Abstract: A dynamically reconfigurable frequency division multiplexer and modulator accepts multiple input signals, each of which is individually time division multiplexed. Each input signal is used to modulate a carrier signal having a unique frequency. Switches are used to selectively form one or more groups from the modulated signals, and the signals in each group are frequency division multiplexed by summing them together. In a Personal Communication Service environment, the output for each group may be fed to a respective antenna and the switches and carrier signals controlled to selectively associate inputs signals, carrier frequencies and antennas to implement antenna diversity operations and compensate for signal degradation due to multipath propagation effects.

Abstract: A cordless telephone system, employs a remote antenna driver for converting TDD receive signals, broadcast from a cordless handset operating in a TDD (time division duplex) mode, to FDD (frequency division duplex) receive signals and for converting FDD transmit signals into TDD transmit signals and broadcasting the TDD signals to said handset. A base station operates in an FDD mode for supplying the FDD transmit signals to the remote antenna driver and for receiving the FDD receive signals from the remote antenna driver. The base station has a transmit signal path for supplying the FDD transmit signals and a receive signal path separate from the transmit signal path.