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Method, access point and station for channel contention

An access point and channel technology, applied in the field of channel competition, can solve problems such as reducing system efficiency and increasing system overhead

Active Publication Date: 2019-09-20
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to protect the transmission between the AP and multiple STAs, the AP can send RTS to multiple STAs in turn, and each STA responds to CTS in turn, but this requires multiple sets of RTS / CTS interactions, which greatly increases the additional overhead of the system and reduces the system cost. efficiency

Method used

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  • Method, access point and station for channel contention
  • Method, access point and station for channel contention
  • Method, access point and station for channel contention

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Embodiment Construction

[0082] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, 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 shall fall within the protection scope of the present invention.

[0083] figure 1 is a scene graph to which the embodiment of the present invention can be applied. Such as figure 1 As shown, multiple STAs (STA111-STA115) are located under the coverage of AP 110, and AP 110 and multiple STAs form a Basic Service Set (BSS), where some STAs may be located under the coverage of other APs at the same time For example, STA 114 is also located under the coverage of AP 120 , and STA 115 is also located under the coverage of AP 130 . ...

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Abstract

The invention discloses a channel competition method, access point and station. The method includes: the AP sends an RTS frame, the RTS frame carries group response indication information, and the group response indication information is used to instruct multiple STAs to respond to the CTS frame; the AP receives the STA that receives the RTS frame among the multiple STAs according to the The CTS frame of the group response indication information response; the AP determines the transmission opportunity based on the received CTS frame. The channel competition method, access point and station of the embodiments of the present invention can effectively protect data transmission between the AP and multiple STAs with relatively small overhead, thereby improving system efficiency.

Description

technical field [0001] The present invention relates to the field of communication, and more particularly, to a channel contention method, access point and station. Background technique [0002] A wireless local area network (Wireless Local Area Networks, WLAN) system works on an unlicensed spectrum, and there may be spectrum shared by users on a channel. If multiple users send data at the same time, they may interfere with each other and cause conflicts. Therefore, a Carrier Sense Multiple Access with Collision Avoidance (CSMA / CA) mechanism is adopted in the WLAN system to avoid collisions. In an existing WLAN system, data packets are sent in a CSMA / CA manner. Carrier sense (Carrier Sense, CS) means that any device connected to the medium must sense the medium before sending a frame, and can only send when it is confirmed to be idle. Multiple access (Multiple Access, MA) means that multiple devices can access the medium at the same time, and a frame sent by one device ca...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W74/08
CPCH04W72/121H04W84/12H04W88/08H04W74/0816
Inventor 伍天宇罗毅
Owner HUAWEI TECH CO LTD
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