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A method for two-way transmission with the same frequency and full time slots

A two-way transmission and time-slot technology, applied in duplex signal operation, shaping network in transmitter/receiver, baseband system components, etc., can solve problems such as co-frequency interference

Active Publication Date: 2018-04-06
SHANGHAI LINGWO ELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to solve the problem of co-frequency interference in the prior art when using the same frequency point for bidirectional transmission of full time slots, and to provide a method for bidirectional transmission of co-frequency full time slots

Method used

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  • A method for two-way transmission with the same frequency and full time slots
  • A method for two-way transmission with the same frequency and full time slots
  • A method for two-way transmission with the same frequency and full time slots

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Embodiment Construction

[0026] An embodiment of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0027] Such as Figure 1 ~ Figure 3 As shown, the method embodiment of the same-frequency full-slot two-way transmission of the present invention, the method includes the following steps:

[0028] a) The master and slave devices start and run normally;

[0029] b) The master sends information at the working frequency, and the slave sends information at the working frequency according to the sending time of the master;

[0030] c) Each device simultaneously receives the information sent by the master and slave devices;

[0031] d) Each device eliminates the information sent by itself from the received information to obtain the information sent by the other device.

[0032] In order to better achieve the rapid extraction of channel information, the master device and the slave device can first search for adjacent clean frequency points and perform se...

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Abstract

The invention discloses a synchronous -frequency full-time-slot bidirectional transmission method. The method includes the following steps that a master device and a slave device are normally started to operate; the master device and the slave device send out information; the devices receive information sent out by the master device and the slave device; the devices eliminate information sent out by the corresponding device from the received information and thus obtain information sent out by the other device. According to the synchronous-frequency full-time-slot bidirectional transmission method, the information sent out by the corresponding device is eliminated from the information sent out and received by the master device and the slave device so as to obtain the information sent out by the other device, and thus full-time effective communication at the same frequency point of the two devices is achieved. By means of the synchronous-frequency full-time-slot bidirectional transmission method, the problem that synchronous-frequency interference exists when full-time-slot bidirectional transmission is conducted with the same frequency point is effectively solved.

Description

technical field [0001] The invention relates to a two-way transmission technology, in particular to a method for two-way transmission with the same frequency and full time slots. Background technique [0002] Duplex mode (duplex mode) refers to a communication mode in which both communicating parties can transmit messages in both directions at the same time. It can be divided into frequency division duplex mode, time division duplex mode and code division duplex mode. If one channel is used to send messages and another channel to receive messages, this duplex communication method is called frequency division duplex. If a message is sent in a certain time slot and received in another time slot, this duplex communication method is called time division duplex. Time-division duplexing is used in digital communication. In this way, only one channel needs to be occupied, thereby improving the utilization rate of spectrum. [0003] In the current transmission system, if the same...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L25/03H04L5/14
Inventor 汪园丽宋伯炜汪园香
Owner SHANGHAI LINGWO ELECTRONICS TECH
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