公开(公告)号：US20210359896A1

公开(公告)日：2021-11-18

申请号：US17092214

申请日：2020-11-06

Applicant: Samsung Electronics Co., Ltd.

Inventor： Elina NAYEBI ,  Pranav DAYAL ,  Kee-Bong SONG

IPC: H04L27/36 ,  H04L27/38 ,  H04B1/04 ,  H03F1/32

Abstract: A method of pre-compensating for transmitter in-phase (I) and quadrature (Q) mismatch (IQMM) may include sending a signal through an up-converter of a transmit path to provide an up-converted signal, determining the up-converted signal, determining one or more IQMM parameters for the transmit path based on the determined up-converted signal, and determining one or more pre-compensation parameters for the transmit path based on the one or more IQMM parameters for the transmit path. In some embodiments, the up-converted signal may be determined through a receive feedback path. In some embodiments, the up-converted signal may be determined through an envelope detector.

公开(公告)号：US20200336221A1

公开(公告)日：2020-10-22

申请号：US16661606

申请日：2019-10-23

Applicant: Samsung Electronics Co., Ltd.

Inventor： Joyson SEBASTIAN ,  Pranav DAYAL ,  Kee-Bong SONG

IPC: H04B17/10 ,  H01Q21/06

Abstract: A method and an apparatus are provided. The method includes (a) turning on an antenna of an antenna array, wherein other antennas of the antenna array are turned off; (b) measuring power for the antenna at each phase of a phase array; (c) repeating step (b) for each antenna of the antenna array; and (d) estimating gain errors based on the measured power for each antenna of the antenna array at each phase of the phase array.

公开(公告)号：US20190363922A1

公开(公告)日：2019-11-28

申请号：US16536652

申请日：2019-08-09

Applicant: Samsung Electronics Co., Ltd.

Inventor： Amir DEZFOOLIYAN ,  Vignesh SETHURAMAN ,  Hamed MALEKI ,  Linbo LI ,  Kee-Bong SONG

IPC: H04L27/26

Abstract: A method and apparatus are provided. The method includes receiving a reference signal from a transceiver, estimating a time offset (TO) of the reference signal in the frequency domain based on a spectral phase ramp introduced by the TO, compensating the TO of the reference signal based on the estimated TO in the frequency domain by applying the spectral phase ramp to the received reference signal, and providing a TO compensated signal of the reference signal.

公开(公告)号：US20180167241A1

公开(公告)日：2018-06-14

申请号：US15436309

申请日：2017-02-17

Applicant: Samsung Electronics Co., Ltd.

Inventor： Amir DEZFOOLIYAN ,  Vignesh Sethuraman ,  Hyukjoon KWON ,  Hamed MALEKI ,  Linbo LI ,  Kee-Bong SONG

IPC: H04L25/03 ,  H04L27/148 ,  H04L27/233 ,  H04L5/00 ,  H04L25/02

CPC classification number: H04L25/03821 ,  H04L5/0048 ,  H04L25/0256 ,  H04L25/03159 ,  H04L27/148 ,  H04L27/2334 ,  H04L27/265 ,  H04L27/2657 ,  H04L27/2675

Abstract: Methods and apparatuses are provided in which a signal is received at a receiver. A processor of the receiver computes frequency offset (FO) inter-carrier interference (ICI) compensation, based on a real matrix part of an approximate ICI matrix and an FO estimated from the received signal. The processor applies the FO ICI compensation to the received signal in a frequency domain to produce an ICI compensated output. The processor applies a phase rotation to the ICI compensated output.

公开(公告)号：US20170331654A1

公开(公告)日：2017-11-16

申请号：US15247535

申请日：2016-08-25

Applicant: Samsung Electronics Co., Ltd.

Inventor： Kee-Bong SONG ,  Shuangquan WANG ,  Hairuo ZHUANG

IPC: H04L27/233 ,  H04B1/10 ,  H04L25/03 ,  H04L27/22

CPC classification number: H04L27/2334 ,  H04B1/10 ,  H04L25/03292 ,  H04L27/22

Abstract: An interference cancellation (IC) processor, a method, a method of manufacturing a semiconductor device, and a method of constructing an integrated circuit are provided. The IC processor includes a plurality of mono interference cancellation (MIC) filter estimation processors; a combined effective channel calculation processor; a combined filter calculation processor; and a combined filter processor, including a first input connected to the output of the combined filter calculation processor, a second input for receiving a signal for setting a length of the combined filter that is connected to a second input of the IC processor, a third input connected to the input of the MIC-BRC processor, and an output for providing a filtered output of a de-rotated GMSK signal that is connected to a second output of the IC processor that provides a filtered output yi of the de-rotated GMSK signal.

公开(公告)号：US20230082170A1

公开(公告)日：2023-03-16

申请号：US17982504

申请日：2022-11-07

Applicant: Samsung Electronics Co., Ltd.

Inventor： Pranav DAYAL ,  Kee-Bong SONG ,  Hou-Shin CHEN ,  Sung-En CHIU ,  Karthik NAGARAJAN

IPC: H04W52/24

Abstract: A method of controlling power in a transmission system may include determining a first transmit power of a first transmit path, determining a second transmit power of a second transmit path, and controlling the first transmit path and the second transmit path based on a combination of the first transmit power and the second transmit power. The combination of the first transmit power and the second transmit power may include a sum of the first transmit power and the second transmit power. Controlling the first transmit path and the second transmit path may include determining a first effective power target for the first transmit path based on the first transmit power and the second transmit power, and determining a second effective power target for the second transmit path based on the first transmit power and the second transmit power.

公开(公告)号：US20220131735A1

公开(公告)日：2022-04-28

申请号：US17572614

申请日：2022-01-10

Applicant: Samsung Electronics Co., Ltd.

Inventor： Elina NAYEBI ,  Pranav DAYAL ,  Kee-Bong SONG

IPC: H04L27/36 ,  H04L27/00 ,  H04L27/38

Abstract: An in-phase and quadrature mismatch compensator for a quadrature transmitter includes a delay element, a complex-valued filter and an adder. The delay element receives an input transmit signal and outputs a delayed transmit signal. The complex-valued filter receives the input transmit signal and outputs a selected part of a filtered output transmit signal. The adder adds the delayed transmit signal and the selected part of the filtered output transmit signal and outputs a pre-compensated transmit signal. In one embodiment, the selected part of the filtered output transmit signal includes the real part of the complex-valued output transmit signal. In another embodiment, the selected part of the filtered output transmit signal includes the imaginary part of the complex-valued output transmit signal. Two transmit real-valued compensators are also disclosed that combine the in-phase and quadrature signals before being filtered.

公开(公告)号：US20220116884A1

公开(公告)日：2022-04-14

申请号：US17222979

申请日：2021-04-05

Applicant: Samsung Electronics Co., Ltd.

Inventor： Pranav DAYAL ,  Kee-Bong SONG ,  Hou-Shin CHEN ,  Sung-En CHIU ,  Karthik NAGARAJAN

IPC: H04W52/24

Abstract: A method of controlling power in a transmission system may include determining a first transmit power of a first transmit path, determining a second transmit power of a second transmit path, and controlling the first transmit path and the second transmit path based on a combination of the first transmit power and the second transmit power. The combination of the first transmit power and the second transmit power may include a sum of the first transmit power and the second transmit power. Controlling the first transmit path and the second transmit path may include determining a first effective power target for the first transmit path based on the first transmit power and the second transmit power, and determining a second effective power target for the second transmit path based on the first transmit power and the second transmit power.

公开(公告)号：US20210067232A1

公开(公告)日：2021-03-04

申请号：US16736224

申请日：2020-01-07

Applicant: Samsung Electronics Co., Ltd.

Inventor： Yanru TANG ,  Hongbing CHENG ,  Kee-Bong SONG

IPC: H04B7/08 ,  H04B7/0456 ,  H04B7/06

Abstract: A system and method for providing channel recovery for angle domain sparse channels is herein provided. According to one embodiment, a method includes receiving an input including a measurement output, and recovering analog channels utilizing bases derived from the measurement output.

公开(公告)号：US20210014810A1

公开(公告)日：2021-01-14

申请号：US17034269

申请日：2020-09-28

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hyukjoon KWON ,  Niranjan Nayak RATNAKAR ,  Kee-Bong SONG ,  Jungwon LEE

IPC: H04W56/00 ,  H04L27/26 ,  H04L5/00 ,  H04J11/00

Abstract: A method and apparatus are provided. The method includes, but is not limited to, receiving a universal synchronization signal (USS) including a universal primary synchronization signal (UPSS) and a universal secondary synchronization signal (USSS), wherein the USS is coded using a mother code which is extended to m resource blocks (RBs) and n orthogonal frequency division multiplexing (OFDM) symbols and a code cover of m RBs and n symbols is applied to the mother code, determining a cell identity based on the USS, determining a frame timing based on the USS, and connecting a user equipment to a network using the cell identity and the frame timing.