Hongbing Cheng

US Patent:

20130287135, Oct 31, 2013

Filed:

Apr 30, 2012

Appl. No.:

13/460498

Inventors:

Hongbing Cheng - San Diego CA, US
Soobok Yeo - San Diego CA, US
Kwangman Ok - San Diego CA, US
Inyup Kang - San Diego CA, US

Assignee:

SAMSUNG ELECTRONICS CO., LTD. - Gyeonggi-Do

International Classification:

H04B 15/00

US Classification:

375285

Abstract:

A method of operation of a communication system includes: calculating a total received power estimation based on a designated received signal having a designated pilot symbol; calculating an instantaneous channel estimation based on the designated pilot symbol calculating a channel gain power estimation based on the instantaneous channel estimation; calculating a total interference power estimation based on a difference between the instantaneous channel estimation and a delayed channel estimation; calculating a designated received power based on a difference between the total received power estimation and the total interference power estimation; and determining a relative transmission power estimation based on the designated received power and the channel gain power estimation for communicating with a device.

US Patent:

20220247091, Aug 4, 2022

Filed:

Mar 31, 2022

Appl. No.:

17/710072

Inventors:

- Suwon-si, KR
Hongbing Cheng - San Diego CA, US
Kee-Bong Song - San Diego CA, US

International Classification:

H01Q 21/20
H01Q 9/04

Abstract:

A first antenna array includes antenna panels including: first antenna panels arranged on a first circle having a first radius, each of the first antenna panels including antenna elements; and second antenna panels arranged on a second circle having a second radius, each of the second antenna panels including antenna elements, the second circle being concentric with the first circle at a center point, the second antenna panels being arranged at a first angle around the center point with respect to the first antenna panels, the first radius, the second radius, and the first angle being computed in accordance with wireless transmission conditions including: a line-of-sight distance to a second antenna array including third antenna panels arranged on two or more circles; and a carrier frequency of a line-of-sight wireless transmission between the first antenna array and the second antenna array.

US Patent:

20230077972, Mar 16, 2023

Filed:

Nov 17, 2022

Appl. No.:

17/989332

Inventors:

- Gyeonggi-do, KR
Hongbing CHENG - San Diego CA, US
Kee-Bong SONG - San Diego CA, US

International Classification:

H04B 7/08
H04B 7/0456
H04B 7/06

Abstract:

A system and method are provided in which an input including a measurement output of digital channel information is received. The digital channel information includes an estimated digital channel, a beamforming codebook, and quantized angle of arrival (AoA) values. A basis corresponding to one of the quantized AoA values is selected according to a largest projection power of the measurement output. A partial channel is recovered based on the beamforming codebook and the estimated digital channel. An analog channel is recovered based on the partial channel and the basis.

US Patent:

20210328653, Oct 21, 2021

Filed:

Aug 3, 2020

Appl. No.:

16/983813

Inventors:

- Suwon-si, KR
HONGBING CHENG - San Diego CA, US
KEE-BONG SONG - San Diego CA, US

International Classification:

H04B 7/08

Abstract:

A wireless communication device includes: a processing circuit configured to: receive, from an antenna array during a previous period, a first directional electromagnetic signal including beam sweeping reference symbols of a previous beam sweeping period; compute an estimated combined channel; estimate a dominant angle-of-arrival (AoA) of the first directional electromagnetic signal based on the estimated combined channel and a previous beamforming codebook including two or more beamforming vectors corresponding to different AoAs; construct an updated beamforming codebook based on the estimated dominant AoA and one or more remaining AoAs spaced apart from the estimated dominant AoA; receive, at the antenna array during a current period, a second directional electromagnetic signal including data symbols; determine a beamforming vector for data reception of the second directional electromagnetic signal based on the updated beamforming codebook; and detect the data symbols in the second directional electromagnetic signal based on the determined beamforming vector.

US Patent:

20210314056, Oct 7, 2021

Filed:

Aug 10, 2020

Appl. No.:

16/989653

Inventors:

- Suwon-si, KR
HONGBING CHENG - San Diego CA, US
KEE-BONG SONG - San Diego CA, US

International Classification:

H04B 7/08
H04L 25/02

Abstract:

Compressive sensing (CS) channel recovery using history measurements. Both current and history measurements for AoAs estimation, and only use current measurement for coefficient estimation. The dominant angle of arrival (AoA) is estimated using history and current measurements. In Approach 1, the dominant AoA is invariant and the coefficients are uncorrelated. In Approach 2, the dominant AoA is invariant and the coefficients are fully correlated. The remaining AoAs are estimated. The coefficients corresponding to each estimated dominant AoA are estimated. And the channel is recovered.

US Patent:

20210273345, Sep 2, 2021

Filed:

Jul 14, 2020

Appl. No.:

16/929035

Inventors:

- Suwon-si, KR
Hongbing Cheng - San Diego CA, US
Kee-Bong Song - San Diego CA, US

International Classification:

H01Q 21/20
H01Q 9/04

Abstract:

A first antenna array includes antenna panels including: first antenna panels arranged on a first circle having a first radius, each of the first antenna panels including antenna elements: and second antenna panels arranged on a second circle having a second radius, each of the second antenna panels including antenna elements, the second circle being concentric with the first circle at a center point, the second antenna panels being arranged at a first angle around the center point with respect to the first antenna panels, the first radius, the second radius, and the first angle being computed in accordance with wireless transmission conditions including: a line-of-sight distance to a second antenna array including third antenna panels arranged on two or more circles; and a carrier frequency of a line-of-sight wireless transmission between the first antenna array and the second antenna array.

US Patent:

20210067232, Mar 4, 2021

Filed:

Jan 7, 2020

Appl. No.:

16/736224

Inventors:

- Gyeonggi-do, KR
Hongbing CHENG - San Diego CA, US
Kee-Bong SONG - San Diego CA, US

International Classification:

H04B 7/08
H04B 7/0456
H04B 7/06

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.

US Patent:

20210058273, Feb 25, 2021

Filed:

Nov 19, 2019

Appl. No.:

16/688866

Inventors:

- Suwon-si, KR
Hongbing Cheng - San Diego CA, US
Kee-Bong Song - San Diego CA, US

International Classification:

H04L 25/02
H04B 1/7113
H04B 17/336

Abstract:

A method for minimizing a time domain mean square error (MSE) of channel estimation (CE) includes estimating, by a processor, a power delay profile (PDP) from a time domain observation of reference signal (RS) channels; estimating, by the processor, a noise variance of the RS channels; and determining, by the processor, a first arrival path (FAP) value and a delay spread estimation (DSE) value based on the estimated PDP and the estimated noise variance for minimizing the MSE of CE.