Cluster communication network system and call method based on this system

Abstract

The invention discloses a trunking communication network system, comprising a dispatching desk, at least one radio node TRN, at least one dispatching center TDC, a location register TLR and an administration station AS; the TRN is used for accessing a mobile station MS to the network through an air interface thereof, doing mobility management and calling control for the MS accessed in the TRN, notisfying relative information of the MS accessed in the TRN to TDC, TLR and other TRN, acquiring and storing MS information sent by other TRN; the TDC is used for dispatching control through TRN and TLR in the network according to dispatching of the dispatching desk; the TLR is used for storing relative information of MS, providing information to TRN, assisting TRN to do mobility management for MS; the AS is used for managing and operating MS relative information stored by TLR. The invention also discloses a calling method based on the system.

Description

technical field [0001] The invention relates to a trunking communication system, in particular to a trunking communication network system and a calling method based on the system. Background technique [0002] The trunking communication system is an advanced mobile communication dispatching system. The so-called trunking communication system means that the available channels of the system can be shared by all users of the system, and it has the function of automatically selecting channels. Dispatch communication system. At present, the trunking communication system is implemented by adding a scheduling subsystem to an existing public network, such as a Global System for Mobile Communications (GSM, Global System for Mobile communications) network. Figure 1 is a schematic diagram of the GSM system. The GSM system is mainly composed of switching network systems and base stations. [0003] The switching network system mainly completes the switching function and the database ...

AI Technical Summary

Problems solved by technology

[0019] It can be seen that since the trunking communication system follows the existing public network architecture, the existing trunking communication system is a centralized control network, which not only burdens the control centers at all levels but also concentrates the reliability of the network on a small number of control centers , once there is a problem in the control center, it will lead to the paralysis of part or even the whole network, thus reducing the reliability of the network

Moreover, the trunking communication system continues to use the public network architecture, which also leads to too many unnecessary network units and high cost, which cannot meet the characteristics of miniaturization and low cost of dedicated network equipment.

[0020] In addition, in the existing network system, all base stations cannot directly communicate with each other, and need to communicate through the superior control center, which will increase the communication delay; moreover, in the call routing process, it is necessary to query the home location register, and the called user When roaming, the visitor location register is also required to assign a roaming number to the called user, which will increase the call delay of the trunking user

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