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Fast roaming method for multi-gateway terminal in wireless local area network

A wireless local area network and multi-gateway technology, applied in the field of local area network, can solve the problems of prolonging the data packet time and affecting the user's Internet access speed, etc.

Inactive Publication Date: 2015-03-25
陈晨 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a fast roaming method for multi-gateway terminals in a wireless local area network, aiming to solve the problem that the existing STA sends data packets to the external network with a long time delay and affects the user's Internet access speed

Method used

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  • Fast roaming method for multi-gateway terminal in wireless local area network
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  • Fast roaming method for multi-gateway terminal in wireless local area network

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Experimental program
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Embodiment 1

[0087] In the present invention, at the MAP node accessed by the STA, the data packet sent by the STA to the external network is intercepted, and then the intercepted data packet is sent to the MPP node with the best communication conditions selected by the MAP node through the gateway selection algorithm, and the MPP node will The data packet is forwarded to the external network. In this way, the delay of data packets sent by the STA to the external network is reduced, and the user's online experience is improved.

[0088] (1) A new corresponding table, such as Table 1

[0089] (2) the hijacking and forwarding mechanism of the common data packets used in the present invention:

[0090] The hijacking and forwarding process of ordinary data packets of MAP nodes is as follows: figure 2 As shown, the detailed steps are as follows:

[0091] Step 1. After receiving the unicast data packet, the MAP node extracts the source mac address of the data packet, and then queries the loc...

Embodiment 2

[0116] The invention intercepts the data packet sent by the STA to the external network at the MPP node accessed by the STA, and then forwards the intercepted data packet to the external network by the MPP node. In this way, the delay of data packets sent by the STA to the external network is reduced, and the user's online experience is improved.

[0117] (1) A new corresponding table, such as Table 1:

[0118] (2) the hijacking and forwarding mechanism of the common data packets used in the present invention, such as Figure 5 As shown, the specific process is as follows:

[0119] Step 1: After receiving the unicast data packet, the MPP node extracts the source mac address of the data packet, and then queries the local translation table to determine whether the source mac address is in the table. If it is in the local translation table, it means that the node is connected For the data packet sent by the client, go to step 2; otherwise, the node just forwards the data packet...

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Abstract

The invention discloses a fast roaming method for a multi-gateway terminal in a wireless local area network. A data packet sent to an outer network by an STA (station mobile terminal) is intercepted, the intercepted data packet is sent to an MPP (Mesh Portal Point Mesh gateway node) node with the optimal communication condition, the MPP node forwards the data packet to the outer network, and therefore the time delay of the data packet sent to the outer network by the STA is shortened. The fast roaming method is suitable for a wireless Mesh network scene with multiple MPP nodes used. The fast roaming method can be applied to other wireless Mesh networks with multiple MPP nodes used so as to shorten the Internet surfing time delay of the STA. The method reduces the load in the Mesh network, shortens the time delay of the data packet, sent to the outer network, of the STA and increases the Internet surfing speed of a user.

Description

technical field [0001] The invention belongs to the technical field of local area networks, in particular to a fast roaming method for multi-gateway terminals in a wireless local area network. Background technique [0002] In a wireless Mesh network with multiple MPPs, the MPP usually acts as a DHCP server to assign an IP address to the STA. After the STA obtains the IP address from the MPP, it will set it as its default gateway, and all data packets sent to the external network will be handed over to the default gateway. Gateway forwards. If the STA roams far away from its default gateway, the STA will still send the external network data packets to its default gateway through other MP nodes in the network and then forwarded by the default gateway, regardless of whether there are other packets near the STA. The MPP node can provide the service of connecting to the external network, which will cause a large delay in the data packets sent by the STA to the external network. ...

Claims

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Application Information

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IPC IPC(8): H04L29/12H04W8/02
CPCH04W8/02H04W40/02H04W40/22
Inventor 陈晨刘乃安郭峰王在刚
Owner 陈晨
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