Method and device for limitting call in trunking system

Abstract

This invention discloses a method for limiting call in a cluster system and a device, in which, said method includes: setting up a database including the relationship between storage dispatch location regions and local areas, dispatch location region and a base station controller, the dispatch location region lists contained in the service region corresponding to the limited groups and / or limited users, limiting calls of calling and called according to the relationship and dispatched service regions of limited groups or limited users to control the cluster call in the dispatched service region.

Description

technical field [0001] The invention relates to a digital trunking communication system, in particular to a method for restricting trunking calls according to dispatching areas, limiting trunking calls to a certain dispatching area, and terminals beyond the dispatching area will not be able to obtain trunking call services. Background technique [0002] The trunking communication system is an important branch of the mobile communication system, widely used in medical lifesaving, transportation, social linkage, municipal management, water conservancy and hydropower, factories and mines, public security and other fields. Group customers (such as hotels, ports, etc.) who choose trunking communication usually hope that the trunking calls related to the group can be limited to the work place, and the trunking terminal outside the work place There will be no trunking services. Some telecom operators who provide trunking services hope to use the difference in tariffs to attract mor...

AI Technical Summary

Problems solved by technology

[0004] Regarding the setting and storage methods of the restricted dispatching area, the call dispatching area in the prior art is composed of one or several cells, and the corresponding relationship between the restricted users and the cells in the dispatching area is directly recorded in the database on the network side. There are two defects in this design: First, the logical scheduling service area in the database on the network side directly corresponds to the physical cells divided by the base station side. When there are many users in a geographical area and the distribution is concentrated, usually the division At this time, if the call restriction area includes the geographical area, it is necessary to record a large number of cell numbers on the network side, which increases the burden on the database and the amount of signaling transmission; The expansion of the network may add base stations in a geographical area, and the increase of base stations will lead to a corresponding increase in the number of cells in this area. New districts must be added, and the workload of modifying the database is huge;

[0007] The prior art does not involve the processing of the terminal entering the restricted dispatching area late in the trunking call, and does not involve the processing of the terminal starting up in the restricted dispatching area

[0008] At the same time, in the prior art, the system must first locate the cell where the called user is currently located, and then judge whether the called user is in the area where calls are allowed according to the comparison between the cell number after positioning and the call restriction area, while the trunking group call The feature is that it responds to all calls, and requires short call establishment time and fast access speed for calling and called parties. The method of positioning first and then paging is obviously not advisable.

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