CN100349151C - 用于执行数字调制和解调的灵活方法及装置 - Google Patents

用于执行数字调制和解调的灵活方法及装置 Download PDF

Info

Publication number
CN100349151C
CN100349151C CNB038209314A CN03820931A CN100349151C CN 100349151 C CN100349151 C CN 100349151C CN B038209314 A CNB038209314 A CN B038209314A CN 03820931 A CN03820931 A CN 03820931A CN 100349151 C CN100349151 C CN 100349151C
Authority
CN
China
Prior art keywords
buffer
buffers
processing
processor
processing unit
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 - Fee Related
Application number
CNB038209314A
Other languages
English (en)
Chinese (zh)
Other versions
CN1678973A (zh
Inventor
R·W·波伊赛尔
T·J·迈尔斯
T·Q·阮
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.)
Zenith Investment LLC
Apple Inc
Original Assignee
Commasic LLC
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 Commasic LLC filed Critical Commasic LLC
Publication of CN1678973A publication Critical patent/CN1678973A/zh
Application granted granted Critical
Publication of CN100349151C publication Critical patent/CN100349151C/zh
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Classifications

    • 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
    • H04B1/7097—Interference-related aspects
    • H04B1/711—Interference-related aspects the interference being multi-path interference
    • H04B1/7115—Constructive combining of multi-path signals, i.e. RAKE receivers
    • H04B1/712—Weighting of fingers for combining, e.g. amplitude control or phase rotation using an inner loop
    • 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
    • H04B1/7097—Interference-related aspects
    • H04B1/711—Interference-related aspects the interference being multi-path interference
    • H04B1/7115—Constructive combining of multi-path signals, i.e. RAKE receivers
    • H04B1/7117—Selection, re-selection, allocation or re-allocation of paths to fingers, e.g. timing offset control of allocated fingers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2201/00—Indexing scheme relating to details of transmission systems not covered by a single group of H04B3/00 - H04B13/00
    • H04B2201/69—Orthogonal indexing scheme relating to spread spectrum techniques in general
    • H04B2201/707—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation
    • H04B2201/70701—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation featuring pilot assisted reception
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2201/00—Indexing scheme relating to details of transmission systems not covered by a single group of H04B3/00 - H04B13/00
    • H04B2201/69—Orthogonal indexing scheme relating to spread spectrum techniques in general
    • H04B2201/707—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation
    • H04B2201/70707—Efficiency-related aspects
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2201/00—Indexing scheme relating to details of transmission systems not covered by a single group of H04B3/00 - H04B13/00
    • H04B2201/69—Orthogonal indexing scheme relating to spread spectrum techniques in general
    • H04B2201/707—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation
    • H04B2201/70707—Efficiency-related aspects
    • H04B2201/7071—Efficiency-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)
  • Radio Transmission System (AREA)
CNB038209314A 2002-07-03 2003-07-03 用于执行数字调制和解调的灵活方法及装置 Expired - Fee Related CN100349151C (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US39363302P 2002-07-03 2002-07-03
US60/393,633 2002-07-03

Publications (2)

Publication Number Publication Date
CN1678973A CN1678973A (zh) 2005-10-05
CN100349151C true CN100349151C (zh) 2007-11-14

Family

ID=30115615

Family Applications (1)

Application Number Title Priority Date Filing Date
CNB038209314A Expired - Fee Related CN100349151C (zh) 2002-07-03 2003-07-03 用于执行数字调制和解调的灵活方法及装置

Country Status (6)

Country Link
US (5) US20040071199A1 (enExample)
EP (1) EP1540813B1 (enExample)
JP (1) JP4399623B2 (enExample)
CN (1) CN100349151C (enExample)
AU (1) AU2003256386A1 (enExample)
WO (1) WO2004006426A2 (enExample)

Families Citing this family (95)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8670390B2 (en) 2000-11-22 2014-03-11 Genghiscomm Holdings, LLC Cooperative beam-forming in wireless networks
US10931338B2 (en) 2001-04-26 2021-02-23 Genghiscomm Holdings, LLC Coordinated multipoint systems
US10355720B2 (en) 2001-04-26 2019-07-16 Genghiscomm Holdings, LLC Distributed software-defined radio
US9893774B2 (en) 2001-04-26 2018-02-13 Genghiscomm Holdings, LLC Cloud radio access network
US10425135B2 (en) 2001-04-26 2019-09-24 Genghiscomm Holdings, LLC Coordinated multipoint systems
US9819449B2 (en) 2002-05-14 2017-11-14 Genghiscomm Holdings, LLC Cooperative subspace demultiplexing in content delivery networks
AU2003903826A0 (en) * 2003-07-24 2003-08-07 University Of South Australia An ofdm receiver structure
US9628231B2 (en) 2002-05-14 2017-04-18 Genghiscomm Holdings, LLC Spreading and precoding in OFDM
US10142082B1 (en) 2002-05-14 2018-11-27 Genghiscomm Holdings, LLC Pre-coding in OFDM
US10200227B2 (en) 2002-05-14 2019-02-05 Genghiscomm Holdings, LLC Pre-coding in multi-user MIMO
US10644916B1 (en) 2002-05-14 2020-05-05 Genghiscomm Holdings, LLC Spreading and precoding in OFDM
WO2004019510A1 (en) * 2002-08-21 2004-03-04 Koninklijke Philips Electronics N.V. Delay line for multiple propagation paths reception
US8194770B2 (en) 2002-08-27 2012-06-05 Qualcomm Incorporated Coded MIMO systems with selective channel inversion applied per eigenmode
US7796574B2 (en) * 2002-09-10 2010-09-14 Texas Instruments Incorporated Multi-carrier reception for ultra-wideband (UWB) systems
US8208364B2 (en) * 2002-10-25 2012-06-26 Qualcomm Incorporated MIMO system with multiple spatial multiplexing modes
US8169944B2 (en) 2002-10-25 2012-05-01 Qualcomm Incorporated Random access for wireless multiple-access communication systems
US7002900B2 (en) 2002-10-25 2006-02-21 Qualcomm Incorporated Transmit diversity processing for a multi-antenna communication system
US7324429B2 (en) 2002-10-25 2008-01-29 Qualcomm, Incorporated Multi-mode terminal in a wireless MIMO system
US8218609B2 (en) * 2002-10-25 2012-07-10 Qualcomm Incorporated Closed-loop rate control for a multi-channel communication system
US8320301B2 (en) 2002-10-25 2012-11-27 Qualcomm Incorporated MIMO WLAN system
US8570988B2 (en) 2002-10-25 2013-10-29 Qualcomm Incorporated Channel calibration for a time division duplexed communication system
US8134976B2 (en) 2002-10-25 2012-03-13 Qualcomm Incorporated Channel calibration for a time division duplexed communication system
US8170513B2 (en) * 2002-10-25 2012-05-01 Qualcomm Incorporated Data detection and demodulation for wireless communication systems
US20040081131A1 (en) * 2002-10-25 2004-04-29 Walton Jay Rod OFDM communication system with multiple OFDM symbol sizes
US7986742B2 (en) * 2002-10-25 2011-07-26 Qualcomm Incorporated Pilots for MIMO communication system
KR100492091B1 (ko) * 2002-12-10 2005-06-01 삼성전자주식회사 프로그래머블 프로세서에서의 고속 푸리에 변환 연산회로및 연산방법
US7916803B2 (en) 2003-04-10 2011-03-29 Qualcomm Incorporated Modified preamble structure for IEEE 802.11a extensions to allow for coexistence and interoperability between 802.11a devices and higher data rate, MIMO or otherwise extended devices
US8743837B2 (en) * 2003-04-10 2014-06-03 Qualcomm Incorporated Modified preamble structure for IEEE 802.11A extensions to allow for coexistence and interoperability between 802.11A devices and higher data rate, MIMO or otherwise extended devices
DE10334723A1 (de) 2003-07-30 2005-02-24 Bayer Materialscience Ag Neue Bindemittelkombination für hochbeständige Kunststofflacke
US7586884B2 (en) * 2003-08-15 2009-09-08 Qualcomm Incorporated Joint packet detection in wireless communication system with one or more receiver
US7310367B2 (en) * 2003-10-17 2007-12-18 Qualcomm Incorporated Data demodulation for a CDMA communication system
US9473269B2 (en) 2003-12-01 2016-10-18 Qualcomm Incorporated Method and apparatus for providing an efficient control channel structure in a wireless communication system
US7260370B2 (en) * 2003-12-10 2007-08-21 James June-Ming Wang Wireless communication system using a plurality of antenna elements with adaptive weighting and combining techniques
US7787357B2 (en) * 2003-12-18 2010-08-31 Motorola, Inc. OFDM frequency offset estimation apparatus and method
SG126752A1 (en) * 2004-03-05 2006-11-29 Infineon Technologies Ag Protocols for transmission of data, in particular over telephone lines
US7330522B2 (en) * 2004-04-07 2008-02-12 Integrated System Solution Corp. Complementary code keying (CCK) sequentially decoding apparatus and process thereof
EP1751890B1 (en) * 2004-05-27 2017-03-01 QUALCOMM Incorporated Modified preamble structure for ieee 802.11a extensions to allow for coexistence and interoperability between 802.11a devices and higher data rate, mimo or otherwise extended devices
US20050289537A1 (en) * 2004-06-29 2005-12-29 Lee Sam J System and method for installing software on a computing device
US11184037B1 (en) 2004-08-02 2021-11-23 Genghiscomm Holdings, LLC Demodulating and decoding carrier interferometry signals
US11552737B1 (en) 2004-08-02 2023-01-10 Genghiscomm Holdings, LLC Cooperative MIMO
US11431386B1 (en) 2004-08-02 2022-08-30 Genghiscomm Holdings, LLC Transmit pre-coding
US7539241B1 (en) * 2004-10-22 2009-05-26 Xilinx, Inc. Packet detector for a communication system
US7237712B2 (en) * 2004-12-01 2007-07-03 Alfred E. Mann Foundation For Scientific Research Implantable device and communication integrated circuit implementable therein
US8059776B2 (en) * 2005-01-14 2011-11-15 Thomson Licensing Method and system for sub-chip resolution for secondary cell search
BRPI0519320A2 (pt) * 2005-01-14 2009-01-13 Thomson Licensing hardware pesquisador para realizar uma determinaÇço de càdigo de misturaÇço
WO2006078232A1 (en) * 2005-01-14 2006-07-27 Thomson Licensing Hardware-efficient searcher architecture for cdma cellular receivers
EP1836776A1 (en) * 2005-01-14 2007-09-26 Thomson Licensing Ram-based scrambling code generator for cdma
US20070297493A1 (en) * 2005-01-14 2007-12-27 Keel Alton S Efficient Maximal Ratio Combiner for Cdma Systems
US7466749B2 (en) 2005-05-12 2008-12-16 Qualcomm Incorporated Rate selection with margin sharing
US8358714B2 (en) 2005-06-16 2013-01-22 Qualcomm Incorporated Coding and modulation for multiple data streams in a communication system
US8140110B2 (en) * 2005-08-08 2012-03-20 Freescale Semiconductor, Inc. Controlling input and output in a multi-mode wireless processing system
US7653675B2 (en) * 2005-08-08 2010-01-26 Freescale Semiconductor, Inc. Convolution operation in a multi-mode wireless processing system
US7734674B2 (en) 2005-08-08 2010-06-08 Freescale Semiconductor, Inc. Fast fourier transform (FFT) architecture in a multi-mode wireless processing system
US7802259B2 (en) * 2005-08-08 2010-09-21 Freescale Semiconductor, Inc. System and method for wireless broadband context switching
US20070033349A1 (en) * 2005-08-08 2007-02-08 Freescale Semiconductor, Inc. Multi-mode wireless processor interface
US20070140292A1 (en) * 2005-12-17 2007-06-21 Sestok Charles K Iv De-interleaver synchronization methods and apparatus
KR100906333B1 (ko) * 2006-01-11 2009-07-06 삼성전자주식회사 공간분할 다중접속 시스템에서 무선주파수 밴드 자원을 병합하여 할당하는 장치 및 방법
FR2899408B1 (fr) 2006-03-29 2008-07-18 Airbus France Sas Procedes d'emission et de reception de donnees, en particulier pour des echanges securises entre un aeronef et une base au sol, dispositifs associes et aeronef equipe de tels dispositifs
US8612504B2 (en) 2006-04-04 2013-12-17 Qualcomm Incorporated IFFT processing in wireless communications
US8543629B2 (en) * 2006-04-04 2013-09-24 Qualcomm Incorporated IFFT processing in wireless communications
KR100773332B1 (ko) * 2006-04-11 2007-11-05 한국전자통신연구원 변조 장치, 복조 장치 및 무선 모뎀
SG136813A1 (en) * 2006-04-11 2007-11-29 Sony Corp A method for estimating one or more parameters of a ultra wideband signal and a receiver system for receiving ultra wideband signals
US8743676B2 (en) 2006-05-10 2014-06-03 Apple Inc. Methods and systems for scheduling OFDM frames
US7839958B2 (en) * 2006-05-30 2010-11-23 Fujitsu Limited System and method for the adjustment of compensation applied to a signal
US7907673B2 (en) * 2006-10-26 2011-03-15 Telefonaktiebolaget L M Ericsson (Publ) Robust and low-complexity combined signal power estimation
US7929624B2 (en) * 2006-10-26 2011-04-19 Telefonaktiebolaget L M Ericsson (Publ) Cell ID detection in cellular communication systems
WO2009093233A2 (en) * 2008-01-22 2009-07-30 Provigent Ltd. Beamforming in mimo communication systems
US8126408B2 (en) * 2008-01-22 2012-02-28 Provigent Ltd Multi-mode wireless communication link
US7965799B2 (en) * 2008-02-25 2011-06-21 Xilinx, Inc. Block boundary detection for a wireless communication system
KR101105399B1 (ko) * 2008-12-22 2012-01-17 한국전자통신연구원 직교주파수분할다중접속 시스템의 시간 동기 검출 장치 및 방법과 수신 장치
US8547941B2 (en) * 2009-04-16 2013-10-01 Qualcomm Incorporated Apparatus and method for improving WLAN spectrum efficiency and reducing interference by flow control
US8250431B2 (en) * 2009-07-30 2012-08-21 Lsi Corporation Systems and methods for phase dependent data detection in iterative decoding
KR101510454B1 (ko) * 2010-09-20 2015-04-15 한국전자통신연구원 대역통과 샘플링 수신기 및 그것의 필터 설계 및 재구성 방법
CN102487286B (zh) * 2010-12-01 2014-08-13 中兴通讯股份有限公司 一种数据处理方法及装置
WO2012099561A1 (en) * 2011-01-18 2012-07-26 Thomson Licensing Method and apparatus for accelerated spectrum sensing of digital television signals
US8792601B2 (en) 2011-10-04 2014-07-29 Qualcomm Incorporated Non-coherent combining detection with reduced buffering requirements
US9031117B2 (en) * 2012-12-06 2015-05-12 Qualcomm Incorporated Methods and apparatus for handling fingers with large delay spread through utility optimization
US9350588B2 (en) * 2012-12-14 2016-05-24 Telefonaktiebolaget Lm Ericsson (Publ) Receiver for multi carrier modulated signals
US9130786B2 (en) * 2013-03-15 2015-09-08 Qualcomm Incorporated Device and method for computing a channel estimate
WO2015085511A1 (zh) * 2013-12-11 2015-06-18 海能达通信股份有限公司 一种基于时分多址通信系统的通信方法及终端
US12224860B1 (en) 2014-01-30 2025-02-11 Genghiscomm Holdings, LLC Linear coding in decentralized networks
US10355964B2 (en) 2014-10-31 2019-07-16 At&T Intellectual Property I, L.P. Method and system to capture selected network data
CN106293624A (zh) * 2015-05-23 2017-01-04 上海芯豪微电子有限公司 一种数据地址产生系统和方法
US11005809B2 (en) * 2016-03-29 2021-05-11 Motorola Solutions, Inc. Methods, devices, and systems for generating a plurality of network addresses for a plurality of communication devices
US10637705B1 (en) 2017-05-25 2020-04-28 Genghiscomm Holdings, LLC Peak-to-average-power reduction for OFDM multiple access
US10243773B1 (en) 2017-06-30 2019-03-26 Genghiscomm Holdings, LLC Efficient peak-to-average-power reduction for OFDM and MIMO-OFDM
US11343823B2 (en) 2020-08-16 2022-05-24 Tybalt, Llc Orthogonal multiple access and non-orthogonal multiple access
US12206535B1 (en) 2018-06-17 2025-01-21 Tybalt, Llc Artificial neural networks in wireless communication systems
EP3915236A4 (en) 2019-01-25 2023-05-24 Genghiscomm Holdings, LLC ORTHOGONAL MULTI-ACCESS AND NON-ORTHOGONAL MULTI-ACCESS
WO2020227865A1 (en) * 2019-05-10 2020-11-19 Qualcomm Incorporated Methods and apparatus to facilitate outlying subcarrier reduction for overlapping frequency resources of different radio access technologies
CN110308889B (zh) * 2019-05-14 2021-01-12 北京思朗科技有限责任公司 调制处理装置及方法
WO2020242898A1 (en) 2019-05-26 2020-12-03 Genghiscomm Holdings, LLC Non-orthogonal multiple access
US11411593B2 (en) * 2020-04-29 2022-08-09 Eagle Technology, Llc Radio frequency (RF) system including programmable processing circuit performing butterfly computations and related methods
US11502715B2 (en) * 2020-04-29 2022-11-15 Eagle Technology, Llc Radio frequency (RF) system including programmable processing circuit performing block coding computations and related methods
WO2023033828A1 (en) * 2021-09-02 2023-03-09 Zeku, Inc. Apparatus and method of parallel sample stream processing for radio frequency chip calibration

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999049586A2 (en) * 1998-01-16 1999-09-30 Intersil Corporation Spread spectrum transceiver for use in wireless local area network and having multipath mitigation
WO2000051013A2 (en) * 1999-02-26 2000-08-31 Microsoft Corporation A system and method for producing modulated complex lapped transforms
CN1280685A (zh) * 1997-10-03 2001-01-17 卡纳尔股份有限公司 调制解调器的控制方法

Family Cites Families (48)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4347580A (en) 1980-07-21 1982-08-31 The United States Of America As Represented By The Secretary Of The Navy Array convolver/correlator
US4484028A (en) 1982-11-01 1984-11-20 Motorola, Inc. Digital loop transceiver having a power up/down circuit
US4550414A (en) * 1983-04-12 1985-10-29 Charles Stark Draper Laboratory, Inc. Spread spectrum adaptive code tracker
US4675754A (en) * 1984-02-21 1987-06-23 Mitsubishi Denki Kabushiki Kaisha Magnetic recorder/reproducer
AR242675A1 (es) 1985-10-11 1993-04-30 Ibm Una disposiciones de almacenamiento intermedio de voz
US4991088A (en) * 1988-11-30 1991-02-05 Vlsi Technology, Inc. Method for optimizing utilization of a cache memory
US5164959A (en) 1991-01-22 1992-11-17 Hughes Aircraft Company Digital equalization method and apparatus
US5838671A (en) 1995-06-23 1998-11-17 Ntt Mobile Communications Network Inc. Method and apparatus for call admission control in CDMA mobile communication system
US5864714A (en) 1996-04-16 1999-01-26 Comsys Communication & Signal Processing Ltd. Communication system which dynamically switches sizes of sample buffer between first size for quick response time and second size for robustness to interrupt latency
JP3235460B2 (ja) 1996-04-26 2001-12-04 松下電器産業株式会社 Ｆｍ多重情報受信装置
US5732251A (en) * 1996-05-06 1998-03-24 Advanced Micro Devices DSP with register file and multi-function instruction sequencer for vector processing by MACU
US6130602A (en) * 1996-05-13 2000-10-10 Micron Technology, Inc. Radio frequency data communications device
US6108372A (en) * 1996-10-30 2000-08-22 Qualcomm Inc. Method and apparatus for decoding variable rate data using hypothesis testing to determine data rate
US6122444A (en) 1996-11-27 2000-09-19 Intel Corporation Method and apparatus for manipulation of digital data in multiple parallel but incongruent buffers
DE69837299T2 (de) 1997-01-22 2007-06-28 Matsushita Electric Industrial Co., Ltd., Kadoma System und Verfahren zur schnellen Fourier-Transformation
US5892980A (en) * 1997-02-28 1999-04-06 Comsys Communication And Signal Processing Ltd. System for dynamically changing the length of transmit and receive sample buffers utilizing previous responding to an interrupt in a communications system
US6122703A (en) * 1997-08-15 2000-09-19 Amati Communications Corporation Generalized fourier transform processing system
JPH11120156A (ja) * 1997-10-17 1999-04-30 Nec Corp マルチプロセッサシステムにおけるデータ通信方式
US6167062A (en) 1998-02-02 2000-12-26 Tellabs Operations, Inc. System and associated method for the synchronization and control of multiplexed payloads over a telecommunications network
US6351714B1 (en) * 1998-03-03 2002-02-26 Entek Ird International Corporation Order tracking signal sampling process
US6748010B1 (en) * 1998-10-13 2004-06-08 Qualcomm Incorporated Combined searching and page monitoring using offline sample storage
US6304978B1 (en) * 1998-11-24 2001-10-16 Intel Corporation Method and apparatus for control of the rate of change of current consumption of an electronic component
JP3777475B2 (ja) 1999-02-24 2006-05-24 株式会社日立国際電気 スペクトラム拡散通信用相関回路及び復調回路及び受信装置
US6496795B1 (en) 1999-05-05 2002-12-17 Microsoft Corporation Modulated complex lapped transform for integrated signal enhancement and coding
US6356581B1 (en) * 1999-05-28 2002-03-12 Philips Electronics North American Corporation Efficient method of providing symbol data from demodulator to a processor
US6714527B2 (en) 1999-09-21 2004-03-30 Interdigital Techology Corporation Multiuser detector for variable spreading factors
US6577649B1 (en) 1999-11-12 2003-06-10 International Business Machines Corporation Multiplexer for asynchronous data
US6519108B2 (en) * 1999-12-01 2003-02-11 International Business Machines Corporation Method and apparatus for testing MR head instability using a criterion that removes normal head fluctuation from consideration
DE69930224T2 (de) * 1999-12-10 2006-12-14 Lucent Technologies Inc. Zeitmultiplex Rake-Finger für WCDMA
US6650694B1 (en) * 2000-02-18 2003-11-18 Texas Instruments Incorporated Correlator co-processor for CDMA RAKE receiver operations
US7027447B2 (en) * 2000-02-29 2006-04-11 Texas Instruments Incorporated Communications interface between clock domains with minimal latency
US6615307B1 (en) 2000-05-10 2003-09-02 Micron Technology, Inc. Flash with consistent latency for read operations
JP2001333002A (ja) 2000-05-24 2001-11-30 Ntt Docomo Inc 移動通信システムにおける送信アンテナウェイト推定方法および移動通信端末
US6721295B1 (en) 2000-08-25 2004-04-13 Texas Instruments Incorporated Triple data system for high data rate communication systems
US6928575B2 (en) * 2000-10-12 2005-08-09 Matsushita Electric Industrial Co., Ltd. Apparatus for controlling and supplying in phase clock signals to components of an integrated circuit with a multiprocessor architecture
US6985516B1 (en) 2000-11-27 2006-01-10 Qualcomm Incorporated Method and apparatus for processing a received signal in a communications system
US6834075B2 (en) 2001-01-12 2004-12-21 Motorola, Inc. Method for improving multipath searcher speed
JP2002215599A (ja) * 2001-01-18 2002-08-02 Mitsubishi Electric Corp マルチプロセッサシステムおよびその制御方法
US6650140B2 (en) * 2001-03-19 2003-11-18 Altera Corporation Programmable logic device with high speed serial interface circuitry
US6834074B2 (en) * 2001-05-23 2004-12-21 Texas Instruments Incorporated Method of time tracking in a vector correlator based rake receiver
US7190749B2 (en) * 2001-06-06 2007-03-13 Qualcomm Incorporated Method and apparatus for canceling pilot interference in a wireless communication system
US6950642B2 (en) * 2001-07-03 2005-09-27 Microsoft Corporation System and method for reducing noise in a recording receiver
US6795489B2 (en) * 2001-08-09 2004-09-21 Qualcomm Inc. Acquisition of a gated pilot
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
JP3871540B2 (ja) 2001-10-05 2007-01-24 富士通株式会社 受信装置および半導体装置
US7039000B2 (en) * 2001-11-16 2006-05-02 Mitsubishi Electric Research Laboratories, Inc. Timing synchronization for OFDM-based wireless networks
US7756085B2 (en) 2001-11-20 2010-07-13 Qualcomm Incorporated Steps one and three W-CDMA and multi-mode searching
US7061967B2 (en) * 2002-06-24 2006-06-13 Comsys Communication & Signal Processing Ltd. Multipath channel tap delay estimation in a CDMA spread spectrum receiver

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1280685A (zh) * 1997-10-03 2001-01-17 卡纳尔股份有限公司 调制解调器的控制方法
WO1999049586A2 (en) * 1998-01-16 1999-09-30 Intersil Corporation Spread spectrum transceiver for use in wireless local area network and having multipath mitigation
WO2000051013A2 (en) * 1999-02-26 2000-08-31 Microsoft Corporation A system and method for producing modulated complex lapped transforms

Also Published As

Publication number Publication date
US7406102B2 (en) 2008-07-29
JP4399623B2 (ja) 2010-01-20
CN1678973A (zh) 2005-10-05
WO2004006426A9 (en) 2004-06-24
WO2004006426A3 (en) 2004-04-01
US20040071199A1 (en) 2004-04-15
US7596134B2 (en) 2009-09-29
AU2003256386A1 (en) 2004-01-23
US20040004995A1 (en) 2004-01-08
JP2005532741A (ja) 2005-10-27
US20040071104A1 (en) 2004-04-15
EP1540813B1 (en) 2018-10-10
US20040004997A1 (en) 2004-01-08
EP1540813A4 (en) 2011-05-25
WO2004006426A2 (en) 2004-01-15
AU2003256386A8 (en) 2004-01-23
US20040047405A1 (en) 2004-03-11
EP1540813A2 (en) 2005-06-15
US7702035B2 (en) 2010-04-20
US7912999B2 (en) 2011-03-22

Similar Documents

Publication Publication Date Title
CN100349151C (zh) 用于执行数字调制和解调的灵活方法及装置
KR100938022B1 (ko) 통신 시스템에서 수신 신호를 처리하기 위한 방법 및 장치
JP4642264B2 (ja) スペクトル拡散通信用相関回路
CA2263676C (en) Symbol-matched filter having a low silicon and power requirement
JP3204925B2 (ja) Ｃｄｍａ通信システムにおける信号受信装置
US8218604B2 (en) Interference canceling CDMA mobile station receiver
JP2002540714A (ja) プログラマブル整合フィルタサーチャ
WO2001059962A1 (en) Integrated beamforming/rake/mud cdma receiver architecture
WO2004073198A1 (en) Efficient back-end channel matched filter (cmf)
JP2001285140A (ja) Ｃｄｍａｒａｋｅ受信機動作用相関器コプロセッサ
US20020154713A1 (en) Reduction of linear interference canceling scheme
CN1223124C (zh) 在cdma瑞克接受机中保持定时的方法
van Berkel et al. VECTOR PROCESSING AS AN ENABLER FOR SOFTW ARE-DEFINED RADIO IN HANDSETS FROM 3G+ W LAN ONW ARDS
JP2004531135A (ja) Ｃｄｍａシステムにおけるチップレート処理のための方法および装置
Lingwood et al. ASIC implementation of a direct-sequence spread-spectrum RAKE-receiver
JP3573745B2 (ja) Ｃｄｍａ受信装置およびｃｄｍａ受信方法
KR100669904B1 (ko) 초광대역 시스템용 레이크 수신기 및 이를 구비한 수신장치
Harju et al. A baseband receiver architecture for UMTS-WLAN interworking applications
JP2000244378A (ja) スペクトラム拡散通信用相関回路及び復調回路及び受信装置
CN100452672C (zh) 接收器
Liu et al. Programmable Baseband Processors
WO2006078232A1 (en) Hardware-efficient searcher architecture for cdma cellular receivers
Rauwerda et al. Adaptation in the physical layer using heterogeneous reconfigurable hardware
Grant et al. Optimising the Implementation of a FFT-based Multicarrier CDMA receiver

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
ASS Succession or assignment of patent right

Owner name: FREESCALE SEMICONDUCTOR INC.

Free format text: FORMER OWNER: KEMOSAIC CO., LTD.

Effective date: 20080919

C41 Transfer of patent application or patent right or utility model
C56 Change in the name or address of the patentee

Owner name: KEMOSAIC CO., LTD.

Free format text: FORMER NAME OR ADDRESS: COMMASIC INC

CP01 Change in the name or title of a patent holder

Address after: California, USA

Patentee after: Koma Seck LLC

Address before: California, USA

Patentee before: Komasek GmbH

TR01 Transfer of patent right

Effective date of registration: 20080919

Address after: Texas, USA

Patentee after: FREESCALE SEMICONDUCTOR, Inc.

Address before: California, USA

Patentee before: Koma Seck LLC

ASS Succession or assignment of patent right

Owner name: APPLE COMPUTER, INC.

Free format text: FORMER OWNER: TIANDING INVESTMENT CO., LTD.

Effective date: 20150623

Owner name: TIANDING INVESTMENT CO., LTD.

Free format text: FORMER OWNER: FISICAL SEMICONDUCTOR INC.

Effective date: 20150623

C41 Transfer of patent application or patent right or utility model
TR01 Transfer of patent right

Effective date of registration: 20150623

Address after: American California

Patentee after: APPLE Inc.

Address before: American California

Patentee before: Zenith investment LLC

Effective date of registration: 20150623

Address after: American California

Patentee after: Zenith investment LLC

Address before: Texas, USA

Patentee before: FREESCALE SEMICONDUCTOR, Inc.

CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20071114