BR9916239A - Método e sistema de rádio de transmitir um sinal digital - Google Patents

Método e sistema de rádio de transmitir um sinal digital

Info

Publication number
BR9916239A
BR9916239A BR9916239-3A BR9916239A BR9916239A BR 9916239 A BR9916239 A BR 9916239A BR 9916239 A BR9916239 A BR 9916239A BR 9916239 A BR9916239 A BR 9916239A
Authority
BR
Brazil
Prior art keywords
transmitting
transmitter
signaling
coefficient data
weighting
Prior art date
Application number
BR9916239-3A
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
Publication of BR9916239A publication Critical patent/BR9916239A/pt

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/04—Transmission power control [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
    • 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
    • H04B7/0613—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
    • H04B7/0652—Feedback error handling
    • H04B7/0656—Feedback error handling at the transmitter, e.g. error detection at base station
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/04—Transmission power control [TPC]
    • H04W52/54—Signalisation aspects of the TPC commands, e.g. frame structure

Landscapes

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

Abstract

"MéTODO E SISTEMA DE RáDIO DE TRANSMITIR UM SINAL DIGITAL" A invenção se refere a um método e um sistema de rádio para transmitir um sinal digital. O método compreende as seguintes etapas: (300) transmitir pelo transmissor pelo menos uma parte do sinal através de pelo menos duas trajetórias de antena transmissora diferentes; (302) ponderar pelo transmissor a potência de transmissão dos sinais a serem transmitidos através das trajetórias de antena transmissora diferentes, um em relação ao outro, por intermédio de coeficientes de ponderação variáveis determinados para cada trajetória de antena transmissora; (304) receber o sinal pelo receptor. Numa realização, (306) o receptor executa medições nos sinais recebidos que foram transmitidos através das diferentes trajetórias de antena transmissora; (308) o receptor sinaliza para o transmissor dos dados de coeficiente de ponderação formados em função das medições; (312A) o transmissor forma coeficientes de ponderação por intermédio da sinalização de dados de coeficiente de ponderação. Numa outra realização, (310) o transmissor forma um valor de qualidade para a sinalização de dados de coeficiente de ponderação que recebeu; (312B) o transmissor forma coeficientes de ponderação por intermédio do valor de qualidade da sinalização de dados de coeficiente de ponderação e da própria sinalização.
BR9916239-3A 1998-12-15 1999-12-15 Método e sistema de rádio de transmitir um sinal digital BR9916239A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI982715A FI108588B (fi) 1998-12-15 1998-12-15 Menetelmä ja radiojärjestelmä digitaalisen signaalin siirtoon
PCT/FI1999/001037 WO2000036764A2 (en) 1998-12-15 1999-12-15 Method and radio system for digital signal transmission

Publications (1)

Publication Number Publication Date
BR9916239A true BR9916239A (pt) 2001-09-04

Family

ID=8553121

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9916239-3A BR9916239A (pt) 1998-12-15 1999-12-15 Método e sistema de rádio de transmitir um sinal digital

Country Status (8)

Country Link
US (1) US7236537B2 (pt)
EP (1) EP1131903A2 (pt)
JP (1) JP2002533010A (pt)
CN (1) CN1330816A (pt)
AU (1) AU1984700A (pt)
BR (1) BR9916239A (pt)
FI (1) FI108588B (pt)
WO (1) WO2000036764A2 (pt)

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Also Published As

Publication number Publication date
AU1984700A (en) 2000-07-03
US20020012380A1 (en) 2002-01-31
FI982715A0 (fi) 1998-12-15
JP2002533010A (ja) 2002-10-02
WO2000036764A3 (en) 2000-08-03
FI108588B (fi) 2002-02-15
EP1131903A2 (en) 2001-09-12
FI982715L (fi) 2000-06-16
WO2000036764A2 (en) 2000-06-22
CN1330816A (zh) 2002-01-09
US7236537B2 (en) 2007-06-26

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Legal Events

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B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]

Free format text: REFERENTE A 4O, 5O, 6O E 7O ANUIDADES.

B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: REFERENTE AO DESPACHO 8.6 PUBLICADO NA RPI 1913 DE 04/09/2007.