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Method and system for scanning channel in wireless network

A channel scanning, wireless network technology, applied in the field of channel scanning in wireless networks, can solve problems such as inability to work, reduced transmission efficiency with large bandwidth, interference, etc.

Inactive Publication Date: 2012-05-16
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In the above cases, if the channels of OBSS working on different channel sets overlap or partially overlap, they will cause serious interference to each other, resulting in reduced efficiency of large-bandwidth transmission or even inability to work.

Method used

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  • Method and system for scanning channel in wireless network
  • Method and system for scanning channel in wireless network
  • Method and system for scanning channel in wireless network

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Experimental program
Comparison scheme
Effect test

Embodiment 9

[0113] In Embodiment 9 of the present invention, the method for realizing scanning in multiple channelized sets mainly includes the following operations:

[0114] Scanning in multiple channelization sets can be triggered by events, including but not limited to at least one of the following: interference detection, high-layer signaling, BSS establishment, BSS starts working on a channelization set different from the original working channelization set, etc. .

[0115] For example, an AP with a large bandwidth capability, such as a 120MHz bandwidth capability, needs to scan part or all of the basic channels on the first channelization set and / or the second channelization set before establishing a BSS, so as to ensure that the BSS to be established is in its There will be no interference to other OBSS within the maximum working bandwidth.

[0116] As another example, when the AP or non-AP station is working under the BSS to which it belongs, through the interference detection of...

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PUM

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Abstract

The invention discloses a method and a system for scanning a channel in a wireless network. The method comprises a step that: an access point (AP) and / or non-AP stations associated with the AP scan / scans the channel according to one or more of the following modes that: A, the AP performs overlapping basic service set (OBSS) channel scanning on channels in one or more different channelized sets at the same period or different periods; B, partial or all non-AP stations associated with the AP perform the OBSS channel scanning on the channels in the one or more different channelized sets at the same period or different periods; and C, the AP or partial or all non-AP stations associated with the AP is or are triggered by an event to perform one-time OBSS channel scanning on the one or more channelized sets. By the method and the system disclosed by the invention, a channel scanning process of equipment which supports a plurality of channelized sets is planned.

Description

technical field [0001] The invention relates to the field of wireless communication, in particular to a method and system for channel scanning in a wireless network. Background technique [0002] At present, in the wireless network field, a wireless local area network (WLAN, Wireless LAN) develops rapidly, and the demand for WLAN coverage is also increasing day by day. The Institute of Electrical and Electronics Engineers industry specification (IEEE802.11) group has successively defined a series of the most common WLAN technical standards such as 802.11a, 802.11b, and 802.11g; Specifications for 802.11 technical improvements, for example: the 802.11n task group proposed a high throughput (HT, High Throughput) requirement, supporting a data rate up to 600Mbps, and the 802.11ac task group further proposed a very high throughput (VHT, Very High Throughput) concept, increasing the data rate to 1Gbps. New protocols need to be backward compatible with previous protocols. [00...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W48/16
CPCH04W16/04H04W48/16H04W72/00H04W24/00H04W84/12
Inventor 吕开颖孙波李楠李峰姜静
Owner ZTE CORP