CN114846833A - Wi-Fi信道测量方法、装置和*** - Google Patents

Wi-Fi信道测量方法、装置和*** Download PDF

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Publication number
CN114846833A
CN114846833A CN201980103269.3A CN201980103269A CN114846833A CN 114846833 A CN114846833 A CN 114846833A CN 201980103269 A CN201980103269 A CN 201980103269A CN 114846833 A CN114846833 A CN 114846833A
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China
Prior art keywords
sta
trigger frame
uplink
cqi
uplink channel
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Pending
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CN201980103269.3A
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English (en)
Inventor
李帅
李振宇
吴毅凌
胡磊
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Publication of CN114846833A publication Critical patent/CN114846833A/zh
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    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements

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

Abstract

本申请实施例提供一种Wi‑Fi信道测量方法。在该方法中，接入点AP向终端STA发送触发帧trigger frame，向STA指示上行信道测量；AP从STA接收空数据包通知NDPA；其中，NDPA用于指示与上行信道测量相关的部分带宽信息partial BW Info、反馈类型和子载波分组feedback type and Ng、码本大小codebook size、和列数Nc；AP通过对来自STA的、与该NDPA对应的空数据包NDP的导频进行测量获取上行信道权值；其中，该上行信道权值用于上行MIMO；该AP向STA发送上述上行信道权值。通过上述方法，上行信道权值的测量可以由AP触发，即可在数据传输前驱动STA进行上行权值测量，利于STA在上行MIMO时提升上行MIMO的容量。

Description

PCT国内申请，说明书已公开。

Claims (32)

  1. PCT国内申请，权利要求书已公开。
CN201980103269.3A 2019-12-31 2019-12-31 Wi-Fi信道测量方法、装置和*** Pending CN114846833A (zh)

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PCT/CN2019/130772 WO2021134593A1 (zh) 2019-12-31 2019-12-31 Wi-Fi信道测量方法、装置和***

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CN114846833A true CN114846833A (zh) 2022-08-02

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WO (1) WO2021134593A1 (zh)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115734269A (zh) * 2021-08-25 2023-03-03 英特尔公司 7GHz以下频段IEEE 802.11bf非基于触发(TB)的感知测量流

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CN105519025B (zh) * 2014-12-22 2019-08-06 华为技术有限公司 一种cqi上报方法、触发方法、设备及无线通信***
US10826588B2 (en) * 2015-04-16 2020-11-03 Lg Electronics Inc. Channel sounding method in wireless communication system, and apparatus therefor
CN106454930A (zh) * 2015-08-07 2017-02-22 中兴通讯股份有限公司 信道探测报告传输方法及装置
WO2017030295A1 (ko) * 2015-08-19 2017-02-23 엘지전자(주) 무선 통신 시스템에서 채널 상태의 피드백 방법 및 이를 위한 장치
DE112016005032B4 (de) * 2015-11-03 2023-01-26 Intel Corporation Aufwärtsstrecken- und Abwärtsstreckensondierung für drahtlose Netze
CN107027145B (zh) * 2016-02-01 2021-01-01 华为技术有限公司 信道测量方法及装置
US10104635B2 (en) * 2016-02-28 2018-10-16 Qualcomm Incorporated Unicast and broadcast protocol for wireless local area network ranging and direction finding
WO2018187145A1 (en) * 2017-04-05 2018-10-11 Intel IP Corporation Apparatus, system and method of multi user (mu) ranging measurement with uplink (ul) sounding groups
US10492165B2 (en) * 2017-11-09 2019-11-26 Intel IP Corporation Enhanced collaborating timing measurements for wireless communications

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