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Method and device for confirming the disturbance code relativity in the code division multi-address system

A code division multiple access and synchronous code division multiple access technology, which is applied in the field of determining the correlation of scrambling codes, can solve the problems of not providing a mature correlation evaluation method between code words, and achieve the effect of small amount of calculation and low complexity

Inactive Publication Date: 2007-09-12
ZTE CORP
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Problems solved by technology

[0003] The purpose of the present invention is to provide a method and device for determining the correlation of scrambling codes in a code division multiple access system, to solve the technical problem that the prior art does not provide a mature method for evaluating the correlation between code words

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  • Method and device for confirming the disturbance code relativity in the code division multi-address system
  • Method and device for confirming the disturbance code relativity in the code division multi-address system
  • Method and device for confirming the disturbance code relativity in the code division multi-address system

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Embodiment Construction

[0027] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] The invention mainly provides a TD-SCDMA system scrambling code correlation evaluation method. After analyzing the correlation results of all codes in the TD-SCDMA mobile communication system to the codewords of all spread spectrum composite scrambling codes, the cross-correlation evaluation value of all code pairs is given, which provides a basis for the distribution of scrambling codes in TD-SCDMA system networking. Numerical basis, thereby reducing the interference between cells. The present invention can also be used in all CDMA systems in the field of mobile communication, especially TDD-CDMA (Time Division Duplex Code Division Multiple Access) systems and all SCDMA (Synchronous Code Division Multiple Access) systems.

[0029] In the TD...

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Abstract

The invention supplies a method to determine harass code relevancy in the code division multiple access (CDMA) system and its equipment, among, the method includes: calculates the compound wide frequency harass code of each harass code; calculates the circular correlation of the compound wide frequency harass in two harass code, obtains 961 entries 16 values long related sequences; according to maximum value appearance position in the states correlation sequence, calculates the average maximum value of the 961 entries correlation sequence; in view of each related sequence in first five and the latter four elements, computes the mean value to obtain the element average value, calculates the mean value of the 961 entries element average value to obtain the sum element average value; The average maximum value and the sum element average value carry on weighting addition, obtains the two code relevant correlative value. The amount of invention calculation is small, only need one-off calculates and the preservates, the invention is one kind the symbol mutually disturbs with between the network in and various plotsactually tallies, complex is small, also the convenient measuremethod.

Description

technical field [0001] The invention relates to a scrambling code resource allocation technology in the field of mobile communication, in particular to a method and device for determining the correlation of scrambling codes in a code division multiple access system. Background technique [0002] In the TD-SCDMA (Time Division Synchronous Code Division Multiple Access) system, different cells have different code group configurations, and the cell code group configuration refers to the specific code groups of those cells (the cell code groups in the TD-SCDMA system Frequency code, downlink pilot code, basic Midamble (middle training sequence) code and scrambling code), different adjacent cells will be configured with different code groups. Since the data received by the receiving end contains not only the code group data of the own cell, but also the code group data of other cells, this introduces interference from adjacent cells, and the interference between different code wo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B1/707H03M13/01H04J13/16
Inventor 李萍芮华
Owner ZTE CORP
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