ES2723757T3 - Técnicas de realimentación de información de estado de canal en sistema de comunicación inalámbrica - Google Patents

Técnicas de realimentación de información de estado de canal en sistema de comunicación inalámbrica Download PDF

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Publication number
ES2723757T3
ES2723757T3 ES10767327T ES10767327T ES2723757T3 ES 2723757 T3 ES2723757 T3 ES 2723757T3 ES 10767327 T ES10767327 T ES 10767327T ES 10767327 T ES10767327 T ES 10767327T ES 2723757 T3 ES2723757 T3 ES 2723757T3
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Prior art keywords
tpcc
cqi
cells
tpccs
feedback information
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ES10767327T
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English (en)
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Lingjia Liu
Jianzhong Zhang
In-Ho Lee
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Samsung Electronics Co Ltd
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Samsung Electronics Co Ltd
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Publication of ES2723757T3 publication Critical patent/ES2723757T3/es
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0621—Feedback content
    • H04B7/0632—Channel quality parameters, e.g. channel quality indicator [CQI]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/20—Monitoring; Testing of receivers
    • H04B17/24—Monitoring; Testing of receivers with feedback of measurements to the transmitter
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/022—Site diversity; Macro-diversity
    • H04B7/024—Co-operative use of antennas of several sites, e.g. in co-ordinated multipoint or co-operative multiple-input multiple-output [MIMO] systems
    • 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
    • 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
    • H04L25/0204—Channel estimation of multiple channels
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Un procedimiento para que un terminal transmita información de realimentación a una estación base en un sistema de comunicación inalámbrica, comprendiendo el procedimiento: obtener (510) una pluralidad de configuraciones de puntos de transmisión para multipuntos coordinados, CoMP, TPCC, incluyendo cada TPCC una combinación única de una o más células de una pluralidad de células en un conjunto de medición de CoMP, e incluyendo al menos una de las TPCC una combinación única de más de una célula en el conjunto de medición de CoMP; estimar (520) una pluralidad de canales para la pluralidad de células en el conjunto de medición de CoMP; calcular (530) una pluralidad de valores de indicación de calidad de canal, CQI, siendo cada valor de CQI en base a cada una de al menos una de la pluralidad de TPCC, calculándose cada valor de CQI usando uno o más de la pluralidad de canales estimados que corresponden a la combinación única de una o más células incluidas en una correspondiente TPCC; generar (540) información de realimentación de CQI que incluye un CQI de una célula de ancla entre la pluralidad de células y uno o más CQI de una o más mejores TPCC, informándose un número de la una o más mejores TPCC al terminal mediante la estación base; y transmitir la información de realimentación de CQI, en el que la una o más mejor TPCC se determina en base a dos o más métricas de rendimiento relacionadas con calidad de señal recibida para dos o más de la pluralidad de TPCC.
ES10767327T 2009-04-24 2010-04-23 Técnicas de realimentación de información de estado de canal en sistema de comunicación inalámbrica Active ES2723757T3 (es)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US21452409P 2009-04-24 2009-04-24
US12/758,322 US8917707B2 (en) 2009-04-24 2010-04-12 Techniques for channel state information feedback in wireless communication system
PCT/KR2010/002564 WO2010123313A2 (en) 2009-04-24 2010-04-23 Techniques for channel state information feedback in wireless communication system

Publications (1)

Publication Number Publication Date
ES2723757T3 true ES2723757T3 (es) 2019-08-30

Family

ID=42992035

Family Applications (1)

Application Number Title Priority Date Filing Date
ES10767327T Active ES2723757T3 (es) 2009-04-24 2010-04-23 Técnicas de realimentación de información de estado de canal en sistema de comunicación inalámbrica

Country Status (5)

Country Link
US (1) US8917707B2 (es)
EP (1) EP2422462B1 (es)
KR (1) KR101682260B1 (es)
ES (1) ES2723757T3 (es)
WO (1) WO2010123313A2 (es)

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Publication number Publication date
WO2010123313A3 (en) 2011-02-03
US8917707B2 (en) 2014-12-23
KR20120007526A (ko) 2012-01-20
KR101682260B1 (ko) 2016-12-05
EP2422462A4 (en) 2017-09-06
WO2010123313A2 (en) 2010-10-28
EP2422462B1 (en) 2019-02-27
EP2422462A2 (en) 2012-02-29
US20100271968A1 (en) 2010-10-28

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