[go: up one dir, main page]

BR9814859A - Captação de sinal e sincronização rápidas para transmissões de acesso - Google Patents

Captação de sinal e sincronização rápidas para transmissões de acesso

Info

Publication number
BR9814859A
BR9814859A BR9814859-1A BR9814859A BR9814859A BR 9814859 A BR9814859 A BR 9814859A BR 9814859 A BR9814859 A BR 9814859A BR 9814859 A BR9814859 A BR 9814859A
Authority
BR
Brazil
Prior art keywords
access
synchronization
signal capture
access test
fast signal
Prior art date
Application number
BR9814859-1A
Other languages
English (en)
Other versions
BR9814859B1 (pt
Inventor
Ephraim Zehavi
Gordon Skinner
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 BR9814859A publication Critical patent/BR9814859A/pt
Publication of BR9814859B1 publication Critical patent/BR9814859B1/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
    • 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
    • H04B1/70751—Synchronisation aspects with code phase acquisition using partial detection
    • 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
    • H04B1/7077—Multi-step acquisition, e.g. multi-dwell, coarse-fine or validation
    • 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]
    • 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
    • H04B1/708—Parallel implementation
    • 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
    • H04B1/71—Interference-related aspects the interference being narrowband interference
    • 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)
  • Radio Relay Systems (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)

Abstract

Patente de Invenção: CAPTAçãO DE SINAL E SINCRONIZAçãO RáPIDAS PATA TRANSMISSõES DE ACESSO. Um sistema e um método para captar rapidamente o timing ou temporização de uma transmissão de acesso que utiliza um sensor ou teste de acesso (500) que é transmitido em estágios. Um primeiro estágio (560) do preâmbulo do teste de acesso (520) é espalhado com um par de códigos de pseudo ruído (PN- Pseudo Noise) curtos. Um segundo estágio (570) do preâmbulo de teste de acesso (520) é espalhado tanto com o par de códigos PN curtos como com um código PN longo. A transmissão do teste de acesso (500) em estágios (560, 570) reduz o número de hipóteses, e portanto o tempo, necessário para um receptor captar o teste de acesso (500).
BRPI9814859-1A 1997-11-10 1998-11-10 sistema e mÉtodo para comunicaÇço sem fio, mÉtodo para transmitir uma sonda de acesso, sonda de acesso e mÉtodo para captar uma transmissço em um receptor proveniente de um transmissor. BR9814859B1 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US6519497P 1997-11-10 1997-11-10
US09/098,631 US6044074A (en) 1997-11-10 1998-06-16 Rapid signal acquisition and synchronization for access transmissions
PCT/US1998/023848 WO1999025079A1 (en) 1997-11-10 1998-11-10 Rapid signal acquisition and synchronization for access transmissions

Publications (2)

Publication Number Publication Date
BR9814859A true BR9814859A (pt) 2000-10-03
BR9814859B1 BR9814859B1 (pt) 2013-01-22

Family

ID=26745331

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI9814859-1A BR9814859B1 (pt) 1997-11-10 1998-11-10 sistema e mÉtodo para comunicaÇço sem fio, mÉtodo para transmitir uma sonda de acesso, sonda de acesso e mÉtodo para captar uma transmissço em um receptor proveniente de um transmissor.

Country Status (10)

Country Link
US (1) US6044074A (pt)
EP (1) EP1040604A1 (pt)
JP (1) JP4138241B2 (pt)
KR (1) KR100606620B1 (pt)
CN (1) CN1123151C (pt)
AU (1) AU743460B2 (pt)
BR (1) BR9814859B1 (pt)
CA (1) CA2308631C (pt)
HK (1) HK1033052A1 (pt)
WO (1) WO1999025079A1 (pt)

Families Citing this family (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6240143B1 (en) * 1998-08-18 2001-05-29 Qualcomm Inc. Method and apparatus for the reflection and transmission of quasi orthogonal vectors
DE59914395D1 (de) * 1998-09-22 2007-08-09 Siemens Ag Verfahren zum Empfangen oder Senden von Nachrichten
US6366779B1 (en) * 1998-09-22 2002-04-02 Qualcomm Incorporated Method and apparatus for rapid assignment of a traffic channel in digital cellular communication systems
US6560270B1 (en) * 1999-03-04 2003-05-06 Northrop Grumman Corporation Method for tuning a spread spectrum receiver
US6400706B1 (en) * 1999-04-02 2002-06-04 Qualcomm Incorporated System and method for re-synchronizing a phase-independent first-in first-out memory
US7123579B1 (en) * 1999-08-04 2006-10-17 Lg Electronics Inc. Method of transmitting non-orthogonal physical channels in the communications system
US20070127553A1 (en) 1999-08-13 2007-06-07 Viasat, Inc. Code Reuse Multiple Access For Satellite Return Link
US7224719B1 (en) 2000-03-31 2007-05-29 Qualcomm, Incorporated Fast acquisition of a pilot signal in a wireless communication device
US7006428B2 (en) * 2000-07-19 2006-02-28 Ipr Licensing, Inc. Method for allowing multi-user orthogonal and non-orthogonal interoperability of code channels
US8537656B2 (en) * 2000-07-19 2013-09-17 Ipr Licensing, Inc. Method for compensating for multi-path of a CDMA reverse link utilizing an orthogonal channel structure
US7911993B2 (en) * 2000-07-19 2011-03-22 Ipr Licensing, Inc. Method and apparatus for allowing soft handoff of a CDMA reverse link utilizing an orthogonal channel structure
US7224741B1 (en) * 2000-07-24 2007-05-29 Zion Hadad System and method for cellular communications
US7099629B1 (en) * 2000-11-06 2006-08-29 Qualcomm, Incorporated Method and apparatus for adaptive transmission control in a high data rate communication system
FI110725B (fi) * 2001-04-20 2003-03-14 Nokia Corp Menetelmä vastaanottimen tahdistamisessa ja vastaanotin
US6535548B1 (en) * 2001-04-26 2003-03-18 Motorola, Inc. Mobile wireless communication devices for receiving spread spectrum signals and methods therefor
US6917581B2 (en) * 2001-07-17 2005-07-12 Ipr Licensing, Inc. Use of orthogonal or near orthogonal codes in reverse link
KR100426621B1 (ko) * 2001-12-20 2004-04-13 한국전자통신연구원 단말기의 프리엠블 신호를 탐색하는 작은 창 프리엠블탐색 장치 및 그 방법
US7170889B2 (en) * 2002-05-08 2007-01-30 Hughes Network Systems Llc System and method for efficiently using channel unit hardware to provide multiple narrowband channels overlaid on a single wideband channel in a satellite communications network
US6836506B2 (en) * 2002-08-27 2004-12-28 Qualcomm Incorporated Synchronizing timing between multiple air link standard signals operating within a communications terminal
KR100435117B1 (ko) * 2002-10-15 2004-06-11 에스케이텔레텍주식회사 외부기기와 통신을 위한 이동통신 단말기의 통신 타이밍획득방법
US7822105B2 (en) * 2003-09-02 2010-10-26 Sirf Technology, Inc. Cross-correlation removal of carrier wave jamming signals
JP2007505292A (ja) 2003-09-02 2007-03-08 サーフ テクノロジー インコーポレイテッド 衛星測位システム受信機のための制御と機能
US8325591B2 (en) * 2004-02-26 2012-12-04 Qualcomm Incorporated Suppressing cross-polarization interference in an orthogonal communication link
US8068530B2 (en) * 2004-06-18 2011-11-29 Qualcomm Incorporated Signal acquisition in a wireless communication system
US7760697B1 (en) * 2005-05-24 2010-07-20 L-3 Communications Corporation Fast and long range node discovery in spread spectrum networks
US7436878B1 (en) 2005-05-24 2008-10-14 L-3 Communications Corporation Method and apparatus for efficient carrier bin search for a composite spreading code
US7609751B1 (en) 2005-05-24 2009-10-27 L-3 Communications Corporation Method and apparatus to initiate communications between an unknown node and an existing secure network
KR101184559B1 (ko) * 2005-08-17 2012-09-20 지티이 코포레이션 다중 캐리어 셀 고속 공유 제어 채널의 배치 및 검색 방법
US7991040B2 (en) * 2006-04-04 2011-08-02 Qualcomm Incorporated Methods and apparatus for reduction of a peak to average ratio for an OFDM transmit signal
US8929353B2 (en) * 2007-05-09 2015-01-06 Qualcomm Incorporated Preamble structure and acquisition for a wireless communication system
US8050225B2 (en) 2007-05-21 2011-11-01 Qualcomm Incorporated Assignment of primary and secondary synchronization code sequences to cells in a wireless communication system
JP2012191565A (ja) * 2011-03-14 2012-10-04 Sony Corp 受信装置、受信方法、およびプログラム
CN105204037B (zh) * 2015-09-06 2017-08-11 北京空间飞行器总体设计部 一种长码扩频测距信号相关损失测试方法
DE102019111245A1 (de) * 2019-04-30 2020-11-05 Bayerische Motoren Werke Aktiengesellschaft Vorrichtung zum Bestimmen der Entfernung von einem Sender zu einem Empfänger

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5103459B1 (en) * 1990-06-25 1999-07-06 Qualcomm Inc System and method for generating signal waveforms in a cdma cellular telephone system
JPH08256085A (ja) * 1995-03-17 1996-10-01 Sony Corp スペクトラム拡散通信システム及びその送信機と受信機
US5805648A (en) * 1995-07-31 1998-09-08 Qualcomm Incorporated Method and apparatus for performing search acquisition in a CDMA communication system
US6163533A (en) * 1997-04-30 2000-12-19 Telefonaktiebolaget Lm Ericsson (Publ) Random access in a mobile telecommunications system

Also Published As

Publication number Publication date
AU743460B2 (en) 2002-01-24
HK1033052A1 (en) 2001-08-10
CN1123151C (zh) 2003-10-01
KR20010031867A (ko) 2001-04-16
BR9814859B1 (pt) 2013-01-22
JP2003530720A (ja) 2003-10-14
AU1995799A (en) 1999-05-31
JP4138241B2 (ja) 2008-08-27
CA2308631C (en) 2010-10-05
WO1999025079A9 (en) 1999-08-26
KR100606620B1 (ko) 2006-07-28
CA2308631A1 (en) 1999-05-20
WO1999025079A1 (en) 1999-05-20
CN1278972A (zh) 2001-01-03
EP1040604A1 (en) 2000-10-04
US6044074A (en) 2000-03-28

Similar Documents

Publication Publication Date Title
BR9814859A (pt) Captação de sinal e sincronização rápidas para transmissões de acesso
DK0924532T3 (da) Fremgangsmåde og apparat til modtagelse af GPS/GLONASS-signaler
BR9506273A (pt) Método para determinar a sincronização da sequência pn em um sistema de comunicação de espectro de propagação por sequência direta e aparelho e sistema para selecionar uma sequência de demodulação sincronizada
BR9610551A (pt) Repetidora duplex por divisão de tempo para uso em um sistema cdma
ES2160828T3 (es) Adquisicion de codigo en un sistema de comunicaciones de cdma que usa multiples canales walsh.
BR9913041A (pt) Processos para determinar um grupo de códigos de embaralhamento de sinais para um sinal recebido em um sistema de comunicação digital e uma localização de tempo de um sinal recebido e identificação de uma sequência de walsh-hadamard, para comunicar uma identidade de um grupo de códigos de embaralhamento de sinais para um sinal transmitido em um sistema de comunicação digital, sistema de transmissão de rádio digital, gerador de sinais em um transmissor de rádio e aparelho para uso na determinação de um grupo de códigos de embaralhamento de sinais para um sinal recebido em um sistema de comunicação digital
BR9813026A (pt) Espalhamento de código pn em múltiplas camadas em um sistema de comunicações de múltiplos usuários
ES2191175T3 (es) Procedimiento para la captacion del estado de un organismo por medicion de peptidos.
BR9914658A (pt) Sistema de cancelamento de sinal para uso em um receptor que recebe sinais de comunicação de um transmissor
EP1404032A3 (en) Direct sequence code division multiple access receiver and method of synchronisation therefor
WO2002027293A3 (de) Gas- oder hitzemelder, gaserzeuger oder hitzeerzeuger, rauchgaserzeuger sowie verfahren zum prüfen eines gasmelders oder eines hitzemelders und verfahren zum prüfen eines rauchgasmelders
BR0009919B1 (pt) sistema de teste para a verificaÇço de um poÇo de sondagem, e mÉtodo de verificaÇço de um poÇo.
FR2757825B1 (fr) Procede et systeme de lancement simultane de satellites sur des orbites non coplanaires en utilisant des orbites tres excentriques et du freinage atmospherique
SE9702890L (sv) Oscillationsdetekteringssystem för trådlöst övertag
AU6633500A (en) System and method for detecting a device requiring power
BR9603816B1 (pt) dispositivo e mÉtodo de demodulaÇço em pipeline para receptor de estaÇço base para sinais méltiplos de espectro disperso.
DE602004019644D1 (de) Erkennung und reduktion periodischer störsignale in gps-empfängern und verfahren dafür
DE69828799D1 (de) Isotopengas-analysator
FR2755810B1 (fr) Procede de certification de donnees par embrouillage et systeme de certification utilisant un tel procede
DE69533917D1 (de) Empfangsverfahren und empfänger
DE69926767D1 (de) Endgerät mit parallelem pilotsucher
WO2001034264A8 (en) Acoustic location system
TW429696B (en) Synchronization acquisition apparatus and method thereof
BR9807586A (pt) Método de recepção e receptor
ATE285581T1 (de) Assay-verfahren

Legal Events

Date Code Title Description
B06A Patent application procedure suspended [chapter 6.1 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 22/01/2013, OBSERVADAS AS CONDICOES LEGAIS.

B21F Lapse acc. art. 78, item iv - on non-payment of the annual fees in time

Free format text: REFERENTE A 24A ANUIDADE.

B24J Lapse because of non-payment of annual fees (definitively: art 78 iv lpi, resolution 113/2013 art. 12)

Free format text: EM VIRTUDE DA EXTINCAO PUBLICADA NA RPI 2696 DE 06-09-2022 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDA A EXTINCAO DA PATENTE E SEUS CERTIFICADOS, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013.