Control method and control equipment for multicast video transmission in WLAN, and transmission system

Abstract

The invention relates to the technical field of wireless local area network, and discloses a control method and control equipment for multicast video transmission in the WLAN and a transmission system. The control method includes: a video multicast request from a station (STA) is received via an access point (AP); the request comprises a media access control (MAC) address of the STA; a bitmap corresponding to the STA is checked according to the MAC address; the transmission network, the radio frequency channel, and the sending mode of the AP which send videos to the STA are determined according to the bitmap, wherein the sending mode comprises unicast or multicast; and a control message for representing the transmission network, the radio frequency channel, and the sending mode is sent to the AP. According to the control method for multicast video transmission in the WLAN, the quality of video reception of the STA can be improved.

Description

technical field [0001] The present invention relates to the technical field of wireless local area network (WirelessLocalAreaNetwork, WLAN), in particular to a control method, control device and transmission system for multicast video transmission in WLAN. Background technique [0002] In a WLAN, a station (station, STA, such as a PDA (personal digital assistant, personal digital assistant), a wireless notebook, etc.) accesses the network through an access point (AccessPoint, AP). At present, in the process of multicast processing, it is usually completed by client software, such as VLC (VideoLANClient, multimedia player) and electronic school bag, which send video multicast packets to the wireless network. After the client network card receives them, the The client software does the parsing. Since the client does not respond to an acknowledgment (acknowledgment, ACK) message after the multicast packet sent by the AP, the AP cannot confirm whether the packet is lost, nor wi...

AI Technical Summary

Problems solved by technology

In this way, when multiple STAs are performing video on demand, because one STA may be associated with different Radios, the AP will receive multiple message requests from the same STA through multiple Radios, so that the AP can use the corresponding Radio in the same way Transmission of multiple video information increases the load pressure on the AP and causes a serious waste of downlink bandwidth; at the same time, when the access rate is lower than the multicast sending rate, the client may not receive the video multicast message, reducing the video quality, and Affected user video experience

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