Patents by Inventor Yuyi Mao

Yuyi Mao 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: 11323986
    Abstract: Described is a method of decoding a physical sidelink control channel (PSCCH). The method comprises: for a PSCCH candidate in a resource grid, processing a received demodulation reference signal (DMRS) in a subframe of the resource grid associated with the PSCCH candidate to determine one or more potential PSCCHs for decoding, each of the one or more potential PSCCHs being identified by resource block (RB) position in the resource grid and a corresponding DMRS cyclic shift (ncs) value. This step is repeated for at least one other DMRS in the subframe to determine one or more potential PSCCHs for the at least one other DMRS. Then, a subset L of PSCCHs is selected from the potential PSCCHs. The selected subset L of PSCCHs together with their corresponding DMRS cyclic shift (ncs) values are made available for use in a decoding process for the received channel signal.
    Type: Grant
    Filed: March 11, 2020
    Date of Patent: May 3, 2022
    Assignee: Hong Kong Applied Science and Technology Research Institue Company Limited
    Inventors: Eddy Chiu, Yun Hou, Yuyi Mao, Xiangyu Liu, Ching Hong Chris Leung, Man Wai Victor Kwan, Kong Chau Eric Tsang
  • Publication number: 20210289486
    Abstract: Described is a method of decoding a physical sidelink control channel (PSCCH). The method comprises: for a PSCCH candidate in a resource grid, processing a received demodulation reference signal (DMRS) in a subframe of said resource grid associated with said PSCCH candidate to determine one or more potential PSCCHs for decoding, each of said one or more potential PSCCHs being identified by resource block (RB) position in the resource grid and a corresponding DMRS cyclic shift (ncs) value. The foregoing step is repeated for at least one other DMRS in said subframe to determine one or more potential PSCCHs for said at least one other DMRS. Then, a subset L of PSCCHs is selected from said potential PSCCHs whereby said selected subset L of PSCCHs together with their corresponding DMRS cyclic shift (ncs) values are made available for use in a decoding process for the received channel signal.
    Type: Application
    Filed: March 11, 2020
    Publication date: September 16, 2021
    Inventors: Eddy Chiu, Yun Hou, Yuyi Mao, Xiangyu Liu, Ching Hong Chris Leung, Man Wai Victor Kwan, Kong Chau Eric Tsang
  • Patent number: 11026278
    Abstract: Described is a method of decoding a physical sidelink shared channel (PSSCH) involving physical sidelink control channel (PSCCH) resource grid search space reduction, timing offset (TO) estimation, and reference symbol identification. Resource grid search space reduction may include identifying resource blocks (RBs) having a signal power below a first threshold such that said RBs can be excluded from further processing. Search space reduction may additionally or alternatively include identifying RB pairs where a difference in signal power between the RBs comprising each pair of RBs is above a second threshold and excluding any such said RB pairs from further processing. TO compensation may include circularly correlating TO-compensated received DMRSs and their corresponding local DMRSs to obtain energy or power profiles.
    Type: Grant
    Filed: September 5, 2019
    Date of Patent: June 1, 2021
    Assignee: HongKong Applied Science and Technology Research Institute Company Limited
    Inventors: Yun Hou, Yuyi Mao, Eddy Chiu, Xiangyu Liu, Yaming Luo, Man Wai Kwan, Kong Chau Eric Tsang
  • Publication number: 20210076433
    Abstract: Described is a method of decoding a physical sidelink shared channel (PSSCH) involving physical sidelink control channel (PSCCH) resource grid search space reduction, timing offset (TO) estimation, and reference symbol identification. Resource grid search space reduction may include identifying resource blocks (RBs) having a signal power below a first threshold such that said RBs can be excluded from further processing. Search space reduction may additionally or alternatively include identifying RB pairs where a difference in signal power between the RBs comprising each pair of RBs is above a second threshold and excluding any such said RB pairs from further processing. TO compensation may include circularly correlating TO-compensated received DMRSs and their corresponding local DMRSs to obtain energy or power profiles.
    Type: Application
    Filed: September 5, 2019
    Publication date: March 11, 2021
    Inventors: Yun Hou, Yuyi Mao, Eddy Chiu, Xiangyu Liu, Yaming Luo, Man Wai Kwan, Kong Chau Eric Tsang