With the popularity of intelligent terminals and the rapid growth of mobile data services in recent years, the demand for mobile broadband network is greatly increased. LTE system proposed by 3GPP uses new air interface technology and flattened IP network architecture that can provide the peak rate with downlink 100Mbit / s and uplink 50Mbit / s, and therefore becomes the mainstream technology evolution program for effectively reacting to the explosive growth of global mobile data business. Based on the characteristics of LTE technology and the general planning method, this paper designs a wireless plan for the LTE network of a certain regional telecommunication from two respects of coverage planning and capacity planning, and then verifies the planning through simulation and test, so as to resolve the existing problems of network coverage by means of optimization. The paper estimates out the throughput of each user's uplink and downlink by analyzing both business model and traffic model, and then determines the number of users supportable for each district in accordance with the community capacity, and so as to obtain the number of base stations needed from capacity angle by combining the numbers forecasted by market. Introduction In order to support the core tasks and objectives of smart grid construction, it is necessary to build a wide coverable and flexible accessible terminal access network not just to rely on optical fiber access network which cannot meet the communication needs of different regions and businesses such as: the business of the core city, the business of the ancient city area, the business of the residential area and the massive smart grid intelligent management business relying on the mobile operation terminal for the reason of its high constructional costs, long constructional period or infeasibility at all. While, the wireless communication network is more suitable for dispersed distributed power terminals, especially for the communication needs of mobile service terminals. In our country, wired method is taken at present to solve the communication problems of the backbone network of the distribution network while the wireless public network is as a supplementation. This way has been exposed out so many disadvantages in the actual construction event. Optical fiber communication or carrier communication as the leading cable communication cannot solve the problem of large numbers and big range of coverage of the medium-low voltage distribution network, while the wireless public network now has low security and limit bandwidth traffic that it has no ability to be used as the main communication system in the power system, so the establishment of wireless specialized network is very necessary. In this paper, certain regions are taken as the examples to introduce the LTE wireless specialized network planning of the power system in a detailed way. Process for LTE Wireless Network Planning Network planning mainly includes wireless network, transmission network and the core network, among which the planning of wireless network is the most important one and also the basis of the planning of the other two. Wireless network planning is mainly parameter configuration planning, transmission network planning is for the choice of link budget and connection mode, and the core network planning is the one for network elements number. LTE network planning process includes: network planning requirements analysis, network scope estimation, site selection, coverage capacity simulation, and wireless parameter planning, etc. LTE network planning process shows in Fig. 1: 231 7th International Conference on Education, Management, Computer and Society (EMCS 2017) Advances in Computer Science Research (ACSR), volume 61