Method for preventing hidden node from appearing in wireless local area network and first station

A wireless local area network and hidden terminal technology, which is applied in the field of avoiding hidden terminals, can solve problems such as signal collisions and affect system throughput, and achieve the effects of avoiding signal collisions, reducing the probability of interference, and improving the performance of the entire network

Active Publication Date: 2017-12-08
HONOR DEVICE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Especially in densely populated scenarios, the probability of hidden terminal problems during the communication process of sites with directional working methods is greatly increased, and the probability of signal collision between hidden terminals and communicating sites is also greatly increased, which seriously affects system throughput. Rate

Method used

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  • Method for preventing hidden node from appearing in wireless local area network and first station
  • Method for preventing hidden node from appearing in wireless local area network and first station
  • Method for preventing hidden node from appearing in wireless local area network and first station

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Embodiment 1

[0065] like figure 2 As shown, the embodiment of the present invention provides a method for avoiding hidden terminals in a wireless local area network, including:

[0066] S201. The first station generates a first frame carrying a first time.

[0067] S202. The first station sends the first frame carrying the first time to the second station by using a quasi-omnidirectional antenna pattern.

[0068] The first frame is used to indicate that the third station that has heard the first frame is in a silent state within the first time. The quasi-omnidirectional antenna mode refers to the default receiving mode and transmitting mode between the sites when beamforming training is not performed between the first site and the second site with a directional working mode.

[0069] The third station that has heard the first frame sets its own Network Allocation Vector (NAV) information to the first time, so that the third station is in a silent state for the first time, preventing the...

Embodiment 2

[0095] Based on the first embodiment above, the embodiment of the present invention also provides a first site, which can adopt figure 2 For the method provided by the corresponding embodiment, refer to Figure 5 As shown, the first station 500 includes: a processing unit 501 and a sending unit 502 . Optionally, the first station 500 further includes a receiving unit 503 .

[0096] A processing unit 501, configured to generate a first frame carrying a first time;

[0097] The sending unit 502 is configured to use a quasi-omnidirectional antenna pattern to send the first frame carrying the first time generated by the processing unit 501 to the second station;

[0098] Among them, the first station 500 is a station that uses a directional antenna mode to transmit a request to send an RTS frame and a station that is allowed to send a CTS frame with the second station; the directional antenna mode means that the first station 500 and the second station have undergone beamformin...

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Abstract

The invention discloses a method for preventing a hidden node from appearing and a first station. The hidden node is prevented from appearing around the first station and the second station in communication, and then the hidden node is prevented from occurring signal collision with the first station and the second station in process of communication. The method comprises the following steps: the first station generates a first frame carrying the first time; the first station sends the first frame with the first time to the second station by using a quasi-omnidirectional antenna mode, wherein the station is the station for transmitting the request to send RTS frame and a clear to send CTS frame between the first station and the seconds station by using the directional antenna mode; the directional antenna mode is the antenna mode selected by the first station and the second station through the beamforming training; and the first frame is used for indicating the third station intercepting the first frame to locate in the silence state in the first time.

Description

technical field [0001] The invention relates to the field of wireless communication, in particular to a method for avoiding hidden terminals in a wireless local area network and a first station. Background technique [0002] In a Wireless Fidelity (WiFi) system, the initiating station (Station) of the communication grabs the channel and sends a Request To Send (RTS) frame to the target station of the communication, and the target station replies to the initiating station to allow sending ( Clear To Send (CTS) frame to set the originating station and other stations around the target station to be in a silent state for a set time, thereby avoiding that other stations send data during the communication process between the initiating station and the target station, causing other stations to communicate with the initiating station Signal collision with the target site affects the system throughput. [0003] Considering that the working frequency band of some stations will cause ...

Claims

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Application Information

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IPC IPC(8): H04W8/00H04W16/18H04W16/28H04W84/12
CPCH04W8/005H04W16/18H04W16/28H04W84/12
Inventor 吴霁林英沛吴涛
Owner HONOR DEVICE CO LTD
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