公开(公告)号：US20230291433A1

公开(公告)日：2023-09-14

申请号：US18040230

申请日：2021-06-25

Applicant: Intel Corporation

Inventor： Ofer Benjamin ,  Eli Borokhovich ,  Brent Carlton ,  Ofir Degani ,  Ronen Kronfeld ,  Stefano Pellerano ,  Mustafijur Rahman ,  Ehud Reshef ,  Sarit Zur

IPC: H04B1/525 ,  H04B1/10

CPC classification number: H04B1/525 ,  H04B1/1036

Abstract: A transceiver may include a transmit path and a receive path that are each coupled to a radio frequency (RF) interface, and a self-interference canceller (SIC). The SIC is coupled between the transmit and the receive paths. The SIC is configured to cancel a self-interference signal from a received signal on the receive path based on a transmit signal on the transmit path.

公开(公告)号：US10931384B1

公开(公告)日：2021-02-23

申请号：US16727512

申请日：2019-12-26

Applicant: Intel Corporation

Inventor： Eli Borokhovich ,  Assaf Ben-Bassat ,  Shahar Gross ,  Nahum Kimiagarov

IPC: H04B17/12 ,  H03K5/131 ,  H04B1/04 ,  H03L7/099

Abstract: A closed loop transmitter (Tx) calibration system is disclosed. The closed loop Tx calibration system comprises a transmitter circuit configured to generate a Tx output signal at a Tx output frequency based on a Tx local oscillator (LO) signal. The closed loop Tx calibration system further comprises a loop back (LPBK) receiver circuit coupled to the transmitter circuit and configured to downconvert the Tx output signal at the Tx output frequency to form an LPBK baseband signal at an LPBK intermediate frequency (IF), based on an LPBK LO signal. In some embodiments, the LPBK IF frequency is different from zero. In some embodiments, the closed loop Tx calibration system further comprises an LO generation circuit configured to generate the Tx LO signal and the LPBK LO signal from a single phase locked loop (PLL) source, based on utilizing a digital to time converter (DTC) circuit.