TW200713868A - Data detection for codes with non-uniform spreading factors - Google Patents

Data detection for codes with non-uniform spreading factors

Info

Publication number
TW200713868A
TW200713868A TW095117734A TW95117734A TW200713868A TW 200713868 A TW200713868 A TW 200713868A TW 095117734 A TW095117734 A TW 095117734A TW 95117734 A TW95117734 A TW 95117734A TW 200713868 A TW200713868 A TW 200713868A
Authority
TW
Taiwan
Prior art keywords
spreading factor
data
estimated
symbols
codes
Prior art date
Application number
TW095117734A
Other languages
English (en)
Other versions
TWI316336B (en
Inventor
Ariela Zeira
Original Assignee
Interdigital Tech Corp
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 Interdigital Tech Corp filed Critical Interdigital Tech Corp
Publication of TW200713868A publication Critical patent/TW200713868A/zh
Application granted granted Critical
Publication of TWI316336B publication Critical patent/TWI316336B/zh

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/0007—Code type
    • H04J13/004—Orthogonal
    • H04J13/0044—OVSF [orthogonal variable spreading factor]
    • 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
    • H04B1/7085—Synchronisation aspects using a code tracking loop, e.g. a delay-locked 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
    • 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
    • H04B1/7103—Interference-related aspects the interference being multiple access interference
    • H04B1/7105—Joint detection techniques, e.g. linear detectors
    • 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
    • H04B2201/70703—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation using multiple or variable rates
TW095117734A 2002-05-22 2003-05-19 Data detection for codes with non-uniform spreading factors TWI316336B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10/154,108 US7003019B2 (en) 2002-05-22 2002-05-22 Data detection for codes with non-uniform spreading factors

Publications (2)

Publication Number Publication Date
TW200713868A true TW200713868A (en) 2007-04-01
TWI316336B TWI316336B (en) 2009-10-21

Family

ID=29548793

Family Applications (4)

Application Number Title Priority Date Filing Date
TW093104016A TWI338466B (en) 2002-05-22 2003-05-19 User equipment for data detection for codes with non-uniform spreading
TW098115059A TW201014215A (en) 2002-05-22 2003-05-19 Data detection for codes with non-uniform spreading factors
TW092113513A TWI247502B (en) 2002-05-22 2003-05-19 Method, user equipment and base station for data detection for codes with non-uniform spreading factors
TW095117734A TWI316336B (en) 2002-05-22 2003-05-19 Data detection for codes with non-uniform spreading factors

Family Applications Before (3)

Application Number Title Priority Date Filing Date
TW093104016A TWI338466B (en) 2002-05-22 2003-05-19 User equipment for data detection for codes with non-uniform spreading
TW098115059A TW201014215A (en) 2002-05-22 2003-05-19 Data detection for codes with non-uniform spreading factors
TW092113513A TWI247502B (en) 2002-05-22 2003-05-19 Method, user equipment and base station for data detection for codes with non-uniform spreading factors

Country Status (11)

Country Link
US (1) US7003019B2 (zh)
EP (1) EP1510014A4 (zh)
JP (1) JP4221359B2 (zh)
KR (3) KR20050004191A (zh)
CN (1) CN1656705B (zh)
AU (1) AU2003273162A1 (zh)
CA (1) CA2486745A1 (zh)
MX (1) MXPA04011602A (zh)
NO (1) NO20045292L (zh)
TW (4) TWI338466B (zh)
WO (1) WO2003101001A1 (zh)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6741653B2 (en) * 2002-07-01 2004-05-25 Interdigital Technology Corporation Data detection for codes with non-uniform spreading factors
KR100557102B1 (ko) * 2002-09-07 2006-03-03 삼성전자주식회사 이동통신 시스템에서 직교부호의 길이에 상관없는 공동검출 수신 장치 및 방법
US7161973B2 (en) * 2002-12-17 2007-01-09 Sbc Properties, L.P. Pilot aided adaptive minimum mean square interference cancellation and detection
US7599344B2 (en) 2004-06-08 2009-10-06 Interdigital Technology Corporation Method and apparatus for reducing multi-user processing in wireless communication systems
FI20055314A0 (fi) * 2005-06-15 2005-06-15 Nokia Corp Lähetysparametrien ja hajotuskertoimien samanaikainen ilmaisu CDMA-viestintäjärjestelmässä
WO2007084030A1 (en) * 2006-01-17 2007-07-26 Telefonaktiebolaget Lm Ericsson (Publ) Method and arrangement for despreading in a communication system
JP6149356B2 (ja) * 2012-06-29 2017-06-21 株式会社Ｓｏｋｅｎ 無線通信システム
WO2015137779A1 (en) 2014-03-14 2015-09-17 Samsung Electronics Co., Ltd. Method and apparatus for encoding and decoding packet
CN114095056B (zh) * 2021-11-04 2023-07-11 深圳供电局有限公司 数据传输方法、装置、设备及存储介质

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3286189B2 (ja) * 1996-11-14 2002-05-27 松下電器産業株式会社 アルゴリズムダイバーシチを用いた受信装置
DE19852571C1 (de) * 1998-11-13 2000-06-21 Siemens Ag Verfahren zur Datenübertragung in einem Funk-Kommunikationssystem mit CDMA-Teilnehmerseparierung und variablen Spreizfaktoren
JP2000341173A (ja) * 1999-03-23 2000-12-08 Matsushita Electric Ind Co Ltd 無線受信装置及び無線受信方法
JP4032584B2 (ja) * 1999-11-30 2008-01-16 三菱電機株式会社 スペクトル拡散復調装置
US6532250B1 (en) * 1999-12-21 2003-03-11 Telefonaktiebolaget Lm Ericsson (Publ) Methods and apparatus for spreading and despreading information signals in code division multiple access communications systems
GB9930801D0 (en) * 1999-12-30 2000-02-16 Nokia Networks Oy Spreading factor determination
DE10003734A1 (de) * 2000-01-28 2001-08-02 Bosch Gmbh Robert Detektionsverfahren und -vorrichtung
GB2359966A (en) 2000-03-01 2001-09-05 Roke Manor Research Post processing of spreading codes in a mobile telecommunications system
JP2001267959A (ja) * 2000-03-17 2001-09-28 Fujitsu Ltd Ｃｄｍａ受信装置
US6879576B1 (en) * 2000-09-06 2005-04-12 Qualcomm Incorporated Method and apparatus for processing a physical channel with partial transport format information
CN1171408C (zh) * 2000-10-18 2004-10-13 中兴通讯股份有限公司 一种wcdma系统中实时产生信道码序列的方法和装置
KR100402786B1 (ko) * 2001-07-30 2003-10-22 한국전자통신연구원 무선 통신 단말기에서의 전송율 정보 매핑 장치 및 그 방법

Also Published As

Publication number Publication date
CN1656705A (zh) 2005-08-17
WO2003101001A1 (en) 2003-12-04
KR20050088169A (ko) 2005-09-01
TWI338466B (en) 2011-03-01
CA2486745A1 (en) 2003-12-04
US20030219065A1 (en) 2003-11-27
NO20045292L (no) 2005-02-07
AU2003273162A1 (en) 2003-12-12
US7003019B2 (en) 2006-02-21
TW200401526A (en) 2004-01-16
MXPA04011602A (es) 2005-03-07
TWI247502B (en) 2006-01-11
EP1510014A4 (en) 2009-04-29
CN1656705B (zh) 2010-05-12
TW200509563A (en) 2005-03-01
EP1510014A1 (en) 2005-03-02
TW201014215A (en) 2010-04-01
JP2005526462A (ja) 2005-09-02
JP4221359B2 (ja) 2009-02-12
TWI316336B (en) 2009-10-21
KR20050004191A (ko) 2005-01-12
KR20070061925A (ko) 2007-06-14

Similar Documents

Publication Publication Date Title
WO2008042672A3 (en) Code reuse multiple access for satellite return link
TW200723721A (en) Scaling using gain factors for use in data detection for wireless code division multiple access communication systems
AU2003254673A1 (en) Method and apparatus for position sensing
HK1121321A1 (en) De-coupling forward and reverse link assignment for multi-carrier wireless communication systems
BR0013889A (pt) Método para uso em um sistema de comunicação de espectro espalhado que tem uma pluralidade de antenas de transmissão, e, sistema de comunicação de espectro espalhado
TW200623675A (en) Configuring a mimo communication
TW200731715A (en) Method and transmission unit for coding, modulating and transmitting data words in a wireless communication system
GB2463211A (en) Transmitting spread signal in communication system
AU2003277334A1 (en) System and method for tracking the location of multiple mobile radio transceiver units
TW200620871A (en) Method and system for selecting transmit antennas to reduce antenna correlation
NO993480L (no) Fremgangsmåte for dataoverföring, samt radiosystem
IL183434A0 (en) Method and apparatus for multiple access over a communication channel
EP2086147A3 (en) Simple block space time transmit diversity using multiple spreading codes
WO2008136750A3 (en) Method for detecting transmission mode in a system using multiple antennas
GB2441475A (en) Techniques for reconfigurable decoder for a wireless system
TW200713868A (en) Data detection for codes with non-uniform spreading factors
EP1475917A4 (en) COMMUNICATION SYSTEM, RECEIVERS, TRANSMITTERS AND COMMUNICATION PROCEDURES
WO2001050615A3 (en) Spreading factor determination
EP1550250A4 (en) METHOD AND SYSTEM FOR EVALUATING AND REDUCING INTERFERENCE IN A WIRELESS COMMUNICATION SYSTEM
TW200723790A (en) Method for encoding space-time codes in a wireless communication system having multiple antennas
EP1357677A3 (en) Interference cancellation in a receiver for CDMA radio systems
TW200723791A (en) MIMO-CDMA apparatus and the coding/decoding method thereof
WO2007103904A3 (en) A terminal for use in a wireless communication system and a method of operation thereof
TW200507665A (en) Code channel management in a wireless communications system
NO20044612L (no) Mottakerstasjon for CDMA tradlost system og fremgangsmate for denne

Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees