BR112017017154A2 - aperfeiçoamento dmrs para mu-mimo de ordem mais elevada - Google Patents

aperfeiçoamento dmrs para mu-mimo de ordem mais elevada

Info

Publication number
BR112017017154A2
BR112017017154A2 BR112017017154A BR112017017154A BR112017017154A2 BR 112017017154 A2 BR112017017154 A2 BR 112017017154A2 BR 112017017154 A BR112017017154 A BR 112017017154A BR 112017017154 A BR112017017154 A BR 112017017154A BR 112017017154 A2 BR112017017154 A2 BR 112017017154A2
Authority
BR
Brazil
Prior art keywords
dmrs
mimo
layers
ports
reference signal
Prior art date
Application number
BR112017017154A
Other languages
English (en)
Inventor
Wei Chao
Li Guodong
Hou Jilei
Gaal Peter
Chen Wanshi
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 BR112017017154A2 publication Critical patent/BR112017017154A2/pt

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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
    • H04L5/005—Allocation of pilot signals, i.e. of signals known to the receiver of common pilots, i.e. pilots destined for multiple users or terminals
    • 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
    • H04B7/0452—Multi-user 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
    • H04B7/0456—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
    • 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
    • H04B7/0697—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 spatial multiplexing
    • 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
    • H04L25/024—Channel estimation channel estimation algorithms
    • H04L25/0242—Channel estimation channel estimation algorithms using matrix methods
    • 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
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0014—Three-dimensional division
    • H04L5/0016—Time-frequency-code
    • 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
    • H04L5/0016—Time-frequency-code
    • H04L5/0021—Time-frequency-code in which codes are applied as a frequency-domain sequences, e.g. MC-CDMA
    • 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
    • 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
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal

Landscapes

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

Abstract

certos aspectos da presente revelação suportam aperfeiçoamento de sinal de referência de demodulação (dmrs) para comunicações de múltiplas entradas-múltiplas saídas de múltiplos usuários (mu-mimo) de ordem mais elevada. um método de exemplo inclui em geral determinar uma pluralidade de portas de um conjunto multidimensional de antenas de transmissão e um número de camadas multiplexadas espaciais para transmissão para uma pluralidade de equipamentos de usuário (ues), configurar um padrão de sinal de referência de demodulação (dmrs) por multiplexar as camadas ou as portas no padrão dmrs, usar um código de cobertura ortogonal (occ) e um ou mais grupos de multiplexagem por divisão de código (cdm) e transmitir símbolos dmrs com base no padrão dmrs configurado usando as camadas multiplexadas e as portas.
BR112017017154A 2015-02-10 2016-02-09 aperfeiçoamento dmrs para mu-mimo de ordem mais elevada BR112017017154A2 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
PCT/CN2015/072636 WO2016127309A1 (en) 2015-02-10 2015-02-10 Dmrs enhancement for higher order mu-mimo
PCT/CN2016/073736 WO2016127939A1 (en) 2015-02-10 2016-02-09 Dmrs enhancement for higher order mu-mimo

Publications (1)

Publication Number Publication Date
BR112017017154A2 true BR112017017154A2 (pt) 2018-04-03

Family

ID=56614982

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112017017154A BR112017017154A2 (pt) 2015-02-10 2016-02-09 aperfeiçoamento dmrs para mu-mimo de ordem mais elevada

Country Status (7)

Country Link
US (1) US11677448B2 (pt)
EP (1) EP3257210A4 (pt)
JP (1) JP6755875B2 (pt)
KR (1) KR20170117051A (pt)
CN (1) CN107431682B (pt)
BR (1) BR112017017154A2 (pt)
WO (2) WO2016127309A1 (pt)

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CN107431682B (zh) 2021-06-11
KR20170117051A (ko) 2017-10-20
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CN107431682A (zh) 2017-12-01
WO2016127309A1 (en) 2016-08-18

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