BR0114236A - método e equipamento para a geração de seqüências pn em fases arbitrárias - Google Patents

método e equipamento para a geração de seqüências pn em fases arbitrárias

Info

Publication number
BR0114236A
BR0114236A BRPI0114236-4A BR0114236A BR0114236A BR 0114236 A BR0114236 A BR 0114236A BR 0114236 A BR0114236 A BR 0114236A BR 0114236 A BR0114236 A BR 0114236A
Authority
BR
Brazil
Prior art keywords
phase
increments
sequence
sequences
generation
Prior art date
Application number
BRPI0114236-4A
Other languages
English (en)
Inventor
Arthur J Neufeld
Erhen J D Van Melle
Eric Handojo
Original Assignee
Qualcomm 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 Qualcomm Inc filed Critical Qualcomm Inc
Publication of BR0114236A publication Critical patent/BR0114236A/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
    • H04B1/7073—Synchronisation aspects
    • H04B1/7075—Synchronisation aspects with code phase acquisition
    • H04B1/70754—Setting of search window, i.e. range of code offsets to be searched
    • 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
    • H04B1/7075—Synchronisation aspects with code phase acquisition
    • H04B1/70756—Jumping within the code, i.e. masking or slewing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/0007—Code type
    • H04J13/0022—PN, e.g. Kronecker
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/10—Code generation
    • 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
    • H04B2201/70701—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation featuring pilot assisted reception
    • 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
    • H04B2201/70702—Intercell-related aspects

Landscapes

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

Abstract

"MéTODO E EQUIPAMENTO PARA A GERAçãO DE SEQüêNCIAS PN EM FASES ARBITRáRIAS". Técnicas para a geração de uma seqüência de números pseudo-aleatórios (PN) em uma fase desejada utilizando 'mascaramento' para ajustar a fase da seqüência PN em incrementos grosseiros (por exemplo, incrementos de 64 chips PN) para responder por um ajuste de fase grande. O retorno pode então ser utilizado para ajustar a fase PN em incrementos finos (por exemplo, incrementos de 1/8 chips PN) para obter a fase desejada. Antes de cada varredura pelo piloto de uma estação base específica, uma máscara PN correspondendo a uma fase mais próxima do começo de uma nova janela de busca é aplicada a um gerador de PN para obter uma fase inicial para a seqüência PN. A partir da fase inicial obtida pela máscara aplicada, o gerador PN é então retornado para o começo da janela de busca. O mascaramento pode ser utilizado para obter um grande ajuste de fase em menos tempo, o que deve melhorar o desempenho da busca.
BRPI0114236-4A 2000-09-29 2001-09-27 método e equipamento para a geração de seqüências pn em fases arbitrárias BR0114236A (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US23677400P 2000-09-29 2000-09-29
US09/919,685 US6922435B2 (en) 2000-09-29 2001-07-31 Method and apparatus for generating PN sequences at arbitrary phases
PCT/US2001/030420 WO2002027961A2 (en) 2000-09-29 2001-09-27 Method and apparatus for generating pn sequences at arbitrary phases

Publications (1)

Publication Number Publication Date
BR0114236A true BR0114236A (pt) 2006-05-09

Family

ID=26930104

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0114236-4A BR0114236A (pt) 2000-09-29 2001-09-27 método e equipamento para a geração de seqüências pn em fases arbitrárias

Country Status (12)

Country Link
US (1) US6922435B2 (pt)
EP (1) EP1320939B1 (pt)
JP (1) JP2004510387A (pt)
KR (1) KR100881791B1 (pt)
CN (1) CN1476684A (pt)
AT (1) ATE409985T1 (pt)
AU (1) AU2001293168A1 (pt)
BR (1) BR0114236A (pt)
CA (1) CA2423471A1 (pt)
DE (1) DE60135998D1 (pt)
RU (1) RU2003112466A (pt)
WO (1) WO2002027961A2 (pt)

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* Cited by examiner, † Cited by third party
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US6771622B1 (en) * 2000-11-17 2004-08-03 Koninklijke Philips Electronics N.V. Pilot-signal searching with decimation reordering
US8504109B2 (en) * 2000-12-11 2013-08-06 Apple Inc. Antenna systems with common overhead for CDMA base stations
US7953446B2 (en) 2000-12-11 2011-05-31 Nortel Networks Limited Antenna systems with common overhead for CDMA base stations
US7756085B2 (en) * 2001-11-20 2010-07-13 Qualcomm Incorporated Steps one and three W-CDMA and multi-mode searching
KR100771598B1 (ko) * 2001-12-29 2007-10-31 엘지전자 주식회사 왈쉬 코드 생성 방법 및 왈쉬 코드 생성기
US20040062300A1 (en) * 2002-10-01 2004-04-01 Mcdonough John G. System and method for detecting direct sequence spread spectrum signals using batch processing of independent parameters
US20050026640A1 (en) * 2003-07-25 2005-02-03 Pan Victor Hrid Pseudorandom number offset assignment system and method
US7123944B2 (en) * 2003-12-19 2006-10-17 Samsung Electronics Co., Ltd. Apparatus and method for controlling auxiliary pilot channel in a CDMA2000 wireless network
CN1303839C (zh) * 2003-12-19 2007-03-07 北京天碁科技有限公司 一种降低小区初搜运算量并提高运算精度的方法及装置
CN100362753C (zh) * 2003-12-26 2008-01-16 华为技术有限公司 一种识别导频pn序列偏置值的方法
CN100375400C (zh) * 2004-07-13 2008-03-12 中兴通讯股份有限公司 一种在码分多址系统中实现有序分配导频的方法
US7440517B1 (en) * 2004-09-17 2008-10-21 Henrie Roland R Method and apparatus for switching between multiple waveforms
CN101138195B (zh) * 2005-02-14 2011-05-18 法国电信公司 用于生成伪随机数据序列的方法、系统及设备
KR100800800B1 (ko) * 2005-08-30 2008-02-04 삼성전자주식회사 선형궤환시프트레지스터를 이용한 부호 생성 방법 및 장치
US20090129448A1 (en) * 2006-02-15 2009-05-21 Joshua Lawrence Koslov Apparatus and Method For Generating Scrambling Codes
US8059614B2 (en) * 2007-08-31 2011-11-15 Samsung Electronics Co., Ltd. Pseudorandom noise selection method for mobile communication sites
US8848913B2 (en) 2007-10-04 2014-09-30 Qualcomm Incorporated Scrambling sequence generation in a communication system
US8509145B1 (en) 2007-12-20 2013-08-13 Sprint Spectrum L.P. Method and system for using multiple pseudonoise (PN) increments
US8787181B2 (en) * 2008-01-14 2014-07-22 Qualcomm Incorporated Resource allocation randomization
US8923249B2 (en) * 2008-03-26 2014-12-30 Qualcomm Incorporated Method and apparatus for scrambling sequence generation in a communication system
CN114553386B (zh) * 2022-04-24 2023-03-10 哲库科技(北京)有限公司 一种序列生成方法及装置、计算机可读存储介质

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3116264B2 (ja) * 1994-12-07 2000-12-11 松下電器産業株式会社 スペクトル拡散通信受信機
US5790589A (en) 1996-08-14 1998-08-04 Qualcomm Incorporated System and method for rapidly reacquiring a pilot channel
US6724738B1 (en) * 1997-02-27 2004-04-20 Motorola Inc. Method and apparatus for acquiring a pilot signal in a CDMA receiver
JP2001527728A (ja) 1998-03-05 2001-12-25 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ 疑似ランダムノイズ発生器用のマスク発生多項式
US6157820A (en) * 1998-06-12 2000-12-05 Ericsson Inc. Pilot strength measurement and multipath delay searcher for CDMA receiver
KR100509471B1 (ko) * 1998-07-24 2005-10-26 삼성전자주식회사 개선된 pn 코드 생성기
JP2947279B1 (ja) * 1998-07-31 1999-09-13 日本電気株式会社 スペクトラム拡散通信システム、及びスペクトラム拡散通信システムにおけるハンドオーバー方法
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
US6590881B1 (en) * 1998-12-04 2003-07-08 Qualcomm, Incorporated Method and apparatus for providing wireless communication system synchronization
US6560212B1 (en) * 1999-03-16 2003-05-06 Agere Systems Inc. Generating an offset de-bruijn sequence using masks for a CDMA communication system
US6594680B1 (en) * 1999-12-30 2003-07-15 Texas Instruments Incorporated Psuedo-random noise sequence generating system
US6639907B2 (en) * 2000-09-26 2003-10-28 Qualcomm, Incorporated Method and apparatus for processing paging indicator bits transmitted on a quick paging channel
US6735606B2 (en) * 2001-05-15 2004-05-11 Qualcomm Incorporated Multi-sequence fast slewing pseudorandom noise generator

Also Published As

Publication number Publication date
CA2423471A1 (en) 2002-04-04
RU2003112466A (ru) 2004-08-27
US20020067762A1 (en) 2002-06-06
EP1320939A2 (en) 2003-06-25
AU2001293168A1 (en) 2002-04-08
US6922435B2 (en) 2005-07-26
ATE409985T1 (de) 2008-10-15
KR100881791B1 (ko) 2009-02-03
CN1476684A (zh) 2004-02-18
EP1320939B1 (en) 2008-10-01
KR20030034233A (ko) 2003-05-01
WO2002027961A3 (en) 2002-06-27
JP2004510387A (ja) 2004-04-02
DE60135998D1 (de) 2008-11-13
WO2002027961A2 (en) 2002-04-04

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Legal Events

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

Free format text: REFERENTE A 5A, 6A E 7A 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: EM VIRTUDE DO ARQUIVAMENTO PUBLICADO NA RPI 1964 DE 26/08/2008 E CONSIDERANDO A AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS.