BR9917298A - Método de diversidade de transmissão para um sistema de comunicação sem fio e transmissor e receptor para um sistema de comunicação sem fio - Google Patents

Método de diversidade de transmissão para um sistema de comunicação sem fio e transmissor e receptor para um sistema de comunicação sem fio

Info

Publication number
BR9917298A
BR9917298A BR9917298-4A BR9917298A BR9917298A BR 9917298 A BR9917298 A BR 9917298A BR 9917298 A BR9917298 A BR 9917298A BR 9917298 A BR9917298 A BR 9917298A
Authority
BR
Brazil
Prior art keywords
feedback
wireless communication
communication system
receiver
diversity method
Prior art date
Application number
BR9917298-4A
Other languages
English (en)
Inventor
Ari Hottinen
Risto Wichman
Original Assignee
Nokia Networks Oy
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 Nokia Networks Oy filed Critical Nokia Networks Oy
Priority to BR9917298-4A priority Critical patent/BR9917298A/pt
Publication of BR9917298A publication Critical patent/BR9917298A/pt

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
    • H04B7/0615—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
    • H04B7/0634—Antenna weights or vector/matrix coefficients
    • 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
    • H04B7/0602—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 antenna switching
    • H04B7/0608—Antenna selection according to transmission parameters
    • H04B7/061—Antenna selection according to transmission parameters using feedback from receiving side
    • 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
    • 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
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/38—TPC being performed in particular situations
    • H04W52/42—TPC being performed in particular situations in systems with time, space, frequency or polarisation diversity

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Radio Transmission System (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Telephonic Communication Services (AREA)
  • Circuits Of Receivers In General (AREA)
  • Transmitters (AREA)

Abstract

"MéTODO DE DIVERSIDADE DE TRANSMISSãO PARA UM SISTEMA DE COMUNICAçãO SEM FIO E TRANSMISSOR E RECEPTOR PARA UM SISTEMA DE COMUNICAçãO SEM FIO". A invenção é relativa a um método de diversidade de transmissão para um sistema de comunicação sem fio que compreende um elemento de transmissão e pelo menos um receptor, no qual um sinal de transmissão é transmitido a partir do elemento de transmissão para pelo menos o pelo menos um receptor de acordo com uma informação ponderada determinada em resposta a uma informação de realimentação. A informação de realimentação é derivada da resposta no pelo menos um receptor para o sinal de transmissão e é alimentada de volta utilizando sinais de realimentação multiplexados. Múltiplas constelações de quantização de sinais de realimentação e/ou subcanais de realimentação específicos de constelação podem é utilizados para teste de canal, de tal modo que a resolução e a robustez da realimentação total possa é aprimorada, ao mesmo tempo que mantém baixa capacidade de sinalização do canal de realimentação.
BR9917298-4A 1999-05-19 1999-05-19 Método de diversidade de transmissão para um sistema de comunicação sem fio e transmissor e receptor para um sistema de comunicação sem fio BR9917298A (pt)

Priority Applications (1)

Application Number Priority Date Filing Date Title
BR9917298-4A BR9917298A (pt) 1999-05-19 1999-05-19 Método de diversidade de transmissão para um sistema de comunicação sem fio e transmissor e receptor para um sistema de comunicação sem fio

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
PCT/EP1999/003440 WO2000072464A1 (en) 1999-05-19 1999-05-19 Transmit diversity method and system
BR9917298-4A BR9917298A (pt) 1999-05-19 1999-05-19 Método de diversidade de transmissão para um sistema de comunicação sem fio e transmissor e receptor para um sistema de comunicação sem fio

Publications (1)

Publication Number Publication Date
BR9917298A true BR9917298A (pt) 2002-02-19

Family

ID=8167296

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9917298-4A BR9917298A (pt) 1999-05-19 1999-05-19 Método de diversidade de transmissão para um sistema de comunicação sem fio e transmissor e receptor para um sistema de comunicação sem fio

Country Status (13)

Country Link
US (2) US6754286B2 (pt)
EP (2) EP1179230B1 (pt)
JP (3) JP3404382B2 (pt)
KR (1) KR100555986B1 (pt)
CN (2) CN1196277C (pt)
AT (1) ATE266282T1 (pt)
AU (2) AU4144799A (pt)
BR (1) BR9917298A (pt)
CA (1) CA2371384C (pt)
DE (2) DE69919037T2 (pt)
ES (2) ES2224667T3 (pt)
NO (1) NO323647B1 (pt)
WO (2) WO2000072464A1 (pt)

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