Method and device for performing signal transmission

A technology of signal transmission and equipment, applied in the field of wireless communication, can solve the problem of strong channel interference, and achieve the effect of avoiding mutual interference and strong interference

Active Publication Date: 2014-05-14
CHINA MOBILE GRP BEIJING
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Embodiments of the present invention provide a method and device for signal tran

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  • Method and device for performing signal transmission
  • Method and device for performing signal transmission
  • Method and device for performing signal transmission

Examples

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Example Embodiment

[0032] In the embodiment of the present invention, the APs in the WLAN coverage area are grouped, and the APs in the same group are allocated the same channel to ensure that the APs in the same group can learn the signal transmission status from each other, and the sensing area of ​​each AP completely includes The effective coverage area of ​​other APs in the same group enables APs in the same group to share the capacity of the same channel without interference, and makes it impossible for APs in different groups and allocated the same channel to know the signal transmission status of each other , And the sensing areas do not overlap, so that APs in different groups that are allocated the same channel can use the channel independently without interference.

[0033] The embodiments of the present invention will be described in further detail below in conjunction with the accompanying drawings.

[0034] The relationship between APs can be divided into six types, namely:

[0035] APs c...

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Abstract

The invention relates to the technical field of wireless communication, and particularly relates to a method and a device for performing signal transmission and aims at solving a problem of relatively high channel interference in the prior art. The method of the embodiment of the invention comprises that: all access points APs in a coverage area of a wireless local area network WLAN are grouped, wherein the APs in the same group after grouping can mutually acquire signal transmitting state, a perception area of each AP completely comprises the effective coverage area of other APs in the same group, and the APs which are arranged in different groups with the same allocated channel cannot mutually acquire the signal transmitting state and the perception areas are not overlapped. With adoption of the method and the device of the embodiment of the invention, the APs in the same group can share capacity of the same channel so that interference is avoided, the APs which are arranged in different groups with the same allocated channel cannot mutually acquire the signal transmitting state and the perception areas are not overlapped, and thus the APs of different groups respectively use the channels independently and generation of high interference is avoided.

Description

technical field [0001] The invention relates to the technical field of wireless communication, in particular to a method and equipment for signal transmission. Background technique [0002] The working frequency band of Wireless Local Area Networks (WLAN) 2.4GHz is 2.4GHz~2.4835GHz. Usually, this frequency band is divided into 13 channels, respectively 1~13. The frequencies contained in these 13 channels overlap Yes, there are only three channels that do not overlap with each other and can be used at the same time, such as the commonly used channels 1, 6, and 11. When multiple access points (Access Points, APs) are required for some ultra-large-scale WLAN coverage areas, in order to minimize signal overlap and interference between channels, adjacent APs should avoid using the same channel. In the prior art solution, the three channels are allocated as staggered as possible, and the AP uses different channels alternately, so that the signals in the overlapping area are not i...

Claims

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Application Information

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IPC IPC(8): H04W16/10H04W72/04
CPCH04W16/10H04W84/12H04W72/541
Inventor 赵伟盛凌志王文明张志敏石伟杜建凤赵新宁李智伟姜欣吴茜韩志峰
Owner CHINA MOBILE GRP BEIJING
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