Communication signal processing method and wireless communication system

A processing method and communication signal technology, applied in the field of communication, can solve problems such as the limitation of the length of the spreading code

Active Publication Date: 2020-12-18
深圳市华智芯联科技有限公司
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  • Application Information

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Problems solved by technology

It can be seen that the existing technology has the problem that the length of the spreading code is limited when modulating and sending information

Method used

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  • Communication signal processing method and wireless communication system
  • Communication signal processing method and wireless communication system
  • Communication signal processing method and wireless communication system

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[0065] In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not intended to limit the present application.

[0066] At present, when the forward error correction code and multi-ary modulation cyclic shift spread spectrum CCSK are used to modulate the transmitted information, the decoding complexity of the receiving end will continue to increase with the continuous increase of the modulation number. Therefore, limited by the decoding complexity of the receiving end, the length of the modulated spreading code usually reaches a certain limit, for example, the highest is usually a spreading code of the same length in base 64. It can be seen that, in the prior art, there is a problem ...

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Abstract

The invention relates to a communication signal processing method, device, equipment and system and a storage medium. The method comprises the following steps: carrying out forward error correction code processing on sent information by adopting a preset forward error correction code to obtain at least one code word corresponding to the sent information and a code word index corresponding to eachcode word, wherein the forward error correction code is a multi-system low-density parity check code; according to the code word index corresponding to each code word, performing multi-system cyclic shift spread spectrum modulation on each code word, and determining a multi-system cyclic shift spread spectrum code corresponding to each code word, wherein the multi-system cyclic shift spreading code is a spreading code with any length; and performing radio frequency processing on the multi-system cyclic shift spreading code corresponding to each code word, and sending an obtained radio frequency signal to a receiving end. By adopting the method, the length of the spreading code obtained when the information is modulated and sent is not limited, i.e., the spreading gain of the system is notlimited.

Description

technical field [0001] The present application relates to the technical field of communication, and in particular to a communication signal processing method, device, device, system and storage medium. Background technique [0002] In the field of communication technology, Direct Sequence Spread Spectrum (DSSS, Direct Sequence Spread Spectrum) refers to encoding one-bit data into a multi-bit sequence, which is called a "chip". Compared with direct sequence spread spectrum, multi-ary modulation cyclic shift spread spectrum (CCSK, Cyclic Code-Shift Keying) is widely used in satellite communication because of its high spectral efficiency and excellent demodulation signal-to-noise ratio. , Internet of things communication, underwater acoustic communication, military communication and other communication fields. At the same time, in order to improve the anti-noise performance in the communication process, usually before sending information, the sending end will modulate the send...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/00H04B1/69
CPCH04B1/69H04L1/0007H04L1/0057
Inventor 龙必起
Owner 深圳市华智芯联科技有限公司
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