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A data communication method and device

A technology for data communication and competition for channels, which is applied in the field of wireless networks to achieve the effect of realizing spatial multiplexing and improving resource utilization.

Active Publication Date: 2021-12-21
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Embodiments of the present invention provide a data communication method and device, which can solve the problem of data transmission collisions during space reuse between different BSSs, and improve resource utilization

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  • A data communication method and device

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Embodiment Construction

[0022]The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0023] The embodiment of the present invention can be applied to a Wireless Local Area Network (WLAN), and currently WLAN adopts IEEE (English: Institute of Electrical and Electronics Engineers, Chinese: Institute of Electrical and Electronics Engineers) 802.11 series. In order to achieve long-distance transmission in 802.11ah, multi-hop relay transmission is introduced. The relay station (relay) logically implements two functions, namely, a relay-stati...

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Abstract

The embodiment of the present invention discloses a data communication method and device. The data communication method includes: when a network node receives a PPDU, acquiring a BSS identifier in the PPDU; if the BSS identifier in the PPDU is different from the first BSS identifier, And the BSS identifier in the PPDU is the same as the second BSS identifier, and it is judged whether the PPDU meets the preset spatial multiplexing condition; the first BSS identifier is the identifier of the first BSS to which the network node belongs, and the second BSS identifier is the extended BSS to which the target relay belongs , the target relay and the network node belong to the first BSS; if the PPDU satisfies the preset spatial multiplexing condition, compete for the access channel, and communicate with the stations in the first BSS except the target relay. By adopting the embodiment of the present invention, the problem of data transmission collision during space reuse between different BSSs can be solved.

Description

technical field [0001] The invention relates to the technical field of wireless networks, in particular to a data communication method and device. Background technique [0002] One of the goals of the next-generation IoT wireless fidelity (wifi) protocol is long-distance transmission. In order to achieve long-distance transmission, 802.11ah introduces multi-hop relay transmission, in which the relay logically implements two functions , are respectively a relay-station (relay station, relay-STA) function and a relay-access point (relay accesspoint, relay-AP) function. Usually, when the relay relay communicates with the associated upper-layer AP, it acts as a non-access type station, which is to act as a relay-STA; when the station managed by the relay communicates with the relay, the relay acts as an access type station. , which acts as a relay-AP. Each relay relay and the site it manages are called a Basic Service Set (BSS), and each relay relay and its associated upper-la...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W74/08
CPCH04W74/08H04W74/0808H04W84/12H04W72/0446H04W76/11H04W88/08
Inventor 淦明于健杨讯
Owner HUAWEI TECH CO LTD
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