 1995-05-31 1996-12-13 Sony Corp 通信システム
JPH08335929A (ja) 1995-06-08 1996-12-17 Canon Inc スペクトラム拡散通信装置
US6122295A (en) 1995-06-08 2000-09-19 Canon Kabushiki Kaisha Multi-channel communication
US5726978A (en) * 1995-06-22 1998-03-10 Telefonaktiebolaget L M Ericsson Publ. Adaptive channel allocation in a frequency division multiplexed system
US6049535A (en) 1996-06-27 2000-04-11 Interdigital Technology Corporation Code division multiple access (CDMA) communication system
CA2200599A1 (en) 1995-07-25 1997-02-13 Gerald Paul Labedz Apparatus and method for rate determination in on-off variable-rate communication systems
JP3780551B2 (ja) * 1996-01-29 2006-05-31 ソニー株式会社 多元接続による信号送信方法及び装置
DE19616829C1 (de) * 1996-04-26 1997-04-24 Siemens Ag System zur Funkübertragung digitaler Signale zwischen mehreren Teilnehmerstationen und einer Basisstation
JPH09331356A (ja) * 1996-06-10 1997-12-22 Fujitsu Ltd 通信制御装置
JP3324941B2 (ja) 1996-09-11 2002-09-17 株式会社日立国際電気 変調パラメータ可変適応変調方式の送受信機
US6256290B1 (en) 1996-09-13 2001-07-03 Lucent Technologies, Inc. Multi-carrier CDMA transmission system with frequency and transmit diversity
GB9622728D0 (en) * 1996-10-31 1997-01-08 Discovision Ass Timing synchronization in a reciever employing orthogonal frequency division mutiplexing
DE19647833B4 (de) 1996-11-19 2005-07-07 Deutsches Zentrum für Luft- und Raumfahrt e.V. Verfahren zur gleichzeitigen Funkübertragung digitaler Daten zwischen mehreren Teilnehmerstationen und einer Basisstation
US6810030B1 (en) * 1997-10-17 2004-10-26 Lucent Technology Dynamic and smart spreading for wideband CDMA
US6175588B1 (en) * 1997-12-30 2001-01-16 Motorola, Inc. Communication device and method for interference suppression using adaptive equalization in a spread spectrum communication system
JP3981899B2 (ja) * 1998-02-26 2007-09-26 ソニー株式会社 送信方法、送信装置及び受信装置
JP3741858B2 (ja) 1998-03-19 2006-02-01 富士通株式会社 適応変調方式
US6353626B1 (en) * 1998-05-04 2002-03-05 Nokia Mobile Phones Limited Methods and apparatus for providing non-uniform de-multiplexing in a multi-carrier wide band CDMA system
JP2000004212A (ja) * 1998-06-12 2000-01-07 Matsushita Electric Ind Co Ltd 回線推定装置及び無線通信装置
US6385185B1 (en) * 1998-06-25 2002-05-07 Lucent Technologies Inc. Methods and apparatus for coherent detection of signals with orthogonal data modulation
US6404826B1 (en) * 1998-07-02 2002-06-11 Texas Instruments Incorporated Iterative signal-to-interference ratio estimation for WCDMA
WO2000003508A1 (fr) * 1998-07-13 2000-01-20 Sony Corporation Procede de communication, emetteur, et recepteur
KR100272011B1 (ko) * 1998-09-03 2000-11-15 윤종용 직접 시퀀스 코드분할 다중액세스 시스템 수신기의채널 보상 장치
US6798736B1 (en) * 1998-09-22 2004-09-28 Qualcomm Incorporated Method and apparatus for transmitting and receiving variable rate data
US6112295A (en) * 1998-09-24 2000-08-29 Intel Corporation High frequency pipeline decoupling queue with non-overlapping read and write signals within a single clock cycle
JP2000261403A (ja) * 1999-03-04 2000-09-22 Sony Corp 送信装置および方法、並びに提供媒体
US6192040B1 (en) * 1999-04-16 2001-02-20 Motorola, Inc. Method and apparatus for producing channel estimate of a communication channel in a CDMA communication system
JP4284774B2 (ja) * 1999-09-07 2009-06-24 ソニー株式会社 送信装置、受信装置、通信システム、送信方法及び通信方法
FR2798542B1 (fr) * 1999-09-13 2002-01-18 France Telecom Recepteur a multiplexage par repartition en frequences orthogonales avec estimation iterative de canal et procede correspondant
US6351499B1 (en) * 1999-12-15 2002-02-26 Iospan Wireless, Inc. Method and wireless systems using multiple antennas and adaptive control for maximizing a communication parameter
US6816555B2 (en) * 2000-02-18 2004-11-09 Sony Corporation Signal component demultiplexing apparatus, filter apparatus, receiving apparatus, communication apparatus, and communication method
US6396803B2 (en) * 2000-06-29 2002-05-28 California Amplifier, Inc. Modulation methods and structures for wireless communication systems and transceivers
US6985434B2 (en) * 2000-09-01 2006-01-10 Nortel Networks Limited Adaptive time diversity and spatial diversity for OFDM
JP4067755B2 (ja) * 2000-10-24 2008-03-26 三菱電機株式会社 スペクトラム拡散通信システムの受信機
US7099299B2 (en) * 2002-03-04 2006-08-29 Agency For Science, Technology And Research CDMA system with frequency domain equalization

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997050206A1 (en) * 1996-06-27 1997-12-31 Interdigital Technology Corporation Cdma communication system which selectively suppresses data transmissions during establishment of a communication channel
JPH10145245A (ja) * 1996-11-11 1998-05-29 Y R P Ido Tsushin Kiban Gijutsu Kenkyusho:Kk 可変データレート通信装置
EP0876008A1 (en) * 1997-05-02 1998-11-04 Siemens Aktiengesellschaft Adaptive data rate TDMA/CDMA communications system
EP0920160A2 (en) * 1997-11-26 1999-06-02 Matsushita Electric Industrial Co., Ltd. Transmission rate judgment method and apparatus
WO2000002326A2 (en) * 1998-07-03 2000-01-13 Nokia Networks Oy Data transmission method and mobile telephone system

Also Published As

Publication number Publication date
KR100408570B1 (ko) 2003-12-06
US7457324B2 (en) 2008-11-25
US20010028637A1 (en) 2001-10-11
CN1324159A (zh) 2001-11-28
EP1128592A2 (en) 2001-08-29
KR20010085385A (ko) 2001-09-07
US20060039331A1 (en) 2006-02-23
CN1309204C (zh) 2007-04-04
EP1128592A3 (en) 2003-09-17
CA2335225A1 (en) 2001-08-23
CA2335225C (en) 2008-12-02
US7492794B2 (en) 2009-02-17
CN1198417C (zh) 2005-04-20
AU754268B2 (en) 2002-11-07
CN1610288A (zh) 2005-04-27
AU2121701A (en) 2001-08-30

Similar Documents

Publication Publication Date Title
SG108240A1 (en) Multi-carrier cdma radio transmitting method and apparatus, and channel estimation method and apparatus for multi-carrier cdma radio transmitting system
GB2322046B (en) System,method,and wireless communication device for soft handoff
ZA200001680B (en) Channel communication apparatus and method in CDMA communication system.
MXPA03009011A (es) Metodos y aparatos para estimar la posicion de una estacion movil.
SG81984A1 (en) System, apparatus and method for multi-carrier transmission
SG108277A1 (en) Wireless communication apparatus and wireless channel assignment method
MXPA03003564A (es) Metodo y aparato para el calculo del canal de clasificacion reducido en un sistema de comunicacion.
IL161730A0 (en) Method and apparatus for mitigatingadjacent channel interference in a wireless communication system
AU2001278190A1 (en) Method and apparatus for channel gain and channel delay estimation in a multi-carrier cdma system
HK1043457A1 (en) Method and apparatus for transmitting the sync channel message in a multi-carrier communication system.
SG115457A1 (en) Packet transmission method and system, and packet transmitting apparatus, packet receiving apparatus, and packet transmitting/receiving apparatus
SG109469A1 (en) Method for allocating radio resource, radio communication apparatus and radio communication system
SG103912A1 (en) Mobile communication system, channel synchronization establishing method, and mobile station
AU2002230870A1 (en) Receiver-initiated channel-hopping (rich) method for wireless communication networks
AU2001264169A1 (en) Apparatus, and associated method, for integrating operation of packet radio communication systems
EP1199820A3 (en) DS-CDMA synchronization method, receiving apparatus, and mobile station
EP1422852A4 (en) MULTI-CDMA TRANSMISSION SYSTEM, TRANSMITTER AND RECEIVER AND RECEIVER CDMA TRANSMISSION METHOD USED IN THE SYSTEM
EP1528720A4 (en) DEVICE, SYSTEM AND METHOD FOR RADIO COMMUNICATION
EP1531558A4 (en) SENDING DEVICE, RECEIVING DEVICE, RADIO COMMUNICATION METHOD AND RADIO COMMUNICATION SYSTEM
EP1429571A4 (en) RADIO BASE APPARATUS, COMMUNICATION TRACK ALLOCATION METHOD, AND ALLOCATION PROGRAM
SG107097A1 (en) Handover control method and apparatus, and mobile communication system
AU2001264168A1 (en) Apparatus, and associated method, for integrating operation of packet radio communication systems
GB0012410D0 (en) Radio system and apparatus for, and method of, multicast communication
GB2407944B (en) Half-duplex radio communication apparatus, system and method
AU2464300A (en) Apparatus and method for spreading channel data in CDMA communication system using orthogonal transmit diversity