Patents by Inventor Chao-Cheng Tu

Chao-Cheng Tu 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: 20220217730
    Abstract: Systems, methods, and instrumentalities are provided to implement scheduling for device-to-device (D2D). A WTRU (e.g., a D2D WTRU) may determine whether the WTRU has D2D data to transmit. The WTRU may determine a set of allowed SA resources and/or allowed D2D data resources for transmission of the SA. The WTRU may select an SA resource and/or D2D data resources (e.g., from the set of allowed SA resources and/or D2D data resources) for transmission. The WTRU may select one or more transmission parameters. The WTRU may select one or more transmission patterns. The WTRU may transmit D2D data over the set of allowed D2D resources using the selected transmission patterns and according to the selected transmission parameters.
    Type: Application
    Filed: March 14, 2022
    Publication date: July 7, 2022
    Inventors: Paul Marinier, Benoit Pelletier, Marian Rudolf, Diana Pani, Gwenael Poitau, Ghyslain Pelletier, Chao-Cheng Tu
  • Patent number: 11277849
    Abstract: Systems, methods, and instrumentalities are provided to implement scheduling for device-to-device (D2D). A WTRU (e.g., a D2D WTRU) may determine whether the WTRU has D2D data to transmit. The WTRU may determine a set of allowed SA resources and/or allowed D2D data resources for transmission of the SA. The WTRU may select an SA resource and/or D2D data resources (e.g., from the set of allowed SA resources and/or D2D data resources) for transmission. The WTRU may select one or more transmission parameters. The WTRU may select one or more transmission patterns. The WTRU may transmit D2D data over the set of allowed D2D resources using the selected transmission patterns and according to the selected transmission parameters.
    Type: Grant
    Filed: September 18, 2019
    Date of Patent: March 15, 2022
    Assignee: InterDigital Patent Holdings, Inc.
    Inventors: Paul Marinier, Benoit Pelletier, Marian Rudolf, Diana Pani, Gwenael Poitau, Ghyslain Pelletier, Chao-Cheng Tu
  • Publication number: 20200015241
    Abstract: Systems, methods, and instrumentalities are provided to implement scheduling for device-to-device (D2D). A WTRU (e.g., a D2D WTRU) may determine whether the WTRU has D2D data to transmit. The WTRU may determine a set of allowed SA resources and/or allowed D2D data resources for transmission of the SA. The WTRU may select an SA resource and/or D2D data resources (e.g., from the set of allowed SA resources and/or D2D data resources) for transmission. The WTRU may select one or more transmission parameters. The WTRU may select one or more transmission patterns. The WTRU may transmit D2D data over the set of allowed D2D resources using the selected transmission patterns and according to the selected transmission parameters.
    Type: Application
    Filed: September 18, 2019
    Publication date: January 9, 2020
    Inventors: PAUL MARINIER, Benoit Pelletier, Marian Rudolf, Diana Pani, Gwenael Poitau, Ghyslain Pelletier, Chao-Cheng Tu
  • Patent number: 10462802
    Abstract: Systems, methods, and instrumentalities are provided to implement scheduling for device-to-device (D2D). A WTRU (e.g., a D2D WTRU) may determine whether the WTRU has D2D data to transmit. The WTRU may determine a set of allowed SA resources and/or allowed D2D data resources for transmission of the SA. The WTRU may select an SA resource and/or D2D data resources (e.g., from the set of allowed SA resources and/or D2D data resources) for transmission. The WTRU may select one or more transmission parameters. The WTRU may select one or more transmission patterns. The WTRU may transmit D2D data over the set of allowed D2D resources using the selected transmission patterns and according to the selected transmission parameters.
    Type: Grant
    Filed: August 6, 2014
    Date of Patent: October 29, 2019
    Assignee: InterDigital Patent Holdings, Inc.
    Inventors: Paul Marinier, Benoit Pelletier, Marian Rudolf, Diana Pani, Gwenael Poitau, Ghyslain Pelletier, Chao-Cheng Tu
  • Publication number: 20190297658
    Abstract: A wireless transmit/receive unit (WTRU) comprises a receiver, a transmitter and a processor. The receiver and the processor are configured to receive a set of time patterns. Each time pattern indicates transmission times for the WTRU. The receiver and the processor are configured to receive an indication in a scheduling assignment. The indication in the scheduling assignment indicates at least one of the set of time patterns to use. The processor and the transmitter are configured to transmit based on the received indication.
    Type: Application
    Filed: June 10, 2019
    Publication date: September 26, 2019
    Applicant: INTERDIGITAL PATENT HOLDINGS, INC.
    Inventors: Chao-Cheng Tu, Benoit Pelletier, Paul Marinier, Marian Rudolf
  • Patent number: 10368379
    Abstract: Embodiments include methods, systems, and apparatuses for a first wireless transmit/receive unit (WTRU) to perform device-to-device (D2D) communication directly with a second WTRU is disclosed. The embodiments may include determining a base pattern length to use for the D2D communication based on at least a transmission configuration. A base pattern may be selected from one or more base patterns having the determined base pattern length based on an indication from a network. The selected base pattern may have one or more transmission opportunities. One or more data packets may be transmitted to the second WTRU in at least one of the one or more transmission opportunities of the selected base pattern.
    Type: Grant
    Filed: March 9, 2018
    Date of Patent: July 30, 2019
    Assignee: INTERDIGITAL PATENT HOLDINGS, INC.
    Inventors: Chao-Cheng Tu, Benoit Pelletier, Paul Marinier, Marian Rudolf
  • Publication number: 20180199389
    Abstract: Embodiments include methods, systems, and apparatuses for a first wireless transmit/receive unit (WTRU) to perform device-to-device (D2D) communication directly with a second WTRU is disclosed. The embodiments may include determining a base pattern length to use for the D2D communication based on at least a transmission configuration. A base pattern may be selected from one or more base patterns having the determined base pattern length based on an indication from a network. The selected base pattern may have one or more transmission opportunities. One or more data packets may be transmitted to the second WTRU in at least one of the one or more transmission opportunities of the selected base pattern.
    Type: Application
    Filed: March 9, 2018
    Publication date: July 12, 2018
    Applicant: INTERDIGITAL PATENT HOLDINGS, INC.
    Inventors: Chao-Cheng TU, Benoit PELLETIER, Paul MARINIER, Marian RUDOLF
  • Patent number: 9930709
    Abstract: Embodiments include methods and apparatuses for the design, construction and selection of base patterns and associated control signaling for direct device-to-device (D2D) communication, independent of a network. An embodiment includes the selection and transmission, by a wireless transmit and receive unit (WTRU), of base patterns in a scheduling period when the number of medium access control (MAC) protocol data units (PDUs) is larger than the number of MAC PDUs that a family of pre-determined base patterns can support. An embodiment may include the selection and transmission, by a WTRU, of base patterns in a scheduling period when the number of MAC PDUs is smaller than the number of MAC PDUs that a family of pre-determined base patterns can support. In addition, embodiments may include the selection, by a WTRU, of a base pattern or base patterns to minimize interference with other communications and to use resources efficiently.
    Type: Grant
    Filed: August 5, 2015
    Date of Patent: March 27, 2018
    Assignee: InterDigital Patent Holdings, Inc.
    Inventors: Chao-Cheng Tu, Benoit Pelletier, Paul Marinier, Marian Rudolf
  • Patent number: 9736816
    Abstract: Systems, methods, and instrumentalities are disclosed for a wireless transmit/receive unit (WTRU) to determine rank, offset, or inter-stream interference control information, for example, which may be associated with uplink MIMO operations. A method to control a WTRU may include receiving a special E-RNTI that is associated with a channel. The channel may be associated with a rank indication. The channel may be an E-AGCH-like channel. The channel may have a similar encoding structure as an E-AGCH. The channel may be an E-ROCH. The channel may be received, and it may be determined that the channel is associated with the special E-RNTI. At least one of a rank or an offset may be determined, and the WTRU may be configured with the determined rank or offset. An inter-stream interference (ISI) offset may be received, for example, via RRC signaling, and may be applied to an uplink transmission of a primary stream.
    Type: Grant
    Filed: January 28, 2013
    Date of Patent: August 15, 2017
    Assignee: InterDigital Patent Holdings, Inc.
    Inventors: Benoit Pelletier, Diana Pani, Lujing Cai, Damian C. Hamme, Joseph S. Levy, Chao-Cheng Tu
  • Publication number: 20160183276
    Abstract: Systems, methods, and instrumentalities are provided to implement scheduling for device-to-device (D2D). A WTRU (e.g., a D2D WTRU) may determine whether the WTRU has D2D data to transmit. The WTRU may determine a set of allowed SA resources and/or allowed D2D data resources for transmission of the SA. The WTRU may select an SA resource and/or D2D data resources (e.g., from the set of allowed SA resources and/or D2D data resources) for transmission. The WTRU may select one or more transmission parameters. The WTRU may select one or more transmission patterns. The WTRU may transmit D2D data over the set of allowed D2D resources using the selected transmission patterns and according to the selected transmission parameters.
    Type: Application
    Filed: August 6, 2014
    Publication date: June 23, 2016
    Applicant: INTERDIGITAL PATENT HOLDINGS, INC.
    Inventors: Paul Marinier, Benoit Pelletier, Marian Rudolf, Diana Pani, Gwenael Poitau, Ghyslain Pelletier, Chao-Cheng Tu
  • Publication number: 20160044729
    Abstract: Embodiments include methods and apparatuses for the design, construction and selection of base patterns and associated control signaling for direct device-to-device (D2D) communication, independent of a network. An embodiment includes the selection and transmission, by a wireless transmit and receive unit (WTRU), of base patterns in a scheduling period when the number of medium access control (MAC) protocol data units (PDUs) is larger than the number of MAC PDUs that a family of pre-determined base patterns can support. An embodiment may include the selection and transmission, by a WTRU, of base patterns in a scheduling period when the number of MAC PDUs is smaller than the number of MAC PDUs that a family of pre-determined base patterns can support. In addition, embodiments may include the selection, by a WTRU, of a base pattern or base patterns to minimize interference with other communications and to use resources efficiently.
    Type: Application
    Filed: August 5, 2015
    Publication date: February 11, 2016
    Applicant: INTERDIGITAL PATENT HOLDINGS, INC.
    Inventors: Chao-Cheng Tu, Benoit Pelletier, Paul Marinier, Marian Rudolf
  • Publication number: 20120275403
    Abstract: Systems, methods, and instrumentalities are disclosed herein to determine a gain factor. A user equipment (UE) may determine that an S-E-DPCCH and an E-DPCCH are to be transmitted on a primary stream. The UE may calculate an E-DPCCH gain factor using a gain factor calculation and apply the -DPCCH gain factor. The UE may calculate an E-DPCCH gain factor reduction. For example, the E-DPCCH gain factor reduction may compensate for changes from single stream transmission to multiple stream transmission. The UE may apply the E-DPCCH gain factor reduction to the E-DPCCH gain factor. The UE may apply the E-DPCCH gain factor reduction to an S-E-DPCCH gain factor.
    Type: Application
    Filed: April 28, 2012
    Publication date: November 1, 2012
    Applicant: INTERDIGITAL PATENT HOLDINGS, INC.
    Inventors: Hong O. Zhang, Benoit Pelletier, Yan Li, Joseph S. Levy, Chao-Cheng Tu, Lujing Cai, Damian C. Hamme