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Multichannel wireless full-duplex communication method and system

A communication method and full-duplex technology, applied in the field of communication, can solve the problems of unable to meet urgent needs, unable to optimize the design of full-duplex communication, only supporting one-to-one communication, etc.

Inactive Publication Date: 2019-04-05
SHANGHAI NAYA INTELLIGENT TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It has been unable to meet the urgent needs of multi-party calls at the same time
Although there are currently many solutions supporting full-duplex communication, each solution has its own defects. For example, those using analog or digital walkie-talkie technology often only support one-to-one communication; those using Bluetooth, WIFI, and 2.4G modules are due to It is impossible to optimize the design for full-duplex communication at the wireless system level, resulting in problems such as use distance and network coverage

Method used

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  • Multichannel wireless full-duplex communication method and system
  • Multichannel wireless full-duplex communication method and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Please refer to figure 1 , figure 1 A schematic flow diagram of a multi-channel full-duplex communication method provided by an embodiment of the present invention; refer to figure 1 , the method includes:

[0036] S100: The communication terminal selects a communication time slot according to the time slot allocation strategy and sends voice data through the communication time slot

[0037] Specifically, the system allocates one or more communication time slots for each communication terminal. When a communication terminal needs to send voice, it first selects its corresponding communication time slot according to the time slot allocation strategy, and sends voice data through this communication time slot. , different communication terminals can transmit voice data simultaneously through different communication time slots. Wherein, the number of communication time slots is determined according to the transmission bandwidth and the actual number of communication term...

Embodiment 2

[0044] This embodiment is intended to implement local relay. Specifically, the relay station receives the voice data sent by the local communication terminal, that is, the communication terminal in the channel through the corresponding communication time slot, and then sends the received voice data out through the relay time slot. Since each communication terminal receives the voice data forwarded by the relay station, the voice data received by each communication terminal sending voice data contains the voice data sent by itself, that is, there is an echo. Therefore, in order to eliminate the echo, the communication terminal can record the voice data sent by itself in the mode of both sending voice data and receiving voice data, and then before playing the received voice data forwarded by the relay station, first record the voice data recorded Compared with the received voice data, the recorded voice data, that is, the voice data sent by itself, is eliminated from the receive...

Embodiment approach

[0046] For the former, the system has a control center: further, if the control center also has a relay function, it is not necessary to set up a separate relay station at this time, but use the control center to perform related operations on the relay station. At this time, the control center occupies both the system time slot and the relay time slot. If the control center does not have the relay function, the control center occupies the system time slot, and the relay station occupies the relay time slot. In addition, if the control center does not have the function of wireless transmission and reception, the relay station occupies both the system time slot and the relay time slot, and the control center can establish a connection with the relay station through the IP network to obtain the right to use the system time slot.

[0047]In this embodiment, when a new communication terminal joins the system, the newly added communication terminal first synchronizes with the contro...

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PUM

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Abstract

The invention discloses a multichannel full-duplex communication method. The method comprises steps: a communication terminal selects a communication slot according to a slot allocation strategy and transmits voice data through the communication slot; a relay station receives the voice data transmitted by each communication terminal through the corresponding communication slot; and the relay station transmits the voice data through a relay slot. According to the multichannel full-duplex communication method disclosed in the invention, one-to-one communication and multi-party communication aresupported, simultaneous listening and speaking between multiple parties can be effectively realized, and under support of the relay station, a wider area of wireless network coverage can be realized.The invention also discloses a multichannel full-duplex communication system, which also has the above beneficial effects.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a multi-channel wireless full-duplex communication method; and also relates to a multi-channel wireless full-duplex communication system. Background technique [0002] A walkie-talkie is a wireless communication terminal device capable of point-to-multipoint communication, which enables multiple people to listen to the same person's speech at the same time. It has the characteristics of timely communication, one response to all calls, economical and practical, low operating cost, and no communication costs. It also has functions such as group call broadcast, system call, and confidential call. When dealing with emergencies, its role in dispatching and commanding cannot be replaced by other communication tools. Existing FM walkie-talkies and digital walkie-talkies allow only one person to speak at the same time, while others answer. It has been unable to meet the urgent ne...

Claims

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Application Information

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IPC IPC(8): H04L5/14H04B7/026H04B7/155
CPCH04B7/026H04B7/15507H04L5/1469
Inventor 方桂成
Owner SHANGHAI NAYA INTELLIGENT TECH CO LTD
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