Patents by Inventor Yunxiang Yao

Yunxiang Yao 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).

  • Patent number: 11611987
    Abstract: Described is a method and device for detecting a discontinuous transmission (DTX) state or a partial DTX state at an uplink control information (UCI) receiver in a wireless communication system. The method comprises receiving a linear block encoded signal on an uplink (UL) at said UCI receiver and processing said signal after resource element (RE) demapping to obtain a soft bit sequence. The soft bit sequence is then transformed into multiple sub-sequences. Correlation metrics are determined for two or more of the multiple sub-sequences or two or more sub-sequence groups derived from the multiple sub-sequences or sequence segments derived from the sub-sequence groups. Then, a determination is made if a DTX state has occurred by evaluating the determined correlation metrics.
    Type: Grant
    Filed: January 5, 2021
    Date of Patent: March 21, 2023
    Assignee: Hong Kong Applied Science and Technology Research Institute Co., Ltd
    Inventors: Yaming Luo, Yunxiang Yao, Man Wai Kwan, Xiangyu Liu, Shuaimin Jiang, Kong Chau Tsang
  • Patent number: 11457502
    Abstract: Described is a method and device for detecting a discontinuous transmission state (DTX) at an uplink control information (UCI) receiver device in a wireless communication system. The method involves receiving a linear block encoded signal on an uplink (UL) at said UCI receiver device and processing the received linear block encoded signal after resource element (RE) dernapping to obtain channel estimation data. The method includes determining from said channel estimation data a DTX metric for one or more selected resource blocks (RBs) and determining if a DTX state has occurred by comparing the determined DTX metric to a calculated, selected, or predetermined threshold.
    Type: Grant
    Filed: February 9, 2021
    Date of Patent: September 27, 2022
    Assignee: Hong Kong Applied Science And Technology Research Institute Co., Ltd
    Inventors: Yaming Luo, Yunxiang Yao, Man Wai Kwan, Xiangyu Liu, Yiu Wing Edwin Chan, Kong Chau Tsang
  • Publication number: 20220256642
    Abstract: Described is a method and device for detecting a discontinuous transmission state (DTX) at an uplink control information (UCI) receiver device in a wireless communication system. The method involves receiving a linear block encoded signal on an uplink (UL) at said UCI receiver device and processing the received linear block encoded signal after resource element (RE) dernapping to obtain channel estimation data. The method includes determining from said channel estimation data a DTX metric for one or more selected resource blocks (RBs) and determining if a DTX state has occurred by comparing the determined DTX metric to a calculated, selected, or predetermined threshold.
    Type: Application
    Filed: February 9, 2021
    Publication date: August 11, 2022
    Inventors: Yaming Luo, Yunxiang Yao, Man Wai Kwan, Xiangyu Liu, Yiu Wing Edwin Chan, Kong Chau Tsang
  • Publication number: 20220217714
    Abstract: Described is a method of processing a signal received at an uplink control information (UCI) receiver in a wireless communication system. The method comprises processing a signal received on an uplink (UL) at said UCI receiver to transform said received signal into a likelihood calculation of possible transmitted codewords (?1 . . . ?i . . . ?N) and determining a maximum magnitude ?max value from said likelihood calculation. The method includes comparing said maximum magnitude ?max value to a selected, calculated or predetermined scaled threshold S·? where ? is a threshold and S is a scaling factor for the threshold ?. The comparison step is such that, where |?max|2>S·?, the method comprises determining that the signal received comprises a linear block encoded signal. In the method, prior to said comparison step, the scaling factor S is selected from a plurality of scaling factor options.
    Type: Application
    Filed: January 7, 2021
    Publication date: July 7, 2022
    Inventors: Yaming Luo, Yunxiang Yao, Man Wai Kwan, Xiangyu Liu, Ying Lun Tsui, Kong Chau Tsang
  • Publication number: 20220217710
    Abstract: Described is a method and device for detecting a discontinuous transmission (DTX) state or a partial DTX state at an uplink control information (UCI) receiver in a wireless communication system. The method comprises receiving a linear block encoded signal on an uplink (UL) at said UCI receiver and processing said signal after resource element (RE) demapping to obtain a soft bit sequence. The soft bit sequence is then transformed into multiple sub-sequences. Correlation metrics are determined for two or more of the multiple sub-sequences or two or more sub-sequence groups derived from the multiple sub-sequences or sequence segments derived from the sub-sequence groups. Then, a determination is made if a DTX state has occurred by evaluating the determined correlation metrics.
    Type: Application
    Filed: January 5, 2021
    Publication date: July 7, 2022
    Inventors: Yaming Luo, Yunxiang Yao, Man Wai Kwan, Xiangyu Liu, Shuaimin Jiang, Kong Chau Tsang
  • Patent number: 11375486
    Abstract: Described is a method of processing a signal received at an uplink control information (UCI) receiver in a wireless communication system. The method comprises processing a signal received on an uplink (UL) at said UCI receiver to transform said received signal into a likelihood calculation of possible transmitted codewords (?1 . . . ?i . . . ?N) and determining a maximum magnitude ?max value from said likelihood calculation. The method includes comparing said maximum magnitude ?max value to a selected, calculated or predetermined scaled threshold S·? where ? is a threshold and S is a scaling factor for the threshold ?. The comparison step is such that, where |?max|2>S·?, the method comprises determining that the signal received comprises a linear block encoded signal. In the method, prior to said comparison step, the scaling factor S is selected from a plurality of scaling factor options.
    Type: Grant
    Filed: January 7, 2021
    Date of Patent: June 28, 2022
    Assignee: Hong Kong Applied Science And Technology Research Institute Co., Ltd
    Inventors: Yaming Luo, Yunxiang Yao, Man Wai Kwan, Xiangyu Liu, Ying Lun Tsui, Kong Chau Tsang