Patent ID: 6374119
Filing Date: 2002-04-16
Classification: H04B,H04W

Abstract:
A mobile communications system, comprising:a base station (BS) transmitting and receiving signals by a predetermined serving frequency signal; a donor module coupled to the BS, the donor module converting output signals of the BS into intermediate frequency (IF) signals and outputting the converted signals to a path, and the donor module converting the IF signals provided from the path into serving frequency signals and transmitting the converted serving frequency signals to the BS, wherein the donor module comprises: a first duplexer performing bi-directional communications with the BS; a transmitter converting radio frequency (RF) signals provided through the first duplexer into IF signals, and amplifying and outputting the signals; a second duplexer transmitting the signals of the transmitter to a rigid (RG) cable, the second duplexer receiving IF signals through the RG cable; a receiver converting IF signals transmitted to the second duplexer into RF signals and transmitting the signals to the first duplexer; and a power controller detecting a signal level of the receiver and controlling the power of the transmitter and receiver; and a plurality of remote modules receiving output signals of the donor module through the path, and converting the signals into the serving frequency signals and outputting the serving frequency signals to a mobile station (MS) within a blanket area, and the remote modules converting the signals into IF signals and outputting the signals to the donor module through the path.