The Research On Engineering Solutions Of TD-SCDMA Indoor System

According to the performing experience of oversea 3G network, the data services of 3G network happen mostly indoor.The coverage and quality of indoor systems will have a straight effect on the performance of 3G network. Frankly, the construction of indoor systems is the key mission of the whole 3G network.As the first homegrown international telecommunication standard, born only ten and several yeays ago, outfield test and building of testing network just begun couples of years ago, TD-SCDMA is seriously lacking of the experience of large-scale network contruction.In the other side, because of its technological characterics, we can not just directly copy the relevant experiences of the 2G or other 3G technologies.Accordingly, in order to provide some referable experience for the coming massive TD-SCDMA network construction, it is necessary to find out the effective solutions for the TD-SCDMA indoor system through deep research,and that is what we aim at this topic.By the way of theoretical analysis, system simulation and site testing, we work deeply on the indoor propagation models, link budget, realization ways and quik- optimization, and we finaly reached some useful conclusions.By the study of indoor propagation models, we got the recommended model for the classic scenes.Working on the TX power of the antenna and the boundary field intensity, we formulated the KPIs of the indoor system.Through the research of the parameters of link budget, we work figure out the max coverage distance of single indoor antenna.Comparing such as the performance, engineering difficulty, we come to some suggested conclusions for the realization ways of the classic indoor scenes and special scenes.After theoretical analysis and quantitative test, we managed to prove the feasibility of the quick-optimization we proposed.As aiming at the real network contrution, companied with quantitative on-site test, the conclusions come from this subject shall have strong actual guidance, and we have done some initiative research on the propagation model correction and the quick-optimization.