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Downlink multi-user data transmission method and device, storage medium and terminal

A data transmission method and data transmission technology, applied in storage media, downlink multi-user data transmission method and device, and terminal fields, can solve the problem of affecting the transmission efficiency of downlink multi-user data transmission, reducing the use probability of downlink multi-user transmission, and affecting Wi- Fi performance and other issues to achieve the effect of reducing the probability of channel parameter expiration, improving the success rate, and increasing the probability of use

Active Publication Date: 2020-06-16
SPREADTRUM COMM (SHANGHAI) CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, there are many defects in the existing processing mechanism for downlink multi-user data transmission. It is very likely that such a situation will occur: the interval between downlink multi-user data transmission and NDP-based channel detection process is too long, resulting in the execution of NDP-based channel detection. The channel parameters obtained during the process expire and become invalid, which reduces the probability of using downlink multi-user transmission, seriously affects the transmission efficiency of downlink multi-user data transmission, and then affects Wi-Fi performance

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  • Downlink multi-user data transmission method and device, storage medium and terminal
  • Downlink multi-user data transmission method and device, storage medium and terminal
  • Downlink multi-user data transmission method and device, storage medium and terminal

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Embodiment Construction

[0030] As mentioned in the background technology, since the NDP-based channel detection process between the AP and multiple STAs is a relatively time-consuming process, and when the AP executes the existing processing mechanism for downlink multi-user data transmission, it is very likely that Such a situation: the interval between the downlink multi-user data transmission and the NDP-based channel detection process is too long, causing the channel parameters obtained during the NDP-based channel detection process to expire and become invalid, reducing the use probability of downlink multi-user transmission and seriously affecting the downlink The transmission efficiency of multi-user data transmission, which in turn affects Wi-Fi performance.

[0031] Specifically, the existing processing mechanisms for downlink multi-user data transmission mainly include the following two types:

[0032] One is a scheme in which APs compete for channels based on the traditional Enhanced Distr...

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Abstract

The invention discloses a downlink multi-user data transmission method and device, a storage medium and a terminal, and the method comprises the steps: responding to the successful channel competition, and executing a channel detection process based on NDP; and determining whether to start the downlink multi-user data transmission or not according to preset TxOP duration or according to the busy and idle states of the channel in a first time period after the channel detection process is ended. Through the scheme provided by the invention, the use probability of downlink multi-user transmissioncan be improved, and the success rate of downlink multi-user data transmission is improved, so that the downlink multi-user transmission efficiency is improved, and the effect of improving the Wi-Fiperformance is achieved.

Description

technical field [0001] The present invention relates to the field of communication technologies, and in particular to a downlink multi-user data transmission method and device, a storage medium, and a terminal. Background technique [0002] In the Wireless-Fidelity (Wi-Fi) 802.11ac Very High Throughput (VHT) standard protocol, downlink multiple user transmission (Downlink Multiple User- Multiple Input Multiple Output, referred to as DL MU-MIMO) technology. Specifically, this technology can allocate data transmission for different users to different spatial streams based on MIMO, so as to realize simultaneous transmission of multiple users and improve Wi-Fi performance. [0003] In order to realize DL MU-MIMO (hereinafter referred to as downlink multi-user data transmission), it is necessary for an access point (Access Point, referred to as AP) and multiple mobile stations (Station, referred to as STA, also referred to as a station) to perform NDP-based channel Sounding pro...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W24/08H04W74/08
CPCH04W74/08H04W24/08H04B7/0452H04W74/0816H04W74/0808
Inventor 徐彦超余慶華赵育仁
Owner SPREADTRUM COMM (SHANGHAI) CO LTD