A mobile communication system. The system has a housing comprising an interior region and an exterior region and a processing device provided within an interior region of the housing. The system has an rf transmit module coupled to the processing device, and configured on a transmit path. The system has a transmit filter provided within the rf transmit module. In an example, the transmit filter comprises a diplexer filter comprising a single crystal acoustic resonator device.

A mobile communication system. The system has a housing comprising an interior region and an exterior region and a processing device provided within an interior region of the housing. The system has an rf transmit module coupled to the processing device, and configured on a transmit path. The system has a transmit filter provided within the rf transmit module. In an example, the transmit filter comprises a diplexer filter comprising a single crystal acoustic resonator device.

A method in a wireless communications device for transmitting current location information representing a current location of the wireless communications device. The method entails, from within a communication application executing on a processor of the wireless communications device, causing the wireless communications device to obtain the current location information representing the current location of the wireless communications device, including the current location information in a communication generated from within the communication application, and transmitting the communication that includes the current location information. The method optionally entails a further step of performing a reverse look-up of GPS coordinates representing the current location to determine address information for including in the communication. Location information, such as maps or URLs to maps can be sent directly from an e-mail application or instant messenger without having to separately launch a mapping application.

RF signal amplifiers are provided that include an RF input port, a switching device having an input that is coupled to the RF input port, a first output and a second output, a first diplexer having an input that is coupled to both the first output of the switching device and the second output of the switching device, and a first RF output port that is coupled to an output of the first diplexer. These amplifiers further include an attenuator that is coupled between the second output of the switching device and the input of the first diplexer.

RF signal amplifiers are provided that include an RF input port, a switching device having an input that is coupled to the RF input port, a first output and a second output, a first diplexer having an input that is coupled to both the first output of the switching device and the second output of the switching device, and a first RF output port that is coupled to an output of the first diplexer. These amplifiers further include an attenuator that is coupled between the second output of the switching device and the input of the first diplexer.

A point-to-point radio system includes a phased array antenna system and circuitry to couple the phased array to a diplexer for steering nulls of the phased array to suppress interference.

A point-to-point radio system includes a phased array antenna system and circuitry to couple the phased array to a diplexer for steering nulls of the phased array to suppress interference.

An architecture for combining full-duplex and frequency division duplex communication systems, includes a coupler coupled to a terminal and configured to allow duplex transmissions of digital signals via the terminal. The subject architecture includes a filtering device coupled to the coupler and configured to divide a downstream signal received through the coupler into a plurality of downstream signals associated with a plurality of frequency ranges. The subject architecture includes a transmitter coupled to the coupler and configured to drive, through the coupler, an upstream signal comprising digital signals associated with the plurality of frequency ranges. The subject architecture also includes a plurality of receivers coupled to the filtering device and configured to receive respective ones of the plurality of downstream signals.

An architecture for combining full-duplex and frequency division duplex communication systems, includes a coupler coupled to a terminal and configured to allow duplex transmissions of digital signals via the terminal. The subject architecture includes a filtering device coupled to the coupler and configured to divide a downstream signal received through the coupler into a plurality of downstream signals associated with a plurality of frequency ranges. The subject architecture includes a transmitter coupled to the coupler and configured to drive, through the coupler, an upstream signal comprising digital signals associated with the plurality of frequency ranges. The subject architecture also includes a plurality of receivers coupled to the filtering device and configured to receive respective ones of the plurality of downstream signals.

Phase control for carrier aggregation. In some embodiments, a carrier aggregation circuit can include a first filter configured to allow operation in a first frequency band, and a second filter configured to allow operation in a second frequency band. The circuit can further include a first path implemented between the first filter and a common node, with the first path being configured to provide a substantially matched impedance for the first frequency band and a substantially open-circuit impedance for the second frequency band. The circuit can further include a second path implemented between the second filter and the common node, with the second path being configured to provide a substantially matched impedance for the second frequency band and a substantially open-circuit impedance for the first frequency band.