Abstract: An CDMA telephone system, an RF repeater is connected through a CATV plant and a RASP to a base station and exchanges radio signals with a mobile handset. The base station includes a RAKE receiver and the RF repeater employs a pair of receive signal paths and a pair of transmit signal paths, each with a delay line in one, to provide transmit and receive antenna diversity without doubling the band with the CATV plant.

Abstract: A modular antenna driver is provided for extending the area of coverage between a base station connected to a CATV cable system and a plurality of cordless handsets. The driver includes a duplex circuit connected to the CATV cable and tuned for upstream and downstream communications with the base station over the cable. A core circuit connected to the duplex circuit includes circuitry interconnected to perform and of sufficient bandwidth to perform communication functions common to at least two different handset types. At least one removable module is selectively insertable into the driver and includes circuitry interconnected to perform communication functions characteristic of one handset type wherein one such module will may be replaced by a second module for a different second handset type. In the alternative, multiple removable modules may be simultaneously employed in the driver to permit simultaneous compatibility with a plurality of handset types.

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.

Abstract: A method of controlling the switching of components of a cordless telephone system includes sensing the signal link quality of the signals received from a handset at a basestation through signal exchanging components. e.g. RADs, supplying switching control signals to the signal exchanging components so as to cause adjacent ones of the signal exchanging components to have mutually different switched states; and changing the control signals so as to reverse the switched states of the signal exchanging components in response to a predetermined deterioration of the signal link quality.

Abstract: An RF repeater arrangement for use in linking cordless handsets to a base station, has RF repeaters spaced from a common power supply unit and so distributed over an area to be serviced by the power supply unit that each of the RF repeaters is spaced from at least one other of the RF repeaters by a distance which is less than the range of coverage of the handsets. The power supply unit has a DC power supply connected to supply DC power to said a cable inner conductor, and RF repeaters each have an antenna for exchanging the radio signals with the handsets, transmit and receive circuits and a DC power pick-up connected to the co-axial cable inner conductor for powering the respective RF repeater.