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Henan Unicom WCDMA 2G/3G Interoperability Disquisition

Author: LiZhiGuo
Tutor: ZhangYuYan
School: Beijing University of Posts and Telecommunications
Course: Electronics and Communication Engineering
Keywords: WCDMA 2/3G Interoperability Research
CLC: TN929.533
Type: Master's thesis
Year: 2010
Downloads: 37
Quote: 0
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Abstract


The thesis mainly discusses the WCDMA network is concerned 2G/3G interoperability research topic, for the 2G/3G CS operations and PS business re-election further analysis.I through the different scenarios different parameters set of experiments.Obtain first-hand analysis cases, Switching and re-election influence factors of delay and business thorough analysis.A set of parameters is suitable for the current configuration, the test for each user perception, switching events, the basic purpose of study reached.This article mainly from the following aspects:1.Background:Early in the WCDMA network construction, Imperfect coverage is one of the major problems.In areas covered the imperfect 3G network on 2G provide voice and data of uninterrupted service is particularly important.2.3G/2G switching principleIntroduced the Vision system of residential re-election principle,3G to 2G CS domain switching principle and 3G to 2G PS domain switching principle. For implementing 2/3G interoperability research provides theory basis.3.Zhengzhou WCDMA network statusZhengzhou 3G network currently covers only city, county and part of the road, Within the city still exist some network empty and weak area. Indoor site is difference the 2G sites. Through 2/3G interoperability, Find a set of parameters for now, Improve the quality of 3G network covering ande quality.4.2/3G interoperability research methods Discusses the scene for interoperability and test points of test, various solutions of the research content and validation parameters when the attention, verify the effect of interoperability listed references.5.Actual scene strategy research pointsAt present zhengzhou WCDMA network, Select the outdoor 3G continuous area covering weak scene, outdoor 3G cover edge, indoor 3G cover is empty and indoor signal fast fading, and for the parameters of the network.6.Zhengzhou 2G/3G Switch test researchTo cut in various types of parameter optimization and adjustment,the scene for all kinds of actual DT test and verify the effect. All kinds of switch and re-election is normal, user perception is preferably.7.For users perception of actual interoperabilityIn operating normally, for interoperability of user perception could affect the index for further analysis, for CS domain and PS domain switching time of testing and analysis, for the next interoperability optimization problem of delay in the reference side.8.At different stages of 3G interoperability strategiesAccording to the 2/3G interoperability in the network analysis and study of the different stages of interoperability strategy:Mainly based on the arrangement of covering the switch. After the mature network construction of main consideration is based on the load and business.9.The next research directionCurrently the main topic of interoperability and re-election is studied, But as the network of complexity and 3G network operators interworking, Research topics will become increasingly complex, this for us to further study a new challenge.Through the study of this project, clear the nets each scene 2/3G interoperable differential Settings,.Has the meaning of promotion entire network.

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CLC: > Industrial Technology > Radio electronics, telecommunications technology > Wireless communications > Mobile Communications > Cellular mobile communications systems (mobile phones, mobile phone handsets ) > Code Division Multiple Access (CDMA) mobile communication
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