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A data transmission method and device when a client moves between different APs

A data transmission method and client-side technology, applied in network data management, electrical components, wireless communication, etc., can solve problems such as packet loss, poor wireless experience, and impact on client communication quality, so as to improve communication quality and wireless experience. Effect

Active Publication Date: 2016-08-31
NEW H3C TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Due to the mobility of the client, the location of the client may move after a successful connection, such as from figure 1 Move to the location shown figure 2 In the position shown, the client is in the working range of AP C, but the client is connected to AP A; Connecting to AP A will greatly affect the communication quality of the client, and there may be a large number of packet loss, retransmission, etc., and cause a poor wireless experience

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  • A data transmission method and device when a client moves between different APs
  • A data transmission method and device when a client moves between different APs
  • A data transmission method and device when a client moves between different APs

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Embodiment Construction

[0045] Aiming at the problems existing in the prior art, an embodiment of the present invention provides a data transmission method when a client moves between different APs, and the method can be applied to a WLAN including an AC, a first AP, a second AP, and a client ; Wherein, the first AP is the AP that initially provides services for the client, and the second AP is the AP corresponding to the area after the client moves.

[0046] by figure 1 and figure 2 For the application scenario of this embodiment of the present invention, APs include AP A, AP B, AP C, and AP D, and AP A, AP B, AP C, and AP D have been added to an AP GROUP (group). APs are all in the same network and can communicate with each other through the Layer 2 network.

[0047] Assume that in the AP GROUP, the client connects to AP A when it connects for the first time (that is, AP A initially provides services for the client in the AP GROUP), after the client connects successfully, it starts from figure ...

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Abstract

The invention discloses a method and a device for transmitting data of client moving between different APs (access points). The method includes the steps: transmitting corresponding information of the client to a second AP through a first message by an AC (access controller) when the client moves from a first AP coverage area to a second AP coverage area and does not roam from a first AP to the second AP; replacing the BSSID (basic service set identification) of the second AP with the BSSID of the first AP and transmitting a second message to the AC; and transmitting the second message to the first AP after the AC receives the second message. The MAC (media access control) address of the second AP and the MAC address of the client are carried in the second message. The communication quality of the client can be improved, and wireless experience of a user is enhanced.

Description

technical field [0001] The present invention relates to the field of communication technology, and in particular to a data transmission method and device when a client moves between different APs (Access Points, access points). Background technique [0002] Such as figure 1 and figure 2 As shown, it is a network diagram of AC (Access Controller, access controller) + FIT (thin) AP in WLAN (Wireless Local Area Network, wireless local area network). STA (client) connects to AC through AP; In the process of connecting to the network, the terminal needs to first search for available networks, and then decide which AP to choose to connect to the AC based on certain factors (such as signal strength). [0003] Due to the mobility of the client, the location of the client may move after a successful connection, such as from figure 1 Move to the location shown figure 2 In the position shown, the client is in the working range of AP C, but the client is connected to AP A; If it ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W8/08
Inventor 聂树伟
Owner NEW H3C TECH CO LTD