ES2128523T3 - Procedimiento de seleccion de trayectorias de propagacion multiples retenidas para la recepcion de mensajes en un sistema de radio comunicacion amrc. - Google Patents

Procedimiento de seleccion de trayectorias de propagacion multiples retenidas para la recepcion de mensajes en un sistema de radio comunicacion amrc.

Info

Publication number
ES2128523T3
ES2128523T3 ES94401821T ES94401821T ES2128523T3 ES 2128523 T3 ES2128523 T3 ES 2128523T3 ES 94401821 T ES94401821 T ES 94401821T ES 94401821 T ES94401821 T ES 94401821T ES 2128523 T3 ES2128523 T3 ES 2128523T3
Authority
ES
Spain
Prior art keywords
delay
reception
amrc
delays
messages
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
ES94401821T
Other languages
English (en)
Inventor
Philippe Lucas
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.)
Nortel Networks France SAS
Original Assignee
Matra Nortel Communications SAS
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 Matra Nortel Communications SAS filed Critical Matra Nortel Communications SAS
Application granted granted Critical
Publication of ES2128523T3 publication Critical patent/ES2128523T3/es
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
    • 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
    • H04B1/7097—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
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
    • H04B7/2628—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using code-division multiple access [CDMA] or spread spectrum multiple access [SSMA]

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

CADA TRAYECTO ES IDENTIFICADO POR UN RETARDO (D1, D2) QUE SE APLICA A AL MENOS UNA SECUENCIA DE EXPOSICION PARA DETERMINAR UNA CORRELACION ENTRE LA SEÑAL RECIBIDA Y DICHA SECUENCIA DE EXPOSICION. SE EVALUA, PARA CADA RETARDO SELECCIONADO (D1, D2), UNA ENERGIA DE RECEPCION (E1, E2) CONTENIDA EN LA SEÑAL AMRC CONSTITUIDA POR LA CORRELACION ENTE LA SEÑAL RECIBIDA (R) Y UNA SECUENCIA AL AZAR DE LOS RETARDOS A PROBAR CON UNA PROBABILIDAD DE ELECCION QUE PRESENTA UN MAXIMO PARA UN RETARDO SENSIBLEMENTE IGUAL AL MAS PEQUEÑO DE LOS RETARDOS SELECCIONADOS (D1). LOS RETARDOS (D) ASI ELEGIDOS SON PROBADOS EVALUANDO SU ENERGIA DE RECEPCION ASOCIADA (E).CUANDO LA ENERGIA DE RECEPCION PARA UN RETARDO PROBADO ES SUPERIOR A AL MENOS UNA DE LAS ENERGIAS DE RECEPCION ASOCIADAS A LOS RETARDOS ANTERIORMENTE SELECCIONADOS SE SUSTITUYE EL RETARDO PROBADO POR EL RETARDO SELECCIONADO ANTERIORMENTE PARA EL CUAL LA ENERGIA DE RECEPCION ES LA MAS PEQUEÑA.
ES94401821T 1993-08-13 1994-08-05 Procedimiento de seleccion de trayectorias de propagacion multiples retenidas para la recepcion de mensajes en un sistema de radio comunicacion amrc. Expired - Lifetime ES2128523T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9309958A FR2709028B1 (fr) 1993-08-13 1993-08-13 Procédé de sélection des trajets de propagation retenus pour recevoir des messages transmis par radiocommunication AMRC.

Publications (1)

Publication Number Publication Date
ES2128523T3 true ES2128523T3 (es) 1999-05-16

Family

ID=9450193

Family Applications (1)

Application Number Title Priority Date Filing Date
ES94401821T Expired - Lifetime ES2128523T3 (es) 1993-08-13 1994-08-05 Procedimiento de seleccion de trayectorias de propagacion multiples retenidas para la recepcion de mensajes en un sistema de radio comunicacion amrc.

Country Status (6)

Country Link
US (1) US5448600A (es)
EP (1) EP0639010B1 (es)
DE (1) DE69415611T2 (es)
ES (1) ES2128523T3 (es)
FI (1) FI109249B (es)
FR (1) FR2709028B1 (es)

Families Citing this family (61)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07509831A (ja) * 1993-06-02 1995-10-26 ロウク　マナー　リサーチ　リミテッド 固定および移動無線ユニット間にディジタル無線リンクを提供する設備において使用される装置
FI110043B (fi) * 1993-09-20 2002-11-15 Nokia Corp Menetelmä kanavanvaihdon suorittamiseksi CDMA-solukkoradiojärjestelmässä sekä liikkuva asema
US5787344A (en) 1994-06-28 1998-07-28 Scheinert; Stefan Arrangements of base transceiver stations of an area-covering network
US5574747A (en) * 1995-01-04 1996-11-12 Interdigital Technology Corporation Spread spectrum adaptive power control system and method
US6831905B1 (en) 1995-06-30 2004-12-14 Interdigital Technology Corporation Spread spectrum system assigning information signals to message-code signals
US6788662B2 (en) 1995-06-30 2004-09-07 Interdigital Technology Corporation Method for adaptive reverse power control for spread-spectrum communications
US6885652B1 (en) 1995-06-30 2005-04-26 Interdigital Technology Corporation Code division multiple access (CDMA) 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
US6816473B2 (en) 1995-06-30 2004-11-09 Interdigital Technology Corporation Method for adaptive forward power control for spread-spectrum communications
ZA965340B (en) 1995-06-30 1997-01-27 Interdigital Tech Corp Code division multiple access (cdma) communication system
FR2737362B1 (fr) * 1995-07-25 1997-10-10 Matra Communication Procede de selection des retards de propagation retenus pour recevoir des messages transmis par radiocommunication a etalement de spectre
US5754533A (en) * 1995-08-23 1998-05-19 Qualcomm Incorporated Method and system for non-orthogonal noise energy based gain control
FI100494B (fi) * 1995-11-20 1997-12-15 Nokia Telecommunications Oy Menetelmä vastaanottimen ohjaamiseksi ja vastaanotin
JP2820919B2 (ja) * 1996-03-25 1998-11-05 株式会社ワイ・アール・ピー移動通信基盤技術研究所 Ｃｄｍａ移動体通信システムおよび送受信機
JP3310160B2 (ja) * 1996-03-29 2002-07-29 松下電器産業株式会社 スペクトラム拡散方式受信装置
FI101659B (fi) * 1996-07-12 1998-07-31 Nokia Mobile Phones Ltd Viiveen estimointimenetelmä ja vastaanotin
US5953382A (en) * 1996-07-17 1999-09-14 Asano; Nobuo CDMA system mobile communication receiver
US6125109A (en) * 1998-02-24 2000-09-26 Repeater Technologies Delay combiner system for CDMA repeaters and low noise amplifiers
ID24882A (id) * 1998-06-13 2000-08-31 Samsung Electronics Co Ltd Piranti dan metode pengukuran daya desah tidak-ortogonal untuk sistim komunikasi coma
US6141374A (en) * 1998-10-14 2000-10-31 Lucent Technologies Inc. Method and apparatus for generating multiple matched-filter PN vectors in a CDMA demodulator
US6192249B1 (en) 1998-12-03 2001-02-20 Qualcomm Inc. Method and apparatus for reverse link loading estimation
US6442398B1 (en) 1998-12-03 2002-08-27 Qualcomm Incorporated Method and apparatus for reverse link loading estimation
US6397070B1 (en) 1999-07-21 2002-05-28 Qualcomm Incorporated Method and apparatus for estimating reverse link loading in a wireless communication system
JP3566895B2 (ja) * 2000-02-15 2004-09-15 株式会社エヌ・ティ・ティ・ドコモ 先頭波位置検出装置、受信装置、先頭位置検出装置、先頭波位置検出方法および先頭位置検出方法
US6980803B2 (en) * 2000-12-04 2005-12-27 Telefonaktiebolaget Lm Ericsson (Publ) Using statistically ascertained position for starting synchronization searcher during diversity handover
US6907245B2 (en) 2000-12-04 2005-06-14 Telefonaktiebolaget Lm Ericsson (Publ) Dynamic offset threshold for diversity handover in telecommunications system
US6954644B2 (en) 2000-12-04 2005-10-11 Telefonaktiebolaget Lm Ericsson (Publ) Using geographical coordinates to determine mobile station time position for synchronization during diversity handover
WO2003023444A1 (en) 2001-09-12 2003-03-20 Data Fusion Corporation Gps near-far resistant receiver
US8085889B1 (en) 2005-04-11 2011-12-27 Rambus Inc. Methods for managing alignment and latency in interference cancellation
US7158559B2 (en) * 2002-01-15 2007-01-02 Tensor Comm, Inc. Serial cancellation receiver design for a coded signal processing engine
JP3831229B2 (ja) * 2001-10-31 2006-10-11 富士通株式会社 伝搬路特性推定装置
US7787518B2 (en) * 2002-09-23 2010-08-31 Rambus Inc. Method and apparatus for selectively applying interference cancellation in spread spectrum systems
US7260506B2 (en) * 2001-11-19 2007-08-21 Tensorcomm, Inc. Orthogonalization and directional filtering
US20050180364A1 (en) * 2002-09-20 2005-08-18 Vijay Nagarajan Construction of projection operators for interference cancellation
US7808937B2 (en) 2005-04-07 2010-10-05 Rambus, Inc. Variable interference cancellation technology for CDMA systems
US8761321B2 (en) 2005-04-07 2014-06-24 Iii Holdings 1, Llc Optimal feedback weighting for soft-decision cancellers
US7787572B2 (en) 2005-04-07 2010-08-31 Rambus Inc. Advanced signal processors for interference cancellation in baseband receivers
US7577186B2 (en) 2002-09-20 2009-08-18 Tensorcomm, Inc Interference matrix construction
US7463609B2 (en) 2005-07-29 2008-12-09 Tensorcomm, Inc Interference cancellation within wireless transceivers
US7876810B2 (en) 2005-04-07 2011-01-25 Rambus Inc. Soft weighted interference cancellation for CDMA systems
US8179946B2 (en) 2003-09-23 2012-05-15 Rambus Inc. Systems and methods for control of advanced receivers
US20050123080A1 (en) * 2002-11-15 2005-06-09 Narayan Anand P. Systems and methods for serial cancellation
US8005128B1 (en) 2003-09-23 2011-08-23 Rambus Inc. Methods for estimation and interference cancellation for signal processing
WO2004036811A2 (en) * 2002-10-15 2004-04-29 Tensorcomm Inc. Method and apparatus for interference suppression with efficient matrix inversion in a ds-cdma system
EP1579591B1 (en) * 2002-10-15 2012-06-06 Rambus Inc. Method and apparatus for channel amplitude estimation and interference vector construction
WO2004073159A2 (en) 2002-11-15 2004-08-26 Tensorcomm, Incorporated Systems and methods for parallel signal cancellation
WO2004049663A1 (en) * 2002-11-27 2004-06-10 Research In Motion Limited Method and system for applying viterbi type psk demodulation for optimum correlation of gps signals
US7352704B1 (en) * 2003-08-29 2008-04-01 National Semiconductor Corporation Method and apparatus for multi-path delay spread detection in wideband CDMA systems
US20050169354A1 (en) * 2004-01-23 2005-08-04 Olson Eric S. Systems and methods for searching interference canceled data
US7477710B2 (en) * 2004-01-23 2009-01-13 Tensorcomm, Inc Systems and methods for analog to digital conversion with a signal cancellation system of a receiver
US8452316B2 (en) 2004-06-18 2013-05-28 Qualcomm Incorporated Power control for a wireless communication system utilizing orthogonal multiplexing
US7197692B2 (en) 2004-06-18 2007-03-27 Qualcomm Incorporated Robust erasure detection and erasure-rate-based closed loop power control
GB2438347B8 (en) * 2005-02-25 2009-04-08 Data Fusion Corp Mitigating interference in a signal
US8848574B2 (en) 2005-03-15 2014-09-30 Qualcomm Incorporated Interference control in a wireless communication system
US8942639B2 (en) 2005-03-15 2015-01-27 Qualcomm Incorporated Interference control in a wireless communication system
US7826516B2 (en) 2005-11-15 2010-11-02 Rambus Inc. Iterative interference canceller for wireless multiple-access systems with multiple receive antennas
KR100648926B1 (ko) * 2005-07-11 2006-11-27 삼성전자주식회사 사용자 식별 정보 부가기능을 갖는 복합기 및 그 방법
US8929908B2 (en) 2005-10-27 2015-01-06 Qualcomm Incorporated Method and apparatus for estimating reverse link loading in a wireless communication system
US8670777B2 (en) 2006-09-08 2014-03-11 Qualcomm Incorporated Method and apparatus for fast other sector interference (OSI) adjustment
US8442572B2 (en) 2006-09-08 2013-05-14 Qualcomm Incorporated Method and apparatus for adjustments for delta-based power control in wireless communication systems

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2982853A (en) * 1956-07-02 1961-05-02 Research Corp Anti-multipath receiving system
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
US5237586A (en) * 1992-03-25 1993-08-17 Ericsson-Ge Mobile Communications Holding, Inc. Rake receiver with selective ray combining
US5233626A (en) * 1992-05-11 1993-08-03 Space Systems/Loral Inc. Repeater diversity spread spectrum communication system
US5343495A (en) * 1992-12-31 1994-08-30 Gte Government Systems Corporation Method of multipath dsss communications
US5349606A (en) * 1992-12-31 1994-09-20 Gte Government Systems Corporation Apparatus for multipath DSSS communications
US5315616A (en) * 1992-12-31 1994-05-24 Gte Government Systems Corporation Correlator for DSSS communications
US5315615A (en) * 1992-12-31 1994-05-24 Gte Government Systems Corporation DSSS communications correlation
US5347536A (en) * 1993-03-17 1994-09-13 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Multipath noise reduction for spread spectrum signals
US5305349A (en) * 1993-04-29 1994-04-19 Ericsson Ge Mobile Communications Inc. Quantized coherent rake receiver
US5335248A (en) * 1993-06-17 1994-08-02 Rockwell International Corporation Apparatus for correlating multi-frequency signals

Also Published As

Publication number Publication date
FI943605A (fi) 1995-02-14
EP0639010A1 (fr) 1995-02-15
FI109249B (fi) 2002-06-14
FR2709028B1 (fr) 1995-10-20
EP0639010B1 (fr) 1998-12-30
DE69415611D1 (de) 1999-02-11
DE69415611T2 (de) 1999-09-09
FR2709028A1 (fr) 1995-02-17
FI943605A0 (fi) 1994-08-03
US5448600A (en) 1995-09-05

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