Scrambling code sequence generation method, device and system for scrambling or descrambling

Abstract

The embodiment of the invention provides a scrambling code sequence generation method, a device and a system for scrambling or descrambling. The method comprises the following steps: obtaining the initial sequence of a first pseudo-random sequence; obtaining a self-scrambled sequence of a second pseudo-random sequence after self-scrambling the initial sequence of the second pseudo-random sequence, multiplying the initial sequence of the first pseudo-random sequence with a preset M matrix, and generating the self-scrambled sequence of the first pseudo-random sequence; and carrying out XOR operation on the self-scrambled sequence of the first pseudo-random sequence and the self-scrambled sequence of the second pseudo-random sequence according to bits and obtaining a scrambling code sequencefor scrambling or descrambling. The embodiment can simplify the generation process of the scrambling code sequence, shorten the generation time of the scrambling code sequence, further shorten the time for scrambling or descrambling transmitted data, accelerate the scrambling or descrambling processing speed of a wireless communication system and save system resources.

Description

technical field [0001] Embodiments of the present invention relate to the field of communication technologies, and in particular to a method, device and system for generating a scrambling code sequence for scrambling or descrambling. Background technique [0002] With the development of science and technology, wireless communication technology has been widely used, and users can obtain effective information brought by wireless communication systems at any place and any time. However, if no security protection measures are taken for the transmission data in the wireless communication system, the third party can easily obtain the data information received by the current user. Therefore, effective protection of the transmission data is a prerequisite for wireless communication applications. How to protect the transmission Effective data protection is extremely important. One way is to use scrambling technology to protect the transmission data at the sending end, and descramble...

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Problems solved by technology

[0004] In the process of implementing the present invention, the inventors found that there are at least the following problems in the prior art: the scrambling code sequence generation process for scrambling or descrambling is complex and time-prolonged, resulting in slow processing speed of scrambling or descrambling in wireless communication systems, waste system resources

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