Pseudo-random sequence initial phase generation method and device and communication device

A pseudo-random sequence and initial phase technology, applied in the field of communication, can solve the problems of multi-computing resources, complex generation and consumption of the initial phase of the pseudo-random sequence, and meet application requirements, good cross-correlation characteristics, and low hardware implementation complexity degree of effect

Active Publication Date: 2020-12-01
CHINA MOBILE COMM LTD RES INST +1
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  • Claims
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Problems solved by technology

[0007] The purpose of the present disclosure is to provide a method, device and communication device for generating the initial phase of a pseudo-random sequence, so as to solve the problem in the prior art that the initial phase generation method of the pseudo-random sequence is relatively complicated and consumes more computing resources

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  • Pseudo-random sequence initial phase generation method and device and communication device
  • Pseudo-random sequence initial phase generation method and device and communication device
  • Pseudo-random sequence initial phase generation method and device and communication device

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Embodiment Construction

[0070] The main problem of related schemes is that the fixed initial phase set of reference signals is vulnerable to malicious attacks, resulting in a severe degradation of the DL transmission performance of the entire network.

[0071] For example, when the atmospheric ducting phenomenon does not occur, the attacker actively sends a dedicated RS for remote interference detection, and its initial phase is selected from the preset initial phase set. When other base stations in the network detect the RS, they may mistakenly judge that they are the interfering station of a certain base station, and then perform an interference fallback operation. When a large number of base stations in the network perform interference backoff operations, the downlink throughput of the entire network will be seriously reduced.

[0072] 5G NR systems generally use time-division duplexing, so they will also suffer from far-end interference problems. In order to solve the far-end interference proble...

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Abstract

The invention provides a pseudorandom sequence initial phase generation method and device, and a communication device. The method comprises the steps of obtaining a first parameter v1; generating a second parameter v2 according to the second pseudo-random sequence; generating an initial phase cinit of a first pseudo-random sequence according to the first parameter v1 and the second parameter v2; according to at least one embodiment of the invention, good cross-correlation characteristics can be obtained among different sequences while the network security is guaranteed, the hardware implementation complexity is relatively low, and the application requirements of a far-end interference management scene can be better met.

Description

technical field [0001] The present disclosure relates to the field of communication technologies, and in particular, to a method, device and communication equipment for generating an initial phase of a pseudo-random sequence. Background technique [0002] In inland areas at the turn of spring and summer, summer and autumn, or in coastal areas in winter, the phenomenon of surface ducting is prone to occur. When the atmospheric ducting phenomenon occurs, there will be a layer in the troposphere where temperature inversion or water vapor decreases sharply with height, called the ducting layer, and most radio wave radiation will be confined in the ducting layer for super-refractive propagation. Trans-horizon transmission allows radio signals to travel great distances with low path transmission loss. [0003] For TDD (Time Division Duplexing, Time Division Duplexing) systems (for example, 4G LTE systems or 5G NR systems), when the atmospheric waveguide phenomenon occurs, the dow...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L9/06
CPCH04L9/0662
Inventor 柯颋徐晓东吴丹张静文刘建军王启星刘光毅
Owner CHINA MOBILE COMM LTD RES INST
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