Wcdma Base Station Measurement Management Module Research And Implementation

On the third generation mobile communication, WCDMA is more used in the commercial fields and the one which is more mature technology.WCDMA technology has many advantages, but meanwhile there are some shotcomings such as multi-code interference, Far-Near problem and Anger effection. So the radio resource management in RNC is very important. Measurement in WCDMA system is at an important position, which provides strong support to Radio Resource Management. No measurement will not make radio resource management exist, at the same time there is not the WCDMA mobile communication system. Measurement is the premise of radio resource management; because access control, congestion control and power control can't be left without measurement.This paper is mainly on the reseach, analysis and implementation of measurement in WCDMA system.In Chapter I, firstly the development of mobile communication technology is introduced, and then the current three kinds of 3 G technologies, as well as their differences, are briefly introduced and lastly the several key technologies in current WCDMA technology and the WCDMA standard evolution are described. Chapter II outlines the theory of NodeB in WCDMA system, which includes the overall structure of the WCDMA system, a detailed description about RNC and NODEB in UTRAN, and a detailed introduction about NBAP Signaling in the interface of RNC-NODEB. The theory has laid a good technical background. The third chapter details the overall framework of commercial NodeB software system in WCDMA system, including introduction on the development environment, which is the vxwork embedded operating system, software architecture in NodeB system and detailed overview of the design principle. Chapter IV discusses the relationship between measurement and radio resource management, especially the mutual relationship between the specific power control and measurement, and then describes the design plan on the implementation of measurement management module in WCDMA NodeB in detail, which includes the realization principle, process design, the key data and algorithm design, and finally the main function modules are introduced. Chapter V concludes the thesis and the prospect.