BR112018071566A2 - aperfeiçoamento de desempenho de canal de doppler elevado - Google Patents

aperfeiçoamento de desempenho de canal de doppler elevado

Info

Publication number
BR112018071566A2
BR112018071566A2 BR112018071566A BR112018071566A BR112018071566A2 BR 112018071566 A2 BR112018071566 A2 BR 112018071566A2 BR 112018071566 A BR112018071566 A BR 112018071566A BR 112018071566 A BR112018071566 A BR 112018071566A BR 112018071566 A2 BR112018071566 A2 BR 112018071566A2
Authority
BR
Brazil
Prior art keywords
base station
density
doppler
performance enhancement
channel performance
Prior art date
Application number
BR112018071566A
Other languages
English (en)
Inventor
Sun Jing
Yoo Taesang
Luo Tao
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 BR112018071566A2 publication Critical patent/BR112018071566A2/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
    • 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
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L23/00—Apparatus or local circuits for systems other than those covered by groups H04L15/00 - H04L21/00
    • 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
    • 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
    • H04L5/0096—Indication of changes in allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/08—Testing, supervising or monitoring using real traffic
    • 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
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1829—Arrangements specially adapted for the receiver end
    • H04L1/1854—Scheduling and prioritising arrangements
    • 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
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1867—Arrangements specially adapted for the transmitter end
    • H04L1/1896—ARQ related signaling
    • 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
    • H04L25/0228—Channel estimation using sounding signals with direct estimation from sounding signals
    • H04L25/023—Channel estimation using sounding signals with direct estimation from sounding signals with extension to other symbols

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Networks Using Active Elements (AREA)

Abstract

estação base pode determinar uma métrica de doppler associada com um canal sem fio e um equipamento de usuário (ue). a métrica de doppler pode ser determinada a partir de informações recebidas relacionadas aos efeitos de doppler medidos pelo ue ou a partir de efeitos de doppler medidos diretamente associados aos dados de uplink recebidos a partir do ue. com base na métrica de doppler determinada, a estação base pode selecionar uma ou ambas de uma densidade sinal de referência (rs) e uma técnica de estimativa de canal para o canal sem fio e ue associado. a estação base pode transmitir uma indicação da densidade de rs para o ue. as rajadas de dados no downlink e as rajadas de dados de uplink podem incluir rss e dados de acordo com a densidade de rs indicada. além disso, a estação base pode transmitir para o ue, uma indicação para se comunicar utilizando a técnica de estimativa de canal sem fio, selecionada.
BR112018071566A 2016-04-21 2017-03-17 aperfeiçoamento de desempenho de canal de doppler elevado BR112018071566A2 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201662325946P 2016-04-21 2016-04-21
US15/461,368 US10708796B2 (en) 2016-04-21 2017-03-16 High doppler channel performance enhancement
PCT/US2017/023044 WO2017184278A1 (en) 2016-04-21 2017-03-17 High doppler channel performance enhancement

Publications (1)

Publication Number Publication Date
BR112018071566A2 true BR112018071566A2 (pt) 2019-02-12

Family

ID=60089897

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112018071566A BR112018071566A2 (pt) 2016-04-21 2017-03-17 aperfeiçoamento de desempenho de canal de doppler elevado

Country Status (8)

Country Link
US (2) US10708796B2 (pt)
EP (1) EP3446408B1 (pt)
CN (2) CN113328844B (pt)
AU (1) AU2017254079B2 (pt)
BR (1) BR112018071566A2 (pt)
CA (2) CA3216850A1 (pt)
SG (2) SG11201807613UA (pt)
WO (1) WO2017184278A1 (pt)

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WO2021090460A1 (ja) * 2019-11-07 2021-05-14 株式会社Ｎｔｔドコモ 端末及び通信方法
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Also Published As

Publication number Publication date
CN113328844A (zh) 2021-08-31
WO2017184278A1 (en) 2017-10-26
US10708796B2 (en) 2020-07-07
CN109075832A (zh) 2018-12-21
US20200322824A1 (en) 2020-10-08
CA3017364C (en) 2024-01-16
EP3446408B1 (en) 2020-12-02
EP3446408A1 (en) 2019-02-27
SG11201807613UA (en) 2018-11-29
SG10202010284UA (en) 2020-11-27
CN109075832B (zh) 2021-05-28
CN113328844B (zh) 2024-03-22
AU2017254079B2 (en) 2021-07-29
AU2017254079A1 (en) 2018-09-27
CA3216850A1 (en) 2017-10-26
US20170311188A1 (en) 2017-10-26
CA3017364A1 (en) 2017-10-26

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Legal Events

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B06W Patent application suspended after preliminary examination (for patents with searches from other patent authorities) chapter 6.23 patent gazette]