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A kind of multicast service processing method and access point

A processing method and technology for multicast services, which are applied in broadcast service distribution, advanced technology, data switching networks, etc., and can solve problems such as too many air interface resources.

Active Publication Date: 2020-12-22
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, each unicast frame uses air interface resources, so the AP that transmits multicast packets in multicast-to-unicast mode occupies more air interface resources.

Method used

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  • A kind of multicast service processing method and access point
  • A kind of multicast service processing method and access point
  • A kind of multicast service processing method and access point

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0059] The application will be described in detail below in conjunction with the accompanying drawings.

[0060] figure 1 It is a schematic diagram of a WLAN network architecture applicable to this application. like figure 1 As shown, the network architecture includes APs and terminals. Optionally, the network architecture includes a wireless controller, a server, a switch or any combination thereof.

[0061] After the AP receives the multicast message from the network, it can generate a WLAN frame according to the multicast message and send it to the terminal. The multicast service processing method in this application is applicable to the transmission of wireless local area network frames between the AP and the terminal.

[0062] A way to balance the reliability and resource occupation of APs sending multicast packets is that the AP sends multicast packets of different multicast groups in different ways. For example, when an AP receives a multicast packet from multicast...

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Abstract

Disclosed are a multicast service processing method and an access point. The method includes: the AP generates a first group address frame and an individual address frame according to the multicast message, the first group address frame is encrypted by the first multicast key, and the individual address frame is encrypted by the unicast key of the second terminal, because The first terminal and the second terminal in the multicast group have different multicast keys. Therefore, after receiving the first group address frame, the first terminal can decrypt the first group address frame, and then successfully receive the first group address frame. group address frame, the second terminal cannot successfully receive the first group address frame, but can successfully receive a single address frame, so that the AP can communicate with the terminals in the multicast group by using multicast and unicast at the same time. Effectively balances the reliability and resource occupation of APs sending multicast packets.

Description

technical field [0001] The present application relates to the technical field of wireless communication, in particular to a multicast service processing method and an access point. Background technique [0002] A wireless local area network (English: wireless local area networks, WLAN) may include multiple access points (English: access point, AP). [0003] When an AP receives a multicast packet, the AP can send the multicast packet in multicast mode. When sending multicast packets in multicast mode, the AP can generate and send corresponding multicast frames so that multiple terminals in the multicast group can receive the same multicast packet. However, there is no retransmission mechanism for multicast frames, and the reliability is not high. [0004] Alternatively, the AP can also transmit multicast packets in a multicast-to-unicast manner. When sending multicast packets in the multicast-to-unicast mode, the AP generates multiple corresponding unicast frames according...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W4/06H04W12/04H04W12/03H04W12/0431
CPCH04W4/06H04W12/041H04L12/189H04W84/12H04W88/08H04W12/037H04W12/0433H04L61/5069H04L2101/622
Inventor 张林杨亚王小军
Owner HUAWEI TECH CO LTD