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Method for realizing uninterrupted cross base station call of mobile terminal in normal mode

A mobile terminal and cross-base station technology, which is applied in the field of realizing uninterrupted calls between mobile terminals across base stations, can solve problems such as different operating frequencies, complex base station equipment, and voice quality degradation in overlapping coverage areas, and achieve fast cross-base station switching and base station equipment Simple, continuous call effect

Inactive Publication Date: 2011-04-20
HARBIN HYTERA TECH CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this mode of interconnecting conventional relay stations, the operating frequencies of adjacent base stations are not the same, and there is no standard to specify the method for corresponding mobile terminals to realize uninterrupted calls across base stations
Adjacent base stations adopt the same frequency mode, which will cause voice quality degradation in overlapping coverage areas, and due to the need for voice selection, a certain signal delay is caused
The base station equipment in the same-frequency and simulcast mode is complex, expensive, and has many failure points

Method used

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  • Method for realizing uninterrupted cross base station call of mobile terminal in normal mode
  • Method for realizing uninterrupted cross base station call of mobile terminal in normal mode
  • Method for realizing uninterrupted cross base station call of mobile terminal in normal mode

Examples

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Effect test

Embodiment 1

[0025] Example 1: Combining Figure 8 , Figure 9 , Figure 10 , a method of the present invention to realize uninterrupted communication between mobile terminals across base stations in conventional mode: it is realized by fast cross-base station switching of mobile terminals, and the fast cross-base station switching process of mobile terminals is composed of two parts, one part is cross-base station calling The other part is the phase of establishing a base station by the mobile terminal; the implementation process of the cross-base station call establishment phase is: the mobile terminal initiates a call request, and after the base station receives the cross-base call request, it controls the base station participating in the call to the speaker. The voice is forwarded; the implementation process of the base station switching stage of the mobile terminal in the call process is: after the mobile terminal enters the call process, the mobile terminal needs to constantly chec...

Embodiment 2

[0029] Embodiment 2: the technical points of the present invention are as follows: the mobile terminal that works under the regular mode of different frequency half-duplex, the method for switching the base station during the conversation; The mobile terminal independently judges whether the signal quality of the base station meets the starting condition of the handover according to the preset starting condition of the handover during the call; the mobile terminal meeting the starting condition of the handover follows the preset frequency table and according to the preferred base station Scanning is performed sequentially to find base stations that meet the handover conditions; mobile terminals that meet the handover conditions independently perform base station handover.

Embodiment 3

[0030] Example 3: Binding Figure 1-Figure 10 , the frequency planning of base stations and mobile terminals: the transmission frequency and reception frequency of each base station in the co-frequency simulcast mode are the same respectively, so the mobile terminal only needs to use one set of frequencies; The frequency of the relay station of each base station is stored in advance, so there is a problem of frequency planning. According to the communication coverage requirements of cities, suburbs and expressways, the communication network topology can be divided into the following two types:

[0031] 1. Expressway chain network

[0032] like figure 1 , taking the chain network highway as an example, each network relay station adopts the frequency multiplexing method, and only needs to use 3 groups of frequencies to complete the coverage of the chain network; correspondingly, the terminal only needs to write at least 3 groups of frequency information That's it.

[0033] 2...

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Abstract

The invention provides a method for realizing unineterrupted cross base station call of a mobile terminal in a normal pattern without the participation of a base station in an exchanging process. The method is realized by rapid cross base station switch of the mobile terminal, and the rapid cross base station switch process of the mobile terminal comprises two parts: one part is a cross base station calling establishment stage, and the other part is a base station switch stage of the mobile terminal; and the starting condition of the base station switch is that the mobile terminal is utilized to detect the current call base station signal quality to serve as a judging condition, if the current conversation base station signal quality is lower than the threshold value set by the mobile terminal, adjacent base station scanning function is started, and if the switch condition is satisfied, the mobile terminal switches the base station. The method has the advantages that the base station is autonomously switched in the call process, continuous call is maintained, the realizing difficulty of the base station and the normal mobile terminal is lowered, rapid cross base station switch of a normal mobile terminal is realized in a half-duplex pattern.

Description

(1) Technical field [0001] The invention relates to communication technology, specifically a method for realizing uninterrupted communication between mobile terminals across base stations in a conventional mode. (2) Background technology [0002] With the development of private network communication, the conventional mode is widely used in public security, port, forestry, railway and other industries due to its fast networking and convenient use; with the enhancement of the requirements for large-scale coverage, various link methods The technology of interconnecting the relay stations of the base station and expanding the coverage area has been greatly developed, and the interconnection and intercommunication of mobile terminals under different relay stations have been realized. However, the conventional networking of multiple base stations only provides the function of cross-base station calls. The mobile terminal cannot realize the function of inter-base station voice unin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W36/08H04W36/30H04W48/16
Inventor 姜传宝孙鹏飞谭学治王孝
Owner HARBIN HYTERA TECH CORP
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