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Hongsan Sheng

from San Diego, CA
Age ~55
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Also known as:
Harry Sheng, Ying Sheng, Sheng Hongsan, N Sheng
Phone and address:
10209 Sienna Ridge Pl, San Diego, CA 92127
Related to:
Ying Han, 51
Connected to:
Aaron Sheng, 31Alex K Sheng, 61Austin L Sheng, 32Bin Sheng, 58Christine I Sheng, 54Dawei Sheng, 60Hainan Sheng, 39Henry P Sheng, 93Holly C Sheng, 46Hsueh Sheng, 46

Hongsan Sheng Phones & Addresses

  • 10209 Sienna Ridge Pl, San Diego, CA 92127
  • 8449 Christopher Ridge Ter, San Diego, CA 92127
  • Wake Forest, NC
  • 665 Sunderland Ave, Chester Springs, PA 19425 (610) 988-0231
  • 311 Bill Smith Blvd, King of Prussia, PA 19406 (610) 337-5821
  • 1621 Sparrow Way, Bensalem, PA 19020 (215) 245-5085
  • Newark, NJ
  • Union City, NJ
  • Chester, PA
  • Hoboken, NJ

Resumes

Resumes

Hongsan Sheng Photo 1

Engineer, Senior Staff

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Location:
San Diego, CA
Industry:
Semiconductors
Work:
InterDigital Communications LLC since May 2005
Senior Staff Engineer, Advanced Air Interface (formerly Air Interface & RF Systems, Core Technology)
Mitsubishi Electric Research Laboratories (MERL) Feb 2002 - Apr 2004
Visiting Research Associate (Intern)
Motorola 2000 - 2000
Business Development Manager
SK Telecom China 1997 - 2000
Business Initiative Representative
China Unicom 1995 - 1997
System Engineer
Education:
New Jersey Institute of Technology 2001 - 2005
PhD, Communications and signal processing Xidian University
Skills:
Lte
Ofdm
Mimo
Signal Processing
Wireless
Digital Signal Processors
Wcdma
3Gpp
Phy
Matlab
Simulations
C++
Wimax
Cdma
C
Mobile Devices
Embedded Systems
Modems
Hspa
Baseband
Rf
4G
Umts
Simulink
Clearcase
Hsupa
Wireless Communications Systems
Ieee 802.11
Perl
Hsdpa
Communication Systems
Lte Advanced
2.5G
Mac
Beamforming
Backhaul
Uwb
Dsp
Channel Coding
Rake
Is 95
Femtocell
Simulation
D2D
Spw
Relays
Ue2Ue
Equalizers
Tms320
Languages:
English
Mandarin
Hongsan Sheng Photo 2

Hongsan Sheng

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Publications

Us Patents

Method And Apparatus For Compressing Channel State Information Based On Path Location Information

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US Patent:
20130201912, Aug 8, 2013
Filed:
May 18, 2011
Appl. No.:
13/698927
Inventors:
Hongsan Sheng - Chester Springs PA, US
Yingxue K. Li - Exton PA, US
Philip J. Pietraski - Huntington Station NY, US
Carl Wang - Melville NY, US
Ron Porat - San Diego CA, US
Assignee:
INTERDIGITAL PATENT HOLDINGS, INC. - Wilmington DE
International Classification:
H04W 28/20
US Classification:
370328
Abstract:
Methods and apparatus are described for compressing channel state information (CSI) in time-domain based on path location information for CSI feedback. Downlink (DL) CSI is compressed in the time domain and fed back by not sending the multipath location information, or sending at a very low rate. In one method, a wireless transmit/receive unit (WTRU) selects the strongest multipath components based on channel characteristics. The multipath components are quantized in the time domain via direct or vector based quantization. The base station reconstructs a channel impulse response from the fed back quantized multipath components and applies same to precoding processing. In another method, the WTRU feeds back information associated with a narrowband portion(s) of a system spectrum. The selected narrowband portion(s) have sufficient density over time to allow good precoding per subband or across the system spectrum. Short term feedback may be augmented with long term channel information.

Iterative Nonlinear Precoding And Feedback For Multi-User Multiple-Input Multiple-Output (Mu-Mimo) With Channel State Information (Csi) Impairments

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US Patent:
20130223555, Aug 29, 2013
Filed:
Sep 1, 2011
Appl. No.:
13/820335
Inventors:
Hongsan Sheng - Chester Springs PA, US
Yingxue K. Li - San Diego CA, US
Assignee:
INTERDIGITAL PATENT HOLDINGS, INC. - Wilmington DE
International Classification:
H04B 7/04
US Classification:
375267
Abstract:
An iterative nonlinear preceding method based on, for example. Tomlinson-Harashima Preceding (THP) may be implemented in a MU-MIMO system to alleviate the performance degradation due to mismatches between actual Channel State Information (CSI) and impaired CSI available at a transmitter. In such a method, the effective channel may be fed back rather than a nonprecoded channel for a relay backhaul channel such that the iterative precoding and effective channel feedback may reduce the sensitivity to quantization errors and improve spectrum usage efficiency. Additionally, a Channel Quality Indicator (CQI) may be used to estimate a signal-to-interference-plus-noise (SINK) ratio based on quantization errors to accurately derive the effective channel quality of the receiver.

Device-To-Device (D2D) Link Adaptation

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US Patent:
20130322276, Dec 5, 2013
Filed:
May 30, 2013
Appl. No.:
13/905885
Inventors:
Paul Marinier - Brossard, CA
Hongsan Sheng - Chester Springs PA, US
Kiran K. Vanganuru - King of Prussia PA, US
Diana Pani - Montreal, CA
International Classification:
H04W 72/08
US Classification:
370252
Abstract:
Channel quality may be measured in a device-to-device (D2D) communication network. The D2D communication network may include one or more D2D wireless transmit/receive units (WTRUs), wherein the D2D WTRUs may communicate using a D2D bandwidth. A D2D WTRU may receive a channel measurement resource configuration corresponding to a channel measurement resource. The D2D WTRU may further receive an RS on the channel measurement resource. The D2D WTRU may measure one or more channel state parameters from the channel measurement resource for a part of bandwidth overlapping with a D2D communication bandwidth, when the RS bandwidth is greater than the D2D communication bandwidth. The D2D WTRU may report the channel state parameters to a controlling entity. The controlling entity may configure a D2D frequency allocation between a transmitting device and a receiving device. The D2D frequency allocation may be based on the time averaged measurement.

Measurements And Interference Avoidance For Device-To-Device Links

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US Patent:
20130322277, Dec 5, 2013
Filed:
May 30, 2013
Appl. No.:
13/906193
Inventors:
Hongsan Sheng - Chester Springs PA, US
Gregory S. Sternberg - Mt. Laurel NJ, US
Tao Deng - Roslyn PA, US
Balaji Raghothaman - Chester Springs PA, US
Ravikumar V. Pragada - Collegeville PA, US
Zhuorong Deng - Brooklyn NY, US
Steven Ferrante - Doylestown PA, US
Paul Marinier - Brossard, CA
Benoit Pelletier - Montreal, CA
Diana Pani - Montreal, CA
International Classification:
H04W 24/08
US Classification:
370252
Abstract:
Disclosed herein are measurement and interference avoidance for direct device-to-device (D2D) links. A method may be implemented by a wireless transmit/receive unit (WTRU). The method may include determining a sounding reference signal (SRS) to detect high interference and facilitate measurements on a link with another WTRU. The method may also include using the SRS on a direct link with another WTRU.

Systems And Methods For Improving Channel Quality Indication Feedback Accuracy In Wireless Communication

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US Patent:
20130343215, Dec 26, 2013
Filed:
Dec 2, 2011
Appl. No.:
13/991118
Inventors:
Yingxue K. Li - San Diego CA, US
Philip J. Pietraski - Huntington Station NY, US
Joseph S. Levy - Merrick NY, US
Hongsan Sheng - Chester Springs PA, US
Assignee:
INTERDIGITAL PATENT HOLDINGS, INC. - Wilmington DE
International Classification:
H04W 72/08
US Classification:
370252, 370329
Abstract:
Systems and methods for channel quality indicator (CQI) feedback may be disclosed. At a current transmission time interval, precoder and/or modulation information that may be used at or associated with a future transmission time interval may be determined. As such, at a current transmission time interval, precoder and/or modulation information that may be used to select a modulation or coding scheme (MCS) and/or schedule transmission at a future transmission time interval may be predicted in the current transmission time interval. The precoder and/or modulation information may be broadcast and received such that the information may be used to estimate a channel quality indicator (CQI) at the current transmission time interval. The estimated CQI may be used to select a modulation and coding scheme (MCS), schedule transmissions, and the like.

Demodulation Reference Signal Based Channel State Information Feedback In Ofdm-Mimo Systems

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US Patent:
20110317748, Dec 29, 2011
Filed:
Jun 27, 2011
Appl. No.:
13/169529
Inventors:
Yingxue K. Li - Exton PA, US
Hongsan Sheng - Chester Springs PA, US
Guodong Zhang - Syosset NY, US
Philip J. Pietraski - Huntington Station NY, US
Assignee:
INTERDIGITAL PATENT HOLDINGS, INC. - Wilmington DE
International Classification:
H04B 1/38
US Classification:
375219
Abstract:
A method and apparatus for using demodulation reference signal (DM-RS) based channel state information (CSI) feedback in Orthogonal Frequency Division Multiplexing—multiple-input multiple-output (OFDM-MIMO) systems is disclosed. The wireless transmit/receive unit (WTRU) receives one or more resource blocks from a base station, wherein the resource blocks (RBs) include demodulating reference signals (DM-RS) and precoder information. The precoder information is sent unicast or broadcasted over a common control channel. The WTRU estimates an effective channel estimate based on the DM-RS, derives an unprecoded channel based on the effective channel and the precoder information, generates CSI feedback based on the unprecoded channel, and transmits the CSI feedback to the base station. Alternatively, the WTRU estimates an effective channel estimate based on the DM-RS, quantizes the effective channel estimate and transmits the CSI feedback to the base station.

Random Access Response Type Differentiation

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US Patent:
20210120594, Apr 22, 2021
Filed:
Oct 13, 2020
Appl. No.:
17/069584
Inventors:
- San Diego CA, US
Huilin Xu - San Diego CA, US
Yuanning Yu - Santa Clara CA, US
Hongsan Sheng - San Diego CA, US
Enoch Shiao-Kuang Lu - San Diego CA, US
Subramanya Rao - Sunnyvale CA, US
Omar Mehanna - San Diego CA, US
Linhai He - San Diego CA, US
Wanshi Chen - San Diego CA, US
International Classification:
H04W 74/08
H04W 72/04
Abstract:
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may receive configuration information that indicates a transmission parameter associated with a random access response (RAR) type; transmit a random access message associated with the RAR type; use the transmission parameter to obtain a physical downlink control channel (PDCCH) communication that schedules a physical downlink shared channel (PDSCH) communication that includes a RAR in a medium access control protocol data unit of the PDSCH communication; and obtain or refraining from obtaining the PDSCH communication based at least in part on whether the PDCCH communication is successfully obtained using the transmission parameter. Numerous other aspects are provided.

Timing Threshold For Cross-Carrier Scheduling With Different Subcarrier Spacings

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US Patent:
20210100021, Apr 1, 2021
Filed:
Sep 21, 2020
Appl. No.:
16/948485
Inventors:
- San Diego CA, US
Peter Pui Lok ANG - San Diego CA, US
Peter GAAL - San Diego CA, US
Aamod KHANDEKAR - San Diego CA, US
Yuanning YU - Santa Clara CA, US
Ruhua HE - San Diego CA, US
Alexandros MANOLAKOS - San Diego CA, US
Tao LUO - San Diego CA, US
Hongsan SHENG - San Diego CA, US
Yan ZHOU - San Diego CA, US
International Classification:
H04W 72/12
H04W 72/04
Abstract:
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, on a first carrier having a first subcarrier spacing (SCS), a scheduling indication via a physical downlink control channel (PDCCH) scheduling a downlink transmission on a second carrier having a second SCS. The UE may process the downlink transmission on the second carrier based at least in part on a delay between the PDCCH and the scheduled downlink transmission and a timing threshold having a basic term and an adjustment term. For example, the basic term may be based at least in part on a minimum delay between the PDCCH and the scheduled downlink transmission, and the adjustment term may be based at least in part on a processing time due to a difference between the first SCS and the second SCS. Numerous other aspects are provided.
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Hongsan Sheng from San Diego, CA, age ~55 Get Report