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A radio call system with digital-analog compatibility

A radio call and compatibility technology, applied in the field of communication, can solve problems such as long replacement cycle

Active Publication Date: 2021-03-19
SHISHI FTGMDC COMM EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the existing technology, due to the large inventory of analog fishery radio stations and the long replacement period, in the process of upgrading fishery radio stations from analog to digital mode, full attention must be paid to the compatibility of the old and new models, but how to realize the new The compatibility of fishery radio with traditional analog fishery radio is still an unresolved problem in this field

Method used

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  • A radio call system with digital-analog compatibility
  • A radio call system with digital-analog compatibility
  • A radio call system with digital-analog compatibility

Examples

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Embodiment Construction

[0022] The embodiment of the present invention provides a radio calling system with digital-analog compatibility, which is used to realize smooth upgrading of radio equipment from analog technology to digital technology.

[0023] In order to make the purpose, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the following The described embodiments are only some, not all, embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention belong to the protection scope of the present invention.

[0024] The terms "comprising" and "having" in the description and claims of the present invention and the above drawings, as well as any variations thereof, are i...

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Abstract

The invention discloses a call system with digital-analog compatibility for a radio station to achieve a smooth upgrade from analog technology to digital technology for radio station equipment. In thecall system for the radio station, calling station equipment is configured to generate DSC call signaling according to a voice communication mode supported by the calling station equipment, and sendthe DSC call signaling to called station equipment through the DSC channel. The called station equipment is configured to receive DSC call signaling, generate DSC reply signaling according to a voicecommunication mode supported by the called station equipment, and send the DSC call signaling to the calling station equipment through the DSC channel. The voice communication mode includes an analogvoice communication mode, and / or a digital voice communication mode. The DSC call signaling or the DSC reply signaling or both of them include a voice communication mode indication field. The voice communication mode indication field is used for indicating that the analog voice communication mode or the digital voice communication mode is adopted.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a radio calling system with digital-analog compatibility. Background technique [0002] In traditional fishery radio stations, digital selective call (Digital Selective Call, DSC) signaling is used. The DSC signaling can also be called digital selective call signaling. Signaling interaction between the calling station, when the calling station initiates a call, it will first send a DSC selective call message, when the called station receives the DSC selective call message, it needs to respond to the call of the calling station, by This switches to the designated call channel, and then conducts voice communication. [0003] Due to the limitations of the technical conditions at that time, the fishery radio station did not support digital voice communication, but adopted simple and practical FM (Frequency Modulation, FM) technology to realize the transmission of analog voice....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W4/06H04W76/10H04L5/00
CPCH04L5/0053H04W4/06H04W76/10
Inventor ๆž—่‹ฑ็ซ ๆž—่ดข่ฐ‹ๆŽๆ–‡็Œฎ้™ˆ็ƒฝ้‚ฑๅ—้›
Owner SHISHI FTGMDC COMM EQUIP