Implementation method for transmission-priority seizing of LTE-based broadband cluster system

A method for implementing speaking right seizing of a Long Term Evolution (LTE)-based broadband trunking system, wherein, the LTE-based broadband trunking system comprises a first terminal and a second terminal located in a same group, a broadband wireless access subsystem, a network subsystem and a trunking scheduling management center, and the method comprises:

• the network subsystem performing information updating of a floor in a trunking service with the trunking scheduling management center, and sending an update accept message to the second terminal via the broadband wireless access subsystem;
• the network subsystem, the broadband wireless access subsystem and the first terminal interacting to complete a context modification for a floor in a trunking service;
• and
• the network subsystem sending a prompt message indicating a floor is occupied to the broadband wireless access subsystem, so that the broadband wireless access subsystem sends the prompt message to the second terminal and the first terminal via a multicast control channel of an enhanced Multimedia Broadcast Multicast Service (eMBMS) and updates configuration information;
• wherein the method further comprises connecting an operation maintenance subsystem to both the broadband wireless access subsystem and the network subsystem;
• wherein the operation maintenance subsystem takes charge of various operations of account opening, account cancellation and user service authority of trunking users, and performs management on parameter configuration, performance and security of devices of the broadband wireless access subsystem and the network subsystem.

A Long Term Evolution (LTE)-based broadband trunking system, comprising orderly connected a terminal, a broadband wireless access subsystem, a network subsystem and a trunking scheduling management center, and an operation maintenance subsystem connected to both the broadband wireless access subsystem and the network subsystem, wherein:

• the broadband wireless access subsystem comprises multi-cells or a Multicast Cooperation Entity (MCE) and multiple base stations, wherein:
• the base stations are configured to:
• establish radio bearers for trunking service sessions, and notify terminals which the base stations serve of configured radio bearer information;
• and
• the MCE is configured to:
• take charge of performing radio resource allocations of the trunking service sessions transmitted by a Multicast Broadcast Single Frequency Network (MBSFN) with respect to the base stations in an MBSFN area;
• the trunking scheduling management center is configured to:
• take charge of completing management and scheduling for a floor in a trunking service, authorization management of trunking single call or group call, type of service assignment of trunking services and quality of service configuration of trunking services;
• and
• the operation maintenance subsystem is configured to:
• complete various operations of account opening, account cancellation and user service authority of trunking users, and perform management on parameter configuration, performance and security of devices of the broadband wireless access subsystem and the network subsystem;
• wherein the network subsystem comprises a Mobile Management Entity (MME) to:
• interact with a first terminal, a second terminal, a first base station to which the
• second terminal belongs and a second base station to which the first terminal belongs, and send to the first base station and the second base station a prompt message indicating a floor is occupied, so that the first base station and the second base station notify all terminals within a trunking area of a floor being occupied via a control channel of a Multicast Broadcast Single Frequency Network (MBSFN) area and update configuration information.