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Quick-recognition base station active switching trunking communication method and terminal

A technology of active switching and trunking communication, applied in wireless communication, electrical components, broadcast service distribution, etc., can solve problems such as affecting terminal uplink services, reducing system hardware receiving sensitivity, interference, etc., to improve user experience and satisfaction, reduce The number of customer complaints and the effect of improving the success rate of initiation

Inactive Publication Date: 2016-07-27
HYTERA COMM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Please refer to figure 2 As shown, the existing background scanning and handover can meet the normal needs of communication in general, but the trunking system is likely to cause asymmetric instability of the uplink and downlink signals in the electromagnetic environment with complex terrain, or the receiving sensitivity of the system hardware itself is reduced. , or the system has a normal downlink signal due to a software failure, but cannot process the uplink service for a period of time, which affects the normal uplink service of the terminal
Or, the downlink signal is very good, but the uplink is interfered or blocked, which makes the terminal unable to initiate services normally.
None of the above scenarios can meet the background scanning and handover conditions, so the terminal is always locked under the existing base station, and the service initiation will lead to a high probability of failure and affect the user experience

Method used

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  • Quick-recognition base station active switching trunking communication method and terminal
  • Quick-recognition base station active switching trunking communication method and terminal
  • Quick-recognition base station active switching trunking communication method and terminal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] When the terminal is in the prior art figure 1 , figure 2 In the defect environment described, although the downlink signal is normal, any service request initiated by the terminal will result in failure. In this case, please refer to image 3 As shown, the terminal MS is originally registered at the first base station BS_A (currently registered base station), and the downlink signal of the first base station BS_A remains normal, so background roaming or cross-area roaming in the prior art is not required. But at this time, the uplink signal of the terminal MS is abnormal, resulting in service failure. The terminal MS counts the number of consecutive service failures. When the upper limit value is reached, the first base station BS_A is regarded as an unavailable base station; The second base station BS_B, the third base station BS_C, etc.; scan and register to one of the surrounding base stations, such as the second base station BS_B. At this time, the registered su...

Embodiment 2

[0041] Please join again image 3 As shown, when the terminal in the voice call service is in the defective environment described in the prior art, pressing PTT (Push-To-Talk) to request the right to speak will also cause the request to fail. At this time, the terminal MS sends statistics to the first base station BS_A (currently registered base station) requests failed times. When the number of failed requests reaches the preset upper limit, it scans the surrounding second base station BS_B, third base station BS_C, etc., and registers with the surrounding available base station second base station BS_B. The call service is continued under other base stations through handover.

[0042] Please refer to Figure 5 As shown, the processing flow of the terminal includes:

[0043] Step1: The terminal MS in the voice call, the user presses the PTT to request the right to speak from the first base station BS_A (currently registered base station);

[0044] Step2: If the request fails...

Embodiment 3

[0047] Please refer to Image 6 As shown, when the terminal MS is in an idle state, it regularly performs handshake frame (special signaling) interaction with the first base station BS_A, through which the normal uplink and downlink are ensured. like Figure 7 As shown, when an abnormal situation occurs, the first base station BS_A (currently registered base station) does not receive the uplink signaling of the terminal MS, or cannot process the uplink signaling, and the terminal MS counts the number of times that the continuous uplink signaling fails to receive a downlink response ( That is, the number of handshake frame failures), when the upper limit of the number of times is reached, the terminal MS starts the scanning of surrounding neighboring base stations, and registers with the second base station BS_B or the third base station BS_C available in the surrounding area. Through the strategy of this example, the availability of the base station can be quickly and timely ...

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Abstract

The invention discloses a quick-recognition base station active switching trunking communication method and terminal. When the terminal sends an uplink request to a currently registered base station, the number of times of continuous failures of the uplink request is calculated. After the number of times of continuous failures of the uplink request reaches a preset upper limit value, the terminal scans a surrounding base station, and registers other useable base stations. According to the invention, the terminal employs an active scanning strategy, can quickly detect that the currently registered base station cannot be used and switch to a useable base station, and guarantees that the business of the terminal is not affected. The method improves the success rate of business initiation of the terminal.

Description

technical field [0001] The invention belongs to the field of wireless trunking communication, and in particular relates to a trunking communication scheme for a terminal to quickly identify and actively switch to an available base station. Background technique [0002] In the field of private network communication, the uplink and downlink signals of terminals and base stations under the trunking communication system will maintain a relatively stable asymmetric relationship. When the downlink field strength received by the terminal weakens to a certain extent, the uplink signal received by the system will also weaken accordingly. Normal communication business. At this time, the terminal will search for other surrounding base stations with better signals, and select a base station with a good signal to register. [0003] like figure 1 As shown, when the terminal MS (MobileStation) is on standby, when the MS detects that the downlink signal of the base station (BaseStation) ...

Claims

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Application Information

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IPC IPC(8): H04W4/10H04W36/00
Inventor 刘星孙鹏飞尹瑞华张颖哲汪金华刘建良
Owner HYTERA COMM CORP
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