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Communication method and communication system

A communication method and technology of a communication system, applied in transmission systems, baseband system components, transmission monitoring, etc., can solve problems such as simultaneous data transmission at the same frequency, interference with received signals, etc., and achieve good reception effects

Inactive Publication Date: 2016-04-27
SOUTH UNIVERSITY OF SCIENCE AND TECHNOLOGY OF CHINA
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the current cellular network, the commonly used frequency division duplex (FDD) and time division duplex (TDD) modes cannot realize simultaneous and co-frequency transmission of uplink and downlink data (that is, full duplex), because the signal sent by the base station will seriously interfere own received signal (i.e. self-interference)

Method used

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  • Communication method and communication system
  • Communication method and communication system
  • Communication method and communication system

Examples

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Embodiment Construction

[0045] Embodiments of embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, are only for explaining the embodiments of the present invention, and should not be construed as limiting the embodiments of the present invention.

[0046] The invention provides a communication method and a communication system.

[0047] see figure 1 , the communication method of the embodiment of the present invention includes the following steps:

[0048] S101: generate sending data;

[0049] S102: spread spectrum and up-convert the transmitted data to generate spread spectrum data;

[0050] S103: Perform digital-to-analog conversion on the spread spectrum data to generate a sending signal;

[0051] S104: transmit a s...

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PUM

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Abstract

The invention discloses a communication method. The communication method comprises following steps: generating sending data; carrying out spread spectrum and up-conversion to the sending data so as to generate spread spectrum data; carrying out digital-to-analog conversion to the spread spectrum data so as to generate sending signals; sending the sending signals; carrying out analog-digital conversion to the sending signals so as to generate elimination reference data; receiving external signals; carrying out radio-frequency interference processing to the external signals basing on the sending signals so as to reconstruct and convert the external signals into radio-frequency eliminated signals; carrying out analog-digital conversion to the radio-frequency eliminated signals so as to generate data to be eliminated; carrying out cancellation to the data to be eliminated and the elimination reference data so as to generate interference eliminated data; and carrying out despread spectrum to the interference eliminated data. The invention also discloses a communication system. The communication system carries out spread spectrum modulation and despread spectrum by using spread spectrum codes with orthogonality; better isolation between the unusable signals in the system comprising self-interference signals and the usable signals of the received external signals is realized, and the relatively good receiving effect is realized.

Description

technical field [0001] The present invention relates to the communication field, in particular to a communication method and a communication system. Background technique [0002] In the current cellular network, the commonly used frequency division duplex (FDD) and time division duplex (TDD) modes cannot realize simultaneous and co-frequency transmission of uplink and downlink data (that is, full duplex), because the signal sent by the base station will seriously interfere own received signal (i.e. self-interference). Contents of the invention [0003] The present invention aims to solve at least one of the technical problems existing in the prior art. [0004] The main purpose of the present invention is to provide a communication method aimed at eliminating useless signals including self-interference signals in a communication system. [0005] A communication method provided by the present invention includes: [0006] Generate sending data; [0007] Spreading and upc...

Claims

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Application Information

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IPC IPC(8): H04B17/345H04B17/318H04B1/7097H04B1/7107
CPCH04L25/08H04B1/7097H04B1/7107
Inventor 贡毅韩子栋
Owner SOUTH UNIVERSITY OF SCIENCE AND TECHNOLOGY OF CHINA