Automatic switchover technology for MPT1327 analog cluster communication terminal call between base stations

A technology of automatic switching and trunking communication, which is applied in the field of communication, can solve the problems such as automatic voice switching cannot be completed, and achieve the effects of ensuring voice quality, saving time, and improving work efficiency

Active Publication Date: 2009-03-04
HARBIN HYTERA TECH CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] There are problems in the existing technology: in the past, when the MPT1327 analog trunking terminal calls across base stations, it is getting farther and farther away from the coverage area of ​​the original base station, and the automatic voice switching of this call cannot be completed in the coverage area of ​​the new base station. If the overlapping coverage area is disconnected, the terminal searches for the base station again, and the call can be initiated again after registration

Method used

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  • Automatic switchover technology for MPT1327 analog cluster communication terminal call between base stations
  • Automatic switchover technology for MPT1327 analog cluster communication terminal call between base stations
  • Automatic switchover technology for MPT1327 analog cluster communication terminal call between base stations

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Embodiment Construction

[0040] The present invention will be further described below in conjunction with accompanying drawing and specific embodiment:

[0041] combine image 3 , this figure simulates the process of cross-area call transfer of field terminals. At this time, the overlapping coverage base stations of base station 3 are base stations 1, 2, 4, and 5. Assuming that the terminal is handed over from base station 3 to base station 5, the implementation process is described below:

[0042] Receive status:

[0043]The terminal locks on base station 3. After establishing a smooth group call, it goes online to traffic channel 1 of base station 3, and detects the field strength of traffic channel 1 of base station 3. When the field strength is weaker than the set value, the scanning overlaps and covers the base station. The sequence is carried out according to the order in which the four overlapping coverage base stations are written in the switching table, and the corresponding traffic channel...

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Abstract

The invention provides an automatic switching technology of trans-base-station conversation of an MPT1327 analog-cluster communication terminal. The terminal is locked to a system; the base station number of a locking system is firstly searched; when a field signal is weaker than a set threshold value, background scan is started, and the scan is carried out according to the input sequence of four base stations with overlapped coverage into a switching table; when a conversation is over and the status is off-line, a control signal channel just switched to the base stations with overlapped coverage is checked, and re-registration is carried out if a registration condition is met. If the control signal channel is succeed in registration, the scan is conducted according to the scan method set by the terminal until a signal channel meeting the condition is found, and re-registration is carried out. By improving the prior art, the automatic switching technology causes the terminal to automatically choose a base station with a stronger signal when in mobile conversation within an overlapped region of the stations; free switch is also available after getting on line within an overlapped region of a plurality of base stations; conversation on a base station with the strongest field signal is always available so as to ensure the quality of speech and no occurrence of loosing lock once the signal becomes weaker.

Description

(1) Technical field [0001] The invention relates to communication technology, in particular to a communication terminal communication technology across base stations. (2) Background technology [0002] There are problems in the existing technology: in the past, when the MPT1327 analog trunking terminal calls across base stations, it is getting farther and farther away from the coverage area of ​​the original base station, and the automatic voice switching of this call cannot be completed in the coverage area of ​​the new base station. If the overlapping coverage area is disconnected, the terminal searches for the base station again, and can initiate a call again after registration. (3) Contents of the invention [0003] The purpose of the present invention is to provide a MPT1327 analog trunking communication terminal which can automatically select a base station with a strong signal and ensure uninterrupted calls by improving the existing MPT1327 analog trunking communica...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04Q7/28H04Q7/38
Inventor 王孝何晓涛
Owner HARBIN HYTERA TECH CORP
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