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Rapid roaming system and method of wireless terminal based on AP adjacent relations

An adjacency relationship and wireless terminal technology, applied in the electronic field, can solve problems such as access delay, network congestion, and affect user experience, and achieve the effects of fast access and handover, improved user experience, and reduced network congestion

Active Publication Date: 2016-06-08
杭州吉吉知识产权运营有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the existing roaming network, multiple APs are connected together by a wired network, which expands and extends the application range of the wireless network. The authentication behavior of the terminal roaming is centrally controlled by the AC, and roaming requires the participation of the AC configuration; the terminal's The authentication result needs to be returned from the AC to the wireless AP. If the network delay will cause user access delay and affect the user experience; the AP continuously requests the terminal authentication result from the AC, which may cause network congestion

Method used

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  • Rapid roaming system and method of wireless terminal based on AP adjacent relations
  • Rapid roaming system and method of wireless terminal based on AP adjacent relations

Examples

Experimental program
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Embodiment 1

[0021] Embodiment 1. This embodiment provides a fast roaming system for wireless terminals based on the AP adjacency relationship. A cloud server is connected to several wireless APs, and each wireless AP periodically obtains the interaction information of wireless APs with adjacent relationships through full-channel scanning. And build an adjacency table based on the interaction information.

[0022] The exchange information includes the IP address of the wireless AP, the MAC address, and the list of successfully authenticated terminals. The adjacency table includes each adjacent wireless AP, and each adjacent wireless AP's IP address, MAC address, and a list of successfully authenticated terminals. The successfully authenticated terminal list of each wireless AP includes terminal information that has been associated with the wireless AP and successfully authenticated. The cloud server is a cloud AC server.

Embodiment 2

[0023] Embodiment 2, this embodiment provides a method for performing fast roaming of wireless terminals based on AP adjacency by using the system described in Embodiment 1, including:

[0024] When a terminal enters the coverage of any wireless AP, the terminal sends authentication information to the wireless AP,

[0025] The wireless AP obtains the terminal information of the terminal, traverses the list of successfully authenticated terminals, and matches the terminal information with the list of successfully authenticated terminals. If the match is successful, the terminal accesses the wireless AP;

[0026] Match the successfully authenticated terminal list of each adjacent wireless AP in the neighbor relationship table of the wireless AP with the terminal information. If the match is successful, the terminal will access the adjacent wireless AP. If the match is unsuccessful, the

[0027] The wireless AP sends the authentication information of the terminal to the cloud ser...

Embodiment 3

[0030] Embodiment 3, present embodiment has carried out following optimization on the basis of implementing 2:

[0031] After the terminal accesses the wireless AP or the adjacent wireless AP, the wireless AP or the adjacent wireless AP synchronizes the terminal information of the terminal to the list of successfully authenticated terminals of each wireless AP in the adjacency table.

[0032] In this embodiment, when a terminal that has been successfully authenticated by any wireless AP in the system roams to the coverage area of ​​a wireless AP adjacent to the wireless AP, since the adjacent wireless AP already has terminal authentication result information, Fast roaming switching can be realized, and the access network restriction of the terminal is opened; when the terminal continues to roam back to the wireless AP, it can also realize fast roaming switching.

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Abstract

The invention discloses a rapid roaming system and method of a wireless terminal based on AP adjacent relations. Through a successful authenticated terminal list and an adjacent relation list of each wireless AP, when a terminal enters the coverage range of any one wireless AP in the system, firstly, the current wireless AP successively judges whether the terminal has ever accessed the current wireless AP or the wireless APs adjacent to the current wireless AP, if the terminal has ever accessed the current wireless AP or the wireless APs adjacent to the current wireless AP, the terminal can directly access network resources; with respect to the terminal information which is sent to a cloud server through the current wireless AP and is successfully authenticated, according to the authentication result information of the terminal, the wireless AP automatically writes the terminal information in the successful authenticated terminal list of the current wireless AP and synchronizes the terminal information to the successful authenticated terminal list of each adjacent wireless AP in the adjacent relation list. Through the system and the method provided by the invention, the network congestion is reduced; the access and switch speeds of a user in roaming are increased; and the user experience is promoted.

Description

technical field [0001] The present invention relates to the field of electronic technology, in particular to a wireless terminal fast roaming system and method based on AP adjacency relationship. Background technique [0002] The current mobile Internet is developing rapidly. Statistics show that each person currently has at least 2-3 wireless terminals in use at the same time (mainly notebooks, tablet computers, mobile phones, and smart wearable devices). In scenarios such as large shopping malls, airports or train waiting halls, or large-scale conferences, due to the large space and high user mobility, it is necessary to realize the stable access of STAs to new APs during the movement process. The coverage area of ​​a single AP is limited, so some scenarios with large coverage often deploy more than two APs, so that all WIFI terminals within the scope of the scenario can use the wireless network. But some wireless terminals hope to have full mobility, just like the roamin...

Claims

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Application Information

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IPC IPC(8): H04W28/02H04W36/08
Inventor 张娟
Owner 杭州吉吉知识产权运营有限公司
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