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Wireless communication method and system for full-duplex walkie-talkie

A wireless communication system and wireless communication technology, applied in the field of walkie-talkie communication, can solve problems such as the inability to use walkie-talkies and the inability to meet the urgent needs of multi-party calls, and achieve the effect of avoiding self-excited interference

Active Publication Date: 2022-07-05
广州维德科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Under the digital direct connection, the traditional PDT walkie-talkie is in the half-duplex mode, that is, the data is transmitted through the TDMA (double time slot) multiple access method. Meet the urgent needs of simultaneous multi-party calls
Moreover, the current full-duplex communication scheme can basically only be applied to mobile phone communication, but cannot be applied to walkie-talkies.

Method used

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  • Wireless communication method and system for full-duplex walkie-talkie
  • Wireless communication method and system for full-duplex walkie-talkie

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Embodiment Construction

[0037] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0038] see figure 1 , an embodiment of the present invention provides a wireless communication method for a full-duplex walkie-talkie, including the following steps:

[0039] Step 1: Divide the frequency used for transmission into multiple time slots, and at this frequency, the first walkie-talkie determines whether there is an idle time slot in the current multiple time slots; if yes, then randomly select one of the idle slots to se...

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Abstract

The present invention provides a wireless communication method and system for a full-duplex walkie-talkie. The method includes the following steps: Step 1: Divide the frequency point used for transmission into multiple time slots, and determine the first walkie-talkie at the frequency point. Whether there are any idle time slots in the current multiple time slots; if yes, randomly select one of the idle slots to send voice data, and update the slot status at the same time; if not, refuse to send; Step 2, receive the voice data, and extract the voice data The receiving time slot number of the time slot where the data is located; at the same time, according to the receiving time slot number, determine whether the first walkie-talkie is the response group of the second walkie-talkie; if yes, it will decode and output the voice data; if not, it will not respond. The present invention can meet the requirement of using the walkie-talkie to conduct multi-party calls at the same time.

Description

technical field [0001] The invention relates to the technical field of walkie-talkie communication, in particular to a wireless communication system of a full-duplex walkie-talkie. Background technique [0002] A walkie-talkie is a wireless communication terminal device capable of point-to-multipoint communication, enabling multiple people to listen to the same person's speech at the same time. It has the characteristics of timely communication, one-stop response, economical and practical, low operating cost, no communication cost, etc. It also has functions such as group call broadcast, system call, and confidential call. When dealing with emergencies, its role in dispatching and commanding is irreplaceable by other communication tools. [0003] Under the digital pass-through, the traditional PDT standard walkie-talkies belong to the half-duplex mode, that is, the data is transmitted through the TDMA (dual time slot) multiple access method. This transmission method only al...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04Q5/24H04L5/14
CPCH04Q5/24H04L5/14H04L5/1423Y02D30/70
Inventor 高翔徐京海
Owner 广州维德科技有限公司