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BR9811276A - Receptor e processo para recompor um quadro de dados - Google Patents

Receptor e processo para recompor um quadro de dados

Info

Publication number
BR9811276A
BR9811276A BR9811276-7A BR9811276A BR9811276A BR 9811276 A BR9811276 A BR 9811276A BR 9811276 A BR9811276 A BR 9811276A BR 9811276 A BR9811276 A BR 9811276A
Authority
BR
Brazil
Prior art keywords
receiver
restoration
data
buffer
carried out
Prior art date
Application number
BR9811276-7A
Other languages
English (en)
Other versions
BRPI9811276B1 (pt
Inventor
Fredrick Ovesj
Erick Dahlman
Original Assignee
Ericsson Telefon Ab L M
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 Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Publication of BR9811276A publication Critical patent/BR9811276A/pt
Publication of BRPI9811276B1 publication Critical patent/BRPI9811276B1/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
    • 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
    • H04B1/06—Receivers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/0007—Code type
    • H04J13/004—Orthogonal
    • H04J13/0048—Walsh
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/16—Code allocation
    • H04J13/18—Allocation of orthogonal codes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0025—Transmission of mode-switching indication
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Communication Control (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)

Abstract

"RECEPTOR E PROCESSO PARA RECOMPOR UM QUADRO DE DADOS". Transmissões de dados de taxa variável são acomodadas tendo BRI transmitidas no mesmo quadro que os dados propriamente ditos. Quando difusão de código de Walsh é empregada, o processo de restauração pode ser dividido em duas operações de restauração separadas, com baferização entre as duas operações. A baferização é efetuada dos símbolos intermediários entre os estágios de restauração e pode ser efetuada à máxima taxa de dados de usuário em vez de à taxa de chip muito mais alta. Desta maneira a dimensão da báfer no receptor pode ser significativamente reduzida.
BRPI9811276A 1997-07-11 1998-07-03 receptor e processo para desespalhar um quadro de dados BRPI9811276B1 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/890,794 US6222875B1 (en) 1997-07-11 1997-07-11 Low-delay rate detection for variable rate communication systems
PCT/SE1998/001318 WO1999003225A1 (en) 1997-07-11 1998-07-03 Rate detection for variable rate cdma communication system

Publications (2)

Publication Number Publication Date
BR9811276A true BR9811276A (pt) 2000-08-29
BRPI9811276B1 BRPI9811276B1 (pt) 2016-06-21

Family

ID=25397151

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI9811276A BRPI9811276B1 (pt) 1997-07-11 1998-07-03 receptor e processo para desespalhar um quadro de dados

Country Status (13)

Country Link
US (1) US6222875B1 (pt)
EP (1) EP0995285B1 (pt)
JP (1) JP4160249B2 (pt)
KR (1) KR100538504B1 (pt)
CN (1) CN1115018C (pt)
AU (1) AU746160B2 (pt)
BR (1) BRPI9811276B1 (pt)
CA (1) CA2295812C (pt)
DE (1) DE69835882T2 (pt)
MY (1) MY121725A (pt)
RU (1) RU2214056C2 (pt)
TW (1) TW387178B (pt)
WO (1) WO1999003225A1 (pt)

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US7068683B1 (en) * 2000-10-25 2006-06-27 Qualcomm, Incorporated Method and apparatus for high rate packet data and low delay data transmissions
US6985510B2 (en) * 2000-12-22 2006-01-10 Qualcomm, Incorporated Method and system for data and voice transmission over shared and dedicated channels
US7120134B2 (en) 2001-02-15 2006-10-10 Qualcomm, Incorporated Reverse link channel architecture for a wireless communication system
US6552996B2 (en) 2001-09-18 2003-04-22 Interdigital Communications Corporation OVSF code system and methods
US7359430B2 (en) * 2002-02-19 2008-04-15 Texas Instruments Incorporated CDMA multicode channel processing
TWI382705B (zh) * 2002-07-18 2013-01-11 Interdigital Tech Corp 直角可變擴展因素碼分派
US7796574B2 (en) * 2002-09-10 2010-09-14 Texas Instruments Incorporated Multi-carrier reception for ultra-wideband (UWB) systems
US6996763B2 (en) * 2003-01-10 2006-02-07 Qualcomm Incorporated Operation of a forward link acknowledgement channel for the reverse link data
US7660282B2 (en) * 2003-02-18 2010-02-09 Qualcomm Incorporated Congestion control in a wireless data network
US8391249B2 (en) * 2003-02-18 2013-03-05 Qualcomm Incorporated Code division multiplexing commands on a code division multiplexed channel
US8081598B2 (en) * 2003-02-18 2011-12-20 Qualcomm Incorporated Outer-loop power control for wireless communication systems
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US7257151B2 (en) * 2004-05-05 2007-08-14 Texas Instruments Incorporated (Updated) preamble for FDMA
US20060209970A1 (en) * 2005-01-11 2006-09-21 Emmanuel Kanterakis Adaptive transmission rate communication system
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CN1909413B (zh) * 2005-08-02 2011-04-06 上海原动力通信科技有限公司 时隙码分多址蜂窝系统中传输可变速率数据的方法
US7894327B2 (en) * 2005-08-23 2011-02-22 Agere Systems Inc. Buffer-based generation of OVSF code sequences
JP5312040B2 (ja) * 2005-12-14 2013-10-09 テレフオンアクチーボラゲット エル エム エリクソン（パブル） スペクトル拡散受信機において使用されるオンデマンド逆拡散処理
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Also Published As

Publication number Publication date
EP0995285B1 (en) 2006-09-13
EP0995285A1 (en) 2000-04-26
DE69835882T2 (de) 2007-04-05
JP2001510298A (ja) 2001-07-31
CN1115018C (zh) 2003-07-16
BRPI9811276B1 (pt) 2016-06-21
KR100538504B1 (ko) 2005-12-23
TW387178B (en) 2000-04-11
DE69835882D1 (de) 2006-10-26
US6222875B1 (en) 2001-04-24
AU8364198A (en) 1999-02-08
CA2295812C (en) 2007-11-27
MY121725A (en) 2006-02-28
CN1269934A (zh) 2000-10-11
AU746160B2 (en) 2002-04-18
WO1999003225A1 (en) 1999-01-21
RU2214056C2 (ru) 2003-10-10
KR20010021651A (ko) 2001-03-15
JP4160249B2 (ja) 2008-10-01
CA2295812A1 (en) 1999-01-21

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Legal Events

Date Code Title Description
B07A Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]
B15K Others concerning applications: alteration of classification

Free format text: ALTERADA A CLASSIFICACAO H04J 13/04, H04B 1/707 PARA INT. CL. 2012.01 H04J 13/12, H04B 1/707.

Ipc: H04J 13/12 (2011.01), H04B 1/707 (2011.01)

B07A Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

Free format text: PRAZO DE VALIDADE: 10 (DEZ) ANOS CONTADOS A PARTIR DE 21/06/2016, OBSERVADAS AS CONDICOES LEGAIS.