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Method, equipment and system for realizing deviation correction to access channel leading signal

A technology for accessing channels and preamble signals, applied in the communication field, can solve problems such as unfavorable verification and testing, most resource consumption, long feedback, etc., and achieve the effect of reducing design complexity and simplifying data flow

Active Publication Date: 2010-11-10
HONOR DEVICE CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

After analysis, the inventor found that there are at least the following problems in the above-mentioned prior art: a large amount of resources are required for implementation, and the cost is too high
In addition, since the output of the interpolation filter is processed in parallel with 16 signatures and two antennas, there will be multiple storage units for the Y value, and there must be 32 sets of AFC calculations. Multiplier resources, RAM resources, and register resources are existing The most resource-intensive part of the technology to implement
After analysis, the inventor found that the above-mentioned prior art still has the following problems: too many branches in the data flow, long feedback, resulting in a complex algorithm structure, which is not conducive to verification and testing
Due to the addition of AFC calculation and deviation correction branches, there is an extra section of data flow, which increases the complexity in terms of design reliability and verification coverage, and brings a lot of workload and risks.

Method used

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  • Method, equipment and system for realizing deviation correction to access channel leading signal
  • Method, equipment and system for realizing deviation correction to access channel leading signal
  • Method, equipment and system for realizing deviation correction to access channel leading signal

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Abstract

The invention discloses a realizing method of cut-away the leading signal which is jointed into channel, the method includes: setting at least one cut-away parameter values, and interpolating and filtering the leading signal which is jointed into channel, cutting away the signal which is jointed into channel based on said cut-away parameter values. The invention discloses a type of base state andcommunication system at the same time. Adopting this invention can decrease occupation of resource and cost of chip, simplifies the data flow, decreases complexity, increases verification and test.

Description

Implementation method, device and system for deviation correction of access channel preamble signal technical field The present invention relates to the technical field of communication, and in particular to a method, device and system for realizing deviation correction of a preamble signal of an access channel. Background technique The access channel in the WCDMA (Wide-bandCodeDivisionMultipleAccess, wideband code division multiple access system) physical channel is used as a carrier for the terminal equipment and the base station to realize the access process before connection, and its access performance is very important. In the actual environment, due to various reasons, there may be a frequency offset between the mobile station and the base station: the mobile station can lock the carrier frequency of the base station through the AFC (Automatic Frequency Control, automatic frequency control) algorithm. According to the requirements of the 3GPP protocol, the maximum err...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L27/22H04L27/38
Inventor 徐燕王菁
Owner HONOR DEVICE CO LTD