Abstract: A transceiver apparatus (204) is configured to support antenna selection in accordance with a communications standard. The apparatus comprises a hardware subsystem (300) comprising a duplexing component (328), a transmitter chain, a first receiver chain (308) and a second receiver chain (310) respectively comprising a first antenna port (336) and a second antenna port (342) at an upstream end thereof. The first receiver chain (308) and the transmitter chain sharing the duplexing component (328). The apparatus further comprises a signal redirection system (330, 350, 372) arranged to couple temporarily the second antenna port (342) to the first receiver chain (308) at a point of entry thereof and in response to an antenna selection instruction, thereby redirecting temporarily a signal path from the second antenna port (342) into the first receiver chain (308) and then back into the second receiver chain (310) downstream of the point of entry.

Abstract: An amplifier apparatus (332) comprises a main linear amplifier sub-circuit (402) having a main driving signal input terminal (331) and a main amplifier output terminal (406). The apparatus also comprises an auxiliary linear amplifier sub-circuit (404) having an auxiliary driving signal input terminal (357) and an auxiliary amplifier output terminal (408). A combining network (410) is operably coupled between the main amplifier output terminal (406) and the auxiliary amplifier output terminal (408), the combining network (410) having a main-side terminal (424) and an auxiliary-side terminal (434). The main linear amplifier sub-circuit (402) is arranged to generate, when in use, a main amplified signal in response to a main driving signal applied at the main driving signal input terminal (331).