Patents by Inventor TSANG-WEI YU

TSANG-WEI YU 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: 20230254940
    Abstract: A method of activating multiple secondary cells can include receiving on a primary cell (PCell) at a user equipment (UE) a first medium access (MAC) control element (CE) for activating a first secondary cell (SCell) and a second SCell for the UE in a wireless communication system. The first and second SCells can operate in a same band. No active serving cell operates on the same band for the UE. In response to that the first SCell is a known SCell, the second SCell is an unknown SCell, and both the first and second SCells operate in the same band that is a frequency range 2 (FR2) band, the first and second SCells can be activated in parallel without performing cell search and reference signal received power (RSRP) measurement and reporting over the first and second SCells.
    Type: Application
    Filed: April 6, 2023
    Publication date: August 10, 2023
    Applicant: MediaTek Singapore Pte. Ltd.
    Inventors: Zhixun TANG, Tsang-Wei YU, Hsuan-Li LIN
  • Patent number: 11653413
    Abstract: A method of activating multiple secondary cells can include receiving on a primary cell (PCell) at a user equipment (UE) a first medium access (MAC) control element (CE) for activating a first secondary cell (SCell) and a second SCell for the UE in a wireless communication system. The first and second SCells can operate in a same band. No active serving cell operates on the same band for the UE. In response to that the first SCell is a known SCell, the second SCell is an unknown SCell, and both the first and second SCells operate in the same band that is a frequency range 2 (FR2) band, the first and second SCells can be activated in parallel without performing cell search and reference signal received power (RSRP) measurement and reporting over the first and second SCells.
    Type: Grant
    Filed: February 10, 2021
    Date of Patent: May 16, 2023
    Assignee: MediaTek Singapore Pte. Ltd.
    Inventors: Zhixun Tang, Tsang-Wei Yu, Hsuan-Li Lin
  • Publication number: 20230124729
    Abstract: A method of determining the maximum timing change (MTC) based on subcarrier spacing (SCS) configuration for UE measurement and reporting of a neighbor cell in 5 GS is proposed. During measurement procedure, UE first checks whether a neighbor cell has been detectable at least for the time period Tidentity, and becomes undetectable for a period ?5 seconds, and then the cell becomes detectable again. UE then determines the MTC of the cell according to the SCS configuration of the cell. If the timing change of the cell is <MTC, UE reports the measurement report less than a first period (T1) after the measurement event is triggered. Otherwise, if the timing change of the cell is >MTC, UE reports the event triggered measurement reporting less than a second period (T2) after the measurement event is triggered.
    Type: Application
    Filed: September 25, 2022
    Publication date: April 20, 2023
    Inventors: Hsuan-Li Lin, Tsang-Wei Yu
  • Publication number: 20230096588
    Abstract: Apparatus and methods for unknown physical uplink control channel (PUCCH) secondary cell (SCell) activation are proposed. The network node may transmit a PUCCH SCell activation command for an unknown target PUCCH SCell to the UE. After receiving the PUCCH SCell activation command for the unknown target PUCCH SCell, the UE may transmit a layer 1 (L1) report or a layer 3 (L3) report for the unknown target PUCCH SCell to the network node before the unknown target PUCCH SCell is activated. The network node may obtain measurement information based on the L1 report or the L3 report before the unknown target PUCCH SCell is activated. Then, the network node may perform corresponding operations based on the L1 report or the L3 report before the unknown target PUCCH SCell is activated.
    Type: Application
    Filed: September 14, 2022
    Publication date: March 30, 2023
    Inventors: Chih-Kai Yang, Tsang-Wei Yu, Chi-Hsuan Hsieh, Din-Hwa Huang, Ming-Yuan Cheng
  • Patent number: 11611921
    Abstract: Aspects of the disclosure provide a method and an apparatus for performing a bandwidth part (BWP) switching process within different switching delays. For example, the apparatus can include receiving circuitry and processing circuitry. The receiving circuitry can receive from a BS a signaling indicating a change to a BWP configuration of the UE. The processing circuitry can perform a BWP configuration switching process based on the change to the BWP configuration to switch an active BWP configuration to a new BWP configuration, and monitor data transmission from the BS with the new BWP configuration either after a first predefined switching delay when the change to the BWP configuration includes at least one of a predefined set of BWP configuration parameters or after a second predefined switching delay when the change to the BWP configuration does not include any one of the predefined set of BWP configuration parameters.
    Type: Grant
    Filed: May 1, 2020
    Date of Patent: March 21, 2023
    Assignee: MEDIATEK INC.
    Inventors: Din-Hwa Huang, Tsang-Wei Yu, Wei-De Wu
  • Publication number: 20230007551
    Abstract: Apparatus and methods are provided for RRM measurement in the NR network. In one novel aspect, the RRM measurement is configured with one measurement gap for SS block and CSI-RS. In one embodiment, an extended MGL (eMGL) is configured such that the SS block and CSI-RS is measurement within one measurement gap. In another embodiment, the shorter MGL (sMGL) that is shorter than the standard MGL is configured. In another novel aspect, the CSI-RS is allocated adjacent to the SS blocks such that one measurement gap is configured for both the SS block and CSI-RS measurement. In another novel aspect, the CSI-RS measurement is conditionally configured. In yet another novel aspect, the UE decodes the time index of the SS block conditionally.
    Type: Application
    Filed: September 7, 2022
    Publication date: January 5, 2023
    Inventors: Din-Hwa Huang, Hsuan-Li Lin, Tsang-Wei Yu, Yih-Shen Chen, Chiao Yao Chuang
  • Patent number: 11533118
    Abstract: Various examples with respect to synchronization signal block (SSB) raster shift in mobile communications are described. A processor of a user equipment (UE) performs an initial cell search to identify a cell among one or more cells of a wireless communication system. The processor then camps on the identified cell. In performing the initial cell search, the processor scans through a plurality of SSB entries for frequency bands below 3 GHz with a SSB raster spacing and a SSB raster offset frequency that support sub-carrier spacing (SCS) spaced channel raster and 100 kHz channel raster for both 15 kHz SCS and 30 kHz SCS. A minimum channel bandwidth at 5 MHz or higher for 15 kHz SCS or at 10 MHz or higher for 30 kHz SCS is supported. The SSB raster spacing is a common multiple of 15 kHz and 100 kHz. The SSB raster offset frequency for 100 kHz channel raster is a multiple of 30 kHz plus/minus 10 kHz.
    Type: Grant
    Filed: November 12, 2020
    Date of Patent: December 20, 2022
    Inventors: Mingchun Chiang, Fucheng Wang, Tsang-Wei Yu, Jun Ma, Tao Chen, Wen Yang Chou
  • Patent number: 11515978
    Abstract: A method is provided for TCI switching related to CSI-RS measurement and reporting, spatial relation switch for SRS, PUSCH, and PUCCH. The PDSCH and PDCCH are received according to the QCLed aperiodic CSI-RS. When the AP CSI-RS is configured as the reference in the TCI of PDSCH, UE may apply the updated TCI for the PDSCH, after the corresponding aperiodic report has been received at the network. Spatial relation switch is based on the valid measurement report. The spatial relation switch delay of aperiodic SRS can be performed when UE has sent the corresponding measurement report to the network.
    Type: Grant
    Filed: November 6, 2020
    Date of Patent: November 29, 2022
    Assignee: MEDIATEK INC.
    Inventors: Hsuan-Li Lin, Zhixun Tang, Tsang-Wei Yu
  • Patent number: 11490283
    Abstract: A user equipment terminal (UE) in a wireless network calculates a measurement period for measuring the signal-to-interference-plus-noise ratio (SINR) for a serving cell within a frequency range. The calculation is based on a channel measurement resource (CMR) and an interference measurement resource (IMR). The calculation includes evaluation of a sharing factor P, which is a maximum of PCMR of the CMR and PIMR of the IMR. The PCMR and the PIMR are evaluated, at least in part, based on periodicity of the CMR and the IMR in relation to other periodic measurements performed by the UE. The UE performs a channel measurement and an interference measurement using the CMR and the IMR, respectively, over the measurement period. The UE calculates the SINR based on the channel measurement and the interference measurement; and transmits an SINR measurement report indicating the calculated SINR to a base station.
    Type: Grant
    Filed: March 29, 2021
    Date of Patent: November 1, 2022
    Assignee: MediaTek Inc.
    Inventors: Chih-Kai Yang, Hsuan-Li Lin, Tsang-Wei Yu
  • Patent number: 11470522
    Abstract: Apparatus and methods are provided for RRM measurement in the NR network. In one novel aspect, the RRM measurement is configured with one measurement gap for SS block and CSI-RS. In one embodiment, an extended MGL (eMGL) is configured such that the SS block and CSI-RS is measurement within one measurement gap. In another embodiment, the shorter MGL (sMGL) that is shorter than the standard MGL is configured. In another novel aspect, the CSI-RS is allocated adjacent to the SS blocks such that one measurement gap is configured for both the SS block and CSI-RS measurement. In another novel aspect, the CSI-RS measurement is conditionally configured. In yet another novel aspect, the UE decodes the time index of the SS block conditionally.
    Type: Grant
    Filed: June 15, 2018
    Date of Patent: October 11, 2022
    Assignee: MEDIATEK INC.
    Inventors: Din-Hwa Huang, Hsuan-Li Lin, Tsang-Wei Yu, Yih-Shen Chen, Chiao Yao Chuang
  • Publication number: 20220303991
    Abstract: A method, a computer-readable medium, and an apparatus are provided. The apparatus may be a UE. The UE receives, from a base station, one or more BWP configurations for configuring a plurality of BWPs at the UE. The respective one or more BWP parameters of a set of BWP parameters define each respective BWP of the plurality of BWPs. The UE sends a capability indication indicating that the UE is capable of resetting values of one or more parameters of the set of BWP parameters. The UE sends a subset indication indicating that the UE is capable of resetting values of one or more parameters of a subset of BWP parameters from the set of BWP parameters.
    Type: Application
    Filed: August 17, 2020
    Publication date: September 22, 2022
    Inventors: Wei-De WU, Pei-Kai LIAO, Din-Hwa HUANG, Tsang-Wei YU
  • Publication number: 20220248347
    Abstract: A UE performs a cell activation process in a wireless network. The UE calculates a first automatic gain control (AGC) setting based on downlink signals from a base station. The downlink signals include a coarse beam reference signal, a fine beam reference signal, and a conversion indication that indicates a power conversion between the coarse beam reference signal and the fine beam reference signal. The UE further calculates a second AGC setting based on the first AGC setting and the conversion indication. The UE performs a cell search using one of the first AGC setting and the second AGC setting, and performs fine time-frequency tracking using the other of the first AGC setting and the second AGC setting.
    Type: Application
    Filed: August 14, 2020
    Publication date: August 4, 2022
    Inventors: Din-Hwa HUANG, Tsang-Wei YU
  • Patent number: 11405813
    Abstract: Aspects of the disclosure provide apparatuses and methods for wireless communications. One apparatus includes processing circuitry that selects one or more first available radio link monitoring reference signal (RLM-RS) samples from a plurality of received RLM-RS samples based on signal qualities of the one or more first available RLM-RS samples. The one or more first available RLM-RS samples are received within a first evaluation period. The processing circuitry determines whether a total number of the one or more first available RLM-RS samples is less than a target number. When the total number of the one or more first available RLM-RS samples is determined to be less than the target number, the processing circuitry determines a second evaluation period that is greater than the first evaluation period, and performs an RLM procedure in an unlicensed band within the second evaluation period.
    Type: Grant
    Filed: August 13, 2020
    Date of Patent: August 2, 2022
    Assignee: MEDIATEK INC.
    Inventors: Hsuan-Li Lin, Chiou-Wei Tsai, Tsang-Wei Yu
  • Publication number: 20220217562
    Abstract: Apparatus and methods are provided for multiple concurrent gap configuration. In one novel aspect, the UE obtains the concurrent gap configuration which configures a concurrent measurement gap and one or more associated usages for the concurrent measurement gap, configures the concurrent measurement gap. In one embodiment, the UE reports a UE concurrent gap support capability to the wireless network indicating a concurrent measurement gap is supported by the UE and/or indicates one or more associated usages supported by the UE. In another embodiment, a measurement prioritization is performed when the concurrent measurement gap overlaps with another MG. The measurement prioritization is based on a measurement priority indication from the NW or determined by the UE or based on a set of preconfigured multiple gap sharing factors indicating a set of percentages for each corresponding measurement gap.
    Type: Application
    Filed: January 4, 2022
    Publication date: July 7, 2022
    Inventors: Zhixun Tang, Tsang-Wei Yu, Chun-Fan Tsai
  • Publication number: 20220116172
    Abstract: Aspects of the disclosure provide an electronic device including processing circuitry and a method. The processing circuitry can determine whether a collision is scheduled in one of a set of carriers at a same time with an SRS transmission switching process including an SRS transmission scheduled in a current carrier in the set of carriers. The set of carriers is activated for the electronic device. When no collision is determined to be scheduled in the set of carriers at the same time with the SRS transmission switching process, the processing circuitry can determine a SRS interruption duration for a victim carrier to be interrupted by the SRS transmission switching process based on a SRS transmission switching duration, a timing between the SRS transmission switching process and the victim carrier, a numerology of the current carrier, and a numerology of the victim carrier and transmit the SRS transmission.
    Type: Application
    Filed: February 14, 2020
    Publication date: April 14, 2022
    Applicant: MEDIATEK SINGAPORE PTE. LTD.
    Inventors: Zhixun TANG, Tsang-Wei YU
  • Publication number: 20220104044
    Abstract: Methods are proposed for UE to perform radio link monitoring (RLM) and beam failure detection (BFD) measurements in a relaxed measurement state with an extended evaluation period for power saving. Different criteria for UE to enter and exit the relaxed RLM/BFD measurement state are proposed. In relaxed measurement state, UE can perform RLM/BFD measurements with an extended evaluation period by a scaling factor K when the serving cell quality is higher than a threshold and/or when the serving cell quality variation is lower than a threshold within a time period.
    Type: Application
    Filed: September 10, 2021
    Publication date: March 31, 2022
    Inventors: Din-Hwa Huang, Tsang-Wei Yu, Hsuan-Li Lin, Wei-De Wu
  • Publication number: 20220095127
    Abstract: Aspects of the disclosure provide an electronic device including processing circuitry and a method for cell activation of a secondary cell (SCell). The electronic device is configured with the SCell to be activated. The processing circuitry can determine signal qualities of reference signals transmitted from a network to the electronic device. The signal qualities can correspond to powers of the reference signals received from corresponding reception directions by the electronic device. The processing circuitry can report at least one of the signal qualities to the network. The processing circuitry can receive, from the network, a signal indicating a selected transmission direction to be used by the electronic device for downlink (DL) communication with network in the SCell. The selected transmission direction is based on the reported at least one of the signal qualities. The SCell can be a cell to be activated first in a frequency range 2.
    Type: Application
    Filed: February 14, 2020
    Publication date: March 24, 2022
    Applicant: MediaTek Singapore Pte. Ltd.
    Inventors: Zhixun TANG, Tsang-Wei YU, Hsuan-LI LIN
  • Publication number: 20210409975
    Abstract: A method for expediting Secondary Cell (SCell) or Primary cell of a secondary cell group (PSCell) addition or activation is proposed. A User Equipment (UE) receives a command that indicates adding or activating an SCell or a PSCell, wherein the command comprises information of a temporary Reference Signal (RS). The UE detects the temporary RS according to the information, and uses the temporary RS to add or activate the SCell or the PSCell.
    Type: Application
    Filed: May 14, 2021
    Publication date: December 30, 2021
    Inventors: Chi-Hsuan Hsieh, Din-Hwa Huang, Tsang-Wei Yu, Chun-Fan Tsai
  • Patent number: 11212853
    Abstract: Aspects of the disclosure can provide a method and an apparatus for Cell Global Identifier (CGI) reading in a New Radio (NR) system. The method can include receiving a request over a serving cell to report Cell Global Identifier (CGI) information of a target cell to a network node, and decoding system information to acquire the CGI information of the target cell by using Synchronization Signal Block (SSB) and Remaining Minimum System Information (RMSI) occasions in Discontinuous Reception (DRX) off duration of the serving cell, using at least one autonomous gap in data reception and transmission of the serving cell, or using at least one specific gap to interrupt data reception and transmission in DRX on durations of the serving cell. Subsequently, the CGI information of the target cell can be transmitted to the network node.
    Type: Grant
    Filed: July 26, 2019
    Date of Patent: December 28, 2021
    Assignee: MediaTek Singapore Pte. Ltd.
    Inventors: Zhixun Tang, Tsang-Wei Yu, Tao Chen, Chun-Fan Tsai
  • Patent number: 11206563
    Abstract: A User Equipment (UE) including a wireless transceiver and a controller is provided. The wireless transceiver performs wireless transmission and reception to and from a first service network and a second service network. The controller receives a Radio Resource Control (RRC) message comprising a measurement configuration for SFN (System Frame Number) and Frame Timing Difference (SFTD) from the first service network via the wireless transceiver, performs first SFTD measurements between a Primary Cell (PCell) of the first service network and neighbor cells of the second service network via the wireless transceiver in response to the measurement configuration for SFTD indicating the neighbor cells, and sends a result of the first SFTD measurements to the first service network via the wireless transceiver.
    Type: Grant
    Filed: January 8, 2019
    Date of Patent: December 21, 2021
    Assignee: MEDIATEK INC.
    Inventors: Chun-Fan Tsai, Li-Chuan Tseng, Tsang-Wei Yu, Yuanyuan Zhang