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).

  • 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
  • Publication number: 20210360725
    Abstract: Apparatus and methods are provided for interruption handling for V2X communication. In one novel aspect, the UE detects an interruption event on the first SL and performs interruption procedure allowing stopping transmission and reception on one or more links of the UE based on the interruption event. In one embodiment, the UE supports both the LTE V2X sidelink and the NR V2X sidelink. The UE performs interruption procedure allowing both the LTE V2X sidelink and the NR V2X sidelink to stop transmission or reception for a preconfigured period. In one embodiment, the interruption event is the UE switching the SL between the LTE V2X sidelink and NR V2X sidelink. Upon detecting the SL switching interruption event, the UE performs the interruption procedure on the Uu link of the UE for a preconfigured period. In one embodiment, the preconfigured period is based on a slot configuration of the first SL.
    Type: Application
    Filed: May 14, 2021
    Publication date: November 18, 2021
    Inventors: Zhixun Tang, Tsang-Wei Yu
  • Publication number: 20210360458
    Abstract: User equipment (UE) for Received Signal Strength Indicator (RSSI) measurement is provided. The UE may include a radio frequency (RF) signal processing device and a processor. The RF signal processing device receives an RSSI measurement. The processor is coupled to the RF signal processing device. The processor determines whether the RSSI measurement is an intra-frequency RSSI measurement or an inter-frequency RSSI measurement based on the carrier bandwidth of the UE and a sub-band which is configured for the RSSI measurement.
    Type: Application
    Filed: April 29, 2021
    Publication date: November 18, 2021
    Inventors: Hsuan-Li LIN, Tsang-Wei YU
  • Patent number: 11153840
    Abstract: A user equipment terminal (UE) operates in a wireless network. The UE receives, from a base station, timing advance parameter values which indicate a time difference measured by the base station between uplink and downlink for a band occupied by one or more serving cells. The UE calculates a length of a post-measurement gap (post-MG) time period for the one or more serving cells based on the timing advance parameter values. The post-MG time period is after a measurement gap before uplink transmission. The UE then sends an indication of the length of the post-MG time period to the base station.
    Type: Grant
    Filed: March 27, 2020
    Date of Patent: October 19, 2021
    Assignee: MediaTek Inc.
    Inventors: Tsang-Wei Yu, Din-Hwa Huang
  • Publication number: 20210321279
    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: Application
    Filed: March 29, 2021
    Publication date: October 14, 2021
    Inventors: Chih-Kai Yang, Hsuan-Li Lin, Tsang-Wei Yu
  • Publication number: 20210251040
    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: February 10, 2021
    Publication date: August 12, 2021
    Applicant: MediaTek Singapore Pte. Ltd.
    Inventors: Zhixun TANG, Tsang-Wei YU, Hsuan-Li LIN
  • Publication number: 20210250949
    Abstract: Methods and apparatus of performing spatial relation switching in new radio (NR) system is proposed. In one embodiment, a configured spatial relation of an uplink channel is Quasi-Co-Located (QCLed) to the source of a downlink reference signal (DL RS). In this QCLed relation, the active spatial relation switching shall differentiate known and unknown situation. In another embodiment, the configured spatial relation is QCLed to the root source of an uplink sounding reference signal (SRS). In this QCLed relation, the active spatial relation switching does not need to differentiate known and unknown situation. The proposed spatial relation switching shall apply for physical uplink shared channel (PUSCH), physical uplink control channel (PUCCH), and SRS transmission.
    Type: Application
    Filed: February 9, 2021
    Publication date: August 12, 2021
    Inventors: Zhixun Tang, Tsang-Wei Yu, Hsuan-Li Lin
  • Patent number: 11089499
    Abstract: Apparatus and methods are provided for candidate beam detection (CBD) in DRX mode. In one novel aspect, the CBD evaluation period uses the uniformed scaling factor and the base period for the CBD evaluation period is the same when no DRX is configured and when the DRX is configured with DRX cycle length smaller than or equals to a predefined threshold. In one embodiment, the UE receives DRX configuration including a DRX cycle length, determines a base period for an evaluation period of CBD measurements based on the DRX cycle length and determines a multiplicator for the evaluation period based on a scaling factor and one or more measurement factors, and performs CBD measurements based on the evaluation period, wherein the evaluation period is based on the determined base period and the multiplicator. In one embodiment, the scaling factor is the same for all DRX configurations.
    Type: Grant
    Filed: March 31, 2020
    Date of Patent: August 10, 2021
    Assignee: MediaTek INC.
    Inventors: Hsuan-Li Lin, Tsang-Wei Yu
  • Publication number: 20210143956
    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: Application
    Filed: November 6, 2020
    Publication date: May 13, 2021
    Inventors: Hsuan-Li Lin, Zhixun Tang, Tsang-Wei Yu