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AR060166A1 - Retroalimentacion de informacion sobre el estado del canal para mimo, y programacion de subbandas en un sistema de comunicaciones inalambricas - Google Patents

Retroalimentacion de informacion sobre el estado del canal para mimo, y programacion de subbandas en un sistema de comunicaciones inalambricas

Info

Publication number
AR060166A1
AR060166A1 ARP070101280A ARP070101280A AR060166A1 AR 060166 A1 AR060166 A1 AR 060166A1 AR P070101280 A ARP070101280 A AR P070101280A AR P070101280 A ARP070101280 A AR P070101280A AR 060166 A1 AR060166 A1 AR 060166A1
Authority
AR
Argentina
Prior art keywords
information
space
subbands
frequency
cqi
Prior art date
Application number
ARP070101280A
Other languages
English (en)
Inventor
Byoung-Hoon Kim
Durga Prasad Malladi
Jelena Damnjanovic
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 AR060166A1 publication Critical patent/AR060166A1/es

Links

Classifications

    • 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
    • H04B7/0626—Channel coefficients, e.g. channel state information [CSI]
    • 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
    • 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
    • H04B7/0636—Feedback format
    • H04B7/0641—Differential feedback
    • 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
    • H04B7/0658—Feedback reduction
    • H04B7/066—Combined feedback for a number of channels, e.g. over several subcarriers like in orthogonal frequency division multiplexing [OFDM]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0026—Transmission of channel quality indication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0028—Formatting
    • H04L1/0029—Reduction of the amount of signalling, e.g. retention of useful signalling or differential signalling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/02—Arrangements for detecting or preventing errors in the information received by diversity reception
    • H04L1/06—Arrangements for detecting or preventing errors in the information received by diversity reception using space diversity
    • 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
    • H04L5/0044—Allocation of payload; Allocation of data channels, e.g. PDSCH or PUSCH

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Quality & Reliability (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radio Transmission System (AREA)

Abstract

Técnicas para enviar eficientemente informacion sobre el estado del canal mediante la utilizacion de la codificacion diferencial. La codificacion diferencial puede ser llevada a cabo a través de espacio, a través de frecuencia, a través de espacio y frecuencia, a través de espacio, frecuencia y tiempo, o través de alguna otra combinacion de dimensiones. En un diseno, es posible determinar la informacion de estado espacial para multiples canales espaciales sobre multiples subbandas. Los canales espaciales pueden corresponder con diferentes antenas, diferentes vectores de precodificacion etc. Pueden obtenerse los valores de indicador de la calidad del canal (CQI) para los multiples canales espaciales sobre las multiples subbandas. Los valores de CQI pueden codificarse diferencialmente a través de los multiples canales espaciales y las multiples subbandas, para obtener informacion diferencial de CQI. En otro diseno, pueden obtenerse los valores de CQI para multiples canales espaciales sobre las multiples subbandas en multiples intervalos de tiempo, y se los puede codificar espacialmente a través de espacio, frecuencia y tiempo. La informacion diferencial de CQI y la informacion sobre el estado espacial pueden enviarse como retroalimentacion.
ARP070101280A 2006-03-27 2007-03-27 Retroalimentacion de informacion sobre el estado del canal para mimo, y programacion de subbandas en un sistema de comunicaciones inalambricas AR060166A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US78644506P 2006-03-27 2006-03-27

Publications (1)

Publication Number Publication Date
AR060166A1 true AR060166A1 (es) 2008-05-28

Family

ID=38420606

Family Applications (1)

Application Number Title Priority Date Filing Date
ARP070101280A AR060166A1 (es) 2006-03-27 2007-03-27 Retroalimentacion de informacion sobre el estado del canal para mimo, y programacion de subbandas en un sistema de comunicaciones inalambricas

Country Status (15)

Country Link
US (2) US8014455B2 (es)
EP (1) EP1999876B1 (es)
JP (1) JP5107998B2 (es)
KR (1) KR101008811B1 (es)
CN (1) CN101411110B (es)
AR (1) AR060166A1 (es)
AT (1) ATE484117T1 (es)
BR (1) BRPI0709079B1 (es)
CA (1) CA2646504C (es)
DE (1) DE602007009652D1 (es)
ES (1) ES2351621T3 (es)
PL (1) PL1999876T3 (es)
RU (1) RU2457621C2 (es)
TW (1) TWI362847B (es)
WO (1) WO2007112371A1 (es)

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US20070242770A1 (en) 2007-10-18
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ATE484117T1 (de) 2010-10-15
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