BR112018068505A2 - ajuste de potência de enlace descendente em comunicações sem fio de banda estreita - Google Patents

ajuste de potência de enlace descendente em comunicações sem fio de banda estreita

Info

Publication number
BR112018068505A2
BR112018068505A2 BR112018068505A BR112018068505A BR112018068505A2 BR 112018068505 A2 BR112018068505 A2 BR 112018068505A2 BR 112018068505 A BR112018068505 A BR 112018068505A BR 112018068505 A BR112018068505 A BR 112018068505A BR 112018068505 A2 BR112018068505 A2 BR 112018068505A2
Authority
BR
Brazil
Prior art keywords
epre
identify
ratio
crs
transmitted
Prior art date
Application number
BR112018068505A
Other languages
English (en)
Inventor
Rico Alvarino Alberto
Xu Hao
Gaal Peter
Wang Renqiu
Ali Akbar Fakoorian Seyed
Chen Wanshi
Feng Wang Xiao
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 BR112018068505A2 publication Critical patent/BR112018068505A2/pt

Links

Classifications

    • 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
    • H04W52/06—TPC algorithms
    • H04W52/14—Separate analysis of uplink or downlink
    • H04W52/143—Downlink power control
    • 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
    • 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
    • H04L27/2647—Arrangements specific to the receiver only
    • H04L27/2649—Demodulators
    • 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
    • H04L5/003—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
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/70—Services for machine-to-machine communication [M2M] or machine type communication [MTC]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • 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
    • H04W52/30—TPC using constraints in the total amount of available transmission power
    • H04W52/32—TPC of broadcast or control channels
    • H04W52/325—Power control of control or pilot channels
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/90—Services for handling of emergency or hazardous situations, e.g. earthquake and tsunami warning systems [ETWS]

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Power Engineering (AREA)
  • Computer Security & Cryptography (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

trata-se de um dispositivo, como uma estação-base ou equipamento de usuário (ue), que pode identificar uma energia de sinal de referência de banda estreita (nb-rs) por elemento de recurso (epre) para um nb-rs a ser transmitido em uma transmissão sem fio. o dispositivo pode identificar uma razão entre um canal compartilhado de enlace descendente físico de banda estreita (n-pdsch) epre e o nb-rs epre para símbolos de multiplexação por divisão de frequência ortogonal (ofdm) que não contêm nem um sinal de referência de célula específica (crs) nem um nb-rs. em implantações em que as transmissões de nb são transmitidas em uma banda de guarda adjacente a uma largura de banda de sistema de banda ampla, um dispositivo pode identificar uma segunda razão entre n-pdsch epre e crs epre dentro dos símbolos de ofdm que contêm crs. em implantações em que as transmissões de nb são transmitidas em banda com a largura de banda de sistema de banda ampla, um dispositivo pode identificar uma terceira razão entre nb-rs epre e crs epre, e uma quarta razão entre n-pdsch epre e nb-rs epre dentro dos símbolos de ofdm que contêm transmissões de nb-rs.
BR112018068505A 2016-03-15 2017-03-03 ajuste de potência de enlace descendente em comunicações sem fio de banda estreita BR112018068505A2 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201662308581P 2016-03-15 2016-03-15
US15/447,914 US11057837B2 (en) 2016-03-15 2017-03-02 Downlink power adjustment in narrowband wireless communications
PCT/US2017/020776 WO2017160513A1 (en) 2016-03-15 2017-03-03 Downlink power adjustment in narrowband wireless communications

Publications (1)

Publication Number Publication Date
BR112018068505A2 true BR112018068505A2 (pt) 2019-01-22

Family

ID=58361110

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112018068505A BR112018068505A2 (pt) 2016-03-15 2017-03-03 ajuste de potência de enlace descendente em comunicações sem fio de banda estreita

Country Status (9)

Country Link
US (1) US11057837B2 (pt)
EP (1) EP3430760B1 (pt)
JP (1) JP6961606B2 (pt)
KR (1) KR102319217B1 (pt)
CN (1) CN108781153B (pt)
BR (1) BR112018068505A2 (pt)
ES (1) ES2893325T3 (pt)
RU (1) RU2733210C2 (pt)
WO (1) WO2017160513A1 (pt)

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US11218350B2 (en) * 2017-10-09 2022-01-04 Qualcomm Incorporated Downlink demodulation reference signal sharing for short transmission time intervals
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CN111224698B (zh) * 2018-11-23 2021-03-26 上海朗帛通信技术有限公司 一种被用于无线通信的用户设备、基站中的方法和装置
CN113615280B (zh) * 2019-03-30 2024-04-09 华为技术有限公司 功率控制方法及相关装置
CN112153738A (zh) * 2019-06-26 2020-12-29 中国移动通信有限公司研究院 一种配置方法、装置、网络侧设备及计算机可读存储介质
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Also Published As

Publication number Publication date
US20170273026A1 (en) 2017-09-21
JP6961606B2 (ja) 2021-11-05
RU2733210C2 (ru) 2020-09-30
CN108781153A (zh) 2018-11-09
US11057837B2 (en) 2021-07-06
RU2018132449A (ru) 2020-04-15
KR102319217B1 (ko) 2021-10-28
CN108781153B (zh) 2021-10-01
EP3430760B1 (en) 2021-09-01
WO2017160513A1 (en) 2017-09-21
EP3430760A1 (en) 2019-01-23
JP2019510414A (ja) 2019-04-11
ES2893325T3 (es) 2022-02-08
RU2018132449A3 (pt) 2020-07-23
KR20180124044A (ko) 2018-11-20

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Legal Events

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B350 Update of information on the portal [chapter 15.35 patent gazette]
B06W Patent application suspended after preliminary examination (for patents with searches from other patent authorities) chapter 6.23 patent gazette]