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Method for reducing reception interference in CDMA system

A technology for receiving interference and code division multiple access, which is applied in code division multiplexing systems, transmission systems, multiplexing communications, etc., and can solve problems such as despreading errors

Active Publication Date: 2010-01-27
XUANPU INDUSTRY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be seen that when the amplitude of B is greater than 4 times that of A, there will be an inversion and a despreading error will occur.

Method used

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  • Method for reducing reception interference in CDMA system
  • Method for reducing reception interference in CDMA system
  • Method for reducing reception interference in CDMA system

Examples

Experimental program
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Embodiment Construction

[0069] pass below Figure 5 ~ Figure 7 , to introduce a specific embodiment of the present invention in detail, so as to further understand the content of the present invention.

[0070] Such as Figure 5 As shown, the present invention provides a method for reducing reception interference in a code division multiple access system, which includes the following steps:

[0071] Step 1. Initialize the array and parameters required in the calculation process:

[0072] Step 1.1, initialize an array C with a length of G, which is used to store the signal to be despread received by the receiver, and G is the length of the signal to be despread;

[0073] Step 1.2, initializing an array E with a length of L, the array E is used to store the local code sequence, and L is the length of the local code sequence;

[0074] Step 1.3, initialize variables Option, S, H 1 、H 2 、D 1 、D 2 , q, Result_R and Result_Q;

[0075] Step 1.3.1, set the value of Option to 1 or 2 to select whether t...

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Abstract

The invention provides a device to reduce receive interference in CDMA system. Wherein, according to distribution information of interfering signal in sequence, setting weight value sequence to weighting treat signal sequence or local code sequence and normalize the opposite calculation result. This invention is simple to realize, and makes full use of interference distribution information and flexible set to weight to achieve final purpose.

Description

technical field [0001] The present invention relates to a method applied to a wireless communication system, in particular to a method for reducing interference of a user terminal device or a receiving device of a base station in a Code-Division Multiple Access (CDMA) mobile communication system. Background technique [0002] With the development of the times, people's requirements for communication, including requirements for communication quality and service types, are getting higher and higher. The third generation (3G) mobile communication system has been developed to meet this requirement. It takes global general use and system integration as the basic starting point, and tries to establish a global mobile integrated service digital network, integrating various mobile communication systems such as cellular, cordless, paging, trunking, mobile data, mobile satellite, air and sea. It provides a variety of voice and non-voice services that are compatible with the services ...

Claims

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Application Information

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IPC IPC(8): H04B1/707H04J13/04H04B1/7097
Inventor 师延山
Owner XUANPU INDUSTRY CO LTD
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