BR9814955A - Compartilhamento de partição de canal de acesso - Google Patents
Compartilhamento de partição de canal de acessoInfo
- 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
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.
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US6519497P | 1997-11-10 | 1997-11-10 | |
US6516997P | 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 (16)
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 |
US8483105B2 (en) | 2003-10-15 | 2013-07-09 | Qualcomm Incorporated | High speed media access control |
US8842657B2 (en) | 2003-10-15 | 2014-09-23 | Qualcomm Incorporated | High speed media access control with legacy system interoperability |
US9226308B2 (en) | 2003-10-15 | 2015-12-29 | Qualcomm Incorporated | Method, apparatus, and system for medium access control |
US8233462B2 (en) | 2003-10-15 | 2012-07-31 | Qualcomm Incorporated | High speed media access control and direct link protocol |
US8903440B2 (en) | 2004-01-29 | 2014-12-02 | Qualcomm Incorporated | Distributed hierarchical scheduling in an ad hoc network |
US8027372B2 (en) | 2004-06-18 | 2011-09-27 | 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 |
US8929353B2 (en) | 2007-05-09 | 2015-01-06 | Qualcomm Incorporated | Preamble structure and acquisition for a wireless communication system |
BRPI0712926B1 (pt) | 2006-06-13 | 2019-11-12 | Qualcomm Inc | estrutura de preâmbulo e aquisição para um sistema de comunicação sem fio |
JPWO2007145273A1 (ja) * | 2006-06-15 | 2009-11-12 | パナソニック株式会社 | 無線送信装置 |
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 (2)
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 |
US6163533A (en) * | 1997-04-30 | 2000-12-19 | Telefonaktiebolaget Lm Ericsson (Publ) | Random access in a mobile telecommunications system |
-
1998
- 1998-11-10 WO PCT/US1998/023849 patent/WO1999025080A1/en active Search and Examination
- 1998-11-10 RU RU2000114883/09A patent/RU2214687C2/ru not_active IP Right Cessation
- 1998-11-10 EP EP98962804A patent/EP1031196B1/en not_active Expired - Lifetime
- 1998-11-10 BR BR9814955-5A patent/BR9814955A/pt not_active Application Discontinuation
- 1998-11-10 DE DE69838557T patent/DE69838557T2/de not_active Expired - Lifetime
- 1998-11-10 AU AU17961/99A patent/AU753158B2/en not_active Ceased
- 1998-11-10 JP JP2000519963A patent/JP2004503950A/ja active Pending
- 1998-11-10 ES ES98962804T patent/ES2293698T3/es not_active Expired - Lifetime
- 1998-11-10 AT AT98962804T patent/ATE375636T1/de not_active IP Right Cessation
- 1998-11-10 CA CA002309062A patent/CA2309062C/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
RU2214687C2 (ru) | 2003-10-20 |
ES2293698T3 (es) | 2008-03-16 |
ATE375636T1 (de) | 2007-10-15 |
JP2004503950A (ja) | 2004-02-05 |
DE69838557T2 (de) | 2008-07-24 |
EP1031196A1 (en) | 2000-08-30 |
WO1999025080A1 (en) | 1999-05-20 |
CA2309062A1 (en) | 1999-05-20 |
CA2309062C (en) | 2008-07-22 |
DE69838557D1 (de) | 2007-11-22 |
AU753158B2 (en) | 2002-10-10 |
AU1796199A (en) | 1999-05-31 |
EP1031196B1 (en) | 2007-10-10 |
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 | |
FI963153A0 (fi) | Dynaaminen sektorointi hajaspektritietoliikennejärjestelmässä | |
NO991788D0 (no) | FremgangsmÕte for tildeling av kanaler, samt radiosystem som benytter en kombinasjon av TDMA og CDMA | |
CA2298690A1 (en) | Method for generating quasi-orthogonal code and spreader using the same in mobile communication system | |
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 | |
BR9608353A (pt) | Canal de comunicação por acesso randomico para serviço de dados | |
SE0202405D0 (sv) | Förfarande för sändning/mottagning av information avseende faktorkoder för ortogonal variabel spridning, vilka tilldelas användardata i ett kommunikationssystem för paketåtkomst med höghastighetsdata | |
CA2214809A1 (en) | Method and system for communication over multiple channels in a spread spectrum communication system | |
DE69841326D1 (de) | Mehrlagige pn-kodespreizung in einem mehrbenutzerkommunikationssystem | |
SE9904299D0 (sv) | Method in a telecommunication system | |
CA2302691A1 (en) | Method and apparatus for providing orthogonal spot beams, sectors, and picocells | |
CA2387697A1 (en) | A digital correlator | |
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 | |
CA2263187A1 (en) | Cdma system with dynamic multiple pilot channel assignment | |
KR980007115A (ko) | 코드 분할 다중 접속(cdma) 이동통신 시스템에서의 퍼치 채널 송신 및 셀 선택방법. | |
EP0836296A3 (en) | System and method for dynamic time division access | |
NO983232D0 (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 |
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 |