Wireless Network Planning Of TD-SCDMA System

With the development of TD-SCDMA mobile telecommunications technology, the key technology smoothly resolved.TD-SCDMA terminal equipment such as base stations and wireless controller business, in order to improve the system capacity, base stations to expand coverage to ensure that the quality of signal transmission network planning is becoming increasingly important. As for the future of TD-SCDMA network operators.How cost-effective to build a TD-SCDMA cell net, is a guarantee of high quality and low cost network operators are coneerned about. Network planning purposes, generally speaking, it is in support of a variety of multimedia services and QoS to meet certain conditions, have a good network capacity to meet certain requirements of wireless coverage, by adjusting capacity, coverage, links between the balance between providing the best quality of service. As for the future of the TD-SCDMA network operators, due to adopt TD-SCDMA is the only ITU support TDM (TDD), CDMA (CDMA) system.Both WCDMA and cdma2000 and frequeney division multiplexing (FDD) technology compared to the CDMA system than using the time division multiplexing, multi-user detection uplink, uplink time synchronization and advanced smart antenna technology.TD-SCDMA network makes more flexible and complex.FDD traditional 2G and 3G CDMA systems use planning methods can not meet the demand.TD-SCDMA system must step in the planning for deep study TD-SCDMA conforms to the characteristies of the new plan.Firstly, this thesis introduces the history of the development of mobile communications systems, and then analysis of the composition,and characteristics of the third generation mobile communication technology such as WCDMA and cdma2000. In the following, it analyzes characteristics of TD-SCDMA technology and the characteristics of its network planning. Next, a detailed discussion of the core issues:the basic parameters of network design, link budget, covering planning, capacity planning and so on. Through these discussions, it comes to the basic method of TD-SCDMA network planning.Last combined with the example of Suzhou mobile TD-SCDMA network advanced planning, the results show that the planning area with the simulation of 1024 site, the whole network and the coverage of the indicators and statistics on network performance indicators basically meet the requirements of the planning objectives, and also gives a number of inadequacies and the network evolution methods in the following.