MX2009007983A - Diversidad de retardo ciclico y precodificacion para comunicacion inalambrica. - Google Patents

Diversidad de retardo ciclico y precodificacion para comunicacion inalambrica.

Info

Publication number
MX2009007983A
MX2009007983A MX2009007983A MX2009007983A MX2009007983A MX 2009007983 A MX2009007983 A MX 2009007983A MX 2009007983 A MX2009007983 A MX 2009007983A MX 2009007983 A MX2009007983 A MX 2009007983A MX 2009007983 A MX2009007983 A MX 2009007983A
Authority
MX
Mexico
Prior art keywords
delay
precoding
node
cyclic delay
delay diversity
Prior art date
Application number
MX2009007983A
Other languages
English (en)
Inventor
Durga Prasad Malladi
Xiaoxia Zhang
Byoung-Hoon Kim
Taesang Yoo
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 MX2009007983A publication Critical patent/MX2009007983A/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
    • 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
    • H04B7/0667—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 delayed versions of same signal
    • H04B7/0671—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 delayed versions of same signal using different delays between antennas
    • 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
    • H04B7/0413—MIMO systems
    • H04B7/0456—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
    • H04B7/046—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting taking physical layer constraints into account
    • H04B7/0473—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting taking physical layer constraints into account taking constraints in layer or codeword to antenna mapping into account
    • 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
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03891—Spatial equalizers
    • H04L25/03898—Spatial equalizers codebook-based design
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2626—Arrangements specific to the transmitter only
    • H04L27/2646—Arrangements specific to the transmitter only using feedback from receiver for adjusting OFDM transmission parameters, e.g. transmission timing or guard interval length
    • 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
    • H04L5/0014—Three-dimensional division
    • H04L5/0023—Time-frequency-space

Landscapes

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

Abstract

Se describen técnicas para enviar una transmisión MIMO utilizando una combinación de diversidad de retardo cíclico y precodificación; se puede soportar un conjunto de retardos (por ejemplo, retardo cero, retardo pequeño, y retardo grande) para diversidad de retardo cíclico y un conjunto de matrices de precodificación; en un diseño, un Nodo B puede seleccionar un retardo específicamente para un UE o para un conjunto de UE que reciben servicio por parte del Nodo B; en otro diseño, un UE puede evaluar diferentes combinaciones de matriz de precodificación y retardo, determinar la combinación con el mejor rendimiento, y enviar esta combinación de matriz de precodifiación y retardo al Nodo B; el Nodo B puede ejecutar la precodificación con la matriz de precodificación y después realizar el procesamiento para diversidad de retardo cíclico con base en el retardo seleccionado; alternativamente, el Nodo B puede ejecutar procesamiento para diversidad de retardo cíclico con base en el retardo seleccionado y después precodificación con la matriz de precodificación.
MX2009007983A 2007-02-06 2008-02-06 Diversidad de retardo ciclico y precodificacion para comunicacion inalambrica. MX2009007983A (es)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US88849407P 2007-02-06 2007-02-06
US12/026,360 US8780771B2 (en) 2007-02-06 2008-02-05 Cyclic delay diversity and precoding for wireless communication
PCT/US2008/053232 WO2008098092A2 (en) 2007-02-06 2008-02-06 Cyclic delay diversity and precoding for wireless communication

Publications (1)

Publication Number Publication Date
MX2009007983A true MX2009007983A (es) 2009-08-07

Family

ID=39682402

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2009007983A MX2009007983A (es) 2007-02-06 2008-02-06 Diversidad de retardo ciclico y precodificacion para comunicacion inalambrica.

Country Status (16)

Country Link
US (1) US8780771B2 (es)
EP (2) EP2115892B1 (es)
JP (1) JP5180233B2 (es)
KR (1) KR101314715B1 (es)
CN (1) CN101606331B (es)
AU (1) AU2008213682B2 (es)
BR (1) BRPI0806991A2 (es)
CA (1) CA2675254C (es)
ES (1) ES2639950T3 (es)
HK (1) HK1138685A1 (es)
HU (1) HUE036113T2 (es)
IL (1) IL199705A0 (es)
MX (1) MX2009007983A (es)
RU (1) RU2434328C2 (es)
TW (1) TWI410067B (es)
WO (1) WO2008098092A2 (es)

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