Patents by Inventor Yinong Ding

Yinong Ding has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20090061766
    Abstract: A system and method for channel estimation and echo cancellation in wireless system repeaters. A repeater with improved echo cancellation comprises an input radio control element having a receiving antenna and an output radio control element having a transmitting antenna; a power amplifier connected between the input radio control element and the output radio control element; and a signal processing unit connected between the input radio control element and the output radio control element. The signal processing unit is configured to estimate the communication channel from the transmitting antenna to the receiving antenna to produce a channel estimation. The signal processing unit is further configured to perform echo cancellation based on the channel estimation.
    Type: Application
    Filed: August 28, 2008
    Publication date: March 5, 2009
    Applicant: SAMSUNG ELECTRONICS Co., LTD.
    Inventors: Yinong Ding, Cornelius Van Rensburg, Joseph R. Cleveland
  • Publication number: 20090028264
    Abstract: In this invention, several open-loop solutions that encompass the small delay CDD codeword cycling, codeword cycling between different re-transmissions of both small and large delay CDD are proposed. In addition, an open-loop codeword cycling method for SFBC+FSTD scheme, as well as its extension to SFBC+FSTD based HARQ, are proposed. In one method, a plurality of information bits are encoded, scrambled and modulated to generate a plurality of modulation symbols. The plurality of modulation symbols are mapped onto the subcarriers in at least one transmission layer of a transmission resource. The modulation symbols are then precoded by using a matrix for cyclic delay diversity and a set of codewords from a certain codebook to generate a plurality of precoded symbols. The codewords are cycled for every a certain number of subcarriers. Finally, the precoded symbols are transmitted via a plurality of transmission antennas.
    Type: Application
    Filed: June 2, 2008
    Publication date: January 29, 2009
    Inventors: Jianzhong Zhang, Cornelius Van Rensburg, Farooq Khan, Yinong Ding
  • Publication number: 20080273452
    Abstract: A method for transmission is provided to generate a plurality of reference signals for a plurality of antenna ports, with each reference signal corresponding to an antenna port; to map the plurality of reference signals to a plurality of physical antennas in accordance with a selected antenna port mapping scheme, with each reference signal corresponding to a physical antenna, and the plurality of physical antennas being aligned sequentially with equal spacing between two immediately adjacent physical antennas; to demultiplex information to be transmitted into a plurality of stream blocks; to insert a respective cyclic redundancy check to each of the stream blocks; to encode each of the stream blocks according to a corresponding coding scheme; to modulate each of the stream blocks according to a corresponding modulation scheme; to demultiplex the stream blocks to generate a plurality of sets of symbols, with each stream block being demultiplexed into a set of symbols; to map the plurality of sets of symbols in
    Type: Application
    Filed: January 11, 2008
    Publication date: November 6, 2008
    Inventors: Farooq Khan, Jiann-An Tsai, Jianzhong Zhang, Yinong Ding
  • Publication number: 20080240028
    Abstract: A wireless terminal capable of communicating with a wireless communication system comprised of a plurality of wireless terminals and a plurality of base stations. The wireless terminal selects a sequence from a group of certain sequences for random access. At least one sub-carriers on an uplink channel including at least one data channel is allocated for at least one random access channel. Each data channel includes a continuous set of data sub-carriers. The wireless terminal then filters the at least one random access channel by applying a Raised Cosine filter, maps the selected sequence to the at least one random access channel to generate a random access channel signal, and transmits the random access channel signal to a base station.
    Type: Application
    Filed: January 7, 2008
    Publication date: October 2, 2008
    Inventors: Yinong Ding, Farooq Khan
  • Publication number: 20080232489
    Abstract: A method for transmission is provided to include demultiplexing information to be transmitted into a plurality of stream blocks, encoding each of the stream blocks according to a corresponding coding scheme to generate a plurality of encoded streams, interleaving the plurality of encoded streams in a bit-level to generate a plurality of bit-level interleaved streams, modulating each of the bit-level interleaved streams according to a corresponding modulation scheme to generate a plurality of modulated symbol streams, interleaving the plurality of modulated symbol streams in a symbol-level to generate a plurality of symbol-level interleaved streams, precoding the plurality of symbol-level interleaved streams according to a precoding scheme to generate a plurality of precoded streams, and transmitting the plurality of precoded streams via a plurality of antennas.
    Type: Application
    Filed: January 16, 2008
    Publication date: September 25, 2008
    Inventors: Jiannan Tsai, Farooq Khan, Cornelius Van Rensburg, Zhouyue Pi, Yinong Ding
  • Publication number: 20080232307
    Abstract: A method and apparatus for transmission between a plurality of units of user equipment and a base station in a wireless communication system. For each of the units of user equipment, a plurality of control channel elements are mapped to a plurality of downlink acknowledgement channel resources in accordance with a first mapping scheme, and the plurality of control channel elements are mapped to a plurality of uplink acknowledgement channel resources in accordance with a second mapping scheme. The first mapping scheme and the second mapping scheme may be different for different units of user equipment. Alternatively, the first mapping scheme and the second mapping scheme may change over time.
    Type: Application
    Filed: March 10, 2008
    Publication date: September 25, 2008
    Inventors: Zhouyue Pi, Farooq Khan, Jiannan Tsai, Cornelius Van Rensburg, Yinong Ding
  • Publication number: 20080151831
    Abstract: A multi-user, multiple input, multiple output network and process for transmitting data in a communication system encompassing multiple users, contemplates the steps of: a first user transmitting a first transmission frame to a base transceiver station while a second user simultaneously transmits a third transmission frame to the base station; the first and second users simultaneously transmit a second transmission frame and a fourth transmission frames respectively to the base station, with the second transmission frame being an orthogonally spread version of the first transmission frame, and the fourth transmission frame being an orthogonally spread version of the second transmission frame.
    Type: Application
    Filed: June 1, 2007
    Publication date: June 26, 2008
    Inventors: Farooq Khan, Cornelius Van Rensburg, Zhouyue Pi, Jiann-An Tsai, Yinong Ding
  • Patent number: 7391256
    Abstract: The present disclosure relates generally to systems and methods for direct current (DC) correction in wireless devices. In one example, a method includes setting a cutoff frequency of a filter at a first frequency, where a signal entering the filter is attenuated based on the cutoff frequency. If a qualified change is detected in a DC component of the signal, the cutoff frequency is set at a second frequency that attenuates more of the signal than the first frequency for a defined time period. The cutoff frequency may then be set to the first frequency after the defined time period.
    Type: Grant
    Filed: September 18, 2006
    Date of Patent: June 24, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: William Milton Hurley, Lup Meng Loh, Yinong Ding, Michael L. Brobston, John Alexander Interrante
  • Publication number: 20080146166
    Abstract: A system, a receiver apparatus, a transmitter apparatus and a method for inter-user interference cancellation when simultaneous transmissions from two wireless users to the same base station are repeated using the same time-frequency resource. The percentage of interference cancellation is pre-set and phase shifts of the first and repeated transmitted symbols for each mobile user are determined in accordance with this pre-set percentage. The receiver uses a pre-determined technique for estimating the received symbols in accordance with the pre-set percentage and phase shifts.
    Type: Application
    Filed: July 31, 2007
    Publication date: June 19, 2008
    Inventors: Farooq Khan, Cornelius Van Rensburg, Zhouyue Pi, Jiann-An Tsai, Yinong Ding
  • Publication number: 20080090541
    Abstract: A system and method for minimizing a DC component of a received signal are disclosed. As one example, a system for minimizing a DC component of a signal in a wireless receiver is disclosed, which includes a programmable filter operable to filter the signal with at least one of a low cutoff frequency and a high cutoff frequency, and a transition unit coupled to the programmable filter, the transition unit operable to transition the programmable filter between the high cutoff frequency and the low cutoff frequency.
    Type: Application
    Filed: October 13, 2006
    Publication date: April 17, 2008
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: William M. Hurley, Lup Meng Loh, Yinong Ding, WeonKi Yoon, Michael L. Brobston, John Alexander Interrante, Jordan Charles Mott
  • Publication number: 20080080637
    Abstract: A base station capable of performing precoding in a wireless communication system is provided. The base station includes a plurality of codebooks and a codebook selector. Each codebook comprises a plurality of composite precoding matrices that are generated based on a corresponding diversity precoding matrix. The codebook selector is operable to select one of the codebooks for use in a communication session with a subscriber station.
    Type: Application
    Filed: July 3, 2007
    Publication date: April 3, 2008
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Farooq Khan, Jiann-An Tsai, Cornelius van Rensburg, Yinong Ding
  • Publication number: 20080079498
    Abstract: The present disclosure relates generally to systems and methods for direct current (DC) correction in wireless devices. In one example, a method includes setting a cutoff frequency of a filter at a first frequency, where a signal entering the filter is attenuated based on the cutoff frequency. If a qualified change is detected in a DC component of the signal, the cutoff frequency is set at a second frequency that attenuates more of the signal than the first frequency for a defined time period. The cutoff frequency may then be set to the first frequency after the defined time period.
    Type: Application
    Filed: September 18, 2006
    Publication date: April 3, 2008
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: William Milton Hurley, Lup Meng Loh, Yinong Ding, Michael L. Brobston, John Alexander Interrante
  • Publication number: 20070248076
    Abstract: A method and system for improving frame synchronization, channel estimation and access in a wireless network are disclosed. As one example, a method for improving frame synchronization and channel estimation in a wireless network is disclosed. The method includes the steps of generating a first preamble for a frame, generating a false control message for the frame, and scheduling a quiet interval for the frame.
    Type: Application
    Filed: April 17, 2007
    Publication date: October 25, 2007
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Baowei Ji, Yinong Ding, David Mazzarese
  • Publication number: 20070230382
    Abstract: A method for decoding a plurality of data streams from a combined data stream in a Multiple Input/Multiple Output (MIMO) system is provided. The method includes selecting a decoding order for the data streams based on a decoding prediction metric for each of the data streams and decoding the data streams based on the decoding order.
    Type: Application
    Filed: November 2, 2006
    Publication date: October 4, 2007
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yinong Ding, Farooq Khan
  • Publication number: 20070223419
    Abstract: A method and system for sharing spectrum in a wireless communications network are disclosed. As one example, a method for sharing spectrum is disclosed, which includes the steps of determining if two base stations in the wireless communications network are to share a frequency spectrum, and if two base stations in the wireless communications network are to share a frequency spectrum, determining if the two base stations in the wireless communications network have non-overlapping wireless communications coverage.
    Type: Application
    Filed: February 5, 2007
    Publication date: September 27, 2007
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Baowei Ji, Yinong Ding, William Joseph Semper
  • Publication number: 20070226576
    Abstract: A method and apparatus for channel sensing in a wireless communication device is provided. A self-signal intentionally transmitted to a first wireless device by another wireless communication device is detected in a signal received by the first wireless device. An original self-signal transmitted by the second wireless device is reconstructed from the detected self-signal. The reconstructed self-signal is then suppressed in the received signal and channel sensing is performed on the remaining signal. If the self-signal cannot be detected and verified in the received signal, the second wireless device may be requested to retransmit a modified self-signal and a predetermined number of attempts made to detect and verify the self-signal. Results of channel estimation performed on the received signal may be used in reconstructing the original self-signal. The channel estimation may include information from a plurality of frames in the received signal.
    Type: Application
    Filed: December 12, 2006
    Publication date: September 27, 2007
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Baowei Ji, Yinong Ding
  • Publication number: 20070183380
    Abstract: In a wireless network comprising a plurality of subscriber stations and a base station capable of providing service to the subscriber stations, a subscriber station is provided that includes a rank selector and a scheduling data reporter. The rank selector is operable to select a rank for the subscriber station. The rank is operable to identify a number of antennas for transmitting data streams from the base station to the subscriber station. The scheduling data reporter is operable to report scheduling data, including the rank, to the base station.
    Type: Application
    Filed: January 5, 2007
    Publication date: August 9, 2007
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Cornelius van Rensburg, Yinong Ding, Farooq Khan, Jiann-An Tsai
  • Publication number: 20070165726
    Abstract: A base station comprising an antenna array including M antennas for transmitting data to a plurality of subscriber stations. The base station generates a first pilot signal preamble by adding a first cyclic prefix to a first pilot signal sequence and generates a second pilot signal preamble by adding a second cyclic prefix to a second pilot signal sequence. The second pilot signal sequence is a circularly shifted copy of the first pilot signal sequence. The first pilot signal preamble is transmitted from a first antenna and the second pilot signal preamble is transmitted from a second antenna concurrently with transmission of the first preamble.
    Type: Application
    Filed: December 9, 2005
    Publication date: July 19, 2007
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yinong Ding, Farooq Khan, Cornelius van Rensburg
  • Publication number: 20070140190
    Abstract: A method of uplink scheduling in an Orthogonal Frequency Division Multiple Access network is provided. The method includes classifying each of a plurality of users as one of an exploration user and a utilization user. The users are then scheduled based on the classification of each of the users as one of an exploration user and a utilization user.
    Type: Application
    Filed: December 21, 2005
    Publication date: June 21, 2007
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Cornelius Rensburg, Yinong Ding, Farooq Khan
  • Publication number: 20070135166
    Abstract: A base station is disclosed for communicating with a subscriber station in a wireless network without requiring training signaling overhead. The base station is capable of combining a pilot signal with a data symbol and transmitting the combined pilot signal and data symbol to the subscriber station. A power level of the pilot signal is below a power level of the data symbol. The base station may be a single-input, single-output (SISO) antenna system or a multiple-input, multiple-output (MIMO) antenna system.
    Type: Application
    Filed: December 9, 2005
    Publication date: June 14, 2007
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yinong Ding, Cornelius van Rensburg, Farooq Khan