Patent ID: 9722940
Date: 2017-08-01
CPC Classifications: H04L,H04W

Claim:
1. A network subsystem, comprising: a MME, a SGW and BM-SC and HSS connected to the MME, a MBMS-GW connected to the BM-SC, and a P-GW connected to both the BM-SC and the SGW, wherein: the MME comprises a first establishment module, a second establishment module, an update module and an occupation module: said first establishment module is configured to: by interacting with a terminal applying for speaking right, a first base station to which the terminal applying for speaking right belongs and a trunking scheduling management center, complete an establishment of a default bearer between the first establishment module, the first base station and the terminal applying for speaking right; said second establishment module is configured to: by interacting with the first base station, and a Service Gateway (SGW) and a Packet Data Network Gateway (P-GW) located in the same network subsystem in which the MME is located, complete an establishment of a trunking dedicated speaking right application bearer: said update module is configured to: by interacting with a Multimedia Broadcast Multicast Service-Gateway (MBMS-GW), the SGW and the trunking scheduling management center, complete a trunking speaking right update, and send a trunking speaking right request accept message to the terminal applying for speaking right via the first base station; and said occupation module is configured to: send a trunking speaking right occupation prompt respectively to the first base station and a second base station to which other idle terminals belongs in the same group in which the terminal applying for speaking right is located, so that the first base station and the second base station notify all terminals within a corresponding trunking area of occupation of speaking right and updated configuration information via a control channel of a Multimedia Broadcast Single Frequency Network (MBSFN) area; the MBMS-GW is configured to: take charge of multicast address saving and data distribution and process a trunking service session control command; the P-GW is configured to: receive a trunking service bearer establishment request sent by a trunking scheduling management center, and forward trunking service request information sent by a UE and processed by the MME to the trunking scheduling management center; and the HSS is configured to: save information of a base station to which a terminal belongs and an identity of a group to which the terminal belongs.