DE69636498D1 - Rake-empfängerarchitektur für einen mobilen demodulator zur verwendung in einem kodemultiplexvielfachzugriffsübertragungssystem - Google Patents

Rake-empfängerarchitektur für einen mobilen demodulator zur verwendung in einem kodemultiplexvielfachzugriffsübertragungssystem

Info

Publication number
DE69636498D1
DE69636498D1 DE69636498T DE69636498T DE69636498D1 DE 69636498 D1 DE69636498 D1 DE 69636498D1 DE 69636498 T DE69636498 T DE 69636498T DE 69636498 T DE69636498 T DE 69636498T DE 69636498 D1 DE69636498 D1 DE 69636498D1
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DE
Germany
Prior art keywords
kodemultiplex
transmission system
rake receiver
access transmission
receiver architecture
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
DE69636498T
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English (en)
Other versions
DE69636498T2 (de
Inventor
D Easton
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.)
Qualcomm Inc
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Qualcomm Inc
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Filing date
Publication date
Application filed by Qualcomm Inc filed Critical Qualcomm Inc
Publication of DE69636498D1 publication Critical patent/DE69636498D1/de
Application granted granted Critical
Publication of DE69636498T2 publication Critical patent/DE69636498T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/24Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
    • 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
    • H04B1/7117Selection, re-selection, allocation or re-allocation of paths to fingers, e.g. timing offset control of allocated fingers
    • 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
    • H04B1/06Receivers
    • 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
DE69636498T 1995-06-20 1996-06-18 Rake-empfängerarchitektur für einen mobilen demodulator zur verwendung in einem kodemultiplexvielfachzugriffsübertragungssystem Expired - Lifetime DE69636498T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US492592 1995-06-20
US08/492,592 US5764687A (en) 1995-06-20 1995-06-20 Mobile demodulator architecture for a spread spectrum multiple access communication system
PCT/US1996/010575 WO1997001227A1 (en) 1995-06-20 1996-06-18 Rake receiver architecture for a mobile demodulator used in a cdma communication system

Publications (2)

Publication Number Publication Date
DE69636498D1 true DE69636498D1 (de) 2006-10-12
DE69636498T2 DE69636498T2 (de) 2007-03-29

Family

ID=23956850

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69636498T Expired - Lifetime DE69636498T2 (de) 1995-06-20 1996-06-18 Rake-empfängerarchitektur für einen mobilen demodulator zur verwendung in einem kodemultiplexvielfachzugriffsübertragungssystem

Country Status (22)

Country Link
US (1) US5764687A (de)
EP (1) EP0834226B1 (de)
JP (1) JP3725552B2 (de)
KR (1) KR100390562B1 (de)
CN (1) CN1115805C (de)
AR (1) AR002539A1 (de)
AT (1) ATE338389T1 (de)
AU (1) AU700715B2 (de)
BR (1) BR9609173B1 (de)
CA (1) CA2224934C (de)
DE (1) DE69636498T2 (de)
EA (1) EA000728B1 (de)
FI (1) FI115270B (de)
HK (1) HK1010956A1 (de)
ID (1) ID19872A (de)
IL (1) IL118665A (de)
MY (1) MY115194A (de)
NO (1) NO975996L (de)
NZ (1) NZ312854A (de)
TW (1) TW295752B (de)
WO (1) WO1997001227A1 (de)
ZA (1) ZA964963B (de)

Families Citing this family (177)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MY120873A (en) * 1994-09-30 2005-12-30 Qualcomm Inc Multipath search processor for a spread spectrum multiple access communication system
US7929498B2 (en) 1995-06-30 2011-04-19 Interdigital Technology Corporation Adaptive forward power control and 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
US6885652B1 (en) 1995-06-30 2005-04-26 Interdigital Technology Corporation Code division multiple access (CDMA) communication system
ZA965340B (en) 1995-06-30 1997-01-27 Interdigital Tech Corp Code division multiple access (cdma) communication system
JP3286885B2 (ja) * 1995-11-07 2002-05-27 三菱電機株式会社 タイミング再生手段及びダイバーシティ通信装置
JP3409628B2 (ja) * 1996-06-19 2003-05-26 株式会社エヌ・ティ・ティ・ドコモ Cdma通信方法およびグループ拡散変調器
US5943363A (en) * 1996-07-17 1999-08-24 Stanford Telecommunications, Inc. Digital spread spectrum GPS navigation receiver
US6067292A (en) * 1996-08-20 2000-05-23 Lucent Technologies Inc Pilot interference cancellation for a coherent wireless code division multiple access receiver
JPH10173630A (ja) * 1996-12-13 1998-06-26 Nec Corp Cdmaチップ同期回路
JPH10190528A (ja) * 1996-12-25 1998-07-21 Matsushita Electric Ind Co Ltd スペクトル拡散受信機
JPH10200505A (ja) * 1997-01-06 1998-07-31 Sony Corp 受信装置及び受信方法、並びに無線システムの端末装置
JPH10200506A (ja) * 1997-01-06 1998-07-31 Sony Corp 受信装置及び受信方法、並びに無線システムの端末装置
JPH10200508A (ja) * 1997-01-14 1998-07-31 Sony Corp 無線システムの端末装置及びサーチ方法
JP3702562B2 (ja) * 1997-01-14 2005-10-05 ソニー株式会社 無線システムの端子装置
JPH10209919A (ja) * 1997-01-21 1998-08-07 Sony Corp 受信装置及び受信方法、並びに携帯電話システムの端末装置
US7366900B2 (en) 1997-02-12 2008-04-29 Verizon Laboratories, Inc. Platform-neutral system and method for providing secure remote operations over an insecure computer network
US5923756A (en) * 1997-02-12 1999-07-13 Gte Laboratories Incorporated Method for providing secure remote command execution over an insecure computer network
US6301661B1 (en) 1997-02-12 2001-10-09 Verizon Labortories Inc. Enhanced security for applications employing downloadable executable content
US7062781B2 (en) * 1997-02-12 2006-06-13 Verizon Laboratories Inc. Method for providing simultaneous parallel secure command execution on multiple remote hosts
US6144649A (en) 1997-02-27 2000-11-07 Motorola, Inc. Method and apparatus for acquiring a pilot signal in a CDMA receiver
US6724738B1 (en) * 1997-02-27 2004-04-20 Motorola Inc. Method and apparatus for acquiring a pilot signal in a CDMA receiver
JPH1115773A (ja) * 1997-06-24 1999-01-22 Matsushita Electron Corp 半導体集積回路、コンピュータシステム、データ処理装置及びデータ処理方法
US6185199B1 (en) 1997-07-23 2001-02-06 Qualcomm Inc. Method and apparatus for data transmission using time gated frequency division duplexing
KR100258221B1 (ko) * 1997-07-25 2000-06-01 윤종용 통신시스템의 패킷 트래픽 채널의 초기화 방법
US6097972A (en) * 1997-08-29 2000-08-01 Qualcomm Incorporated Method and apparatus for processing power control signals in CDMA mobile telephone system
US6145108A (en) * 1997-09-04 2000-11-07 Conexant Systems, Inc. Retransmission packet capture system within a wireless multiservice communications environment
US6138260A (en) * 1997-09-04 2000-10-24 Conexant Systems, Inc. Retransmission packet capture system within a wireless multiservice communications environment with turbo decoding
US6078611A (en) * 1997-09-16 2000-06-20 Motorola, Inc. Rake receiver and finger management method for spread spectrum communication
JP3297632B2 (ja) * 1997-09-20 2002-07-02 松下電器産業株式会社 Cdma端末装置
US7289473B1 (en) 1997-11-03 2007-10-30 Qualcomm Incorporated Pilot reference transmission for a wireless communication system
US9118387B2 (en) 1997-11-03 2015-08-25 Qualcomm Incorporated Pilot reference transmission for a wireless communication system
US7184426B2 (en) * 2002-12-12 2007-02-27 Qualcomm, Incorporated Method and apparatus for burst pilot for a time division multiplex system
KR100450966B1 (ko) * 1997-11-17 2005-01-17 삼성전자주식회사 멀티코드 방식의 cdma 시스템에서의 데이터 복조기
US6175587B1 (en) * 1997-12-30 2001-01-16 Motorola, Inc. Communication device and method for interference suppression in a DS-CDMA system
KR100259051B1 (ko) 1997-12-31 2000-06-15 윤종용 직접 씨퀀스 씨디엠에이 이동 통신시스템의 오프-셋 사진위상천이변조장치 및 방법
EP0935204A3 (de) * 1998-02-05 2001-02-28 Texas Instruments Incorporated Programmierbarer Korrelatorzusatzprozessor
US6169752B1 (en) * 1998-02-26 2001-01-02 Lsi Logic Corporation Method and system for preventing information losses during alternative frequency searches
JP2894340B1 (ja) * 1998-03-04 1999-05-24 日本電気株式会社 スペクトラム拡散通信方式
KR100291477B1 (ko) * 1998-06-02 2001-07-12 윤종용 이동통신시스템의가변데이터율전송환경에서순차적경로검색방법
US6330452B1 (en) 1998-08-06 2001-12-11 Cell-Loc Inc. Network-based wireless location system to position AMPs (FDMA) cellular telephones, part I
US6201827B1 (en) 1998-09-09 2001-03-13 Qualcomm Incorporated System and method for probability based lock detection
US6125137A (en) * 1998-09-11 2000-09-26 Motorola, Inc. Apparatus and method for performing a signal search in a coherent wireless communication system
US6560273B1 (en) * 1998-10-07 2003-05-06 Ericsson Inc. Delay searcher and delay trackers interaction for new delays assignment to rake fingers
US6204812B1 (en) 1998-10-09 2001-03-20 Cell-Loc Inc. Methods and apparatus to position a mobile receiver using downlink signals, part II
US6208297B1 (en) 1998-10-09 2001-03-27 Cell-Loc Inc. Methods and apparatus to position a mobile receiver using downlink signals, part I
US6266014B1 (en) 1998-10-09 2001-07-24 Cell-Loc Inc. Methods and apparatus to position a mobile receiver using downlink signals part IV
US6330271B1 (en) 1998-10-13 2001-12-11 Telefonaktiebolaget Lm Ericsson (Publ) CDMA receiver that shares a tracking device among multiple rake branches
US6243561B1 (en) * 1998-10-13 2001-06-05 Qualcomm Incorporated Offline page monitoring
EP1133834B1 (de) * 1998-10-27 2005-08-17 Siemens Aktiengesellschaft Verfahren zum steuern von speicherzugriffen bei "rake"-empfängern mit "early-late tracking" in telekommunikationssystemen
US6625197B1 (en) * 1998-10-27 2003-09-23 Qualcomm Incorporated Method and apparatus for multipath demodulation in a code division multiple access communication system
US6256725B1 (en) 1998-12-04 2001-07-03 Agere Systems Guardian Corp. Shared datapath processor utilizing stack-based and register-based storage spaces
US6229841B1 (en) 1998-12-11 2001-05-08 Qualcomm Incorporated Method and apparatus for energy estimation in a wireless receiver capable of receiving multiple instances of a common signal
US6130923A (en) * 1998-12-11 2000-10-10 Qualcomm Incorporated Lock detection for multipath wireless receiver
US6678842B1 (en) * 1998-12-14 2004-01-13 Agere Systems Inc. Communications system and associated deskewing methods
US6675327B1 (en) * 1998-12-14 2004-01-06 Agere Systems Inc. Communications system including lower rate parallel electronics with skew compensation and associated methods
US6633553B1 (en) * 1998-12-31 2003-10-14 Samsung Electronics Co., Ltd. Apparatus and method for forward power controlling in CDMA mobile telecommunication system
US6618431B1 (en) * 1998-12-31 2003-09-09 Texas Instruments Incorporated Processor-based method for the acquisition and despreading of spread-spectrum/CDMA signals
US6654429B1 (en) 1998-12-31 2003-11-25 At&T Corp. Pilot-aided channel estimation for OFDM in wireless systems
KR100288753B1 (ko) * 1998-12-31 2001-05-02 윤종용 멀티캐리어 부호분할다중접속 통신시스템의 수신장치 방법
JP2007162028A (ja) * 1999-03-10 2007-06-28 Suzuka Fuji Xerox Co Ltd 樹脂成形品のリサイクル方法
US6356528B1 (en) 1999-04-15 2002-03-12 Qualcomm Incorporated Interleaver and deinterleaver for use in a diversity transmission communication system
US6304563B1 (en) * 1999-04-23 2001-10-16 Qualcomm Incorporated Method and apparatus for processing a punctured pilot channel
JP4354041B2 (ja) * 1999-04-30 2009-10-28 富士通株式会社 無線端末装置
US7085246B1 (en) 1999-05-19 2006-08-01 Motorola, Inc. Method and apparatus for acquisition of a spread-spectrum signal
US7031271B1 (en) 1999-05-19 2006-04-18 Motorola, Inc. Method of and apparatus for activating a spread-spectrum radiotelephone
US6748006B1 (en) 1999-05-28 2004-06-08 Texas Instruments Incorporated Method and apparatus for controlling system timing with use of a master timer
US6452959B1 (en) * 1999-05-28 2002-09-17 Dot Wireless, Inc. Method of and apparatus for generating data sequences for use in communications
US6356581B1 (en) * 1999-05-28 2002-03-12 Philips Electronics North American Corporation Efficient method of providing symbol data from demodulator to a processor
US7035238B1 (en) * 1999-06-04 2006-04-25 Lucent Technologies Inc. Code assignment in a CDMA wireless system
US6285861B1 (en) * 1999-06-14 2001-09-04 Qualcomm Incorporated Receiving station with interference signal suppression
JP3445186B2 (ja) 1999-07-08 2003-09-08 松下電器産業株式会社 Cdma受信機
ATE270796T1 (de) * 1999-07-15 2004-07-15 Infineon Technologies Ag Verfahren zur schätzung der kanalimpulsantwort eines mobilfunkkanals
WO2001013526A2 (en) * 1999-08-19 2001-02-22 Invertix Corporation Wireless telephone network optimization
US6940838B1 (en) 1999-08-19 2005-09-06 Invertix Corporation Wireless telephone network optimization
US6493329B1 (en) * 1999-08-23 2002-12-10 Qualcomm Incorporated Adaptive channel estimation in a wireless communication system
US8064409B1 (en) 1999-08-25 2011-11-22 Qualcomm Incorporated Method and apparatus using a multi-carrier forward link in a wireless communication system
US6785554B1 (en) * 1999-09-15 2004-08-31 Qualcomm Incorporated Modified finger assignment algorithm for high data rate calls
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
DE19955757A1 (de) * 1999-11-19 2001-06-21 Infineon Technologies Ag Programmierbare Synchronisiereinheit für einen Signalempfänger
CN1124728C (zh) * 1999-11-25 2003-10-15 华为技术有限公司 一种多选择相干检测方法
CN1214539C (zh) * 1999-12-17 2005-08-10 皇家菲利浦电子有限公司 管理多路径信号的方法与装置
US6650694B1 (en) * 2000-02-18 2003-11-18 Texas Instruments Incorporated Correlator co-processor for CDMA RAKE receiver operations
US6917642B1 (en) * 2000-02-23 2005-07-12 Ipr Licensing, Inc. Method for using a non-orthogonal pilot signal with data channel interference cancellation
KR100459120B1 (ko) * 2000-03-21 2004-12-03 엘지전자 주식회사 신호처리를 위한 연산 장치
US7224719B1 (en) 2000-03-31 2007-05-29 Qualcomm, Incorporated Fast acquisition of a pilot signal in a wireless communication device
US6661834B1 (en) 2000-04-17 2003-12-09 Rf Micro Devices, Inc. Carrier recovery for spread spectrum communications
US6674818B1 (en) 2000-04-17 2004-01-06 Rf Micro Devices, Inc. Reduced complexity decision circuitry
US6693954B1 (en) 2000-04-17 2004-02-17 Rf Micro Devices, Inc. Apparatus and method of early-late symbol tracking for a complementary code keying receiver
US6628702B1 (en) 2000-06-14 2003-09-30 Qualcomm, Incorporated Method and apparatus for demodulating signals processed in a transmit diversity mode
EP1175019B1 (de) * 2000-07-21 2004-03-17 STMicroelectronics N.V. RAKE-Empfänger für ein CDMA System, insbesondere in einem zellularen Mobiltelefon
US7082174B1 (en) 2000-07-24 2006-07-25 Qualcomm, Incorporated Method and apparatus for processing a modulated signal using an equalizer and a rake receiver
AU2001286414A1 (en) * 2000-07-31 2002-02-13 Morphics Technology, Inc. Apparatus and methods for sample selection and reuse of rake fingers in spread spectrum systems
US7031373B1 (en) * 2000-08-15 2006-04-18 Motorola, Inc. Apparatus for controlling a plurality of receiver fingers in a CDMA receiver
EP1329031B1 (de) * 2000-09-13 2005-12-14 Nortel Networks Limited Mehrbenutzerdetektion in einem cdma-kommunikationssystem
GB0022634D0 (en) * 2000-09-15 2000-11-01 Koninkl Philips Electronics Nv Secondary station and method of operating the station
US6771691B1 (en) * 2000-09-15 2004-08-03 Texas Instruments Incorporated System and method for extracting soft symbols in direct sequence spread spectrum communications
US7443826B1 (en) * 2000-10-04 2008-10-28 Telefonaktiebolaget L M Ericsson (Publ) Method and apparatus for automatic frequency control in a CDMA receiver
US6697629B1 (en) 2000-10-11 2004-02-24 Qualcomm, Incorporated Method and apparatus for measuring timing of signals received from multiple base stations in a CDMA communication system
JP3476009B2 (ja) * 2000-10-11 2003-12-10 日本電気株式会社 Cdma通信システムにおける移動局及びそのフィンガー割り当て方法
DE10052392A1 (de) * 2000-10-20 2002-05-02 Alcatel Sa Basisstation eines funkbetriebenen Kommunikationssystems
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
US6735240B1 (en) 2000-11-21 2004-05-11 Qualcomm, Incorporated System and method of deskew buffering signals
US6985516B1 (en) 2000-11-27 2006-01-10 Qualcomm Incorporated Method and apparatus for processing a received signal in a communications system
US7236500B1 (en) * 2000-12-19 2007-06-26 Intel Corporation Demodulation of multi-user, multi-protocol data in a reconfigurable datapath
US6771692B2 (en) * 2001-01-11 2004-08-03 Qualcomm Incorporated Time tracking in a non-negligible multipath spacing environment
US7277471B2 (en) * 2001-01-11 2007-10-02 Qualcomm Incorporated Time-tracking for clustered demodulation elements in a spread spectrum system
JP2002290281A (ja) * 2001-01-16 2002-10-04 Kawasaki Steel Corp Rake受信装置
US7085310B2 (en) * 2001-01-29 2006-08-01 Qualcomm, Incorporated Method and apparatus for managing finger resources in a communication system
JP2002232397A (ja) * 2001-01-31 2002-08-16 Ntt Docomo Inc 移動通信システムにおける受信処理方法及び受信装置
US6813478B2 (en) * 2001-02-12 2004-11-02 Qualcomm Inc Method and apparatus for searching a gated pilot
US20020136234A1 (en) * 2001-02-14 2002-09-26 Hakan Eriksson Tuning the fingers of rake receiver
JP3468224B2 (ja) * 2001-04-02 2003-11-17 三菱電機株式会社 マルチユーザ復調装置、受信装置、並びにマルチチャネル復調方法。
US6700922B2 (en) * 2001-04-09 2004-03-02 Raghu Challa System and method for acquiring a received signal in a spread spectrum device
US6853646B2 (en) * 2001-05-02 2005-02-08 Ipr Licensing, Inc. Fast switching of forward link in wireless system
US7209461B2 (en) * 2001-05-09 2007-04-24 Qualcomm Incorporated Method and apparatus for chip-rate processing in a CDMA system
WO2002093764A1 (de) * 2001-05-16 2002-11-21 Siemens Aktiengesellschaft Vorrichtung und verfahren zum verarbeiten von cdma-datenpaketen
US8611311B2 (en) 2001-06-06 2013-12-17 Qualcomm Incorporated Method and apparatus for canceling pilot interference in a wireless communication system
US20050013350A1 (en) * 2001-06-06 2005-01-20 Coralli Alessandro Vanelli Method and apparatus for canceling pilot interference in a wireless communication system
US7190749B2 (en) * 2001-06-06 2007-03-13 Qualcomm Incorporated Method and apparatus for canceling pilot interference in a wireless communication system
US7430191B2 (en) * 2001-09-10 2008-09-30 Qualcomm Incorporated Method and apparatus for performing frequency tracking based on diversity transmitted pilots in a CDMA communication system
US7020180B2 (en) * 2001-10-04 2006-03-28 Qualcomm Inc. Method and apparatus for acquiring pilots over code space and frequency errors in a CDMA communication system
EP1446893B1 (de) 2001-11-20 2009-01-07 MediaTek Inc. Verfahren und vorrichtungen zur spreizspektrum-signalverarbeitung unter verwendung eines unkonfigurierbaren koprozessors
KR100453811B1 (ko) * 2001-11-30 2004-10-20 한국전자통신연구원 확산대역 통신시스템의 다중 경로 탐색 장치 및 그 방법
DE10158738A1 (de) * 2001-11-30 2003-07-03 Systemonic Ag Verfahren und Anordnung zur Dekodierung spreizspektrumkodierter Signale
EP1470651A1 (de) * 2002-01-10 2004-10-27 Analog Devices, Inc. Wegesuche für die cdma-implementierung
US7106784B2 (en) * 2002-01-25 2006-09-12 Sasken Communication Technologies Limited Universal rake receiver
US7010017B2 (en) * 2002-01-30 2006-03-07 Qualcomm Inc. Receiver noise estimation
US6748013B2 (en) * 2002-02-12 2004-06-08 Interdigital Technology Corporation Receiver for wireless telecommunication stations and method
US6748009B2 (en) * 2002-02-12 2004-06-08 Interdigital Technology Corporation Receiver for wireless telecommunication stations and method
DE10210323A1 (de) * 2002-03-08 2003-10-02 Infineon Technologies Ag Hardware-Unterstützung für die SINR-Berechnung in Funkempfängern
US6785322B1 (en) * 2002-04-12 2004-08-31 Interdigital Technology Corporation Node-B/base station rake finger pooling
US7103091B2 (en) * 2002-05-07 2006-09-05 Stmicroelectronics, Inc. Common data path rake receiver for a CDMA demodulator circuit
US20030227888A1 (en) * 2002-06-05 2003-12-11 Farrokh Abrishamkar Method and apparatus for pilot estimation using suboptimum expectation maximization
US7286506B2 (en) * 2002-06-05 2007-10-23 Qualcomm Incorporated Method and apparatus for pilot estimation using a prediction error method with a kalman filter and a Gauss-Newton algorithm
US20030227879A1 (en) * 2002-06-05 2003-12-11 Farrokh Abrishamkar Method and apparatus for pilot estimation using a prediction error method with a kalman filter and pseudo-linear regression
US6744749B2 (en) 2002-06-05 2004-06-01 Qualcomm, Incorporated Method and apparatus for pilot estimation using a wiener filter
US7236512B2 (en) 2002-09-09 2007-06-26 Qualcomm Incorporated Code channel allocations in a wireless communications system
US20040062217A1 (en) * 2002-09-30 2004-04-01 Farrokh Abrishamkar Method and apparatus for pilot estimation using an adaptive prediction error method with a kalman filter and a gauss-newton algorithm
US20040062465A1 (en) * 2002-10-01 2004-04-01 Woodley Bruce Robert Apparatus and method for measuring optical power as a function of wavelength
US7042928B2 (en) 2002-10-23 2006-05-09 Qualcomm Incorporated Method and apparatus for pilot estimation using prediction error method
US20040125862A1 (en) * 2002-10-31 2004-07-01 Tao Li Pilot processing architecture
US7751508B2 (en) * 2002-12-03 2010-07-06 Qualcomm Incorporated Multi-resolution frequency tracking loop system and method
US20060274819A1 (en) * 2003-01-30 2006-12-07 Magnus Bengtsson Truncation and level adjustment of rake output symbols
GB0305561D0 (en) * 2003-03-11 2003-04-16 Ttpcomm Ltd Multi-path searching
US7646802B2 (en) * 2003-06-02 2010-01-12 Qualcomm Incorporated Communication receiver with hybrid equalizer
US20050009476A1 (en) * 2003-07-07 2005-01-13 Shiquan Wu Virtual MIMO transmitters, receivers, systems and methods
US7298775B1 (en) * 2003-08-29 2007-11-20 National Semiconductor Corporation Processor-implemented RAKE receiver
KR100608109B1 (ko) * 2004-06-28 2006-08-02 삼성전자주식회사 이동통신 시스템에서 도플러 주파수 및 단말기의 이동속도 계산 장치 및 방법
US7916773B2 (en) * 2004-12-20 2011-03-29 Telefonaktiebolaget L M Ericsson (Publ) Scaling and truncating in a receiver for coded digital data symbols
US8406695B2 (en) 2004-12-23 2013-03-26 Qualcomm Incorporated Joint interference cancellation of pilot, overhead and traffic channels
US8099123B2 (en) * 2004-12-23 2012-01-17 Qualcomm Incorporated Adaptation of transmit subchannel gains in a system with interference cancellation
US8442441B2 (en) * 2004-12-23 2013-05-14 Qualcomm Incorporated Traffic interference cancellation
US8422955B2 (en) 2004-12-23 2013-04-16 Qualcomm Incorporated Channel estimation for interference cancellation
US20080137846A1 (en) * 2005-01-14 2008-06-12 Alton Shelborne Keel Ram- Based Scrambling Code Generator for Cdma
BRPI0519320A2 (pt) * 2005-01-14 2009-01-13 Thomson Licensing hardware pesquisador para realizar uma determinaÇço de càdigo de misturaÇço
US8059776B2 (en) * 2005-01-14 2011-11-15 Thomson Licensing Method and system for sub-chip resolution for secondary cell search
EP1836775A1 (de) * 2005-01-14 2007-09-26 Thomson Licensing Hardwareeffiziente sucherarchitektur für zellulare cdma-empfänger
BRPI0519323A2 (pt) * 2005-01-14 2009-01-13 Thomson Licensing combinador de razço maximal eficiente para sistemas cdma
KR100613602B1 (ko) * 2005-02-07 2006-08-21 삼성전자주식회사 Vsb 수신기에 적용되는 심벌 타이밍 복원 장치 및 그방법
WO2007036787A2 (en) * 2005-09-27 2007-04-05 Nokia Corporation Pilot structure for multicarrier transmissions
US7630427B2 (en) * 2005-09-29 2009-12-08 Qualcomm Incorporated Systems, methods, and apparatus for establishing finger lock state
US8472877B2 (en) * 2005-10-24 2013-06-25 Qualcomm Incorporated Iterative interference cancellation system and method
US8385388B2 (en) * 2005-12-06 2013-02-26 Qualcomm Incorporated Method and system for signal reconstruction from spatially and temporally correlated received samples
KR100842585B1 (ko) * 2006-02-01 2008-07-01 삼성전자주식회사 코드분할다중접속 시스템에서의 코드 추적 루프 장치 및 방법
US8920343B2 (en) 2006-03-23 2014-12-30 Michael Edward Sabatino Apparatus for acquiring and processing of physiological auditory signals
EP2013970A2 (de) * 2006-05-04 2009-01-14 Nxp B.V. Empfänger mit afc-funktion zum betrieb beim soft-handover
US8358987B2 (en) * 2006-09-28 2013-01-22 Mediatek Inc. Re-quantization in downlink receiver bit rate processor
US20080080542A1 (en) * 2006-09-28 2008-04-03 Analog Devices, Inc. Architecture for downlink receiver bit rate processor
US7873125B2 (en) * 2006-11-30 2011-01-18 Broadcom Corporation Method and system for sliding window phase estimator for WCDMA automatic frequency correction
US8036312B2 (en) * 2007-03-30 2011-10-11 Freescale Semiconductor, Inc. System and method for determining signal phase
RU2520357C2 (ru) * 2009-03-31 2014-06-20 Конинклейке Филипс Электроникс Н.В. Система демодуляции сигнала
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
US20140185591A1 (en) 2012-04-06 2014-07-03 Qualcomm Incorporated Power control with dynamic timing update
US9276778B2 (en) * 2014-01-31 2016-03-01 Qualcomm Incorporated Instruction and method for fused rake-finger operation on a vector processor
DE102014014677B4 (de) * 2014-09-29 2023-08-31 Elmos Semiconductor Se Verfahren zur Erzeugung von PDM-modulierten Signalen für die Versorgung von LEDs für die Beleuchtung in Kfz

Family Cites Families (13)

* 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
US4894842A (en) * 1987-10-15 1990-01-16 The Charles Stark Draper Laboratory, Inc. Precorrelation digital spread spectrum receiver
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
US5109390A (en) * 1989-11-07 1992-04-28 Qualcomm Incorporated Diversity receiver in a cdma cellular telephone system
US5056109A (en) * 1989-11-07 1991-10-08 Qualcomm, Inc. Method and apparatus for controlling transmission power in a cdma cellular mobile 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
ZA938324B (en) * 1992-11-24 1994-06-07 Qualcomm Inc Pilot carrier dot product circuit
US5289499A (en) * 1992-12-29 1994-02-22 At&T Bell Laboratories Diversity for direct-sequence spread spectrum systems
US5361276A (en) * 1993-09-13 1994-11-01 At&T Bell Laboratories All digital maximum likelihood based spread spectrum receiver
US5490165A (en) * 1993-10-28 1996-02-06 Qualcomm Incorporated Demodulation element assignment in a system capable of receiving multiple signals
US5544156A (en) * 1994-04-29 1996-08-06 Telefonaktiebolaget Lm Ericsson Direct sequence CDMA coherent uplink detector
US5511067A (en) * 1994-06-17 1996-04-23 Qualcomm Incorporated Layered channel element in a base station modem for a CDMA cellular communication system
US5574747A (en) * 1995-01-04 1996-11-12 Interdigital Technology Corporation Spread spectrum adaptive power control system and method

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NO975996D0 (no) 1997-12-19
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CN1115805C (zh) 2003-07-23
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CA2224934C (en) 2006-01-24
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IL118665A (en) 2000-01-31
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US5764687A (en) 1998-06-09
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MY115194A (en) 2003-04-30
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BR9609173B1 (pt) 2011-03-09
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