PHS Network Optimization Technology Research And Implementation

Under the present condition that traditional telephone gradually depressing, the appearance of wireless city-phone (PHS) brings operator a turning point. But due to their characteristics as micro-cellular technology , TDMA / TDD technique , high-frequency band,the small radiation power of station and PS, result in a number of inherent defects: poor indoor coverage, frequent switching, easily drop call. For PHS surviving and developing in the competitive telecommunications market, a scientific network optimization is critical.The initial focus of PHS network maintenance has shift from coverage to optimization, and the emphasis of optimization would take up from reducing the bad feeling which caused by these inherent defects. With user's complaints,NMS data , drive testing and other comprehensive information, we work on three major areas of network optimization :coverage ,synchronization, interference. Through analyzing NMS data (handoff and dropped call and so on), conduct a comprehensive PHS network optimization. While upgrading the quality of network ,let the Netcom Corporation and users have a win-win results.This article introduces the PHS technical characteristics, with the PHS network features of Xinxiang in Henan , to find out existence problem of the network from actual work. In support of optimization theories listing typical cases, while enriching optimization theories in analzing and soluting the cases. During this period in addition to the conventional optimization , there are also special or various optimization programmes: coverage of the base station towers in rural areas, installing station where no CSC area, supplement uses of station stretcher and directly repeater station.Through a year of meticulous optimization , the quality and performance indicators of Xinxiang PHS network have been greatly improved, and the Composite Index has risen to the top three in the province from the ends of the rank. At the same time , the subscriber feel the network better a lot , while optimization contributing greatly to company's benifit.