Research And Realization Of Remote Micro-power Module Based On Category5Ethernet Cable

The rapid growth of mobile communication users’ increase, made the user want to have a mobile communication system that have wide coverage and high quality, the mobile communication accessory equipment was widely applied because its efficiency and economy. Compared with base station, radio communication repeater’s investment is less, the structure is simpler, and its installation is easier, so it is widely used in weak signal areas or blind zone, such as the underground garage, subways, tunnels, elevators, hotels, scenic places, it can effectively improve the communication quality.This paper designed a micro-power accessory equipment based on Category5Ethernet Cable, because its compact, low-cost, low output power, and use existing Category5Ethernet Cable to transmission mobile communication signal, it is easy to laying and installation. Micro-power module is core of the accessory equipment,the article focuses especially on the design of each part of the micro-power module.The innovation of this paperis collinear transmission of Ethernet signal and the mobile communication signal; use highly integrated chip (use RFFC2071as RF synthesizer, capable of dual mixer) and PCB design (integrate the monitoring section and signal chain into a single PCB board), compact the micro-power module’s structure; use one PCB to accomplish different model of mobile communication signal’s transmission, save the development time and reduce the product cost. The difficulty is obtaining different types of signal from Category5Ethernet Cable, different signals’ isolation.This paper described the remote micro-power repeaterwas already cooperation with mobile Operators to solve the weak coverage area by install the repeater into parts of the blind zone. If the Operators use this access program, the Operators’ Quality of Service and the users’access experience will all be of great benefit.