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Yingqun Yu

from San Diego, CA
Age ~49
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Also known as:
Xu Yu Yingqun, Ying Qun Yu, Yu Yingqun
Phone and address:
10532 Blue Granite Dr, San Diego, CA 92127
Related to:
Hong Xia, 62Che ChenWeizhu Yu, 59Seongkyu Yu, 37Rong G Diao, 60Sherry ZhaoYuchao Zhao, 52Yin Chen, 51Jia Yuan, 45Jasmine JiangYuqin Shi, 80Zhaoning Yu, 52Hairong Chang, 47Teyu Chen, 42Yu U Zhao, 51
Connected to:
Ai L Yu, 75Aihong Yu, 51Ana R Yu, 80Angelica M Yu, 29Angie Yu, 62Anhua Yu, 51Annette A Yu, 78Bang W Yu, 93Baojian Yu, 65Bean H Yu, 35

Yingqun Yu Phones & Addresses

  • 10532 Blue Granite Dr, San Diego, CA 92127
  • Saint Paul, MN
  • 415 Erie St, Minneapolis, MN 55414
  • Raleigh, NC

Resumes

Resumes

Yingqun Yu Photo 1

Wireless Algorithm And System Engineer

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Location:
10532 Blue Granite Dr, San Diego, CA 92127
Industry:
Consumer Electronics
Work:
Samsung R&D Center - Greater San Diego Area since Feb 2011
Senior Staff Engineer
Qualcomm May 2007 - Jan 2011
Senior System Engineer
University of Minnesota Jun 2002 - May 2007
Research Assistant
DSP Group, Inc. 2006 - 2006
Intern, system engineer
DTMobile May 2003 - Aug 2003
System Engineer
Education:
University of Minnesota-Twin Cities 2007
Doctor of Philosophy (PhD) North Carolina State University 2000 - 2002
ms, Electrical Engineering Tsinghua University 1997 - 2000
MS, Electrical Engineering Nanjing University 1993 - 1997
BS, Electrical Engineering
Skills:
Ofdm
Mimo
Algorithms
4G
Signal Processing
Phy
Digital Signal Processors
Simulations
Wlan
Wireless
Hardware Architecture
Cdma
3G
Wireless Networking
Ofdma
Wcdma
Modems
Orthogonal Frequency Division Multiplexing
Asic
Interference Mitigation
Wimax
Wifi
Lte
Channel Estimation
Iterative
Interference Cancellation
Interests:
Children
Education
Languages:
English
Certifications:
Machine Learning
License 8Ewn3Y4Pkrcw
Coursera Course Certificates, License 8Ewn3Y4Pkrcw
Yingqun Yu Photo 2

Yingqun Yu

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Publications

Us Patents

Method And System For Interference Cancellation

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US Patent:
8451963, May 28, 2013
Filed:
Jun 9, 2009
Appl. No.:
12/481203
Inventors:
Wenjun Li - San Diego CA, US
Farrokh Abrishamkar - San Diego CA, US
Yingqun Yu - San Diego CA, US
Assignee:
QUALCOMM Incorporated - San Diego CA
International Classification:
H03D 1/04
H03D 1/06
H03K 5/01
H03K 6/04
H04B 1/10
H04L 1/00
H04L 25/08
US Classification:
375346, 375285, 375316
Abstract:
Systems and methods for interference cancellation at a receiver in a wireless communication system are provided. In one aspect, a method for interference cancellation is provided. The method comprises providing total received chips received from a plurality of cells. The method also comprises successively estimating received chips for each of the plurality of cells in a plurality of iterations, wherein each of the plurality of iterations after a first iteration comprises canceling previously estimated received chips for one or more of the plurality of cells from the total received chips, and estimating received chips for one of the plurality of cells using the total received chips with the previously estimated received chips for the one or more of the plurality of cells cancelled out.

Method And System For Multi-User Detection In The Presence Of Multiple Spreading Factors

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US Patent:
8494029, Jul 23, 2013
Filed:
May 4, 2009
Appl. No.:
12/435136
Inventors:
Yingqun Yu - San Diego CA, US
Wenjun Li - San Diego CA, US
Ferrokh Abrishamkar - San Diego CA, US
Prashant Udupa Sripathi - San Jose CA, US
Assignee:
Qualcomm Incorporated - San Diego CA
International Classification:
H03D 1/04
US Classification:
375148
Abstract:
Methods and systems for multi-user detection in the presence of multiple spreading factors are provided. In one aspect of the disclosure, an apparatus is provided. The apparatus comprises an interference computation unit configured to compute a combined interference based on detected user symbols for a first spreading factor and detected user symbols for a second spreading factor, wherein the combined interference accounts for multi-user interference from user symbols for the first and second spreading factors. The apparatus further comprises an interference cancellation unit configured to remove the computed combined interference from a plurality of received symbols corresponding to the first spreading factor and a redetection unit configured to redetect the user symbols for the first spreading factor from the plurality of received symbols with the computed combined interference removed.

Method And System For Inter-Cell Interference Cancellation

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US Patent:
8494098, Jul 23, 2013
Filed:
May 4, 2009
Appl. No.:
12/435085
Inventors:
Farrokh Abrishamkar - San Diego CA, US
Yingqun Yu - San Diego CA, US
Wenjun Li - San Diego CA, US
Assignee:
Qualcomm Incorporated - San Diego CA
International Classification:
H04B 1/7097
US Classification:
375346, 375148
Abstract:
Systems and methods for inter-cell interference cancellation are provided. In one aspect of the disclosure, an apparatus is provided. The apparatus comprises a cell computation unit configured to compute receive chips for a first interfering cell and a subtraction unit configured to remove the computed receive chips for the first interfering cell from received chips at a receiver. The apparatus further comprises a processing unit configured to process the received chips with the computed receive chips for the first interfering cell removed into received symbols and a detection unit configured to detect user symbols for a target cell from the received symbols.

Apparatus And Method For Channel Estimation Using Compressive Sensing Based On Taylor Series Expansion

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US Patent:
8582674, Nov 12, 2013
Filed:
Nov 19, 2010
Appl. No.:
12/950435
Inventors:
Yingqun Yu - San Diego CA, US
Farrokh Abrishamkar - San Diego CA, US
Ni-Chun Wang - San Diego CA, US
Ori Shental - Haifa, IL
Assignee:
QUALCOMM Incorporated - San Diego CA
International Classification:
H04L 27/28
US Classification:
375260
Abstract:
An apparatus and method for channel estimation comprising determining a channel impulse response using a Taylor series expansion with a plurality of Taylor series coefficients; determining a channel frequency response based on the channel impulse response; collecting the channel frequency response over a plurality of symbols to obtain a composite channel frequency response; generating a sensing matrix based on the Taylor series expansion; and determining the plurality of Taylor series coefficients based on the composite channel frequency response and the sensing matrix using compressive sensing channel estimation.

Method And System For Multi-User Detection Using Two-Stage Processing

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US Patent:
8599677, Dec 3, 2013
Filed:
May 4, 2009
Appl. No.:
12/435114
Inventors:
Wenjun Li - San Diego CA, US
Yingqun Yu - San Diego CA, US
Farrokh Abrishamkar - San Diego CA, US
Divaydeep Sikri - Woking, GB
Insung Kang - San Diego CA, US
Assignee:
Qualcomm Incorporated - San Diego CA
International Classification:
H04J 11/00
US Classification:
370209
Abstract:
Systems and methods for multi-user detection in a multiple access system are provided. In one aspect, an apparatus is provided. The apparatus comprises a processing unit configured to process received chips into received symbols for a plurality of users and a computation unit configured to compute a multi-user matrix using a Hadamard matrix, wherein the multi-user matrix relates user symbols for the plurality of users to the received symbols. The apparatus further comprises a detection unit configured to detect the user symbols for the plurality of users using the received symbols and the computed multi-user matrix.

Method And System For Multi-User Detection Using Two-Stage Processing

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US Patent:
8615030, Dec 24, 2013
Filed:
May 4, 2009
Appl. No.:
12/435039
Inventors:
Farrokh Abrishamkar - San Diego CA, US
Yingqun Yu - San Diego CA, US
Michael McCloud - San Diego CA, US
Divaydeep Sikri - Woking, GB
Assignee:
Qualcomm Incorporated - San Diego CA
International Classification:
H04B 1/7105
US Classification:
375148
Abstract:
Systems and methods for multi-user detection are provided. In one aspect of the disclosure, an apparatus is provided. The apparatus comprises a processing unit configured to process a plurality of received chips into a plurality of received symbols for a plurality of users. The apparatus further comprises a computation unit configured to compute a multi-user matrix relating a plurality of user symbols for the plurality of users to the plurality of received symbols and a detection unit configured to detect the plurality of user symbols for the plurality of users using the computed multi-user matrix and the plurality of received symbols.

Apparatus And Method For Compressive Sensing Tap Identification For Channel Estimation

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US Patent:
8644402, Feb 4, 2014
Filed:
Nov 19, 2010
Appl. No.:
12/950452
Inventors:
Farrokh Abrishamkar - San Diego CA, US
Ni-Chun Wang - San Diego CA, US
Ori Shental - Haifa, IL
Yingqun Yu - San Diego CA, US
Assignee:
QUALCOMM, Incorporated - San Diego CA
International Classification:
H04K 1/10
US Classification:
375260, 375259, 375262, 375267, 375295, 375316
Abstract:
An apparatus and method for compressive sensing tap identification for channel estimation comprising identifying a set of significant taps in the time domain; representing a time-flat channel response using a Taylor series expansion with the set of significant taps; converting the time-flat channel response to a vectorized channel response; transforming the vectorized channel response to a compressive sensing (CS) polynomial frequency response; aggregating the CS polynomial frequency response into a stacked frequency response; converting the stacked frequency response into a measured pilot frequency response; estimating a channel parameter vector based on the measured pilot frequency response; and generating a reconstructed channel response from the channel parameter vector.

Method And System For Data-Aided Channel Estimation

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US Patent:
20100278167, Nov 4, 2010
Filed:
May 4, 2009
Appl. No.:
12/435104
Inventors:
Yingqun Yu - San Diego CA, US
Farrokh Abrishamkar - San Diego CA, US
Assignee:
QUALCOMM Incorporated - San Diego CA
International Classification:
H04B 1/707
H04B 7/216
US Classification:
370342, 375E01002, 375147
Abstract:
Systems and methods for data-aided channel estimation are provided. In one aspect of the disclosure, a channel estimation apparatus is provided. The apparatus comprises a first processing unit configured to process received chips into received symbols and a detection unit configured to detect user symbols from the received symbols. The apparatus further comprises a second processing unit configured to process the detected user symbols into estimated transmit chips and a channel computation unit configured to estimate a channel based on the estimated transmit chips and the received chips.
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Yingqun Yu from San Diego, CA, age ~49 Get Report