Method for implementing cross base station automatic network passing by MPT-1327 cluster communication system

Abstract

The invention discloses a method of MPT-1327 trunking communication system realizing automatic net over across the base station, and the method is as follows: 1) first roaming base station channel parameters, established selection rules and offline conditions are written in advance in a radio station through a code-writing software; 2) in standby state, the radio station carries out periodic detection on the signal quality and signal intensity of other base stations and real-timely stores the detection results in a special list of the base station channel within the radio station; when the base station detection is completed, the radio station determines the base station with optimal signals in current state according to the own selection rules and stores the control channel number of thebase station; 3) if the number of the present base station meets the offline condition, the radio station is switched to a new base station according to the established offline action to continue standby if in standby state, and the radio station is switched to the base station with optimal signals if in conversation state, is registered on the net and initiates new calls to maintain original conversation, that is automatic net over across the base station; if the offline condition is not met, the radio station in standby state continues the step 2).

Description

technical field [0001] The invention belongs to the communication technology, and in particular relates to a method for automatically crossing the network of a mobile terminal of an MPT-1327 trunking communication system in a standby state and a talking state, and is mainly used in the field of public security communication. Background technique [0002] Trunking communication system is a dedicated dispatching mobile communication system that shares wireless channels. It adopts multi-channel sharing and dynamic channel allocation technology in modern communication, and has dispatching functions such as individual call, group call, and broadcast call. Its characteristics are call It is fast to set up, users have different priorities, call time is limited, and it has the function of remote death and resurrection, which is very suitable for public security systems. [0003] MPT-1327 is an internationally open dedicated land trunking mobile communication signaling standard. It a...

AI Technical Summary

Problems solved by technology

However, in the networked system, the overall coverage area becomes larger and the overlapping coverage area increases. Before the radio station completely leaves the coverage area of ​​the current base station, it has already entered the coverage area of ​​another base station, and the signal quality of the new base station may be better than that of the original base station. is even better, but the traditional radio station cannot detect this situation and switch to the new base station immediately, which will directly affect the quality of the call, and also prevent the large-scale networked system being built from playing a better role

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