WLAN high-density user coverage method and system thereof under open environment, and centralized controller

A centralized controller and high-density technology, applied in transmission systems, digital transmission systems, data exchange through path configuration, etc., can solve problems such as large interference domain, co-frequency AP interference, channel quality degradation, etc., to reduce co-frequency Effects of jamming, reduced coverage, and improved overall efficiency

A centralized controller and high-density technology, applied in transmission systems, digital transmission systems, data exchange through path configuration, etc., can solve problems such as large interference domain, co-frequency AP interference, channel quality degradation, etc., to reduce co-frequency Effects of jamming, reduced coverage, and improved overall efficiency

CN101714935AActive Publication Date: 2010-05-26CHINA MOBILE COMM GRP CO LTD
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  • WLAN high-density user coverage method and system thereof under open environment, and centralized controller
  • WLAN high-density user coverage method and system thereof under open environment, and centralized controller
  • WLAN high-density user coverage method and system thereof under open environment, and centralized controller

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Embodiment Construction

[0017] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0018] Such as figure 1 As shown, the WLAN high-density user coverage system in an open environment in the first embodiment of the present invention includes: a centralized controller CA and AP1-AP6, and the centralized controller CA controls 6 APs to improve network capacity and performance.

[0019] Such as figure 2 As shown, the centralized controller CA includes: an arrangement control module 22 , a modulation control module 24 , a power control module 26 and a load control module 28 .

[0020] The layout control module 22 is used to control the layout of AP1-AP6 so that the frequency points of adjacent APs are different. In the first embodiment, AP1 and AP4 have the same frequency, AP2 and AP5 have the same frequency, and AP3 and AP6 have the same frequency . These 6 APs are arranged sequentially from AP1 to AP6, so that the APs of the same frequency are far...

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Abstract

The invention discloses WLAN high-density user coverage method and system thereof under open environment, and a centralized controller. The WLAN high-density user coverage method under open environment comprises the following steps of: configuring APs to enable frequency points of adjacent APs to be different; setting a minimum-rank modulation mode of the first AP according to signal levels and a signal to interference ratio of signals which are sent by the second AP adjacent to the first AP and are received by the first AP; and controlling the first AP to refuse to access to a terminal lower than the minimum-rank modulation mode. The invention also discloses a WLAN high-density user coverage system and a centralized controller under the open environment. Through setting the minimum-rank modulation mode of the APs, the invention limits access of a user so as to enable the user to access to the AP nearer; and under working at a higher modulation mode, the invention shrinks the coverage range of the AP in a disguised form, lowers same frequency interferences, and improves network overall efficiency.

Description

technical field [0001] The invention relates to a WLAN technology, in particular to a WLAN high-density user coverage method, system and centralized controller in an open environment. Background technique [0002] At present, WLAN technology has become a widely used technology for high-speed broadband wireless data services. It is often used in airports, hotels, office buildings, campuses and other environments. In this conventional environment, WLAN signals can be effectively isolated by physical means such as walls, and users The distribution density is small, and the concurrency rate of user data is small, so users can get a better online experience. However, in the open environment, where the user density is high and the concurrency rate is high, the existing frequency points cannot meet the service requirements. Therefore, it is necessary to increase the deployment density of Access Points (APs) to improve throughput. . [0003] It can be seen from the working mechani...

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Application Information

Patent Timeline
26 May 2010
Publication
CN101714935A
IPC
H04L12/28; H04L12/56; H04B7/26; H04W84/12
Inventors
李跃; 董昕