Method and device for broadcast bearer management

Abstract

The present invention relates to a method and equipment for broadcast bearer management. The method includes: a first bearer management server BMS receives a first message sent by a service server, and the first message includes a group identifier of a service group; The first message determines the first broadcast bearer for the service group; the first BMS sends the second message to the service server, and the second message carries the user plane information of the first broadcast bearer. The decoupling of the broadcast bearer management function and the application service layer control function is realized, and at the same time, compared with the prior art, the management and use of the broadcast bearer are concentrated on one control point, and the centralized scheduling of the broadcast bearer is completed.

Description

technical field [0001] The present invention relates to the field of communication networks, in particular to a method and equipment for multimedia broadcast / multicast service (Multimedia Broadcast / Multicast Service, MBMS) bearer management. Background technique [0002] The existing emergency push-to-talk (Mission critical push-to-talk over LTE) is used in public safety applications and general commercial applications, such as public utilities or railway applications, etc., and supports one-to-many (1-to-N) group communication. For 1-to-N group communication, the Mission critical push-to-talk (MCPTT) system supports two media transmission modes: unicast (Unicast bearer) transmission and MBMS broadcast (MBMSbearer) transmission . For the MBMS broadcast mode MCPTT system is based on the Group Communication System Enablers for LTE (GCSE_LTE) network structure, such as figure 1 shown. Wherein, the mission critical service server (Mission critical service server, MCS server)...

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Problems solved by technology

exist image 3 and Figure 4 In the process of using the pre-established or dynamically established broadcast bearer based on the MCPTT architecture shown, the activation, management, and call control of the broadcast bearer are tightly coupled in the MCPTT server, which will result in low efficiency in the use of broadcast bearer resources. ;Multiple MCPTT servers can exist in an MCPTT system to provide services, and the MCPTT server (or GCS AS) needs to decide whether to use the broadcast bearer according to the group members participating in the group call (group call). The existing MCPTT architecture In the above, each MCPTT server is independent of each other for the management and use of broadcast bearer, and lacks a system-level centralized broadcast bearer control node

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