Patents by Inventor Hsuan-Li Lin

Hsuan-Li Lin 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: 20210144049
    Abstract: A method of performing beam failure recovery (BFR) procedure in primary cell and secondary cells with reduced UE complexity is proposed. A UE is configured to operate in one or multiple frequency bands under carrier aggregation or dual connectivity. The UE performs beam failure recovery (BFR) procedure on one serving cell for one frequency band across FR1 and FR2. The serving cell is an active serving cell including both primary cell (PCell) and secondary cells (SCells). Specifically, for SCell BFR procedure, a sharing factor K is introduced when multiple SCells are configured to perform BFR procedure. In one embodiment, the SCell BFR evaluation period equals to a predefined PCell BFR evaluation period times the sharing factor K.
    Type: Application
    Filed: October 7, 2020
    Publication date: May 13, 2021
    Inventor: Hsuan-Li Lin
  • 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
  • Publication number: 20210111851
    Abstract: A method of activating a secondary cell (SCell) can include receiving on a primary cell (PCell) at a user equipment (UE) a first medium access control (MAC) control element (CE) for activating the SCell, receiving on the PCell a second MAC CE for indicating a first transmission configuration indication (TCI) state for receiving one of a physical downlink control channel (PDCCH) or a physical downlink shared channel (PDSCH) of the SCell, starting to perform a time-frequency tracking process in the SCell based on a synchronization signal block (SSB) indicated in the first TCI state without waiting for an arrival of a third MAC CE on the PCell for activating a semi-persistent (SP) channel state information reference signal (CSI-RS) resource set of the SCell, and performing a CSI reporting process based on the SP CSI-RS resource set activated by the third MAC CE on the SCell.
    Type: Application
    Filed: September 15, 2020
    Publication date: April 15, 2021
    Applicant: MEDIATEK INC.
    Inventor: Hsuan-Li LIN
  • Patent number: 10979925
    Abstract: A method of CSI-RS Measurement Timing Configuration (CMTC) is proposed. The CMTC timing window is specifically configured to UE for CSI-RS RRM/mobility measurement via Radio Resource Control (RRC) signaling. CMTC can be carrier-specific or measurement object (MO) specific configured. Multiple CMTC can be configured to a UE, in a carrier-specific or a measurement object (MO) specific fashion. For inter frequency measurement, one CMTC on a carrier can be configured. For intra frequency measurement, up to two CMTC on a carrier can be configured. The CSI-RS resources associated to a given cell shall be configured within one slot. The CSI-RS resources on a carrier can be configured in the carrier specific CMTC. A gap shall be configured to include the CMTC for inter-frequency measurement.
    Type: Grant
    Filed: February 1, 2019
    Date of Patent: April 13, 2021
    Assignee: MediaTek INC.
    Inventor: Hsuan-Li Lin
  • Patent number: 10966249
    Abstract: Distributed resource allocation for devices can be facilitated via a priority sequencing scheme. The priority sequencing scheme can mitigate source device collisions by assigning priority values to source devices and channels associated with the source devices. Various priority sequencing can be used based upon whether source devices can only communicate with a limited number of sink devices or whether source devices can communicate with all sink devices.
    Type: Grant
    Filed: December 14, 2018
    Date of Patent: March 30, 2021
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Hsuan-Li Lin, Ching-Yao Huang
  • Publication number: 20210051485
    Abstract: Aspects of the disclosure provide a method and an apparatus. For example, the apparatus can include receiving circuitry and processing circuitry. The receiving circuitry can be configured to receive from a cell a Q number and one or more SSBs within DRS transmission windows associated with the cell. The processing circuitry can be configured to, for each of the DRS transmission windows, perform a modulo operation on position indexes of the SSB with the Q number to determine SSB beam indexes (SBIs) of the SSBs. A remainder of each of the position indexes is an SBI of one of the SSBs that corresponds to the position index. The processing circuitry can be further configured to combine RRM measurements of the SSBs within the DRS transmission windows based on the SBIs of the SSBs to determine the quality of the cell.
    Type: Application
    Filed: August 6, 2020
    Publication date: February 18, 2021
    Applicant: MEDIATEK INC.
    Inventors: Hsuan-Li LIN, Chiou-Wei TSAI, Tsang-Wei YU
  • Publication number: 20210051507
    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: Application
    Filed: August 13, 2020
    Publication date: February 18, 2021
    Applicant: MEDIATEK INC.
    Inventors: Hsuan-Li LIN, Chiou-Wei TSAI, Tsang-Wei YU
  • Publication number: 20210051498
    Abstract: In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may be a UE. The UE receives, through a non-physical layer signaling, a configuration indicating to receive a first reference signal in a set of OFDM symbols in a first slot. The UE attempts to detect a physical layer signaling in the first slot or in a second slot prior to the first slot. The UE refrains from conducting measurements of the first reference signal, when the physical layer signaling is detected by the UE and includes a first indication.
    Type: Application
    Filed: July 16, 2020
    Publication date: February 18, 2021
    Inventors: Chiou-Wei Tsai, Jiann-Ching Guey, Hsuan-Li Lin, Chun-Hsuan Kuo
  • Patent number: 10924950
    Abstract: Techniques and examples of evaluation period for radio link monitoring (RLM) in New Radio (NR) mobile communications are described. An apparatus performs RLM with respect to a radio link with a cell of a wireless network. In performing the RLM, the apparatus determines whether an RLM reference signal (RLM-RS) is overlapped with one or more other reference signals and, responsive to a result of the determining indicating that the RLM-RS is at least partially overlapped with the one or more other reference signals, extends an evaluation period for the RLM.
    Type: Grant
    Filed: May 10, 2019
    Date of Patent: February 16, 2021
    Inventors: Hsuan-Li Lin, Kuhn-Chang Lin
  • Patent number: 10911997
    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: February 2, 2021
    Assignee: MEDIATEK INC.
    Inventors: Hsuan-Li Lin, Tsang-Wei Yu, Chiao Yao Chuang
  • Publication number: 20200351842
    Abstract: An apparatus receives, from a wireless network, a transmission configuration indication (TCI) switch command to switch to a target TCI state. The apparatus determines a period based on whether a condition with respect to the target TCI state is met. The apparatus then completes switching to the target TCI state within the period.
    Type: Application
    Filed: April 30, 2020
    Publication date: November 5, 2020
    Inventor: Hsuan-Li Lin
  • Publication number: 20200351041
    Abstract: An apparatus receives, from a wireless network, a secondary cell (SCell) activation command. The apparatus determines whether a target SCell is known. Based on a result of the determining, the apparatus performs one or more operations.
    Type: Application
    Filed: April 30, 2020
    Publication date: November 5, 2020
    Inventor: Hsuan-Li Lin
  • Publication number: 20200314675
    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: Application
    Filed: March 31, 2020
    Publication date: October 1, 2020
    Inventors: Hsuan-Li Lin, Tsang-Wei Yu
  • Publication number: 20200314676
    Abstract: Apparatus and methods are provided for NR CSI-RS based BFD/RLM in FR2. In one novel aspect, BFD in FR2, the evaluation period is extended by the N factor if the CSI-RS for BFD is in a resource set configured with repetition ON or the BFD is performed on CSI-RS#1 without beam information or, where the CSI-RS#1 is configured without beam information if CSI-RS for BFD is not QCL-TypeD with SSB for L1-RSRP beam reporting, nor the CSI-RS for BFD is not QCL-TypeD with CSI-RS for L1-RSRP beam reporting. In one embodiment, the N factor equals to 1 only when at least one predefined RX beam information is included in the RRC configuration. In another embodiment, the predefined RX beam information for BFD is Type-D QCL information for a synchronization signal block (SSB) configured in its TCI state or the CSI-RS#1 is configured with repetition ON.
    Type: Application
    Filed: March 31, 2020
    Publication date: October 1, 2020
    Inventor: Hsuan-Li Lin
  • Patent number: 10630404
    Abstract: A method of performing received signal strength indication (RSSI) measurements in new radio (NR) networks is proposed. When RSSI-Measurement time slots and OFDM symbols are configured by high-layer signaling, UE can assume the timing reference of a target carrier is the frame boundary of the serving cell or any detected cells on that carrier. UE then performs RSSI measurements according to the timing reference and the configured RSSI-Measurement slot/symbol. UE derives the timing location of the configured slot/symbol according to the timing reference and the subcarrier spacing (SCS) of the synchronization signal block (SSB) in the target carrier.
    Type: Grant
    Filed: January 9, 2019
    Date of Patent: April 21, 2020
    Assignee: MEDIATEK INC.
    Inventor: Hsuan-Li Lin
  • Publication number: 20200107337
    Abstract: Apparatus and methods are provided for L1-RSRP. In one novel aspect, L1-RSRP are performed in a measurement period based on measurement factor P and N, which are determined based on configuration information. The UE performs scheduling restriction when the measurement factor N indicates scheduling restriction is needed. In one embodiment, the L1-RSRP measurement period is extended by N to compensate the L1-RSRP measurement for receiving beam training. In another embodiment, the L1-RSRP measurement period further depends on a second measurement factor P, wherein the measurement period is extended by P to compensate the L1-RSRP measurement for one or more reference signal (RS) overlapping. In one embodiment, the RS overlapping occurs for at least one overlapping occasion comprising the L1-RSRP overlaps with SSB measurement timing configuration (SMTC), the L1-RSRP overlaps with measurement gap (MG).
    Type: Application
    Filed: September 26, 2019
    Publication date: April 2, 2020
    Inventor: Hsuan-Li Lin
  • Patent number: 10523392
    Abstract: Aspects of the disclosure provide a method for transmission of downlink mobile reference signals (MRSs). The method can include transmitting an MRS that includes a first part MRS and an additional part MRS, wherein the first part MRS includes first MRS bursts each multiplexed with a synchronization signal block (SS block), and the additional part MRS includes second MRS bursts and is configurable to be transmitted or not transmitted.
    Type: Grant
    Filed: January 8, 2018
    Date of Patent: December 31, 2019
    Assignee: MEDIATEK INC.
    Inventors: Hsuan-Li Lin, Pei-Kai Liao, Chien-Chang Li
  • Publication number: 20190393980
    Abstract: Methods are proposed to define UE behavior for performing synchronization signal block (SSB) based radio link monitoring (RLM) and channel state information reference signal (CSI-RS) based RLM. In a first novel aspect, if CSI-RS based RLM-RS is not QCLed to any CORESET, then UE determines that CSI-RS RLM configuration is error and does not perform RLM accordingly. In a second novel aspect, SSB for RLM and RLM CSI-RS resources are configured with different numerologies. UE perform SSB based RLM and CSI-RS based RLM based on whether the SSB and CSI-RS resources are TDMed configured by the network. In a third novel aspect, when multiple SMTC configurations are configured to UE, UE determines an SMTC period and whether SMTC and RLM-RS are overlapped for the purpose of RLM evaluation period determination.
    Type: Application
    Filed: June 21, 2019
    Publication date: December 26, 2019
    Inventors: Hsuan-Li Lin, Kuhn-Chang Lin
  • Patent number: 10516465
    Abstract: A method for harmonized operation between radio link monitor and beam failure recovery is proposed. In one example, upon indication of unsuccessful recovery from beam failure, a counter is initiated to count a configured number of OOS indication before RLF is declared due to beam failure. In another example, upon indication of successful recovery from beam failure, a counter is initiated to count a configured number of IS indication before starting over RLM procedure on its previous observations on failed beams. As a result, either early RLF declaration or RLM reset may be triggered based on BFR procedure to more accurately maintain the link quality.
    Type: Grant
    Filed: September 10, 2018
    Date of Patent: December 24, 2019
    Assignee: MEDIATEK INC.
    Inventors: Chia-Hao Yu, Yuanyuan Zhang, Hsuan-Li Lin, Jiann-Ching Guey
  • Publication number: 20190349797
    Abstract: Techniques and examples of evaluation period for radio link monitoring (RLM) in New Radio (NR) mobile communications are described. An apparatus performs RLM with respect to a radio link with a cell of a wireless network. In performing the RLM, the apparatus determines whether an RLM reference signal (RLM-RS) is overlapped with one or more other reference signals and, responsive to a result of the determining indicating that the RLM-RS is at least partially overlapped with the one or more other reference signals, extends an evaluation period for the RLM.
    Type: Application
    Filed: May 10, 2019
    Publication date: November 14, 2019
    Inventors: Hsuan-Li Lin, Kuhn-Chang Lin