Patent ID: 8886143
Filing Date: 2014-11-11
Classification: H04B

Abstract:
1. An RF transceiver for an LTE compliant communication device, comprising a transmit side with a transmit PLL synthesizer, and a receive side with a receive PLL synthesizer, said transmit side further comprising at least one transmit path including a transmit mixer unit and a filter unit, and said receive side further comprising at least two receive paths, each path including a respective receive mixer unit and filter unit, said transmit PLL synthesizer being connected to the transmit mixer unit and operable to provide a carrier frequency for said at least one transmit path, and said receive PLL synthesizer being connectable to the receive mixer unit and operable to provide a carrier frequency for said at least two receive paths, wherein: the transmit PLL synthesizer is connectable to the transmit mixer unit via a switching arrangement, the receive PLL synthesizer is connectable to at least one of the receive mixer units via the same switching arrangement, and said switching arrangement being operable to selectively connect said transmit PLL synthesizer to said at least one receive mixer unit and to selectively connect said receive PLL synthesizer to said transmit mixer unit, said switching arrangement further being operable to connect said receive PLL synthesizer to a first receive mixer unit of a first receive path of the at least two receive paths and to simultaneously connect the transmit PLL synthesizer to a second receive mixer unit of a second receive path of the at least two receive paths.