CN114531967A - 物理下行控制信道发送、接收方法和装置 - Google Patents

物理下行控制信道发送、接收方法和装置 Download PDF

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Publication number
CN114531967A
CN114531967A CN202080002357.7A CN202080002357A CN114531967A CN 114531967 A CN114531967 A CN 114531967A CN 202080002357 A CN202080002357 A CN 202080002357A CN 114531967 A CN114531967 A CN 114531967A
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CN
China
Prior art keywords
units
terminal
pdcch
different
downlink control
Prior art date
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Pending
Application number
CN202080002357.7A
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English (en)
Inventor
刘洋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Xiaomi Mobile Software Co Ltd
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Beijing Xiaomi Mobile Software Co Ltd
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Publication date
Application filed by Beijing Xiaomi Mobile Software Co Ltd filed Critical Beijing Xiaomi Mobile Software Co Ltd
Publication of CN114531967A publication Critical patent/CN114531967A/zh
Pending legal-status Critical Current

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    • 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
    • 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
    • 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
    • H04L27/2655—Synchronisation arrangements
    • H04L27/2668—Details of algorithms
    • H04L27/2673—Details of algorithms characterised by synchronisation parameters
    • H04L27/2675—Pilot or known symbols
    • 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
    • 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
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot 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
    • H04L27/2602—Signal structure

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

Abstract

本公开涉及物理下行控制信道发送方法，适用于基站，在所述基站中设置有多个发送单元，所述方法包括：通过多个发送单元向终端发送物理下行控制信道PDCCH，其中，不同所述发送单元发送的PDCCH的解调参考信号DMRS序列不同。根据本公开，即使多个发送单元中某个发送单元与终端之间的通信链路因被遮挡、深度衰落等原因而受到影响，由于多个发送单元中的其他发送单元与终端之间还存在通信链路来发送PDCCH，因此可以确保顺利地将PDCCH发送至终端，有利于提高发送PDCCH的可靠性。另外，由于不同的发送单元发送的PDCCH所经过的无线信道不同，使得终端在接收到PDCCH后，可以基于不同的DMRS序列配置分别估计相应的无线信道并进一步解调PDCCH。

Description

PCT国内申请，说明书已公开。

Claims (26)

  1. PCT国内申请，权利要求书已公开。
CN202080002357.7A 2020-09-23 2020-09-23 物理下行控制信道发送、接收方法和装置 Pending CN114531967A (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2020/117210 WO2022061608A1 (zh) 2020-09-23 2020-09-23 物理下行控制信道发送、接收方法和装置

Publications (1)

Publication Number Publication Date
CN114531967A true CN114531967A (zh) 2022-05-24

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ID=80844685

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Application Number Title Priority Date Filing Date
CN202080002357.7A Pending CN114531967A (zh) 2020-09-23 2020-09-23 物理下行控制信道发送、接收方法和装置

Country Status (3)

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US (1) US20230217455A1 (zh)
CN (1) CN114531967A (zh)
WO (1) WO2022061608A1 (zh)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110881220B (zh) * 2018-09-06 2022-09-30 大唐移动通信设备有限公司 多传输点trp数据处理的方法、基站、终端及存储介质
CN111130708B (zh) * 2018-11-07 2021-03-23 维沃移动通信有限公司 一种反馈信息传输方法和终端设备
BR112021013360A2 (pt) * 2019-01-08 2021-09-14 Beijing Xiaomi Mobile Software Co., Ltd. Métodos para enviar e para receber dados de enlace descendente, aparelhos para enviar e para receber dados de enlace descendente, e, meio de armazenamento legível por computador não transitório
US10945216B2 (en) * 2019-01-10 2021-03-09 Lenovo (Singapore) Pte. Ltd. Uplink power control

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US20230217455A1 (en) 2023-07-06
WO2022061608A1 (zh) 2022-03-31

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