Method for transmitting short data in group set

Abstract

The method comprises: a) when speaking person send short data, the short data is sent to the network side of radio communication system by using the dedicated uplink channel of the speaking person; when the listener sends the short data, the short data is sent to the network side of radio communication system by using uplink channel of cluster group in his cell; b)after the network side of radio communication system receives the short data from the speaking person or listener, it broadcasts the short data.

Description

technical field [0001] The invention relates to the trunking group call technology in the communication system, in particular to a method for sending short data in the trunking group. Background technique [0002] Global System for Mobile Communications (GSM) is a standard launched by the European Committee for Standardization in 1992. It uses data communication technology and unified network standards to ensure communication quality and develop more new services for users. [0003] GSM-R, that is, the GSM system that serves railways, provides a common communication platform for railway staff, and can be used as a railway control system to meet the current and future needs of the railway network. It is a system facility designed, built and used directly for railway transportation production and railway information services. It mainly completes functions such as railway dispatching communication, station communication, emergency communication, section communication, official ...

AI Technical Summary

Problems solved by technology

[0006]However, at present, in the wireless communication system with group call function based on GSM technology, it is not possible to simultaneously transmit short data, that is, data Simultaneous interpretation with voice

As a result, it is impossible to implement services that require simultaneous interpretation of data and voice. The data here refers to short data. This short data is generally a fixed and very short message. The content of the message is pre-defined, and generally supports short messages within 256 pieces. Realized by encoding less than 8 bits (BIT), short data transmission delay requires short, generally within 500 milliseconds (ms)

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