Broadband digital trunking service implementation method and trunking scheduling management centre

A broadband digital trunking service implementation method, comprising:

• receiving, by a network side, a creating trunking bearer request sent by a trunking scheduling management center, and sending said creating trunking bearer request to a user with talking right in a group;
• receiving, by said network side , a trigger request sent by said trunking scheduling management center, and establishing, by said network side, a dedicated or shared radio access bearer for all listening users in said group according to said trigger request;
• wherein, establishing, by said network side, a dedicated or shared radio access bearer for all listening users in said group according to said trigger request, comprises:
• establishing, by said network side, a dedicated radio access bearer for listening users in a single call according to said trigger request;
• or
• establishing, by said network side, a downlink shared radio access bearer for listening users in a group call according to said trigger request.

A trunking scheduling management center, comprising:

• a receiving module, configured to receive a trunking call establishment request initiated by a user;
• and
• a processing module, configured to, according to said trunking call establishment request, send to a network side a creating trunking bearer request carrying call information and a transmission bearer address by the following way:
• according to said group information carried in said trunking call establishment request, determining a playback feature of single call or group call of a trunking service at said network side and attributes of the user's role in said single call or group call of said trunking service, and sending said creating trunking bearer request carrying said call information and said transmission bearer address to said network side.

A multi-cell/multicast coordination entity (MCE), comprising:

• a distributing module, configured to, after receiving a radio access bearer establishment request sent by a mobility management entity (MME), allocate radio resources and scheduling information of said radio resources to a trunking service session;
• and
• a sending module, configured to:
• send said radio access bearer establishment request to all evolved NodeBs controlled by said MCE;
• wherein, said sending module is further configured to:
• receive a call establishment acknowledgement prompt information from said MME, and send said call establishment acknowledgement prompt information to each evolved NodeB to which a current trunking service session service area belongs.

An evolved NodeB, comprising:

• an interface module, configured to receive a radio access bearer establishment request that carries quality of service information identifiable by said evolved NodeB and a transmission bearer information and is sent by a mobility management entity (MME);
• and
• an establishing module, configured to, according to said radio access bearer establishment request received by said interface module, establish a radio access bearer;
• wherein, said interface module is further configured to:
• receive a call establishment acknowledgement prompt information from said MME, and on a multicast control channel (MCCH), notify all users in a group call of said call establishment acknowledgement prompt information, wherein said call establishment acknowledgement prompt information comprises talking right occupied information, talking right idle information, priority information of the user with talking right, and priority information of said group.

A multimedia broadcast/multicast service gateway (MBMS-GW),comprising:

• an interface module, configured to receive a trunking call establishment request sent by a broadcast multicast service center (BM-SC), and send a creating trunking bearer request carrying a multicast address to a mobile management entity (MME);
• and
• a distributing module, configured to, according to said creating trunking bearer request from said BM-SC, allocate the multicast address for a session;
• wherein, said interface module is further configured to send a trunking call establishment response to said BM-SC, and send to said mobile management entity (MME)a call establishment acknowledgement prompt information which is from said BM-SC.