公开(公告)号：US20190081689A1

公开(公告)日：2019-03-14

申请号：US16126546

申请日：2018-09-10

Applicant: MEDIATEK INC.

Inventor： Chia-Hao Yu ,  Yuanyuan Zhang ,  Hsuan-Li Lin ,  Jiann-Ching Guey

IPC: H04B7/06 ,  H04B7/08 ,  H04W72/04 ,  H04W36/06 ,  H04W74/08 ,  H04W24/10

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.

公开(公告)号：US11910257B2

公开(公告)日：2024-02-20

申请号：US17930308

申请日：2022-09-07

Applicant: MEDIATEK INC.

Inventor： Din-Hwa Huang ,  Hsuan-Li Lin ,  Tsang-Wei Yu ,  Yih-Shen Chen ,  Chiao Yao Chuang

IPC: H04B7/06 ,  H04W8/24 ,  H04L5/00 ,  H04W36/22 ,  H04L25/02 ,  H04W72/04 ,  H04W36/00 ,  H04W72/23 ,  H04W36/38 ,  H04W72/044

CPC classification number: H04W36/0094 ,  H04L5/0057 ,  H04W36/0088 ,  H04W36/38 ,  H04W72/046 ,  H04W72/23 ,  H04L5/0007 ,  H04L5/0048

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.

公开(公告)号：US20230262824A1

公开(公告)日：2023-08-17

申请号：US18135725

申请日：2023-04-17

Applicant: MediaTek INC.

Inventor： Din-Hwa Huang ,  Chun-Fan Tsai ,  Tsang-Wei Yu ,  Hsuan-Li Lin

IPC: H04W76/20 ,  H04L5/00

CPC classification number: H04W76/20 ,  H04L5/0051 ,  H04W80/02

Abstract: A method for expediting Secondary Cell (SCell) activation is proposed. Under the proposed enhanced direct SCell activation procedure, while adding an SCell to be activated state, the network can add transmission configuration indication (TCI) state information for the SCell in a radio resource control (RRC) signaling message, in addition to TCI state information for a list of candidate TCI states. Upon receiving the RRC signaling message, UE adds the SCell accordingly, and then activates the SCell based on the received TCI state information. Because there is no additional time required for receiving and processing the TCI state information via a media access control (MAC) control element (CE), the SCell activation time is reduced.

公开(公告)号：US20230224901A1

公开(公告)日：2023-07-13

申请号：US17944918

申请日：2022-09-14

Applicant: MediaTek Inc.

Inventor： Hsuan-Li Lin

IPC: H04W72/12

CPC classification number: H04W72/1278

Abstract: Various solutions for scheduling restriction with higher subcarrier spacing (SCS) with respect to user equipment and network apparatus in mobile communications are described. An apparatus may determine whether a capability is enabled. The apparatus may apply a scheduling restriction on K symbols before synchronization signal block (SSB) symbols and K symbols after the SSB symbols in an event that the capability is enabled. The K symbols are greater than 1 symbol. The apparatus may transmit uplink symbols or receiving downlink symbols outside the symbols with the scheduling restriction.

公开(公告)号：US11515978B2

公开(公告)日：2022-11-29

申请号：US17090896

申请日：2020-11-06

Applicant: MEDIATEK INC.

Inventor： Hsuan-Li Lin ,  Zhixun Tang ,  Tsang-Wei Yu

IPC: H04L5/00 ,  H04W72/04

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.

公开(公告)号：US11490283B2

公开(公告)日：2022-11-01

申请号：US17216077

申请日：2021-03-29

Applicant: MediaTek Inc.

Inventor： Chih-Kai Yang ,  Hsuan-Li Lin ,  Tsang-Wei Yu

IPC: H04W24/10 ,  H04B17/336 ,  H04B7/06 ,  H04L5/00 ,  H04W56/00

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.

公开(公告)号：US20220337473A1

公开(公告)日：2022-10-20

申请号：US17856308

申请日：2022-07-01

Applicant: MEDIATEK INC.

Inventor： Hsuan-Li Lin

IPC: H04L41/0654 ,  H04W76/15 ,  H04W74/08 ,  H04B7/06 ,  H04W24/08

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.

公开(公告)号：US11405813B2

公开(公告)日：2022-08-02

申请号：US16992812

申请日：2020-08-13

Applicant: MEDIATEK INC.

Inventor： Hsuan-Li Lin ,  Chiou-Wei Tsai ,  Tsang-Wei Yu

IPC: H04W24/10 ,  H04L5/00 ,  H04W56/00 ,  H04W16/14 ,  H04B17/336

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.

公开(公告)号：US20210258098A1

公开(公告)日：2021-08-19

申请号：US17313710

申请日：2021-05-06

Applicant: MEDIATEK INC.

Inventor： Hsuan-Li Lin ,  Kuhn-Chang Lin

IPC: H04L1/00 ,  H04L5/00 ,  H04W24/10 ,  H04W24/08 ,  H04W56/00 ,  H04B7/01 ,  H04L27/26 ,  A01G31/02 ,  A01G33/00 ,  A01K63/04 ,  A01K63/06 ,  A01M31/00 ,  C02F3/00 ,  C02F3/32 ,  C12P5/02

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.

公开(公告)号：US20210144049A1

公开(公告)日：2021-05-13

申请号：US17064893

申请日：2020-10-07

Applicant: MEDIATEK INC.

Inventor： Hsuan-Li Lin

IPC: H04L12/24 ,  H04W76/15 ,  H04W24/08 ,  H04W74/08 ,  H04B7/06

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.