BRPI0413502A - aparelho de comunicação de rádio e método de transmissão de sìmbolo piloto - Google Patents

aparelho de comunicação de rádio e método de transmissão de sìmbolo piloto

Info

Publication number
BRPI0413502A
BRPI0413502A BRPI0413502-4A BRPI0413502A BRPI0413502A BR PI0413502 A BRPI0413502 A BR PI0413502A BR PI0413502 A BRPI0413502 A BR PI0413502A BR PI0413502 A BRPI0413502 A BR PI0413502A
Authority
BR
Brazil
Prior art keywords
pilot symbol
cells
radio communication
communication apparatus
pilot
Prior art date
Application number
BRPI0413502-4A
Other languages
English (en)
Inventor
Akihiko Nishio
Atsushi Matsumoto
Original Assignee
Matsushita Electric Ind Co Ltd
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=34137967&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=BRPI0413502(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Matsushita Electric Ind Co Ltd filed Critical Matsushita Electric Ind Co Ltd
Publication of BRPI0413502A publication Critical patent/BRPI0413502A/pt
Publication of BRPI0413502B1 publication Critical patent/BRPI0413502B1/pt

Links

Classifications

    • 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
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H04L5/0051—Allocation of pilot signals, i.e. of signals known to the receiver of dedicated pilots, i.e. pilots destined for a single user or terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/309—Measuring or estimating channel quality parameters
    • H04B17/345—Interference values
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/309—Measuring or estimating channel quality parameters
    • H04B17/364—Delay profiles
    • 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
    • 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
    • H04B7/0417—Feedback systems
    • 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
    • H04B7/0617—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 for beam forming
    • 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
    • H04L25/0224—Channel estimation using sounding signals
    • H04L25/0226—Channel estimation using sounding signals sounding signals per se
    • 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
    • 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
    • H04L27/2602—Signal structure
    • H04L27/261—Details of reference signals
    • H04L27/2613—Structure of the reference signals
    • H04L27/26134—Pilot insertion in the transmitter chain, e.g. pilot overlapping with data, insertion in time or frequency domain
    • 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
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • 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
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • 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
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0094—Indication of how sub-channels of the path are allocated
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/16—Code allocation
    • H04J13/18—Allocation of orthogonal codes

Landscapes

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

Abstract

"APARELHO DE COMUNICAçãO DE RáDIO E MéTODO DE TRANSMISSãO DE SìMBOLO PILOTO". A presente invenção refere-se a um aparelho de comunicação de rádio que permite que a influência das informações de retorno sobre a capacidade do canal seja mantida no mínimo sem reduzir a eficiência de transmissão de informações pela transmissão do símbolo piloto. No aparelho, uma seção de medição de dispersão de retardo (272) gera um perfil de retardo utilizando o sinal recebido, e mede a dispersão de retardo indicativa da dispersão de versões retardadas. Uma seção de estimativa de velocidade de movimento (274) estima a velocidade de movimento de um aparelho de estação móvel que transmite um símbolo piloto com base na variação na potência de recepção do símbolo piloto. Uma seção de medição de interferência de outras células (276) mede a interferência de outras células causada por sinais transmitidos nas células exceto a célula à qual o aparelho pertence. Correspondendo à dispersão de retardo, à velocidade de movimento e à interferência de outras células, uma seção de geração de informações padrão piloto (278) seleciona um padrão piloto de modo que a colocação do símbolo piloto seja ótima em um quadro, e gere as informações padrão piloto.
BRPI0413502-4A 2003-08-12 2004-08-11 aparelho de comunicação de rádio e método de transmissão de símbolo piloto BRPI0413502B1 (pt)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JP2003292667 2003-08-12
JP2003-292667 2003-08-12
JP2004-162388 2004-05-31
JP2004162388 2004-05-31
PCT/JP2004/011556 WO2005015797A1 (ja) 2003-08-12 2004-08-11 無線通信装置およびパイロットシンボル伝送方法

Publications (2)

Publication Number Publication Date
BRPI0413502A true BRPI0413502A (pt) 2006-10-10
BRPI0413502B1 BRPI0413502B1 (pt) 2020-12-01

Family

ID=34137967

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0413502-4A BRPI0413502B1 (pt) 2003-08-12 2004-08-11 aparelho de comunicação de rádio e método de transmissão de símbolo piloto

Country Status (8)

Country Link
US (3) US8843142B2 (pt)
EP (4) EP3429119B1 (pt)
JP (5) JP4427027B2 (pt)
KR (5) KR101160136B1 (pt)
CN (2) CN105577344B (pt)
BR (1) BRPI0413502B1 (pt)
RU (1) RU2349043C2 (pt)
WO (1) WO2005015797A1 (pt)

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