MX2009009755A - Configuracion de piloto hibrido. - Google Patents

Configuracion de piloto hibrido.

Info

Publication number
MX2009009755A
MX2009009755A MX2009009755A MX2009009755A MX2009009755A MX 2009009755 A MX2009009755 A MX 2009009755A MX 2009009755 A MX2009009755 A MX 2009009755A MX 2009009755 A MX2009009755 A MX 2009009755A MX 2009009755 A MX2009009755 A MX 2009009755A
Authority
MX
Mexico
Prior art keywords
pilot symbols
dedicated
channels
utilized
demodulate
Prior art date
Application number
MX2009009755A
Other languages
English (en)
Inventor
Durga Prasad Malladi
Dung N Doan
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 MX2009009755A publication Critical patent/MX2009009755A/es

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/0224—Channel estimation using sounding signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H04L5/005—Allocation of pilot signals, i.e. of signals known to the receiver of common pilots, i.e. pilots destined for multiple users or terminals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H04L5/0051—Allocation of pilot signals, i.e. of signals known to the receiver of dedicated pilots, i.e. pilots destined for a single user or terminal
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Power Engineering (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Time-Division Multiplex Systems (AREA)

Abstract

Se describen sistemas y metodologías que facilitan el empleo de una configuración de piloto híbrido en una red de comunicaciones inalámbricas; una configuración de piloto híbrido incluye símbolos piloto comunes y pilotos dedicados multiplexados juntos dentro de un intervalo de tiempo de transmisión; los símbolos piloto multiplexados pueden ser recibidos y utilizados para desmodular canales; los símbolos piloto comunes pueden ser empleados para desmodular canales de control y los símbolos piloto dedicados pueden ser utilizados para desmodular canales de datos; además, los símbolos piloto dedicados pueden ser empleados para generar un estimado de canal; los canales piloto comunes pueden ser utilizados en combinación con los símbolos piloto dedicados a fin de aumentar el estimado de canal.
MX2009009755A 2007-03-12 2008-03-12 Configuracion de piloto hibrido. MX2009009755A (es)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US89444907P 2007-03-12 2007-03-12
US12/045,501 US8913695B2 (en) 2007-03-12 2008-03-10 Hybrid pilot configuration
PCT/US2008/056715 WO2008112803A2 (en) 2007-03-12 2008-03-12 Hybrid pilot configuration

Publications (1)

Publication Number Publication Date
MX2009009755A true MX2009009755A (es) 2009-09-24

Family

ID=39760383

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2009009755A MX2009009755A (es) 2007-03-12 2008-03-12 Configuracion de piloto hibrido.

Country Status (13)

Country Link
US (1) US8913695B2 (es)
EP (1) EP2135417A2 (es)
JP (3) JP2010521890A (es)
KR (1) KR101076158B1 (es)
CN (1) CN101632278B (es)
AU (1) AU2008225096A1 (es)
BR (1) BRPI0808690B1 (es)
CA (1) CA2678445C (es)
IL (1) IL200462A0 (es)
MX (1) MX2009009755A (es)
RU (1) RU2440687C2 (es)
TW (1) TWI394412B (es)
WO (1) WO2008112803A2 (es)

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KR101414611B1 (ko) * 2007-04-19 2014-07-07 엘지전자 주식회사 다중 안테나 시스템에서 신호 송신 방법
CN101796862B (zh) * 2007-09-04 2013-11-06 夏普株式会社 基站装置、移动站装置、分布天线无线通信系统、导频信道生成方法、同步信道生成方法及天线选择方法
ES2576730T3 (es) 2008-02-14 2016-07-11 Telefonaktiebolaget Lm Ericsson (Publ) Métodos y disposiciones en un sistema de telecomunicaciones móvil
CN101610101B (zh) * 2008-06-16 2013-02-27 中兴通讯股份有限公司 一种下行专用导频的跳频方法
EP2293473B8 (en) * 2008-06-23 2016-09-21 Sun Patent Trust Method of arranging reference signals and wireless communication base station apparatus
KR101637348B1 (ko) * 2008-12-15 2016-07-07 엘지전자 주식회사 하향링크 ｍｉｍｏ 시스템에 있어서, 파일럿 심볼 전송 방법
US20100097937A1 (en) * 2008-10-16 2010-04-22 Interdigital Patent Holdings, Inc. Method and apparatus for wireless transmit/receive unit specific pilot signal transmission and wireless transmit/receive unit specific pilot signal power boosting
US8767843B2 (en) * 2008-11-10 2014-07-01 Motorola Mobility Llc Employing cell-specific and user entity-specific reference symbols in an orthogonal frequency-division multiple access
EP2430769B1 (en) * 2009-03-16 2017-09-13 BlackBerry Limited Transmission using common and dedicated pilots
CN101841358B (zh) 2009-03-20 2013-08-21 富士通株式会社 基站和移动台
CN102035777B (zh) * 2009-09-24 2014-03-12 中兴通讯股份有限公司 解调导频的处理方法和系统、配置方法、基站、用户设备
KR101109383B1 (ko) 2009-11-25 2012-01-30 서울대학교산학협력단 직교주파수 분할다중 기반 무선통신 시스템에서 전용 파일럿 신호를 이용한 채널추정 방법 및 장치
KR101559295B1 (ko) * 2009-12-04 2015-10-12 삼성전자주식회사 공간 분할 다중 사용자 다중 입력 다중 출력 방식을 이용하는 통신 시스템
GB2482122B (en) * 2010-07-19 2014-02-19 Intellectual Ventures Holding 81 Llc Communication unit and pilot method for time varying channels
CN102307083A (zh) * 2011-08-12 2012-01-04 电信科学技术研究院 信道状态信息的非周期反馈及其调度方法、装置及系统
US9276629B2 (en) * 2011-11-17 2016-03-01 Intel Deutschland Gmbh Rake receiver circuit and method for operating a rake receiver circuit
JP6093378B2 (ja) * 2012-01-30 2017-03-08 テレフオンアクチーボラゲット エルエム エリクソン（パブル） マルチアンテナ無線通信において共通パイロット信号及び復調パイロット信号を使用する方法、装置及びシステム
JP5883339B2 (ja) * 2012-04-06 2016-03-15 株式会社Ｎｔｔドコモ 通信システム、移動端末装置、ローカルエリア基地局装置及び通信方法
CN102917371B (zh) * 2012-10-25 2015-06-24 北京大学 适合室内信道的lte小区专用参考信号优化方法
US9313059B2 (en) * 2012-12-21 2016-04-12 Qualcomm Incorporated Data-modulated pilots for phase and gain detectors
US9949251B2 (en) * 2013-05-31 2018-04-17 Telefonaktiebolaget L M Ericsson (Publ) Methods and user equipments for data demodulation
US20160277167A1 (en) * 2014-03-31 2016-09-22 Sony Corporation Pilot time slot hopping
US10616845B2 (en) 2016-10-13 2020-04-07 Qualcomm Incorporated Coordinated resource discovery

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TW347616B (en) 1995-03-31 1998-12-11 Qualcomm Inc Method and apparatus for performing fast power control in a mobile communication system a method and apparatus for controlling transmission power in a mobile communication system is disclosed.
US5878036A (en) 1995-12-20 1999-03-02 Spartz; Michael K. Wireless telecommunications system utilizing CDMA radio frequency signal modulation in conjunction with the GSM A-interface telecommunications network protocol
US5787079A (en) * 1996-04-23 1998-07-28 Unique Wireless Developments, L.L.C. Method and apparatus for creating multiple subchannels in a single two-way radio channel
DE19747369A1 (de) 1997-10-27 1999-05-06 Siemens Ag Übertragungskanalschätzung in Telekommunikationssystemen mit drahtloser Telekommunikation
CN1703034A (zh) * 2005-06-10 2005-11-30 上海贝豪通讯电子有限公司 一种基于mimo－ofdm系统的信道估计方法
JP4869724B2 (ja) 2005-06-14 2012-02-08 株式会社エヌ・ティ・ティ・ドコモ 送信装置、送信方法、受信装置及び受信方法
US8559295B2 (en) 2005-08-15 2013-10-15 Motorola Mobility Llc Method and apparatus for pilot signal transmission
JPWO2007020710A1 (ja) 2005-08-19 2009-02-19 パナソニック株式会社 基地局装置および移動局装置
EP1811734B1 (en) * 2006-01-19 2009-12-16 Samsung Electronics Co., Ltd. Method and apparatus for controlling transmission and reception of dedicated pilots according to MCS level in a wireless communication system
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Also Published As

Publication number Publication date
JP6359515B2 (ja) 2018-07-18
WO2008112803A2 (en) 2008-09-18
AU2008225096A1 (en) 2008-09-18
CN101632278A (zh) 2010-01-20
US8913695B2 (en) 2014-12-16
RU2440687C2 (ru) 2012-01-20
TWI394412B (zh) 2013-04-21
CN101632278B (zh) 2014-04-23
IL200462A0 (en) 2010-04-29
RU2009137592A (ru) 2011-04-20
JP2010521890A (ja) 2010-06-24
JP2014014103A (ja) 2014-01-23
JP2016106456A (ja) 2016-06-16
US20080225993A1 (en) 2008-09-18
BRPI0808690A2 (pt) 2014-09-02
EP2135417A2 (en) 2009-12-23
KR101076158B1 (ko) 2011-10-21
TW200904085A (en) 2009-01-16
BRPI0808690B1 (pt) 2020-05-19
CA2678445C (en) 2014-01-21
WO2008112803A3 (en) 2008-11-27
CA2678445A1 (en) 2008-09-18
KR20090119995A (ko) 2009-11-23

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