[go: up one dir, main page]

BR9814955A - Compartilhamento de partição de canal de acesso - Google Patents

Compartilhamento de partição de canal de acesso

Info

Publication number
BR9814955A
BR9814955A BR9814955-5A BR9814955A BR9814955A BR 9814955 A BR9814955 A BR 9814955A BR 9814955 A BR9814955 A BR 9814955A BR 9814955 A BR9814955 A BR 9814955A
Authority
BR
Brazil
Prior art keywords
access
probe
modulated
access channel
access probe
Prior art date
Application number
BR9814955-5A
Other languages
English (en)
Inventor
David S Miller
Rajiv Vijayan
Ephaim Zehavi
Jeffrey A Levin
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
Priority claimed from US09/098,631 external-priority patent/US6044074A/en
Priority claimed from US09/189,357 external-priority patent/US6167056A/en
Application filed by Qualcomm Inc filed Critical Qualcomm Inc
Publication of BR9814955A publication Critical patent/BR9814955A/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
    • H04B1/7077—Multi-step acquisition, e.g. multi-dwell, coarse-fine or validation
    • 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
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/204—Multiple access
    • H04B7/216—Code division or spread-spectrum multiple access [CDMA, SSMA]
    • 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]
    • H04B7/2637—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] for logical channel control
    • 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)
  • Transceivers (AREA)

Abstract

Patente de Invenção: COMPARTILHAMENTO DE PARTIçãO DE CANAL DE ACESSO. A presente invenção consiste de um sistema e um método para aumentar a capacidade de usuários em um canal de acesso aleatório particionado em um sistema de comunicações de espectro espalhado (100) pelo uso de um sensor ou teste de acesso de múltiplas partes (502). As primeira e segunda partes (508, 510) de um preâmbulo (604) de teste de acesso são moduladas usando-se uma seq³ência de código PN curta (620) e a segunda parte e o restante do teste de acesso (502) são modulados usando-se uma seq³ência de código PN longa. As informações a serem transmitidas pelo teste de acesso (502) são modulados na segunda parte (606) do teste de acesso (502) e o teste de acesso é transmitido de forma a que a primeira parte (508) do preâmbulo do teste (604) fique dentro dos limites de uma partição de canal de acesso (402). Em uma modalidade, partições de tempo (402) nos canais de acesso (400) usados para a recepção dos sinais de acesso são geradas com o comprimento ou duração da primeira parte (508). Em outra modalidade, as partições de tempo (402) em uma pluralidade de canais de acesso adjacentes usados para a recepção do sinal de acesso pode ser mais longas que a primeira parte (508) porém estão deslocadas em tempo umas das outras pelo comprimento ou período da primeira parte.
BR9814955-5A 1997-11-10 1998-11-10 Compartilhamento de partição de canal de acesso BR9814955A (pt)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US6516997P 1997-11-10 1997-11-10
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
US09/189,357 US6167056A (en) 1997-11-10 1998-11-09 Access channel slot sharing
PCT/US1998/023849 WO1999025080A1 (en) 1997-11-10 1998-11-10 Access channel slot sharing

Publications (1)

Publication Number Publication Date
BR9814955A true BR9814955A (pt) 2000-10-03

Family

ID=27490476

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9814955-5A BR9814955A (pt) 1997-11-10 1998-11-10 Compartilhamento de partição de canal de acesso

Country Status (10)

Country Link
EP (1) EP1031196B1 (pt)
JP (1) JP2004503950A (pt)
AT (1) ATE375636T1 (pt)
AU (1) AU753158B2 (pt)
BR (1) BR9814955A (pt)
CA (1) CA2309062C (pt)
DE (1) DE69838557T2 (pt)
ES (1) ES2293698T3 (pt)
RU (1) RU2214687C2 (pt)
WO (1) WO1999025080A1 (pt)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10056086C2 (de) * 2000-11-07 2002-12-05 Iq Wireless Gmbh Verfahren für die Synchronisation in einem Funkkommunikationssystem
US9226308B2 (en) 2003-10-15 2015-12-29 Qualcomm Incorporated Method, apparatus, and system for medium access control
US8842657B2 (en) 2003-10-15 2014-09-23 Qualcomm Incorporated High speed media access control with legacy system interoperability
US8233462B2 (en) 2003-10-15 2012-07-31 Qualcomm Incorporated High speed media access control and direct link protocol
US8483105B2 (en) 2003-10-15 2013-07-09 Qualcomm Incorporated High speed media access control
RU2304359C2 (ru) * 2003-11-10 2007-08-10 Корпорация "Самсунг Электроникс" Способ частотно-временной синхронизации системы связи и устройство для его осуществления
US8903440B2 (en) 2004-01-29 2014-12-02 Qualcomm Incorporated Distributed hierarchical scheduling in an ad hoc network
US8068530B2 (en) * 2004-06-18 2011-11-29 Qualcomm Incorporated Signal acquisition in a wireless communication system
KR100856249B1 (ko) * 2004-08-26 2008-09-03 삼성전자주식회사 무선 통신 시스템에서 초기 동작 모드 검출 방법
US8600336B2 (en) * 2005-09-12 2013-12-03 Qualcomm Incorporated Scheduling with reverse direction grant in wireless communication systems
US8738056B2 (en) 2006-05-22 2014-05-27 Qualcomm Incorporation Signal acquisition in a wireless communication system
CN101467413B (zh) 2006-06-13 2013-08-21 高通股份有限公司 用于在无线通信系统中发送和接收导频的方法和装置
US8929353B2 (en) 2007-05-09 2015-01-06 Qualcomm Incorporated Preamble structure and acquisition for a wireless communication system
WO2007145273A1 (ja) * 2006-06-15 2007-12-21 Panasonic Corporation 無線送信装置及び無線送信方法
US8023398B2 (en) 2007-01-30 2011-09-20 Qualcomm Incorporated Using a single FHT to decode access-based handoff probes from multiple users
US8971230B2 (en) * 2007-08-17 2015-03-03 Ntt Docomo, Inc. Mobile communication method, radio base station apparatus and mobile station
JP5482068B2 (ja) 2009-10-01 2014-04-23 ソニー株式会社 中継局、中継方法、無線通信システム及び無線通信装置

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
US5758090A (en) * 1995-09-22 1998-05-26 Airnet Communications, Inc. Frequency reuse planning for CDMA cellular communication system by grouping of available carrier frequencies and power control based on the distance from base station
RU2082279C1 (ru) * 1996-10-09 1997-06-20 Акционерное общество Инженерный центр "Геосеть-Сибирь" Система определения местонахождения подвижных объектов
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
ATE375636T1 (de) 2007-10-15
DE69838557D1 (de) 2007-11-22
JP2004503950A (ja) 2004-02-05
EP1031196A1 (en) 2000-08-30
DE69838557T2 (de) 2008-07-24
CA2309062C (en) 2008-07-22
AU1796199A (en) 1999-05-31
ES2293698T3 (es) 2008-03-16
AU753158B2 (en) 2002-10-10
WO1999025080A1 (en) 1999-05-20
CA2309062A1 (en) 1999-05-20
EP1031196B1 (en) 2007-10-10
RU2214687C2 (ru) 2003-10-20

Similar Documents

Publication Publication Date Title
BR9814955A (pt) Compartilhamento de partição de canal de acesso
KR930702832A (ko) 다중 사용자 스펙트럼 확산 통신 시스템
SE9702891L (sv) Kommunikationssystem med spritt spektrum
NO991788L (no) FremgangsmÕte for tildeling av kanaler, samt radiosystem som benytter en kombinasjon av TDMA og CDMA
FI963153A0 (fi) Dynaaminen sektorointi hajaspektritietoliikennejärjestelmässä
CA2302691A1 (en) Method and apparatus for providing orthogonal spot beams, sectors, and picocells
RU2000103213A (ru) Выделение кодов формирования каналов для систем радиосвязи
BR9910987A (pt) Processo para operar um sistema de rádio comunicação, e, aparelho para uso em um sistema de rádio comunicação
KR940017330A (ko) 통신방법 및 시스템
DK1843622T3 (da) Event-udløst ændring af adgangsserviceklasse i en randomiseret adgangskanal
CA2214809A1 (en) Method and system for communication over multiple channels in a spread spectrum communication system
SE9904299D0 (sv) Method in a telecommunication system
ATE517535T1 (de) Zeitweilige dienstunterbrechung für hochgeschwindigkeitsdatenübetragung
BR9608879A (pt) Sistema de comunicação de acesso múltiplo por divisão de frequéncia e código ortogonal duplo
SE0301969L (sv) CDMA-spridningskrets med variabel hastighet
EP0940937A3 (en) Cellular system using a CDMA scheme and comprising a plurality of pilot channels
KR980007115A (ko) 코드 분할 다중 접속(cdma) 이동통신 시스템에서의 퍼치 채널 송신 및 셀 선택방법.
CA2204680A1 (en) System and method for dynamic time division access
DE60036090D1 (de) Verfahren zur datenratenzuteilung in datenkommunikationsnetzwerk
NO983232L (no) Dynamisk kanaltildeling
KR970068212A (ko) 확산부호와 확산 부호 위상을 사용하는 부호 분할 다중접속(cdma) 이동 통신 시스템의 셀 선택 방법 및 기지국 장치와 이동국 장치
MY123015A (en) Radiotelephone communication systems and methods that map an access request into a predetermined random access channel slot to identify a nearest gateway to a radiotelephone
FI955497A0 (fi) Foerfarande och arrangemang foer asynkronisk dataoeverfoering
DK1338170T3 (da) System og fremgangsmåde til styring af konfliktende tilgang
EP2299608A3 (en) A cell search method and a base station for a code division multiple access mobile communication system

Legal Events

Date Code Title Description
B06A Patent application procedure suspended [chapter 6.1 patent gazette]
B11B Dismissal acc. art. 36, par 1 of ipl - no reply within 90 days to fullfil the necessary requirements