Abstract:

TD-SCDMA trunking communication system can provide users with different types of multimedia services based on trunking system,and guarantee users' quality of service（QoS）. Trunking communication system using macrodiversity technique can effectively overcome the large scale of fading and ensure the quality of signal. This paper presents a method of macrodiversity based on two base stations,only the mobile station located at the edge of cell will use the maximum ratio combining algorithm,to ensure signal's quality of users located at the edge of cell,while reducing complexity of traditional macrodiversity algorithm because of all the signals combined,then adjust base stations,improve the forward-link capacity.

Key words: TD-SCDMA trunking communication system, macrodiversity based on two base station, signal to noise ratio, forward-link capacity