BR0000493A - Receptor de espectro d difusão, tendo dispositivos de compressão compartilhados com combinados de pontas e seu uso - Google Patents

Receptor de espectro d difusão, tendo dispositivos de compressão compartilhados com combinados de pontas e seu uso

Info

Publication number
BR0000493A
BR0000493A BR0000493-6A BR0000493A BR0000493A BR 0000493 A BR0000493 A BR 0000493A BR 0000493 A BR0000493 A BR 0000493A BR 0000493 A BR0000493 A BR 0000493A
Authority
BR
Brazil
Prior art keywords
compression devices
tip
diffusion spectrum
diffusion
combiner
Prior art date
Application number
BR0000493-6A
Other languages
English (en)
Inventor
Yoshihiro Unno
Original Assignee
Nec 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 Nec Corp filed Critical Nec Corp
Publication of BR0000493A publication Critical patent/BR0000493A/pt

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
    • H04B1/7097—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
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0602—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using antenna switching
    • 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)
  • Stereo-Broadcasting Methods (AREA)
  • Noise Elimination (AREA)

Abstract

"RECEPTOR DE ESPECTRO DE DIFUSãO, TENDO DISPOSITIVOS DE COMPRESSãO COMPARTILHADOS COM COMBINADORES DE PONTAS E SEU USO". Um receptor de espectro de difusão inclui múltiplos dispositivos de compressão e múltiplos combinadores de pontas associados respectivamente a sinais de espectro de difusão. Conjunto de circuitos de alocação detecta um ou mais componentes de múltiplas trajetórias de sinais de espectro de difusão recebidos respectivamente endereçados a múltiplos usuários, e configura os dispositivos de compressão em um certo número de grupos de dispositivos de compressão de modo que os grupos correspondam aos sinais de espectro de difusão e cada grupo tenha um ou mais dispositivos de compressão correspondentes a um ou mais componentes de múltiplas trajetórias detectados do sinal de espectro de difusão recebido, e para alocar os dispositivos de compressão de cada grupo ao correspondente combinador de pontas. Todos dispositivos de compressão são providos em um número menor que o número de combinadores de pontas vezes o número máximo de componentes de múltiplas trajetórias de um sinal de espectro de difusão e maior que o número dos combinadores de pontas.
BR0000493-6A 1999-02-08 2000-02-08 Receptor de espectro d difusão, tendo dispositivos de compressão compartilhados com combinados de pontas e seu uso BR0000493A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3044899A JP2000232430A (ja) 1999-02-08 1999-02-08 Ｒａｋｅ（熊手）受信機

Publications (1)

Publication Number Publication Date
BR0000493A true BR0000493A (pt) 2000-10-24

Family

ID=12304208

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0000493-6A BR0000493A (pt) 1999-02-08 2000-02-08 Receptor de espectro d difusão, tendo dispositivos de compressão compartilhados com combinados de pontas e seu uso

Country Status (5)

Country Link
EP (1) EP1028540A3 (pt)
JP (1) JP2000232430A (pt)
KR (1) KR100364035B1 (pt)
CN (1) CN1126306C (pt)
BR (1) BR0000493A (pt)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6104709A (en) * 1998-07-17 2000-08-15 Motorola, Inc. Channel assignment within a broad-band communication system
EP1158688A1 (en) * 2000-05-25 2001-11-28 Lucent Technologies Inc. Dynamic finger allocation for rake receiver
DE10116170A1 (de) * 2001-03-31 2002-10-10 Alcatel Sa Verfahren zum Betreiben eines funkbasierten Kommunikationssystems
JP3468224B2 (ja) * 2001-04-02 2003-11-17 三菱電機株式会社 マルチユーザ復調装置、受信装置、並びにマルチチャネル復調方法。
GB2397986B (en) * 2001-11-02 2004-12-15 Toshiba Res Europ Ltd Receiver processing system
KR100427577B1 (ko) * 2001-12-27 2004-04-28 한국전자통신연구원 하드웨어 복잡도를 줄인 레이크 수신기
US6785322B1 (en) 2002-04-12 2004-08-31 Interdigital Technology Corporation Node-B/base station rake finger pooling
TWI259011B (en) 2002-04-12 2006-07-21 Interdigital Tech Corp Access burst detector correlator pool
DE10250860A1 (de) * 2002-10-31 2004-05-19 Infineon Technologies Ag Vorrichtung und Verfahren zur Rake-Demodulation von Signalen mit freier Zuordnung zwischen Spreizcode-Generatoren und Rake-Fingern
JP4096724B2 (ja) * 2002-12-12 2008-06-04 日本電気株式会社 マルチビームアンテナ受信装置およびマルチビーム受信方法
DE10306301B3 (de) * 2003-02-14 2004-10-07 Infineon Technologies Ag Vorrichtung zur Erzeugung von Spreizcodes in einem Mobilfunksystem und deren Verwendung in einem CDMA-Übertragungssystem
WO2005076492A1 (ja) * 2004-02-03 2005-08-18 Matsushita Electric Industrial Co., Ltd. Ｒａｋｅ受信装置およびｒａｋｅ受信方法
CN100361413C (zh) * 2004-06-03 2008-01-09 电子科技大学 一种直接序列扩频信号的解扩方法
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
US7480356B2 (en) 2004-12-08 2009-01-20 Telefonaktiebolaget L M Ericsson (Publ) Method of and system for path selection in rich multipath conditions
US7372895B2 (en) 2004-12-08 2008-05-13 Telefonaktiebolaget Lm Ericsson (Publ) Method of and system for delay estimation with minimized finger allocation
CN101351979B (zh) * 2006-06-22 2012-06-13 中兴通讯股份有限公司 Cdma下行接收信号的解调方法及其多径分配的优化方法
EP2107706B1 (en) * 2008-04-02 2013-09-25 TELEFONAKTIEBOLAGET LM ERICSSON (publ) A receiver and a method for mobile communication

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI932605A7 (fi) * 1993-06-07 1994-12-08 Nokia Telecommunications Oy Tukiasemavastaanotinlaitteisto
JP2820918B2 (ja) * 1996-03-08 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 スペクトル拡散通信装置

Also Published As

Publication number Publication date
EP1028540A3 (en) 2001-02-21
CN1126306C (zh) 2003-10-29
JP2000232430A (ja) 2000-08-22
KR20000071333A (ko) 2000-11-25
CN1263390A (zh) 2000-08-16
EP1028540A2 (en) 2000-08-16
KR100364035B1 (ko) 2002-12-11

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Legal Events

Date Code Title Description
B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]

Free format text: REFERENTE A 5O, 6O E 7O ANUIDADES.

B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: REFERENTE AO DESPACHO 8.6 PUBLICADO NA RPI 1913 DE 04/09/2007.

B15K Others concerning applications: alteration of classification

Ipc: H04B 1/7115 (2011.01), H04B 7/06 (2006.01)