Patent ID: 7280509
Filing Date: 2007-10-09
Classification: H04B,H04W

Abstract:
1. A base transceiver station (BTS) in a mobile communication system, comprising: a BTS main processing unit for generating a control command to control one BTS; a multi-rate channel unit for processing an inter-channel communication, each channel having one of a plurality of different data rates, said multi-rate channel unit producing a digital input signal; a signal transformation unit for transforming and modulating the digital input signal received from said multi-rate channel unit, wherein said signal transformation unit comprises (i) a digital-signal transformation unit for converting the digital-input signal into a medium-frequency analog signal and (ii) an analog-signal transformation unit that receives the medium-frequency analog signal and produces an analog output signal, wherein the analog-signal transformation unit includes radio frequency (RF) switches for dynamically selecting one of a plurality of bandpass filters to provide selective forward-link-bandwidth operation, wherein the selected bandpass filter determines a bandwith of the analog output signal; and a wireless unit connected to said signal transformation unit, said wireless unit for receiving the analog output signal from the signal transformation unit and for wirelessly communicating that analog output signal to a mobile station.