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Method for implementing mobile terminal uninterrupted talking between base stations in cluster system

A mobile terminal and trunking system technology, applied in wireless communication, electrical components, network topology, etc., can solve the problems of short-term interruption of calls, affecting the quality of calls, and difficult to guarantee the reliability of signaling transmission, so as to reduce the occupation of control channel resources. , great flexibility, the effect of reducing the difficulty of development

Active Publication Date: 2009-04-22
HARBIN HYTERA TECH CORP
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  • Claims
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Problems solved by technology

[0004] However, the main disadvantage of the prior art solution is that because of the need to embed the channel-associated inter-phone signaling, the call is interrupted for a short time, which affects the call quality
Because the traffic channel does not define time slots like the control channel, the reliability of signaling transmission is difficult to guarantee, so the same signaling has to be retransmitted multiple times, which will invisibly worsen the existing problems

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  • Method for implementing mobile terminal uninterrupted talking between base stations in cluster system
  • Method for implementing mobile terminal uninterrupted talking between base stations in cluster system
  • Method for implementing mobile terminal uninterrupted talking between base stations in cluster system

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Embodiment Construction

[0054] The present invention will be further described below in conjunction with accompanying drawing and specific embodiment:

[0055] The basic principle of the present invention is: there is a big difference between the system and the GSM and CDMA public network, that is, the number of traffic channels is limited, so the time of each call must be limited, usually 10-20 minutes. The coverage radius of a single base station is generally greater than 10Km, and even larger in the suburbs, up to 20Km or more. Therefore, in a call, the movable range of the mobile terminal is limited, and the corresponding number of inter-base station handovers is also limited. Refer to Table 1 for the number of cross-base station handovers calculated according to the moving speed.

[0056] According to the communication coverage requirements of cities, suburbs and expressways, the communication network topology can be divided into the following two types:

[0057] 1. Expressway chain network

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Abstract

The invention provides a method for realizing an unceasing call of a mobile terminal across base stations in a cluster system, wherein, the realizing process thereof comprises two parts: one is the stage of establishing the call across base stations and the other is the stage of switching base stations by the mobile terminal. The stage for establishing the call across base stations consists of three processes, respectively the cluster controller process, the networking server process and the mobile terminal process. And whether base stations are switched is decided after the mobile terminal is put into the stage of switching base stations by the mobile terminal in the call process, The method can ensure unceasing call of the mobile terminal across the base stations, lower the difficulties of implementing the system and the mobile terminal, use a control channel to broadcast information of adjacent base stations for switching the mobile terminal across base stations without influencing the voice quality.

Description

(1) Technical field [0001] The invention relates to mobile terminal communication technology, in particular to a method for realizing uninterrupted communication between mobile terminals across base stations in an MPT1327 cluster mobile communication system. (2) Background technology [0002] As the MPT1327 digital signaling trunking mobile communication system (hereinafter referred to as the system) has been widely used in our country, the system is not limited to the operation mode of a single base station. After continuous improvement in recent years, the networking function of multi-system and multi-base station based on IP network has been realized now. However, multi-system networking only provides cross-system automatic roaming and calling functions. The mobile terminal cannot realize the function of uninterrupted voice between adjacent base stations similar to the public network. If the coverage area is too small, the current call will be interrupted, and the mobile...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W84/08H04W36/18H04W74/08
Inventor 孙鹏飞王孝姜传宝谭学治
Owner HARBIN HYTERA TECH CORP
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