Voice and data synchronous transmission method at DMR (digital mobile radio) terminal

A voice data and terminal technology, applied in the field of DMR terminal voice data simultaneous interpretation, can solve the problem of channel waste and achieve the effect of improving channel utilization

Inactive Publication Date: 2012-01-04
KIRISUN COMM
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Aiming at the above-mentioned shortcoming of channel waste caused by DMR communication terminals in the prior art when transmitting voice superframes, the present invention provides a new method for simu...

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  • Voice and data synchronous transmission method at DMR (digital mobile radio) terminal
  • Voice and data synchronous transmission method at DMR (digital mobile radio) terminal
  • Voice and data synchronous transmission method at DMR (digital mobile radio) terminal

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Embodiment Construction

[0012] This embodiment is a preferred implementation mode of the present invention, and other principles and basic structures that are the same or similar to this embodiment are within the protection scope of the present invention.

[0013] The DMR protocol stipulates that a DMR terminal transmits a superframe every 360ms during a voice call, please refer to the attached figure 1 And attached figure 2 , each super frame includes ABCDEF six voice data frames, and the middle 48BIT of the conventional F frame transmits invalid data (please refer to the attached image 3 ), that is, the invalid data area. In the present invention, the 48-bit invalid data area in the middle of the F frame of each superframe is used to transmit data or control information, so as to achieve the effect of voice data simultaneous interpretation. The data or control information in the present invention may be information such as GPS information, key information, or other control information of the DM...

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Abstract

The invention discloses a voice and data synchronous transmission method at a DMR (digital mobile radio) terminal. In the method, when the DMR communication terminal transmits voice, one super-frame is sent every 360MS, wherein, 48-bit in the middle of the F-frame of each super-frame transfers invalid data (namely an invalid data area); and the 48-bit invalid data area in the middle of the F-frame of each super-frame is used for transferring data or controlling information. The voice and data synchronous transmission method has the beneficial effects that the 48-bit invalid data area of the F-frame is used for transferring the data or controlling the information, thus achieving the voice and data synchronous transmission effect, saving channels which are originally used for transferring the data and improving utilization ratio of the channels.

Description

[0001] technical field [0002] The invention discloses a voice data simultaneous transmission method, in particular a DMR terminal voice data simultaneous transmission method. Background technique [0003] DMR is the abbreviation of Digital Mobile Radio, which is a protocol standard used by European digital walkie-talkies. The DMR protocol stipulates that when a communication terminal transmits a voice superframe, each voice superframe includes an ABCDEF voice data frame, and the middle of the F frame is 48BIT invalid data , transmission in this way will cause a waste of channels. Contents of the invention [0004] In view of the above-mentioned shortcoming of channel waste caused by DMR communication terminals in the prior art when transmitting voice superframes, the present invention provides a new method for simultaneous voice data transmission of DMR terminals, which utilizes the 48bit invalid data area in the middle of the F frame Transfer data or control in...

Claims

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Application Information

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IPC IPC(8): H04Q5/24H04M11/06
Inventor 付文良赵蕊
Owner KIRISUN COMM
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