SE524624C2 - Sätt och system för demodulering av flera chip i en CDMA signal - Google Patents

Sätt och system för demodulering av flera chip i en CDMA signal

Info

Publication number
SE524624C2
SE524624C2 SE9802950A SE9802950A SE524624C2 SE 524624 C2 SE524624 C2 SE 524624C2 SE 9802950 A SE9802950 A SE 9802950A SE 9802950 A SE9802950 A SE 9802950A SE 524624 C2 SE524624 C2 SE 524624C2
Authority
SE
Sweden
Prior art keywords
user
samples
demodulating
multiple access
division multiple
Prior art date
Application number
SE9802950A
Other languages
English (en)
Swedish (sv)
Other versions
SE9802950D0 (sv
SE9802950L (sv
Inventor
Gregory Peter Spock
Original Assignee
Motorola 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 Motorola Inc filed Critical Motorola Inc
Publication of SE9802950D0 publication Critical patent/SE9802950D0/xx
Publication of SE9802950L publication Critical patent/SE9802950L/xx
Publication of SE524624C2 publication Critical patent/SE524624C2/sv

Links

Classifications

    • 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
    • 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
SE9802950A 1997-01-02 1998-09-02 Sätt och system för demodulering av flera chip i en CDMA signal SE524624C2 (sv)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/778,430 US5903550A (en) 1997-01-02 1997-01-02 Method and system for parallel demodulation of multiple chips of a CDMA signal
PCT/US1997/022371 WO1998032246A1 (en) 1997-01-02 1997-12-05 Method and system for parallel demodulation of multiple chips of a cdma signal

Publications (3)

Publication Number Publication Date
SE9802950D0 SE9802950D0 (sv) 1998-09-02
SE9802950L SE9802950L (sv) 1998-11-02
SE524624C2 true SE524624C2 (sv) 2004-09-07

Family

ID=25113327

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9802950A SE524624C2 (sv) 1997-01-02 1998-09-02 Sätt och system för demodulering av flera chip i en CDMA signal

Country Status (15)

Country Link
US (1) US5903550A (ru)
KR (1) KR100306455B1 (ru)
CN (1) CN1115801C (ru)
AU (1) AU715259B2 (ru)
BR (1) BR9708770A (ru)
CA (1) CA2248209A1 (ru)
DE (1) DE19757375A1 (ru)
FI (1) FI981868A0 (ru)
FR (1) FR2758026B1 (ru)
GB (1) GB2325384B (ru)
IL (1) IL125837A (ru)
IT (1) IT1297784B1 (ru)
RU (1) RU2174740C2 (ru)
SE (1) SE524624C2 (ru)
WO (1) WO1998032246A1 (ru)

Families Citing this family (34)

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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
US6012160A (en) * 1997-10-03 2000-01-04 Ericsson Inc. Method for protecting important data bits using less important data bits
JP3793632B2 (ja) * 1997-12-18 2006-07-05 松下電器産業株式会社 セルサーチ方法及び移動局装置
US6134440A (en) * 1998-01-26 2000-10-17 Qualcomm Inc. Method and apparatus for performing mobile station assisted hard handoff using off line searching
US6266361B1 (en) * 1998-07-21 2001-07-24 Chung-Shan Institute Of Science And Technology Method and architecture for correcting carrier frequency offset and spreading code timing offset in a direct sequence spread spectrum communication system
US6741581B1 (en) 1998-09-22 2004-05-25 Hughes Electronics Corporation System and method for transmitting data in frame format using an R-Rake retransmission technique with blind identification of data frames
JP3680592B2 (ja) * 1998-10-30 2005-08-10 株式会社日立製作所 通信装置
US6201843B1 (en) * 1999-02-25 2001-03-13 L-3 Communications, Inc. Rapid acquisition dispersive channel receiver integrated circuit
DE19929727C2 (de) * 1999-06-29 2003-01-30 Siemens Ag Empfangsteil zum Betrieb eines Empfangsteils
US20020056135A1 (en) * 2000-03-06 2002-05-09 Alok Sharma Transceiver channel bank with reduced connector density
US7099340B2 (en) * 2000-03-06 2006-08-29 Juniper Networks, Inc. Enhanced CMTS for reliability, availability, and serviceability
US20010046268A1 (en) * 2000-03-06 2001-11-29 Alok Sharma Transceiver channel bank with reduced connector density
US7149223B2 (en) * 2000-03-06 2006-12-12 Juniper Networks, Inc. Enhanced fiber nodes with CMTS capability
US7130292B2 (en) * 2000-06-02 2006-10-31 Essex Corporation Optical processor enhanced receiver architecture (opera)
US6959033B1 (en) 2000-08-25 2005-10-25 Texas Instruments Incorporated System and method for assigning combiner channels in spread spectrum communications
US6771691B1 (en) 2000-09-15 2004-08-03 Texas Instruments Incorporated System and method for extracting soft symbols in direct sequence spread spectrum communications
US7031374B1 (en) * 2000-10-06 2006-04-18 Texas Instruments Incorporated System and method for selecting sample streams in direct sequence spread spectrum communications
US6985516B1 (en) 2000-11-27 2006-01-10 Qualcomm Incorporated Method and apparatus for processing a received signal in a communications system
KR100366292B1 (ko) * 2000-11-29 2002-12-31 한국전자통신연구원 핑거의 ｆｉｆｏ 수를 줄이는 심볼 컴바이닝 방법, 이를이용한 레이크 수신기 및 이러한 레이크 수신기를구동시키기 위한 방법
US7110440B2 (en) * 2001-03-14 2006-09-19 Mercury Computer Systems, Inc. Wireless communications systems and methods for multiple processor based multiple user detection
US6987799B2 (en) * 2001-05-03 2006-01-17 Texas Instruments Incorporated System and method for demodulating associated information channels in direct sequence spread spectrum communications
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
KR100444732B1 (ko) * 2001-12-24 2004-08-16 한국전자통신연구원 부호 분할 다중 접속 시스템용 기지국 복조기에서의 칩연산 장치 및 그 방법과, 그 장치를 사용한 기지국 복조기
US6771693B2 (en) * 2001-12-27 2004-08-03 Interdigital Technology Corporation Enhanced rake structure
US7177265B1 (en) * 2002-01-15 2007-02-13 Digi International Inc. Iterative method, and apparatus for acquiring time and frequency synchronization in a DSSS receiver
US7106784B2 (en) * 2002-01-25 2006-09-12 Sasken Communication Technologies Limited Universal rake receiver
US7801085B1 (en) * 2002-06-03 2010-09-21 Ericsson Ab System and method of processing CDMA signals
US8000377B2 (en) * 2004-05-24 2011-08-16 General Dynamics C4 Systems, Inc. System and method for variable rate multiple access short message communications
US8462818B2 (en) * 2006-08-02 2013-06-11 Freescale Semiconductor, Inc. Method for processing CDMA signals and a device having CDMA signal capabilities
US8369356B2 (en) * 2007-03-21 2013-02-05 Qualcomm Incorporated Dynamic management of receiver resources
US8345803B2 (en) * 2008-10-02 2013-01-01 Qualcomm Incorporated Optimized finger assignment for improved multicarrier throughput
US8964692B2 (en) * 2008-11-10 2015-02-24 Qualcomm Incorporated Spectrum sensing of bluetooth using a sequence of energy detection measurements
WO2012103844A2 (zh) * 2012-03-30 2012-08-09 华为技术有限公司 一种业务数据的发送、接收方法、装置及系统
KR102637730B1 (ko) 2018-12-24 2024-02-19 삼성전자주식회사 다중 수신 다중 sim을 위한 장치 및 방법

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5151919A (en) * 1990-12-17 1992-09-29 Ericsson-Ge Mobile Communications Holding Inc. Cdma subtractive demodulation
US5237586A (en) * 1992-03-25 1993-08-17 Ericsson-Ge Mobile Communications Holding, Inc. Rake receiver with selective ray combining
US5305349A (en) * 1993-04-29 1994-04-19 Ericsson Ge Mobile Communications Inc. Quantized coherent rake receiver
US5544156A (en) * 1994-04-29 1996-08-06 Telefonaktiebolaget Lm Ericsson Direct sequence CDMA coherent uplink detector

Also Published As

Publication number Publication date
SE9802950D0 (sv) 1998-09-02
FR2758026A1 (fr) 1998-07-03
CA2248209A1 (en) 1998-07-23
FR2758026B1 (fr) 2005-10-21
KR20000064545A (ko) 2000-11-06
AU1729399A (en) 1999-02-10
IL125837A (en) 2002-02-10
IT1297784B1 (it) 1999-12-20
IL125837A0 (en) 1999-04-11
CN1212799A (zh) 1999-03-31
FI981868A (fi) 1998-09-01
ITRM970806A1 (it) 1999-06-23
AU715259B2 (en) 2000-01-20
SE9802950L (sv) 1998-11-02
GB2325384A (en) 1998-11-18
FI981868A0 (fi) 1998-09-01
RU2174740C2 (ru) 2001-10-10
KR100306455B1 (ko) 2001-11-02
US5903550A (en) 1999-05-11
GB2325384B (en) 2002-01-09
GB9818971D0 (en) 1998-10-21
WO1998032246A1 (en) 1998-07-23
BR9708770A (pt) 1999-08-03
CN1115801C (zh) 2003-07-23
DE19757375A1 (de) 1998-07-23

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Legal Events

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