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ZC sequence generation method and device

A sequence and iterative algorithm technology, applied in the field of ZC sequence generation, can solve problems such as long calculation time

Active Publication Date: 2018-05-25
SANECHIPS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of this, the embodiment of the present invention expects to provide a method and device for generating a ZC sequence to solve the technical problem of long calculation time when generating a ZC sequence in the prior art, shorten the time for generating a ZC sequence, and improve the ZC sequence. Sequence Generation Efficiency

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  • ZC sequence generation method and device

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Embodiment Construction

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention.

[0032] Embodiments of the present invention provide a method for generating a ZC sequence, which can be applied to a vector digital processor (DSP, Digital Signal Processor) commonly used in baseband signal processing at the base station side in an LTE system;

[0033] figure 1 It is a schematic flow chart of the method for generating the ZC sequence in the embodiment of the present invention, such as figure 1 As shown, the method includes:

[0034] S101: Determine the initial address vector and the initial address increment vector of the ZC sequence to be generated;

[0035] Starting from the definition of the ZC sequence, the definition of the ZC sequence is expressed by the following formula:

[0036]

[0037] Among them, N represents the length of the ZC sequence, u re...

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Abstract

The embodiment of the invention discloses a ZC sequence generation method. The method comprises the steps of: determining the initial address vector and the initial address increment vector of a ZC sequence to be generated; according to a current address vector, a current address increment vector and the pre-set address increment stepping, generating the current vector, the next address vector andthe next address increment vector of the ZC sequence to be generated by adopting a pre-set vector iteration algorithm; and, when the current iteration time is equal to the pre-set iteration time I, obtaining the ZC sequence to be generated according to elements of the generated various vectors of the ZC sequence to be generated. The embodiment of the invention further discloses a ZC sequence generation device.

Description

technical field [0001] The invention relates to the field of digital signal processing, in particular to a method and device for generating a ZC sequence. Background technique [0002] At present, the Zadoff-Chu (ZC) sequence is widely used in the Long Term Evolution (LTE, Long Term Evolution) system because of its good autocorrelation and cross-correlation, for example, the primary synchronization signal in the LTE downlink, the uplink The demodulation signal and sounding signal in , and the preamble of the random access channel. [0003] In the prior art, signal processing equipment often adopts a look-up table method to store the ZC sequence in the signal processing equipment and read it again when it is used. However, there are many kinds of ZC sequences in the LTE system. If all of them are stored, it will consume a lot of energy. Therefore, it is necessary to calculate the ZC sequence in real time. However, the existing method for calculating the ZC sequence in real t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04J13/14H04J13/00
CPCH04J13/00H04J13/14H04J13/0062
Inventor 王辉
Owner SANECHIPS TECH CO LTD
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