Patents by Inventor Li-Chih Tseng

Li-Chih Tseng 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: 20210274546
    Abstract: A method and apparatus are disclosed. In an example from the perspective of a first device, the first device performs sidelink communication with one or more destinations. The first device receives and/or selects a sidelink grant associated with a sidelink transmission. Responsive to the sidelink grant, the first device selects a first destination of the one or more destinations based upon a report signaling. The first device performs the sidelink transmission associated with the sidelink grant to the first destination.
    Type: Application
    Filed: May 5, 2021
    Publication date: September 2, 2021
    Inventors: Yi-Hsuan Kung, Chun-Wei Huang, Li-Chih Tseng
  • Publication number: 20210267002
    Abstract: A method and device are disclosed from the perspective of a first device handling radio link failure. In one method, the method includes the first device performing or establishing sidelink unicast communication with a second device. The method also includes the first device performing or establishing sidelink unicast communication with a third device. The method also includes the first device detecting a radio link failure associated with the second device. The method further includes the first device performing a Sidelink MAC reset associated with the second device in response to the radio link failure, and not performing a Sidelink MAC reset associated with the third device.
    Type: Application
    Filed: May 6, 2021
    Publication date: August 26, 2021
    Inventors: Yi-Hsuan Kung, Li-Chih Tseng, Chun-Wei Huang, Ming-Che Li, Li-Te Pan
  • Publication number: 20210227602
    Abstract: A method and apparatus are disclosed from the perspective of a first device to perform sidelink communication. In one embodiment, the method includes the first device performing sidelink resource selection or reselection procedure for a sidelink transmission to a second device, wherein the sidelink resource selection or reselection procedure is performed to select at least one sidelink resource from candidate sidelink resources within a time duration of selection window. The method further includes the first device selecting a first sidelink resource based on sidelink active time or wake-up time of the second device, wherein the first sidelink resource is within the time duration of selection window. The method also includes the first device performing the sidelink transmission on the first sidelink resource to the second device.
    Type: Application
    Filed: January 15, 2021
    Publication date: July 22, 2021
    Inventors: Ming-Che Li, Li-Chih Tseng, Yi-Hsuan Kung, Chun-Wei Huang, Li-Te Pan
  • Publication number: 20210227620
    Abstract: A method and device are disclosed from the perspective of a second User Equipment (UE) to configure Sidelink (SL) Discontinuous Reception (DRX). In one embodiment, the method includes the second UE initiating or initializing a sidelink service with a first UE. The method also includes the second UE determining a SL DRX configuration based on association between sidelink service and SL DRX configuration, wherein the SL DRX configuration is associated with the sidelink service. The method further includes the second UE monitoring sidelink control channel based on the SL DRX configuration.
    Type: Application
    Filed: January 19, 2021
    Publication date: July 22, 2021
    Inventors: Li-Te Pan, Li-Chih Tseng, Ming-Che Li
  • Publication number: 20210227621
    Abstract: A method and device are disclosed from the perspective of a first User Equipment (UE) to support Sidelink (SL) Discontinuous Reception (DRX). In one embodiment, the method includes the first UE establishing a unicast link with a second UE. The method further includes the first UE receiving a SL DRX configuration associated with the second UE from the second UE. The method also includes the first UE transmitting the SL DRX configuration to a network node. In addition, the method includes the first UE receiving a sidelink grant from the network node, wherein the sidelink grant indicates sidelink resources. Furthermore, the method includes the first UE performing a sidelink transmission to the second UE based on the sidelink resources.
    Type: Application
    Filed: January 19, 2021
    Publication date: July 22, 2021
    Inventors: Li-Te Pan, Li-Chih Tseng, Ming-Che Li
  • Publication number: 20210226738
    Abstract: A method and apparatus are disclosed. In an example from the perspective of a User Equipment (UE), if sidelink packet duplication is configured or enabled for a Sidelink Radio Bearer (SLRB), a first Packet Data Convergence Protocol (PDCP) Protocol Data Unit (PDU), corresponding to a first PDCP Service Data Unit (SDU), and a duplicate of the first PDCP PDU, are transmitted. A first PDCP Sequence Number (SN) of the first PDCP PDU is set based upon one or more state variables used for sidelink transmission on the SLRB. If the sidelink packet duplication is de-configured or disabled for the SLRB, a second PDCP PDU, corresponding to a second PDCP SDU, is transmitted. Noduplicate of the second PDCP PDU is transmitted. A second PDCP SN of the second PDCP PDU is set based upon the one or more state variables used for sidelink transmission on the SLRB.
    Type: Application
    Filed: April 9, 2021
    Publication date: July 22, 2021
    Inventors: Li-Te PAN, Richard Lee-Chee KUO, Li-Chih Tseng
  • Publication number: 20210227622
    Abstract: A method and device are disclosed from the perspective of a first device. In one embodiment, the method includes the first device being configured with a Sidelink (SL) Discontinuous Reception (DRX) configuration. The method also includes the first device performing a sidelink communication with a second device. The method further includes the first device receiving a signaling, from the second device, indicating a new sidelink transmission. In addition, the method includes the first device determining whether to start or restart a timer in response to the signaling at least based on information indicated in the signaling, wherein the first device monitors sidelink control channel when the timer is running.
    Type: Application
    Filed: January 21, 2021
    Publication date: July 22, 2021
    Inventors: Yi-Hsuan Kung, Ming-Che Li, Li-Chih Tseng, Chun-Wei Huang
  • Publication number: 20210219324
    Abstract: A method and apparatus are disclosed for latency reduction of device-to-device message in a wireless communication system. In one embodiment, the method includes the UE receiving a grant on a first interface wherein the grant indicates resource for transmitting scheduling information and resources for data transmission on a second interface.
    Type: Application
    Filed: March 26, 2021
    Publication date: July 15, 2021
    Inventors: Ming-Che LI, Li-Chih TSENG
  • Publication number: 20210211238
    Abstract: A method and apparatus are disclosed from the perspective of a first device to determine sidelink feedback resource associated with sidelink communication. In one embodiment, the method includes the first device receiving an identifier from an upper layer of the first device. The method also includes the first device receiving a sidelink transmission from a second device. The method further includes the first device determining a sidelink feedback resource associated with the sidelink transmission at least based on the identifier and a source ID (Identity) associated with the sidelink transmission. In addition, the method includes the first device using the sidelink feedback resource to transmit a feedback in response to the sidelink transmission to the second device.
    Type: Application
    Filed: January 17, 2021
    Publication date: July 8, 2021
    Inventors: Yi-Hsuan Kung, Li-Chih Tseng, Li-Te Pan, Chun-Wei Huang, Ming-Che Li
  • Patent number: 11032864
    Abstract: A method and device are disclosed from the perspective of a first device handling radio link failure. In one method, the method includes the first device performing or establishing sidelink unicast communication with a second device. The method also includes the first device performing or establishing sidelink unicast communication with a third device. The method also includes the first device detecting a radio link failure associated with the second device. The method further includes the first device performing a Sidelink MAC reset associated with the second device in response to the radio link failure, and not performing a Sidelink MAC reset associated with the third device.
    Type: Grant
    Filed: August 5, 2020
    Date of Patent: June 8, 2021
    Assignee: ASUSTek Computer Inc.
    Inventors: Yi-Hsuan Kung, Li-Chih Tseng, Chun-Wei Huang, Ming-Che Li, Li-Te Pan
  • Patent number: 11032845
    Abstract: A method and apparatus are disclosed. In an example from the perspective of a first device, the first device performs sidelink communication with one or more destinations. The first device receives and/or selects a sidelink grant associated with a sidelink transmission. Responsive to the sidelink grant, the first device selects a first destination of the one or more destinations based upon a report signaling. The first device performs the sidelink transmission associated with the sidelink grant to the first destination.
    Type: Grant
    Filed: October 22, 2020
    Date of Patent: June 8, 2021
    Assignee: ASUSTek Computer Inc.
    Inventors: Yi-Hsuan Kung, Chun-Wei Huang, Li-Chih Tseng
  • Publication number: 20210168790
    Abstract: A method and apparatus are disclosed from the perspective of a first device. In one embodiment, the method includes the first device receiving a configuration, from a network node, of a first sidelink resource pool without any Physical Sidelink Feedback Channel (PSFCH) resource. The method further includes the first device receiving a first sidelink grant transmitted, configured, or scheduled by the network node, wherein the first sidelink grant schedules or indicates at least a first sidelink resource in the first sidelink resource pool. Furthermore, the method includes the first device expecting or considering that the first sidelink grant provides no Physical Uplink Control Channel (PUCCH) resource for reporting Sidelink (SL) Hybrid Automatic Repeat Request (HARD) feedback.
    Type: Application
    Filed: November 25, 2020
    Publication date: June 3, 2021
    Inventors: Ming-Che Li, Li-Chih Tseng, Chun-Wei Huang
  • Patent number: 11013008
    Abstract: A method and apparatus are disclosed from the perspective of a User Equipment (UE). In one embodiment, the method includes the UE performing a first device-to-device (D2D) transmission based on a periodic resource. The method further includes the UE performs a second D2D transmission based on the periodic resource in response to no data available for the second D2D transmission, wherein the second D2D transmission indicates release of the periodic resource. The method also includes the UE stops using the periodic resource to perform a third D2D transmission.
    Type: Grant
    Filed: June 27, 2019
    Date of Patent: May 18, 2021
    Assignee: ASUSTek Computer Inc.
    Inventors: Wei-Yu Chen, Li-Chih Tseng, Li-Te Pan, Ming-Che Li
  • Publication number: 20210144655
    Abstract: A method and apparatus are disclosed from the perspective of a device to perform sidelink transmission. The method includes the device being in RRC (Radio Resource Control)-connected mode in Uu link. The method also includes the device being configured to use at least DL (Downlink) pathloss for sidelink power control. The method further includes the device deriving a first DL pathloss value for determining an uplink transmit power of one specific kind of uplink transmission. In addition, the method includes the device determining or deriving a sidelink transmit power based on the first DL pathloss value. Furthermore, the method includes the device performing a sidelink transmission to other device(s) with the sidelink transmit power.
    Type: Application
    Filed: January 17, 2021
    Publication date: May 13, 2021
    Inventors: Ming-Che Li, Chun-Wei Huang, Li-Chih Tseng
  • Patent number: 11005604
    Abstract: A method and apparatus are disclosed. In an example from the perspective of a User Equipment (UE), if sidelink packet duplication is configured or enabled for a Sidelink Radio Bearer (SLRB), a first Packet Data Convergence Protocol (PDCP) Protocol Data Unit (PDU), corresponding to a first PDCP Service Data Unit (SDU), and a duplicate of the first PDCP PDU, are transmitted. A first PDCP Sequence Number (SN) of the first PDCP PDU is set based upon one or more state variables used for sidelink transmission on the SLRB. If the sidelink packet duplication is de-configured or disabled for the SLRB, a second PDCP PDU, corresponding to a second PDCP SDU, is transmitted. Noduplicate of the second PDCP PDU is transmitted. A second PDCP SN of the second PDCP PDU is set based upon the one or more state variables used for sidelink transmission on the SLRB.
    Type: Grant
    Filed: July 30, 2019
    Date of Patent: May 11, 2021
    Assignee: ASUSTek Computer Inc.
    Inventors: Li-Te Pan, Richard Lee-Chee Kuo, Li-Chih Tseng
  • Publication number: 20210136731
    Abstract: Methods and apparatuses for handling device-to-device feedback transmission in a wireless communication system are disclosed herein. In one method, a first device receives a configuration for operating in a network scheduling mode for acquiring sidelink resources. The first device receives a sidelink control information with a report request from a second device. The first device triggers or is triggered to transmit a report to the second device in response to the report request. If the first device has no available sidelink resource for transmitting the report, the first device triggers a scheduling request. The first device transmits a signaling of the scheduling request to the network. The first device receives a sidelink grant from the network. The first device utilizes sidelink resource(s) indicated by the sidelink grant to transmit the report to the second device.
    Type: Application
    Filed: October 21, 2020
    Publication date: May 6, 2021
    Inventors: Ming-Che Li, Chun-Wei Huang, Yi-Hsuan Kung, Li-Chih Tseng
  • Publication number: 20210136810
    Abstract: A method and apparatus are disclosed. In an example from the perspective of a first device, the first device performs sidelink communication with one or more destinations. The first device receives and/or selects a sidelink grant associated with a sidelink transmission. Responsive to the sidelink grant, the first device selects a first destination of the one or more destinations based upon a report signaling. The first device performs the sidelink transmission associated with the sidelink grant to the first destination.
    Type: Application
    Filed: October 22, 2020
    Publication date: May 6, 2021
    Inventors: Yi-Hsuan KUNG, Chun-Weu HUANG, Li-Chih TSENG
  • Publication number: 20210127385
    Abstract: A method and apparatus are disclosed. In an example, a first device receives first information and second information from a base station. The first device is configured with a configured grant for sidelink communication via the first information. The configured grant is indicative of first resources for sidelink communication. The second information is indicative of one or more timing offsets and an identity for second resources. The first device transmits sidelink data to a second device via a first resource of the first resources. The first device receives and/or detects a first signal, from the second device, indicative of a reception result associated with the sidelink data. The first device determines a second time and a frequency location based on the second information. The first device transmits a second signal to the base station via a second resource associated with the second time and the frequency location.
    Type: Application
    Filed: January 5, 2021
    Publication date: April 29, 2021
    Inventors: Yi-Hsuan Kung, Chun-Wei Huang, Li-Chih Tseng
  • Patent number: 10993251
    Abstract: A method and apparatus are disclosed for latency reduction of device-to-device message in a wireless communication system. In one embodiment, the method includes the UE receiving a grant on a first interface wherein the grant indicates resource for transmitting scheduling information and resources for data transmission on a second interface.
    Type: Grant
    Filed: February 3, 2017
    Date of Patent: April 27, 2021
    Assignee: ASUSTek Computer Inc.
    Inventors: Ming-Che Li, Li-Chih Tseng
  • Publication number: 20210075552
    Abstract: In an example, a second UE receives a first SCI and a second SCI from a first UE in a first slot. A groupcast sidelink transmission is scheduled by the first SCI and the second SCI. The second SCI indicates a location indication, associated with a location of the first UE, and a communication range. A PSFCH resource is determined based upon the first SCI. The second UE doesn't transmit a NACK indication on the PSFCH resource if location information of the second UE is available, the groupcast sidelink transmission isn't successfully decoded, and the second UE is outside the communication range. The second UE transmits the NACK indication on the PSFCH resource if the location information isn't available and the groupcast sidelink transmission isn't successfully decoded, or if the location information is available, the groupcast sidelink transmission isn't successfully decoded, and the second UE is within the communication range.
    Type: Application
    Filed: September 4, 2020
    Publication date: March 11, 2021
    Inventors: Chun-Wei Huang, Ming-Che LI, Li-Chih TSENG