Station management area call service implementation method and scheduling information server

Abstract

The invention discloses a station management area call service implementation method and a scheduling information server. The method comprises the following steps: after the scheduling information server DIS receives a station management area group number request message sent by UE, determining a target group number of a station management area where the UE is located based on a terminal type anda terminal number carried in the request message; sending, by the DIS, a station management area group number response message carrying the target group number to the UE, so that the UE initiates a group call establishment flow to a core network based on the target group number so as to achieve station management area call service, wherein the terminal type is a fixed station or a vehicle-mountedstation, and group numbers corresponding to the station management areas and cell identifiers covered by the station management areas are configured in an HSS connected with the core network in advance. The DIS determines the group number of the station management area where the UE is located based on the terminal type and the terminal number carried in the request message and returns the same tothe UE, so that the UE initiates the group call establishment flow, and no participation of a scheduling station is needed in the whole process, so that the call delay is short.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a method for realizing a call service in a station management area and a scheduling information server. Background technique [0002] The trunking communication system is a dedicated wireless communication system for specific industry applications developed to meet the command and dispatch needs of industry users. The trunking communication system has a wide range of application markets in government departments, public safety, emergency communications, electric power, civil aviation, petroleum, ports and other fields. [0003] TD-LTE-based Broadband Trunking Communication (Boardband Trunking Communication, B-TrunC) system uses TD-LTE as the core technology, combining the high speed and large bandwidth of TD-LTE with the resource sharing, fast call establishment, Combining features such as command and dispatch, it is a communication system that can provide high-speed data...

AI Technical Summary

Problems solved by technology

[0016] 1. Increased call delay: The existing call service implementation methods in the station management area require the participation of the dispatcher, and the dispatcher initiates the creation of a group process, which will increase the call delay;

[0017] 2. The probability of call failure increases: For the station management area call initiated by the vehicle station, if the group creation process initiated by the dispatcher fails, it means that the station management area call service fails;

[0018] 3. The effect is not good: when the fixed station initiates a call to the station management area, the dispatcher will only initiate a group creation process for the vehicle-mounted stations and fixed stations that currently exist in the station management area. After other subway trains enter the station management area, they cannot answer the call from the fixed station. Speech, the business effect of the station management area is not good;

[0019] 4. Complicated service implementation: After the station management area call service of a certain platform is initiated, the vehicle-mounted station newly entering the station may initiate the station management area call service again. Whether the newly initiated station management area call and the established station management area call need to be merged and how? Mergers require in-depth research

In addition, after each call service in the station management area, the dispatcher needs to initiate the process of creating a group to clear the group members. The logic and business implementation are very complicated

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