Method for implementing multimedia multicast service of mobile communications network

Abstract

The invention relates to a method for realizing a mobile communication network media multicast business, comprising: a step 1 that a gateway node sends a notification message including a corresponding IP multicast address to a user device and a communication node which supports an IP multicast in the lower course; a step 2 that if the communication node receiving the notification message adds to a corresponding multicast group or all downstream nodes support the IP multicast, a step 3 is executed, if not after adding to the corresponding multicast group, the step 3 is executed; the step 3 that a multimedia server sends multimedia multicast business content to the communication node adding to the IP multicast group; a step 4 that the communication node sends the multimedia multicast business content to the downstream nodes which don't support the IP multicast or a user terminal. The invention can reach to beneficial technical effects of effectively saving up bandwidth, effectively reducing pressure for the communication node to transmit data, improving operating factor of network equipment and occupying coefficient of media resources, and increasing capacity of systems and expandability of business.

Description

technical field [0001] The invention relates to a method for realizing a multimedia multicast service, in particular to a method for realizing a mobile communication network multimedia multicast service, and belongs to the field of mobile communication. Background technique [0002] With the rapid development of mobile communication, users' demand for communication is no longer satisfied with telephone and message services, and a large number of multimedia services have emerged, some of which require multiple users to receive the same data at the same time, such as video on demand, TV broadcast, Video conferencing, online education, interactive games, etc. Compared with general data, these mobile multimedia services have the characteristics of large data volume, long duration, and delay sensitivity. In order to realize multicast and broadcast of plain text low-rate message services and high-speed multimedia services, and effectively use mobile network resources, operators u...

AI Technical Summary

Problems solved by technology

Although this method prevents the multimedia server from sending service data to the user equipment in the gateway node of the mobile communication subnet, the data is still transmitted in unicast mode between the multimedia server and the gateway node, and the relationship between the multimedia server and multiple gateway nodes is not considered. The transmission optimization among multiple gateway nodes, the same data sent to multiple gateway nodes is repeatedly transmitted in the IP network between the multimedia server and the gateway nodes, see figure 2

This results in a waste of IP network bandwidth resources, increases the load on the multimedia server, and affects the number of gateway nodes that the multimedia server can support, that is, its scalability.

Moreover, with the rapid development of multimedia multicast services and the increase in the number of gateway nodes in mobile communication subnets using the same service, the impact of the above defects on network bandwidth resources and scalability continues to increase

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