TRANSCEIVER FRONT-END

摘要

A transceiver front-end for a communication device is connectable to a signal transmission and reception arrangement adapted to transmit a transmit signal having a transmit frequency and to receive a receive signal having a receive frequency. The transceiver front-end is also connectable to a transmitter adapted to produce the transmit signal, and to a receiver adapted to process the receive signal. The transceiver front-end comprises a transmit frequency suppression filter arrangement and a receive frequency suppression filter arrangement. The transmit frequency suppression filter arrangement is adapted to suppress transfer of a signal having the transmit frequency and to pass a signal having the receive frequency. The receive frequency suppression filter arrangement is adapted to suppress transfer of a signal having the receive frequency and to pass a signal having the transmit frequency. The transceiver front-end also comprises a transmit frequency cancellation arrangement and a receive frequency cancellation arrangement. The transmit frequency cancellation arrangement is adapted to produce a first cancellation signal for cancellation, at receiver nodes, of a suppressed signal having the transmit frequency, transferred by the transmit frequency suppression filter arrangement. The receive frequency cancellation arrangement is adapted to produce a second cancellation signal for cancellation, at signal transmission and reception arrangement nodes of a suppressed signal having the receive frequency, transferred by the receive frequency suppression filter arrangement. Corresponding transceiver, communication device and method are also disclosed.

主权项

1. A transceiver front-end for a communication device, connectable:
at one or more signal transmission and reception arrangement nodes to a signal transmission and reception arrangement adapted to transmit a transmit signal having a transmit frequency and to receive a receive signal having a receive frequency; at one or more transmitter nodes to a transmitter adapted to produce the transmit signal; and at one or more receiver nodes to a receiver adapted to process the receive signal; the transceiver front-end comprising: a transmit frequency suppression filter arrangement connected to the signal transmission and reception arrangement nodes and to the receiver nodes, adapted to suppress transfer of a signal having the transmit frequency and to pass a signal having the receive frequency; a transmit frequency cancellation arrangement connected to the signal transmission and reception arrangement nodes and to the receiver nodes and adapted to produce one or more first cancellation signals for cancellation, at the receiver nodes, of a suppressed signal having the transmit frequency, transferred by the transmit frequency suppression filter arrangement; a receive frequency suppression filter arrangement connected to the signal transmission and reception arrangement nodes and to the transmitter nodes, adapted to suppress transfer of a signal having the receive frequency and to pass a signal having the transmit frequency; and a receive frequency cancellation arrangement connected to the signal transmission and reception arrangement nodes and to the transmitter nodes and adapted to produce one or more second cancellation signals for cancellation, at the signal transmission and reception arrangement nodes, of a suppressed signal having the receive frequency, transferred by the receive frequency suppression filter arrangement.