DE69725935D1 - Verfahren und Gerät zum Empfangen von CDMA Funkübertragungssignalen - Google Patents

Verfahren und Gerät zum Empfangen von CDMA Funkübertragungssignalen

Info

Publication number
DE69725935D1
DE69725935D1 DE69725935T DE69725935T DE69725935D1 DE 69725935 D1 DE69725935 D1 DE 69725935D1 DE 69725935 T DE69725935 T DE 69725935T DE 69725935 T DE69725935 T DE 69725935T DE 69725935 D1 DE69725935 D1 DE 69725935D1
Authority
DE
Germany
Prior art keywords
radio transmission
transmission signals
cdma radio
receiving cdma
receiving
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
DE69725935T
Other languages
English (en)
Other versions
DE69725935T2 (de
Inventor
Hirofumi Takagi
Akihiro Higashi
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.)
NTT Docomo Inc
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone Corp
NTT Mobile Communications Networks 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 Nippon Telegraph and Telephone Corp, NTT Mobile Communications Networks Inc filed Critical Nippon Telegraph and Telephone Corp
Publication of DE69725935D1 publication Critical patent/DE69725935D1/de
Application granted granted Critical
Publication of DE69725935T2 publication Critical patent/DE69725935T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • 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
    • H04B1/7073—Synchronisation aspects
    • H04B1/7083—Cell search, e.g. using a three-step approach
    • 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
    • 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
    • H04B1/709—Correlator structure
    • 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
DE69725935T 1996-07-24 1997-07-21 Verfahren und Gerät zum Empfangen von CDMA Funkübertragungssignalen Expired - Lifetime DE69725935T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP19452596 1996-07-24
JP19452596 1996-07-24

Publications (2)

Publication Number Publication Date
DE69725935D1 true DE69725935D1 (de) 2003-12-11
DE69725935T2 DE69725935T2 (de) 2004-08-12

Family

ID=16325990

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69725935T Expired - Lifetime DE69725935T2 (de) 1996-07-24 1997-07-21 Verfahren und Gerät zum Empfangen von CDMA Funkübertragungssignalen

Country Status (6)

Country Link
US (1) US6188682B1 (de)
EP (1) EP0821495B1 (de)
KR (1) KR100256028B1 (de)
CN (1) CN1133295C (de)
CA (1) CA2210582C (de)
DE (1) DE69725935T2 (de)

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JP3097664B2 (ja) * 1998-06-09 2000-10-10 日本電気株式会社 Ｃｄｍａ通信のベ−スバンド処理回路
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US6519237B1 (en) * 1999-05-28 2003-02-11 Koninklijke Philips Electronics N.V. Apparatus and method for parallel searching and correlating for CDMA system
JP3570671B2 (ja) * 1999-07-12 2004-09-29 富士通株式会社 無線通信装置
JP3381676B2 (ja) * 1999-09-06 2003-03-04 日本電気株式会社 Ｃｄｍａ受信端末
JP3279297B2 (ja) * 1999-09-24 2002-04-30 日本電気株式会社 Ｃｄｍａ移動通信受信方式におけるサーチ方法および受信装置
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US7227884B2 (en) 2000-02-28 2007-06-05 Aeroastro, Inc. Spread-spectrum receiver with progressive fourier transform
US6985512B1 (en) 2000-02-28 2006-01-10 Aeroastro, Inc. Asynchronous spread-spectrum communications
US7433391B2 (en) * 2000-02-28 2008-10-07 Aeroastro, Inc. Spread-spectrum receiver with fast M-sequence transform
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EP1133077A1 (de) * 2000-03-10 2001-09-12 Mitsubishi Electric Information Technology Centre Europe B.V. Verfahren zur Synchronisation von Basisstationen und eine Mobilstation in einem zellularen Kommunikationssystem
US7236500B1 (en) * 2000-12-19 2007-06-26 Intel Corporation Demodulation of multi-user, multi-protocol data in a reconfigurable datapath
US6567393B2 (en) * 2001-02-27 2003-05-20 Nokia Networks Oy Dynamic reselection of CDMA spreading codes
US7752419B1 (en) 2001-03-22 2010-07-06 Qst Holdings, Llc Method and system for managing hardware resources to implement system functions using an adaptive computing architecture
US7249242B2 (en) 2002-10-28 2007-07-24 Nvidia Corporation Input pipeline registers for a node in an adaptive computing engine
US6836839B2 (en) 2001-03-22 2004-12-28 Quicksilver Technology, Inc. Adaptive integrated circuitry with heterogeneous and reconfigurable matrices of diverse and adaptive computational units having fixed, application specific computational elements
US7653710B2 (en) 2002-06-25 2010-01-26 Qst Holdings, Llc. Hardware task manager
US7962716B2 (en) 2001-03-22 2011-06-14 Qst Holdings, Inc. Adaptive integrated circuitry with heterogeneous and reconfigurable matrices of diverse and adaptive computational units having fixed, application specific computational elements
US6577678B2 (en) 2001-05-08 2003-06-10 Quicksilver Technology Method and system for reconfigurable channel coding
US6618434B2 (en) 2001-05-31 2003-09-09 Quicksilver Technology, Inc. Adaptive, multimode rake receiver for dynamic search and multipath reception
KR100479169B1 (ko) * 2001-10-26 2005-03-25 삼성전자주식회사 이동 통신 시스템의 셀 탐색 장치 및 방법
US7046635B2 (en) 2001-11-28 2006-05-16 Quicksilver Technology, Inc. System for authorizing functionality in adaptable hardware devices
US8412915B2 (en) 2001-11-30 2013-04-02 Altera Corporation Apparatus, system and method for configuration of adaptive integrated circuitry having heterogeneous computational elements
US6986021B2 (en) 2001-11-30 2006-01-10 Quick Silver Technology, Inc. Apparatus, method, system and executable module for configuration and operation of adaptive integrated circuitry having fixed, application specific computational elements
US7215701B2 (en) 2001-12-12 2007-05-08 Sharad Sambhwani Low I/O bandwidth method and system for implementing detection and identification of scrambling codes
KR100411585B1 (ko) * 2001-12-27 2003-12-18 한국전자통신연구원 이중 코드 발생기를 이용한 다중경로 탐색 장치 및 그탐색 방법
US7403981B2 (en) 2002-01-04 2008-07-22 Quicksilver Technology, Inc. Apparatus and method for adaptive multimedia reception and transmission in communication environments
US7660984B1 (en) 2003-05-13 2010-02-09 Quicksilver Technology Method and system for achieving individualized protected space in an operating system
US7328414B1 (en) 2003-05-13 2008-02-05 Qst Holdings, Llc Method and system for creating and programming an adaptive computing engine
US7593367B2 (en) * 2002-06-14 2009-09-22 Qualcomm Incorporated Frequency scan for CDMA acquisition
CN1679249A (zh) * 2002-08-29 2005-10-05 皇家飞利浦电子股份有限公司 用于多频通信系统的收发机设备、多频通信系统的基站、使用收发机设备的方法、多频通信系统中收发多频信号的方法
US8108656B2 (en) 2002-08-29 2012-01-31 Qst Holdings, Llc Task definition for specifying resource requirements
US20040066841A1 (en) * 2002-09-23 2004-04-08 Elias Jonsson Systems, methods of operating, and computer program products for selecting delays for a rake receiver based on signal to interference ratios and/or powers
US7937591B1 (en) 2002-10-25 2011-05-03 Qst Holdings, Llc Method and system for providing a device which can be adapted on an ongoing basis
US8276135B2 (en) 2002-11-07 2012-09-25 Qst Holdings Llc Profiling of software and circuit designs utilizing data operation analyses
US7225301B2 (en) 2002-11-22 2007-05-29 Quicksilver Technologies External memory controller node
JP4123364B2 (ja) * 2003-02-07 2008-07-23 日本電気株式会社 Ｃｄｍａ受信装置
KR100547737B1 (ko) * 2003-06-10 2006-01-31 삼성전자주식회사 직접시퀀스 부호분할다중접속 이동통신시스템에서 레이크수신장치 및 방법
US7586974B2 (en) 2004-10-19 2009-09-08 Telefonaktiebolaget L M Ericsson (Publ) Method and apparatus for rake finger allocation in a DS-CDMA receiver
US7590389B2 (en) * 2005-02-14 2009-09-15 Ipwireless, Inc. Radio link quality determination in a wireless network
US7592953B2 (en) * 2005-12-30 2009-09-22 Comtech Mobile Datacom Corporation Mobile satellite communications
US8275080B2 (en) * 2006-11-17 2012-09-25 Comtech Mobile Datacom Corporation Self-supporting simplex packets
US7899110B1 (en) 2006-12-27 2011-03-01 Marvell International Ltd. Bit sync for receiver with multiple antennas
JP5209046B2 (ja) * 2007-05-23 2013-06-12 アギア システムズ インコーポレーテッド 単一及び複数の無線技術通信システムにおいて移動体デバイスの時間節約型セル検索のためのシステム及び方法
US8284749B2 (en) * 2008-03-10 2012-10-09 Comtech Mobile Datacom Corporation Time slot synchronized, flexible bandwidth communication system
US9106364B1 (en) 2009-01-26 2015-08-11 Comtech Mobile Datacom Corporation Signal processing of a high capacity waveform
US8548107B1 (en) 2009-01-26 2013-10-01 Comtech Mobile Datacom Corporation Advanced multi-user detector
US8675711B1 (en) 2009-09-25 2014-03-18 Comtech Mobile Datacom Corporation System and methods for dynamic spread spectrum usage
US9276629B2 (en) * 2011-11-17 2016-03-01 Intel Deutschland Gmbh Rake receiver circuit and method for operating a rake receiver circuit

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FI934759A (fi) * 1993-10-27 1995-04-28 Nokia Telecommunications Oy Menetelmä monikäyttöhäiriön poistamiseksi sekä liikkuva asema
JP2655068B2 (ja) * 1993-12-30 1997-09-17 日本電気株式会社 スペクトラム拡散受信機
US5511067A (en) * 1994-06-17 1996-04-23 Qualcomm Incorporated Layered channel element in a base station modem for a CDMA cellular communication system
GB2291567B (en) 1994-07-01 1999-02-24 Roke Manor Research Apparatus for use in equipment providing a digital radio link between a fixed and a mobile radio unit
FI943249A (fi) 1994-07-07 1996-01-08 Nokia Mobile Phones Ltd Menetelmä vastaanottimen ohjaamiseksi ja vastaanotin
JP2605648B2 (ja) * 1994-12-22 1997-04-30 日本電気株式会社 Ｓｓ受信機における逆拡散符号位相検出装置
JP3274337B2 (ja) * 1995-12-27 2002-04-15 株式会社東芝 Ｃｄｍａセルラ無線システム
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Also Published As

Publication number Publication date
EP0821495A2 (de) 1998-01-28
KR100256028B1 (ko) 2000-05-01
CA2210582A1 (en) 1998-01-24
CN1175141A (zh) 1998-03-04
EP0821495A3 (de) 1999-04-28
CN1133295C (zh) 2003-12-31
KR980012989A (ko) 1998-04-30
US6188682B1 (en) 2001-02-13
CA2210582C (en) 2001-01-30
DE69725935T2 (de) 2004-08-12
EP0821495B1 (de) 2003-11-05

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Legal Events

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8364 No opposition during term of opposition