Patent ID: 8737376

Claim:
A wireless communication unit operable in a wireless network in Time Division Duplex-Carrier Aggregation (TDD-CA) mode, wherein the wireless network supports TDD communication over a plurality of frequency bands aggregated for the CA, and wherein the wireless communication unit comprises: an antenna unit; a transceiver unit; and a frontend module to signal-wise link the antenna unit and the transceiver unit, wherein the frontend module includes a plurality of frequency band-specific filters in which each band-specific filter contains only one band selection filter usable for both Uplink (UL) and Downlink (DL) signals over a corresponding frequency band from the plurality of frequency bands, and wherein each band-specific filter is in switched connection with the antenna unit and the transceiver unit; wherein the transceiver unit includes: a plurality of frequency band-specific transmitters, wherein each band-specific transmitter is in switched connection with only one band-specific filter corresponding thereto from the plurality of band-specific filters and is configured to perform transmissions of UL signals over a first respective frequency band from the plurality of frequency bands; and a plurality of frequency band-specific receivers, wherein each band-specific receiver is in switched connection with only one band-specific filter corresponding thereto from the plurality of band-specific filters and is configured to perform receptions of DL signals over a second respective frequency band from the plurality of frequency bands.