Huawei Technologies Co., Limited

Dror Regev

Shimon Shilo

Doron Ezri

Sheng Liu

Dong Liang

Chirn Chye Boon

Junping Zhang

Shimi Shilo

Xiang Yi

Gengen Hu

Genadiy Tsodik

A radio frequency (RF) front end for wireless communications, in particular for use in a half duplex (HD) and/or full duplex (FD) transceiver. The RF front end is based on a quadrature balanced power amplifier (QBPA). The RF front end includes an antenna port for outputting a transmit signal to and receiving a receive signal from an antenna, and a receive port for outputting the receive signal to a signal processing section. Further, the QBPA is configured to receive a transmit input signal at a first port, receive a cancellation input signal at a fourth port, and receive the receive signal at a second port coupled to the antenna port.

Radio frequency front end for a full duplex or half duplex transceiver

The communication receiver comprises a mixer being configured to mix the communication signal with a periodic mixing signal having a mixing frequency fto obtain a mixed communication signal, wherein the mixed communication signal comprises a first frequency spectrum portion comprising the spectral region of interest being situated around a frequency f+fand a second frequency spectrum portion comprising the spectral range of interest being situated around f&#x2212;f; a first demodulator being configured to demodulate a first frequency channel of the plurality of frequency channels within the spectral range of interest of the first frequency spectrum portion on the basis of a first local oscillator frequency f; and a second demodulator being configured to demodulate a second frequency channel of the plurality of frequency channels within the spectral region of interest of the second frequency spectrum portion on the basis of a second local oscillator frequency f.

Communication receiver and method

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Munich, Germany

Dror Regev