Patents by Inventor Hsin-Hsi Tsai

Hsin-Hsi Tsai 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: 20210051698
    Abstract: A method includes receiving, through RRC signaling from a base station, indicating a dormancy cell group having at least a first serving cell and a second serving cell, receiving a first indicator indicating a dormant behavior to the first serving cell is to be activated when the first serving cell is activated, receiving a second indicator indicating a dormant behavior to the second serving cell is to be deactivated when the second serving cell is activated. The method also includes receiving a cell activation indication to activate the first serving cell and the second serving cell, activating the first serving cell and the second serving cell, applying the dormant behavior to the first serving cell based on the first indicator when the first serving cell is activated, and not applying the dormant behavior to the second serving cell based on the second indicator when the second serving cell is activated.
    Type: Application
    Filed: August 5, 2020
    Publication date: February 18, 2021
    Inventors: HSIN-HSI TSAI, CHIA-HUNG WEI, CHIE-MING CHOU
  • Publication number: 20210050901
    Abstract: A method performed by a User Equipment (UE) for Uplink (UL) transmission prioritization includes the UE detecting a beam failure event on a Special Cell (SpCell) and performing operations in response to detecting the beam failure event. The operations include the UE transmitting a preamble to the SpCell, receiving a Random Access Response (RAR) message from the SpCell, determining whether a first UL resource is suitable for a transmission of a Beam Failure Recovery (BFR) report according to whether the first UL resource is indicated by the RAR message, and transmitting the BFR report on the first UL resource after determining that the first UL resource is suitable for the transmission of the BFR report.
    Type: Application
    Filed: August 13, 2020
    Publication date: February 18, 2021
    Inventors: HENG-LI CHIN, HSIN-HSI TSAI, CHIA-HUNG WEI
  • Publication number: 20210028848
    Abstract: A method for Beam Failure Recovery (BFR) performed by a User Equipment (UE) includes the UE receiving, from a Base Station (BS), a first configuration indicating a first Reference Signal (RS) associated with a first cell of the BS, determining whether a first beam failure event is detected on the first cell by assessing a first radio link quality based on the first RS, triggering a first BFR procedure for the first cell when the first beam failure event is detected on the first cell, and when the first BFR procedure is triggered and not cancelled, performing operations including: determining whether the UE is allocated with an Uplink (UL) resource that is available for transmitting a BFR report, where the UL resource is a Physical Uplink Shared Channel (PUSCH) resource, when the UE is allocated with the UL resource, generating, in response to the first BFR procedure, the BFR report, and transmitting, on the UL resource, the BFR report to the BS, and when the UE is not allocated with the UL resource, triggerin
    Type: Application
    Filed: July 21, 2020
    Publication date: January 28, 2021
    Inventors: HSIN-HSI TSAI, HENG-LI CHIN, HUNG-CHEN CHEN, CHIA-HAO YU, CHIA-HUNG WEI
  • Publication number: 20210029724
    Abstract: A method for Scheduling Request (SR) resource prioritization for Beam Failure Recovery (BFR) includes a User Equipment (UE) receiving a first SR configuration from a Base Station (BS), receiving a second SR configuration from the BS, triggering a first SR procedure for a BFR procedure based on the first SR configuration, triggering a second SR procedure for a Buffer Status Report (BSR) procedure based on the second SR configuration, in a case that the first SR procedure and the second SR procedure are triggered and not cancelled and the first SR resource overlaps the second SR resource in the time domain, prioritizing the first SR resource over the second SR resource, and transmitting an SR on the first SR resource after prioritizing the first SR resource over the second SR resource.
    Type: Application
    Filed: July 23, 2020
    Publication date: January 28, 2021
    Inventors: HSIN-HSI TSAI, HENG-LI CHIN, CHIE-MING CHOU
  • Publication number: 20210028849
    Abstract: A method for a user equipment (UE) performing a beam failure recovery (BFR) procedure is disclosed. The method comprises performing a first beam failure detection (BFD) procedure on a first cell, performing a second BFD procedure on a second cell, triggering a first BFR procedure for a first cell in response to a beam failure being detected on the first cell by the first BFD procedure, triggering a second BFR procedure for a second cell in response to a beam failure being detected on the second cell by the second BFD procedure, and canceling the triggered first BFR procedure for the first cell in response to a BFR report corresponding to at least one of the first and second BFR procedures being successfully transmitted to a base station (BS), wherein the BFR report includes BFR information of the first cell.
    Type: Application
    Filed: July 22, 2020
    Publication date: January 28, 2021
    Inventors: HENG-LI CHIN, HSIN-HSI TSAI, HUNG-CHEN CHEN, CHIA-HUNG WEI
  • Publication number: 20210007087
    Abstract: A method performed by a User Equipment (UE) is provided. The method includes the UE receiving a Radio Resource Control (RRC) configuration including a plurality of repetition lists that are associated with a plurality of Downlink Control Information (DCI) formats. Each of the plurality of repetition lists includes a plurality of values, and each of the plurality of values indicates the number of repetitions for a Physical Uplink Shared Channel (PUSCH) transmission. The method further includes the UE receiving DCI having a particular DCI format for scheduling the PUSCH transmission. The DCI includes an indicator indicating one of the plurality of values included in one of the plurality of repetition lists. The one of the plurality of repetition lists is associated with the particular DCI format. The method further includes the UE performing the PUSCH transmission for a number of times, where the number of times is determined by the one of the plurality of values.
    Type: Application
    Filed: June 10, 2020
    Publication date: January 7, 2021
    Inventors: CHIA-HUNG WEI, HENG-LI CHIN, HSIN-HSI TSAI, CHIE-MING CHOU
  • Publication number: 20200413435
    Abstract: A method of reporting a configured grant (CG) confirmation for a user equipment (UE) of a wireless communication system is disclosed. The method comprises receiving a radio resource control (RRC) message for configuring the UE with at least one CG configuration in a bandwidth part (BWP) of a cell, from a network of the wireless communication system, receiving a (de)activation command for activating or deactivating the at least one configured CG configuration, from the network, generating a medium access control (MAC) control element (CE) for reporting the CG confirmation indicating whether the at least one configured CG configuration is activated or deactivated by the (de)activation command, according to a first indication of the RRC message, wherein the first indication is associated with the configured at least one CG configuration, and transmitting the MAC CE, to the network.
    Type: Application
    Filed: June 26, 2020
    Publication date: December 31, 2020
    Inventors: HENG-LI CHIN, CHIA-HUNG WEI, WAN-CHEN LIN, HSIN-HSI TSAI, CHIE-MING CHOU
  • Patent number: 10849187
    Abstract: A method and apparatus are disclosed from the perspective of a UE (User Equipment). In one embodiment, the method includes the UE receiving a first MAC-CE (Medium Access Control-Control Element) including or indicating a plurality of TCI (Transmission Configuration Indication) state IDs (Identities) to be activated for receiving PDSCH (Physical Downlink Shared Channel), wherein format of the first MAC-CE depends on amount of the plurality of TCI state IDs. The method further includes the UE activating a plurality of TCI states associated with the plurality of TCI state IDs included or indicated in the first MAC-CE for receiving the PDSCH in response to reception of the first MAC-CE.
    Type: Grant
    Filed: December 11, 2019
    Date of Patent: November 24, 2020
    Assignee: Asustek Computer Inc.
    Inventors: Hsin-Hsi Tsai, Yu-Hsuan Guo, Jia-Hong Liou
  • Publication number: 20200351784
    Abstract: A method for a UE to monitor a PDCCH comprises receiving a first configuration from a base station to configure the UE with a first search space of the PDCCH, where the first search space is used for monitoring a scheduling signal used for indicating scheduling information, receiving a second configuration from the base station to configure the UE with a second search space of the PDCCH, wherein the second search space is used for monitoring a power saving signal used for indicating wake-up information associated with a DRX functionality, monitoring the first search space in response to the UE being in a DRX active time of the DRX functionality, wherein the DRX active time is a time during which the UE monitors the PDCCH, and not monitoring the second search space in response to the UE being in the DRX active time of the DRX functionality.
    Type: Application
    Filed: April 27, 2020
    Publication date: November 5, 2020
    Inventors: HSIN-HSI TSAI, CHIA-HUNG WEI, CHIE-MING CHOU
  • Publication number: 20200196383
    Abstract: A method and apparatus are disclosed from the perspective of a UE (User Equipment). In one embodiment, the method includes the UE receiving a first MAC-CE (Medium Access Control-Control Element) including or indicating a plurality of TCI (Transmission Configuration Indication) state IDs (Identities) to be activated for receiving PDSCH (Physical Downlink Shared Channel), wherein format of the first MAC-CE depends on amount of the plurality of TCI state IDs. The method further includes the UE activating a plurality of TCI states associated with the plurality of TCI state IDs included or indicated in the first MAC-CE for receiving the PDSCH in response to reception of the first MAC-CE.
    Type: Application
    Filed: December 11, 2019
    Publication date: June 18, 2020
    Inventors: Hsin-Hsi Tsai, Yu-Hsuan Guo, Jia-Hong Liou
  • Patent number: 10681742
    Abstract: Methods and apparatuses for random access in a wireless communication system are disclosed herein. In one method, a user equipment (UE) performs a first attempt of a random access procedure to communicate with a cell via at least a first UE beam. The UE performs a second attempt of the random access procedure to communicate with the cell via at least a second UE beam when the first attempt fails, in which the direction of the first UE beam and the direction of the second UE beam are different.
    Type: Grant
    Filed: July 14, 2017
    Date of Patent: June 9, 2020
    Assignee: ASUSTek Computer Inc.
    Inventors: Hsin-Hsi Tsai, Yu-Hsuan Guo
  • Patent number: 10602549
    Abstract: A method and apparatus are disclosed from the perspective of a User Equipment (UE). In one embodiment, the method includes receiving a Random Access Channel (RACH) configuration from a network node, wherein the RACH configuration indicates at least one Physical Random Access Channel (PRACH) resource for beam failure recovery. The method further includes receiving a timing advance command from the network node, and starting or restarting a time alignment timer when receiving the timing advance command. The method also includes releasing the at least one PRACH resource for the beam failure recovery indicated by the RACH configuration when the timing alignment timer expires.
    Type: Grant
    Filed: February 20, 2019
    Date of Patent: March 24, 2020
    Assignee: ASUSTek Computer Inc.
    Inventors: Hsin-Hsi Tsai, Yu-Hsuan Guo, Yi-Hsuan Kung, Jia-Hong Liou
  • Patent number: 10582418
    Abstract: Methods and apparatuses for transmitting data duplication in a wireless communication system are disclosed herein. In one method for a user equipment (UE) configured with data duplication. The UE duplicates a data unit into a first data unit and a second data unit. The UE constructs a second Radio Link Control (RLC) Packet Data Unit (PDU) used for transmitting the second data unit. The second data unit is a second RLC Service Data Unit (SDU). The UE receives a control command from a network node. The control command is used to deactivate the data duplication. The UE discards the second RLC PDU if the second RLC PDU includes the second RLC SDU.
    Type: Grant
    Filed: May 2, 2018
    Date of Patent: March 3, 2020
    Assignee: ASUSTek Computer Inc.
    Inventors: Hsin-Hsi Tsai, Li-Te Pan, Li-Chih Tseng
  • Publication number: 20190349866
    Abstract: A method and apparatus are disclosed from the perspective of an User Equipment (UE). In one embodiment, the method includes the UE deriving a first pathloss value from a first pathloss reference of a serving cell, wherein the first pathloss value is used for deriving a power headroom value included in a first power headroom report. The method also includes the UE deriving a second pathloss value from a second pathloss reference of the serving cell after deriving the first pathloss value, wherein the second pathloss reference is used for power control for a first Physical Uplink Shared Channel (PUSCH) transmission on the serving cell. The method further includes the UE deriving the pathloss change based on the first pathloss value and the second pathloss value. In addition, the method includes the UE determining whether a second power headroom report is triggered based on whether the pathloss change is more than a threshold.
    Type: Application
    Filed: April 26, 2019
    Publication date: November 14, 2019
    Inventors: Ko-Chiang Lin, Yu-Hsuan Guo, Ming-Che Li, Hsin-Hsi Tsai
  • Patent number: 10455531
    Abstract: A method and apparatus are disclosed from the perspective of a UE. In one embodiment, the method includes maintaining a first timing advance for a cell, wherein the first timing advance is associated with a first identifier. The method further includes performing a random access procedure in the cell. The method also includes receiving an initial value of a second timing advance for the cell via a random access response of the random access procedure. In addition, the method includes receiving a second identifier to associate with the second timing advance. Furthermore, the method includes maintaining the first timing advance and the second timing advance for the cell.
    Type: Grant
    Filed: October 30, 2017
    Date of Patent: October 22, 2019
    Assignee: ASUSTek Computer Inc.
    Inventors: Hsin-Hsi Tsai, Yu-Hsuan Guo, Richard Lee-Chee Kuo
  • Patent number: 10433301
    Abstract: A method and apparatus are disclosed, from the perspective of the UE (User Equipment). In one embodiment, the method includes maintaining a first timing advance value for uplink transmissions. In addition, the method includes receiving a signaling, via a downlink control channel, to schedule a first uplink transmission in a cell, wherein the signaling includes a first information to assist the UE to determine a specific timing advance value for the first uplink transmission, and the first information indicates an index value used to control an amount of timing adjustment to be applied. The method also includes performing the first uplink transmission in the cell at transmission timing determined at least based on the specific timing advance value.
    Type: Grant
    Filed: September 1, 2017
    Date of Patent: October 1, 2019
    Assignee: ASUSTek Computer Inc.
    Inventors: Yu-Hsuan Guo, Hsin-Hsi Tsai, Meng-Hui Ou
  • Publication number: 20190297547
    Abstract: A method and apparatus are disclosed. In an example from the perspective of a User Equipment (UE), a signal to configure the UE to perform a Random Access Channel-less (RACH-less) handover to a second cell may be received in a first cell, wherein the signal comprises a candidate list of beams for Physical Downlink Control Channel (PDCCH) monitoring in the second cell and/or the signal is indicative of a first beam of the candidate list of beams (to be used by the UE for PDCCH monitoring). A PDCCH in the second cell on the first beam may be monitored before receiving a Medium Access Control (MAC) Control Element (CE) assigning a second beam for PDCCH monitoring in the second cell.
    Type: Application
    Filed: March 13, 2019
    Publication date: September 26, 2019
    Inventors: Hsin-Hsi Tsai, Yu-Hsuan Guo
  • Publication number: 20190297537
    Abstract: A method and apparatus are disclosed. In an example from the perspective of a User Equipment (UE), a signal to configure the UE to perform a Random Access Channel-less (RACH-less) handover to a second cell may be received in a first cell. The signal may comprise an uplink (UL) grant to be used in the second cell. The UL grant may be associated with a downlink (DL) signal. Whether to use the UL grant in the second cell may be determined based upon whether the DL signal is qualified.
    Type: Application
    Filed: March 21, 2019
    Publication date: September 26, 2019
    Inventors: Hsin-Hsi TSAI, Yu-Hsuan GUO
  • Publication number: 20190274169
    Abstract: A method and apparatus are disclosed from the perspective of a User Equipment (UE). In one embodiment, the method includes receiving a Random Access Channel (RACH) configuration from a network node, wherein the RACH configuration indicates at least one Physical Random Access Channel (PRACH) resource for beam failure recovery. The method further includes receiving a timing advance command from the network node, and starting or restarting a time alignment timer when receiving the timing advance command. The method also includes releasing the at least one PRACH resource for the beam failure recovery indicated by the RACH configuration when the timing alignment timer expires.
    Type: Application
    Filed: February 20, 2019
    Publication date: September 5, 2019
    Inventors: Hsin-Hsi Tsai, Yu-Hsuan Guo, Yi-Hsuan Kung, Jia-Hong Liou
  • Publication number: 20190268794
    Abstract: Methods and apparatuses for triggering a beam state information report by a user equipment in a wireless communication system are disclosed herein. In one method, a user equipment measures multiple beam reference signals of non-serving beams from a cell and derives multiple values from measurements. The UE derives a first value, wherein the first value is a highest value, a lowest value, or an average value of the multiple values. The UE triggers to report a measurement result for a beam reference signal if at least one condition is satisfied, wherein the condition is based on comparing the first value to a threshold.
    Type: Application
    Filed: May 8, 2019
    Publication date: August 29, 2019
    Inventors: Hsin-Hsi Tsai, Meng-Hui Ou, Richard Lee-Chee Kuo