公开(公告)号：US11750232B2

公开(公告)日：2023-09-05

申请号：US17539109

申请日：2021-11-30

Applicant: Samsung Electronics Co., Ltd.

Inventor： Matthew Tonnemacher ,  Jin Yuan ,  Chance Tarver ,  Khurram Muhammad

IPC: H04B1/10 ,  H04B1/3805 ,  H04B1/14

CPC classification number: H04B1/1036 ,  H04B1/14 ,  H04B1/3805 ,  H04B2001/1045

Abstract: A base station configured to perform a method for self-interference cancelation (SIC) is provided. The method includes transmitting, by a transceiver configured to transmit an uplink channel and a downlink channel concurrently, one or more signals, the transceiver coupled to, or including, a first number of transmit antennas and a second number of receive antennas. The method also includes, for at least one receive antenna of the second number of receive antennas, applying a forward path model including a non-linear component corresponding to a transmit path in the transceiver, and applying an equalizer function to a first signal to be transmitted by at least one transmit antenna of the first number of transmit antennas determine a self-interference (SI) estimate; and subtracting, in SIC circuitry, the SI estimate from the signal received via at least one receive antenna of the second number of receive antennas to obtain an residual signal.

公开(公告)号：US20230046481A1

公开(公告)日：2023-02-16

申请号：US17818672

申请日：2022-08-09

Applicant: Samsung Electronics Co., Ltd.

Inventor： Chance Tarver ,  Matthew Tonnemacher ,  Khurram Muhammad

IPC: H04B17/12 ,  H04B7/0413 ,  H04L25/03 ,  H04B17/15

Abstract: A method includes transmitting, by a transceiver configured to concurrently transmit over multiple transmit paths and receive over multiple receive paths, one or more signals, the transceiver comprising multiple transmit antennas and multiple receive antennas. The method also includes, for at least one of the multiple receive antennas: applying a transmit path model to one or more transmitted signals to generate one or more transmit path estimates, the transmit path model determined based on multiple analog power amplifiers associated with the multiple transmit paths; calculating one or more estimated self-interference (SI) signals based on the one or more transmit path estimates using an equalizer array comprising a predetermined channel model; and subtracting the one or more estimated SI signals from one or more receive signals received at the at least one receive antenna to obtain one or more residual signals.

公开(公告)号：US20230050742A1

公开(公告)日：2023-02-16

申请号：US17818692

申请日：2022-08-09

Applicant: Samsung Electronics Co., Ltd.

Inventor： Chance Tarver ,  Matthew Tonnemacher ,  Khurram Muhammad

IPC: H04B17/10 ,  H04B17/15 ,  H04B7/0413 ,  H04L25/03

Abstract: A method includes transmitting, by a transceiver configured to concurrently transmit over multiple transmit paths and receive over multiple receive paths, one or more signals, the transceiver comprising multiple transmit antennas and multiple receive antennas. The method also includes, for at least one of the multiple receive antennas: receiving one or more feedback signals from one or more power amplifiers associated with the one or more transmitted signals; calculating one or more estimated self-interference (SI) signals based on the one or more feedback signals using an equalizer array comprising a predetermined channel model; and subtracting the one or more estimated SI signals from one or more receive signals received at the at least one receive antenna to obtain one or more residual signals.

公开(公告)号：US11032717B2

公开(公告)日：2021-06-08

申请号：US16143178

申请日：2018-09-26

Applicant: Samsung Electronics Co., Ltd.

Inventor： Pengda Huang ,  Hao Chen ,  Chance Tarver ,  Boon Loong Ng ,  Vikram Chandrasekhar ,  Jianzhong Zhang

IPC: H04B7/022 ,  H04B17/309 ,  H04B17/382 ,  H04J11/00 ,  H04L5/00 ,  H04W8/18 ,  H04W8/24 ,  H04W16/14 ,  H04W24/10 ,  H04W48/16 ,  H04W60/00 ,  H04W72/14 ,  H04W74/08 ,  H04W84/02 ,  H04W88/02 ,  H04W88/08 ,  H04W88/12 ,  H04W88/18 ,  H04W92/02 ,  H04W92/10 ,  H04W92/12 ,  H04W92/20 ,  H04W92/22 ,  H04W84/04

Abstract: A method of operating a base station (BS) for a coexistence operation in a wireless communication system is provided. The method comprises performing a first measurement of first signals received from neighbor BSs over channels that are shared with the neighbor BSs before receipt of a spectrum access grant from a network entity; generating a registration request comprising a first measurement report based on the first measurement of the first signals; transmitting, to the network entity, the registration request comprising the first measurement report of the first signals; receiving the spectrum access grant from the network entity; and performing a second measurement of second signals received from the neighbor BSs over the channels that are shared with the neighbor BSs after receiving the spectrum access grant from the network entity.

公开(公告)号：US11909455B2

公开(公告)日：2024-02-20

申请号：US17818692

申请日：2022-08-09

Applicant: Samsung Electronics Co., Ltd.

Inventor： Chance Tarver ,  Matthew Tonnemacher ,  Khurram Muhammad

IPC: H04B17/10 ,  H04L25/03 ,  H04B7/0413 ,  H04B17/15

CPC classification number: H04B17/101 ,  H04B7/0413 ,  H04B17/15 ,  H04L25/03006

Abstract: A method includes transmitting, by a transceiver configured to concurrently transmit over multiple transmit paths and receive over multiple receive paths, one or more signals, the transceiver comprising multiple transmit antennas and multiple receive antennas. The method also includes, for at least one of the multiple receive antennas: receiving one or more feedback signals from one or more power amplifiers associated with the one or more transmitted signals; calculating one or more estimated self-interference (SI) signals based on the one or more feedback signals using an equalizer array comprising a predetermined channel model; and subtracting the one or more estimated SI signals from one or more receive signals received at the at least one receive antenna to obtain one or more residual signals.

公开(公告)号：US20220329466A1

公开(公告)日：2022-10-13

申请号：US17537293

申请日：2021-11-29

Applicant: Samsung Electronics Co., Ltd.

Inventor： Chance Tarver ,  Matthew Tonnemacher ,  Khurram Muhammad

IPC: H04L25/03 ,  H04B7/0413 ,  H04B1/44

Abstract: An apparatus is configured to perform a method for self-interference cancelation (SIC). In one embodiment, an apparatus is provided. The apparatus includes a transceiver, a first number of transmit antennas, a second number of receive antennas, an equalizer, and SIC circuitry. The equalizer is configured to, for at least one receive antenna of the second number of receive antennas: receive feedback signals, wherein a feedback signal is received from each of the first number of transmit antennas; and calculate, based on the feedback signals and an equalizer function, a self-interference (SI) estimate for the at least one receive antenna. The SIC circuitry is configured to, for the at least one receive antenna of the second number of receive antennas, subtract the SI estimate from a signal received at the at least one of the second number of receive antennas to obtain a residual signal.

公开(公告)号：US20220321156A1

公开(公告)日：2022-10-06

申请号：US17539109

申请日：2021-11-30

Applicant: Samsung Electronics Co., Ltd.

Inventor： Matthew Tonnemacher ,  Jin Yuan ,  Chance Tarver ,  Khurram Muhammad

IPC: H04B1/10 ,  H04B1/3805 ,  H04B1/14

Abstract: A base station configured to perform a method for self-interference cancelation (SIC) is provided. The method includes transmitting, by a transceiver configured to transmit an uplink channel and a downlink channel concurrently, one or more signals, the transceiver coupled to, or including, a first number of transmit antennas and a second number of receive antennas. The method also includes, for at least one receive antenna of the second number of receive antennas, applying a forward path model including a non-linear component corresponding to a transmit path in the transceiver, and applying an equalizer function to a first signal to be transmitted by at least one transmit antenna of the first number of transmit antennas determine a self-interference (SI) estimate; and subtracting, in SIC circuitry, the SI estimate from the signal received via at least one receive antenna of the second number of receive antennas to obtain an residual signal.

公开(公告)号：US11909457B2

公开(公告)日：2024-02-20

申请号：US17818672

申请日：2022-08-09

Applicant: Samsung Electronics Co., Ltd.

Inventor： Chance Tarver ,  Matthew Tonnemacher ,  Khurram Muhammad

IPC: H04B17/12 ,  H04B17/15 ,  H04L25/03 ,  H04B7/0413

CPC classification number: H04B17/12 ,  H04B7/0413 ,  H04B17/15 ,  H04L25/03006

Abstract: A method includes transmitting, by a transceiver configured to concurrently transmit over multiple transmit paths and receive over multiple receive paths, one or more signals, the transceiver comprising multiple transmit antennas and multiple receive antennas. The method also includes, for at least one of the multiple receive antennas: applying a transmit path model to one or more transmitted signals to generate one or more transmit path estimates, the transmit path model determined based on multiple analog power amplifiers associated with the multiple transmit paths; calculating one or more estimated self-interference (SI) signals based on the one or more transmit path estimates using an equalizer array comprising a predetermined channel model; and subtracting the one or more estimated SI signals from one or more receive signals received at the at least one receive antenna to obtain one or more residual signals.

公开(公告)号：US11824692B2

公开(公告)日：2023-11-21

申请号：US17537293

申请日：2021-11-29

Applicant: Samsung Electronics Co., Ltd.

Inventor： Chance Tarver ,  Matthew Tonnemacher ,  Khurram Muhammad

IPC: H04B1/44 ,  H04L25/03 ,  H04B7/0413

CPC classification number: H04L25/03891 ,  H04B1/44 ,  H04B7/0413

Abstract: An apparatus is configured to perform a method for self-interference cancelation (SIC). In one embodiment, an apparatus is provided. The apparatus includes a transceiver, a first number of transmit antennas, a second number of receive antennas, an equalizer, and SIC circuitry. The equalizer is configured to, for at least one receive antenna of the second number of receive antennas: receive feedback signals, wherein a feedback signal is received from each of the first number of transmit antennas; and calculate, based on the feedback signals and an equalizer function, a self-interference (SI) estimate for the at least one receive antenna. The SIC circuitry is configured to, for the at least one receive antenna of the second number of receive antennas, subtract the SI estimate from a signal received at the at least one of the second number of receive antennas to obtain a residual signal.

公开(公告)号：US11695445B2

公开(公告)日：2023-07-04

申请号：US17389258

申请日：2021-07-29

Applicant: Samsung Electronics Co., Ltd.

Inventor： Khurram Muhammad ,  Yu Liu ,  Chance Tarver

IPC: H04B1/525 ,  H04L5/14 ,  H04B1/04 ,  H04B1/18 ,  H04B1/10

CPC classification number: H04B1/525 ,  H04B1/0475 ,  H04B1/1081 ,  H04B1/18 ,  H04L5/143 ,  H04B2001/0425 ,  H04B2001/0433

Abstract: A cross-division duplex (XDD) system includes an apparatus having a transceiver configured to communicate via an uplink channel and a downlink channel concurrently. The apparatus also includes a transmit antenna, a receive antenna, and a processor. The processor is configured to: estimate a non-linear component corresponding to a transmit path in the transceiver; apply an equalizer function to a received signal; and subtract, in a self-interference cancel (SIC) circuitry, the estimated non-linear component from the equalized signal.