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Request and response method for detecting MLD, site and access point

A technology for detecting request frames and detecting response frames, applied in the field of communications

Pending Publication Date: 2022-01-04
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although 802.11ax and previous WiFi in the same working frequency band are configured with multiple links, generally speaking, each multi-link establishes a different basic service set (BSS), and only one link can communicate with the link at a time. Site communication within the homed BSS

Method used

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  • Request and response method for detecting MLD, site and access point
  • Request and response method for detecting MLD, site and access point
  • Request and response method for detecting MLD, site and access point

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0164] See Figure 5 , Figure 5 It is a detection method based on multi-link devices and MBSSID provided by the embodiment of this application. This method can be applied between stations, between access points and stations, and between access points. For the convenience of description, the embodiment of this application takes the communication between access points and stations as an example Describe in detail. There are multiple links between the access point and the station.

[0165] First, the scenario implemented in this embodiment is introduced. In this scenario, multiple AP MLDs are included, such as the first AP MLD and the second AP MLD, where one logical AP of the first AP MLD is the first AP, which is configured as The non-transmitted BSSID, a logical AP of the second AP MLD is called the second AP, which is configured as a transmitted BSSID; the first AP and the second AP can work on the same link and belong to the same MBSSID set. In this scenario, a non-AP S...

Embodiment 2

[0178] See Figure 6 , Figure 6It is a detection method based on multi-link devices and MBSSID provided by the embodiment of this application. This method can be applied between stations, between access points and stations, and between access points. For the convenience of description, the embodiment of this application takes the communication between access points and stations as an example Describe in detail. There are multiple links between the access point and the station.

[0179] Firstly, it is introduced that the implementation scenario of this embodiment is similar to that of Embodiment 1, and will not be repeated here. The difference from Embodiment 1 is that in Embodiment 2, a non-AP STA wants to obtain communication parameters of one or more AP MLDs through the transmitted BSSID AP, so as to establish multi-links with the one or more MLDs respectively. aisle.

[0180] For the communication parameters of the AP MLD in the second embodiment, please also refer to...

Embodiment 3

[0229] The embodiment of the present application further introduces several elements used in the detection request frame to implement the AP MLD detection request. The element can carry the first indication information in the above-mentioned embodiment 1, or carry the second indication information in the above-mentioned embodiment 2. ; The third embodiment will also introduce the elements used to carry the communication parameters of the AP MLD in the probe response frame.

[0230] The detection request frame of this embodiment includes a variety of the following fields:

[0231] Table 4

[0232] serial number information 1 HT capabilities 2 VHT capabilities (VHT capabilities), this field does not exist at 6GHz 3 HE capabilities 4 EHT capabilities 5 Known BSSID (known BSSID) 6 HE 6GHz band capabilities (HE 6GHz band capabilities) 7 Short SSID list (short SSID list) 8 Requested MLD element (requested MLD element) 9...

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Abstract

The embodiment of the invention provides a detection request and response technology between a site and a plurality of AP MLDs. If the station wants to obtain the communication parameters of the non-transmission BSSID AP, a detection request frame can be sent to one non-transmission BSSID AP in the MBSSID set, and the transmission BSSID AP in the MBSSID set can be substituted to reply a detection response frame; or if the station wants to detect multiple AP MLDs at a time, the station may send a detection request frame to a transmitting BSSID AP in the MBSSID set to request the AP to reply to communication parameters of a non-transmitting BSSID AP, where the non-transmitting BSSID AP and the transmitting BSSIDAP may belong to different AP MLDs. By implementing the application, the site can obtain the communication parameters of the plurality of APs in the one or more AP MLDs by sending one detection request frame, that is, the communication parameters of the AP MLDs on the plurality of links can be obtained, so that the association between the site and the AP MLDs or the establishment of multi-link transmission between the site and the AP MLDs can be efficiently realized.

Description

technical field [0001] The present application relates to the field of communication technology, and in particular to a request and response method for detecting MLD in a wireless local area network, as well as a station and an access point. Background technique [0002] In order to greatly increase the service transmission rate of the wireless local area network (WLAN) system, the Institute of Electrical and Electronics Engineers (Institute of Electrical and Electronics Engineers, IEEE) 802.11ax standard is based on the existing Orthogonal Frequency Division Multiplexing (Orthogonal Frequency Division Multiplexing, On the basis of OFDM) technology, Orthogonal Frequency Division Multiple Access (OFDMA) technology is further adopted. OFDMA technology supports multiple nodes to transmit and receive data simultaneously, thereby achieving multi-site diversity gain. In 2017, when 802.11ax was finalized, the Federal Communications Commission (FCC) of the United States opened a ne...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W24/02H04W84/12
CPCH04W84/12H04W76/11H04W76/15H04W88/085H04W8/005H04W48/12H04W48/14H04W24/02H04L43/12
Inventor 郭宇宸淦明李云波黄国刚
Owner HUAWEI TECH CO LTD