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AR013952A1 - Transmisor de espectro esparcido de secuencia directa y metodo - Google Patents

Transmisor de espectro esparcido de secuencia directa y metodo

Info

Publication number
AR013952A1
AR013952A1 ARP980104274A ARP980104274A AR013952A1 AR 013952 A1 AR013952 A1 AR 013952A1 AR P980104274 A ARP980104274 A AR P980104274A AR P980104274 A ARP980104274 A AR P980104274A AR 013952 A1 AR013952 A1 AR 013952A1
Authority
AR
Argentina
Prior art keywords
channels
signals
acquisition
generate
direct sequence
Prior art date
Application number
ARP980104274A
Other languages
English (en)
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 AR013952A1 publication Critical patent/AR013952A1/es

Links

Classifications

    • 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
    • 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]

Landscapes

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

Abstract

Con respecto al transmisor de espectro esparcido de acceso multiple por division de codigos de secuencia directa, se esparce informacion de símbolosrelativa a canales dedicados y comunes (tales como los canales de tráfico o los canales de control) para generar las correspondientes multiples senalesintermedias de canales dedicados y comunes. Esas senales intermedias luego se suman para generar una senal de salida que mezcla un codigo mezcladorseleccionado. También se esparce la informacionde símbolos relativos a los canales referidos a adquisicion (tales como los canales de informacion sobresincronizacion o los de codigos de grupo de codigos largos) para generar las correspondientes multiples senales intermedias referidas a adquisicion. Esassenales intermedias referidas a adquisicion se agregan luego selectivamente a la senal de salida mezclada, que produce una senal de enlace descendentedestinada a la transmision en multiples canales por un medio de comunicaciones quecomparten una sola frecuencia de comunicaciones de transmision.
ARP980104274A 1997-08-29 1998-08-27 Transmisor de espectro esparcido de secuencia directa y metodo AR013952A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/924,709 US5956368A (en) 1997-08-29 1997-08-29 Downlink channel handling within a spread spectrum communications system

Publications (1)

Publication Number Publication Date
AR013952A1 true AR013952A1 (es) 2001-01-31

Family

ID=25450591

Family Applications (1)

Application Number Title Priority Date Filing Date
ARP980104274A AR013952A1 (es) 1997-08-29 1998-08-27 Transmisor de espectro esparcido de secuencia directa y metodo

Country Status (13)

Country Link
US (1) US5956368A (es)
EP (1) EP1010263A1 (es)
JP (1) JP2001515300A (es)
KR (1) KR20010023157A (es)
CN (1) CN1278378A (es)
AR (1) AR013952A1 (es)
AU (1) AU755198B2 (es)
BR (1) BR9811392A (es)
CA (1) CA2300996A1 (es)
RU (1) RU2209514C2 (es)
TW (1) TW480853B (es)
WO (1) WO1999012282A1 (es)
ZA (1) ZA987255B (es)

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US6298082B1 (en) * 1998-10-19 2001-10-02 Motorola, Inc. Method and system for combining orthogonal transmit diversity and adaptive array techniques in a wireless communications system
US6233231B1 (en) * 1998-12-03 2001-05-15 Motorola, Inc. Data transmission within a spread-spectrum communication system
US6804214B1 (en) * 1999-04-19 2004-10-12 Telefonaktiebolaget Lm Ericsson (Publ) System and method for implementing multiple carriers in cellular networks
CA2334898C (en) * 1999-04-29 2007-06-05 Samsung Electronics Co., Ltd. Apparatus and method for synchronizing channels in a w-cdma communication system
KR100429545B1 (ko) * 1999-08-17 2004-04-28 삼성전자주식회사 이동통신 시스템의 스크램블링 부호의 식별자 통신방법
KR100585832B1 (ko) * 1999-09-30 2006-06-01 에스케이 텔레콤주식회사 부호분할 다중접속 시스템의 채널 확장 장치 및 방법
FI109071B (fi) * 2000-01-17 2002-05-15 Nokia Corp Signalointimenetelmä
JP2001244849A (ja) * 2000-02-29 2001-09-07 Matsushita Electric Ind Co Ltd 通信端末装置及びセルサーチ方法
KR100627188B1 (ko) * 2000-07-04 2006-09-22 에스케이 텔레콤주식회사 무선통신 역방향 동기 방식에서의 코드 할당 방법
US6999471B1 (en) * 2000-11-28 2006-02-14 Soma Networks, Inc. Communication structure for multiplexed links
CN100490342C (zh) * 2001-07-13 2009-05-20 汤姆森特许公司 蜂窝式系统中的数字音频/视频广播
US7743115B2 (en) * 2002-02-27 2010-06-22 Motorola, Inc. Software content downloading methods in radio communication networks
CA2511324C (en) 2002-12-20 2011-09-27 Interdigital Technology Corporation Method and apparatus for limiting a transport format combination (tfc) set
US7660282B2 (en) 2003-02-18 2010-02-09 Qualcomm Incorporated Congestion control in a wireless data network
US20040160922A1 (en) 2003-02-18 2004-08-19 Sanjiv Nanda Method and apparatus for controlling data rate of a reverse link in a communication system
US8150407B2 (en) 2003-02-18 2012-04-03 Qualcomm Incorporated System and method for scheduling transmissions in a wireless communication system
US8081598B2 (en) 2003-02-18 2011-12-20 Qualcomm Incorporated Outer-loop power control for wireless communication systems
US7155236B2 (en) 2003-02-18 2006-12-26 Qualcomm Incorporated Scheduled and autonomous transmission and acknowledgement
US8391249B2 (en) * 2003-02-18 2013-03-05 Qualcomm Incorporated Code division multiplexing commands on a code division multiplexed channel
US8023950B2 (en) 2003-02-18 2011-09-20 Qualcomm Incorporated Systems and methods for using selectable frame durations in a wireless communication system
US7215930B2 (en) 2003-03-06 2007-05-08 Qualcomm, Incorporated Method and apparatus for providing uplink signal-to-noise ratio (SNR) estimation in a wireless communication
US8705588B2 (en) 2003-03-06 2014-04-22 Qualcomm Incorporated Systems and methods for using code space in spread-spectrum communications
US7388899B2 (en) * 2003-03-10 2008-06-17 Texas Instruments Incorporated Spreading code structure for ultra wide band communications
JP4116925B2 (ja) * 2003-05-13 2008-07-09 松下電器産業株式会社 無線基地局装置、制御局装置、通信端末装置、送信信号生成方法、受信方法及び無線通信システム
US8477592B2 (en) 2003-05-14 2013-07-02 Qualcomm Incorporated Interference and noise estimation in an OFDM system
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US8085875B2 (en) * 2004-07-16 2011-12-27 Qualcomm Incorporated Incremental pilot insertion for channnel and interference estimation
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US5805584A (en) * 1996-02-23 1998-09-08 L-3 Communications Corporation Multi-user acquisition procedure for point-to-multipoint synchronous CDMA systems

Also Published As

Publication number Publication date
CN1278378A (zh) 2000-12-27
AU755198B2 (en) 2002-12-05
ZA987255B (en) 1999-02-15
BR9811392A (pt) 2000-08-29
RU2209514C2 (ru) 2003-07-27
KR20010023157A (ko) 2001-03-26
CA2300996A1 (en) 1999-03-11
WO1999012282A1 (en) 1999-03-11
AU8896598A (en) 1999-03-22
EP1010263A1 (en) 2000-06-21
US5956368A (en) 1999-09-21
TW480853B (en) 2002-03-21
JP2001515300A (ja) 2001-09-18

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