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Communication signal processing method and wireless communication system

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

Active Publication Date: 2021-05-11
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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Embodiment Construction

[0065]In order to make the purpose, technical solutions and advantages of the present application, the present application will be described in further detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are intended to explain the present application and is not intended to limit the present application.

[0066]Currently, when transmitting information modulation with forward error correction codes and multi-reformed cyclic shift spreading CCSK, as the number of carried changes increases, the decoding complexity of the receiving end will continue to improve. Therefore, limited to the restriction of the complexity of the receiving end, the generally modulated spreading code length will reach a certain limit, for example, the same length of the same length up to 64. Code. It can be seen that the length of the spreading code is limited by the existing technique of modulating the transmission informat...

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Abstract

The present application relates to a communication signal processing method, device, equipment, system and storage medium. The method includes: using a preset forward error correction code to perform forward error correction code processing on the transmitted information to obtain at least one codeword corresponding to the transmitted information and a codeword index corresponding to each codeword; The forward error correction code is a multi-ary low-density parity-check code; according to the code word index corresponding to each said code word, perform multi-ary system cyclic shift spread spectrum modulation on each said code word to determine The multi-ary cyclic shift spreading code corresponding to each said code word; the multi-ary cyclic shift spreading code is a spreading code of any length; the multi-ary cyclic shift corresponding to each said code word The spread spectrum code is shifted for radio frequency processing, and the obtained radio frequency signal is sent to the receiving end. By adopting the method, the length of the spread spectrum code obtained when modulating and sending information is not limited, that is, the system spread spectrum gain is not limited.

Description

Technical field[0001]The present application relates to the field of communication, and in particular, to a communication signal processing method, apparatus, 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 the encoding a bit data into a multi-bit sequence, called a "chip". Compared with the direct sequence spread spectrum, multi-modulated cyclic shift spread (CCSK, Cyclic Code-Shift Keying) is widely used in satellite communication due to its high spectral efficiency, demographicity and excellent performance performance. , Internet of Things communication, water sound communication, military communications and other communications areas. At the same time, in order to improve the anti-noise performance during the communication, the sender is typically modulated before the sending information is sent forward, and then the modulated signal is transmi...

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Application Information

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Patent Type & Authority Patents(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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