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Method of generating pseudo-random sequence in LTE system

A pseudo-random sequence and sequence technology, applied in the field of broadband mobile communication, can solve the problem of long time consuming for scrambling code generation

Active Publication Date: 2016-03-09
SOUTHEAST UNIV
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  • Claims
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Problems solved by technology

[0004] Purpose of the invention: In order to overcome the deficiencies in the prior art, the present invention provides a method for generating pseudo-random sequences in the LTE system, which solves the problem that the generation of scrambling codes in the communication system takes too long

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  • Method of generating pseudo-random sequence in LTE system
  • Method of generating pseudo-random sequence in LTE system
  • Method of generating pseudo-random sequence in LTE system

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[0053] Below in conjunction with accompanying drawing and specific embodiment, further illustrate the present invention, should be understood that these examples are only for illustrating the present invention and are not intended to limit the scope of the present invention, after having read the present invention, those skilled in the art will understand various aspects of the present invention All modifications of the valence form fall within the scope defined by the appended claims of the present application.

[0054] A method for generating a pseudo-random sequence in an LTE system, such as Figure 1-5 As shown, the initial sequence of the first pseudo-random sequence and the initial sequence of the second pseudo-random sequence are obtained according to the communication information; the phase mask sequence operation is performed on the first pseudo-random sequence to obtain a self-scrambling sequence; the second pseudo-random sequence is performed The phase mask sequence...

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Abstract

The invention discloses a method of generating a pseudo-random sequence in an LTE system. The method comprises the steps of obtaining an initial sequence of a first pseudo-random sequence according to communication information of the LTE system; obtaining an initial sequence of a second pseudo-random sequence; performing phase mask sequence operation of the first pseudo-random sequence to obtain a self-scrambling sequence; performing phase mask sequence operation of the second pseudo-random sequence to obtain a self-scrambling sequence; and performing XOR operation of the two self-scrambling sequences to finally obtain a scrambling sequence for scrambling or descrambling. The invention can effectively improve the generation time of a scramble code without increasing the computational complexity, and the overall performance of a communication system is improved.

Description

technical field [0001] The invention relates to a method for scrambling or descrambling using a scrambling code sequence, belonging to the technical field of broadband mobile communication. Background technique [0002] With the development of modern technology, broadband mobile communication systems have been widely used, and people can communicate anytime and anywhere. However, if the data is not encrypted in the communication system, user data is easily stolen by a third party, so the encryption operation is very important. At present, a relatively mature encryption operation is to scramble data through a scrambling code sequence at the sending end, and use the same scrambling code sequence to descramble the data at the receiving end. This effectively prevents data from being accessed by third parties. [0003] Usually, the generation method of the scrambling code sequence takes a relatively long time, which obviously does not meet the requirements of high-speed communi...

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Application Information

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IPC IPC(8): H04L9/06
CPCH04L9/0662
Inventor 巴特尔朱峰洪李高爱勇贾子昱高西奇黄清
Owner SOUTHEAST UNIV
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