公开(公告)号：US12108490B2

公开(公告)日：2024-10-01

申请号：US18232814

申请日：2023-08-10

Applicant: MEDIATEK INC.

Inventor： Chiou-Wei Tsai ,  Cheng-Rung Tsai

IPC: H04W8/24 ,  H04B7/06 ,  H04L5/00 ,  H04W16/14 ,  H04W24/10

CPC classification number: H04W8/24 ,  H04B7/0626 ,  H04B7/0695 ,  H04L5/0051 ,  H04W16/14 ,  H04W24/10

Abstract: A method for UE capability signaling for supporting reference signal based measurements in NR-U is proposed. A UE transfers its UE capability information to a mobile communication network, wherein the UE capability information includes information regarding whether the UE supports measurements of a CSI-RS on an unlicensed cell. The UE receives configuration from the mobile communication network, wherein the configuration includes information regarding radio resources of the CSI-RS on the unlicensed cell. The UE measures the CSI-RS on the unlicensed cell based on the configuration.

公开(公告)号：US11743926B2

公开(公告)日：2023-08-29

申请号：US17061391

申请日：2020-10-01

Applicant: MediaTek Inc.

Inventor： Chiou-Wei Tsai ,  Cheng-Rung Tsai

IPC: H04W4/00 ,  H04W72/53 ,  H04W24/10 ,  H04W8/24 ,  H04W74/08 ,  H04W72/23

CPC classification number: H04W72/53 ,  H04W8/24 ,  H04W24/10 ,  H04W72/23 ,  H04W74/0816

Abstract: Various solutions for dynamic physical downlink control channel (PDCCH) monitoring with respect to user equipment and network apparatus in mobile communications are described. An apparatus may receive a switching group configuration indicating a group of serving cells which are bundled. The apparatus may receive a first configuration and a second configuration. The apparatus may perform control signal monitoring according to the first configuration. The apparatus may determine to switch to the second configuration on a first serving cell of the group of serving cells according to an indication associated with the first serving cell. The apparatus may apply the switching to all serving cells within the group of serving cells according to the indication associated with the first serving cell.

公开(公告)号：US20230189362A1

公开(公告)日：2023-06-15

申请号：US18105760

申请日：2023-02-03

Applicant: MediaTek INC.

Inventor： Cheng-Rung Tsai ,  Hsuan-Li Lin

IPC: H04W76/15 ,  H04L5/00

CPC classification number: H04W76/15 ,  H04L5/0051

Abstract: Apparatus and methods are provided for simultaneous DL transmissions. In one novel aspect, performing simultaneous DL transmissions with multiple TCI states is provided. A UE can be configured, by a BS, with a plurality of TCI states. After being configured with the TCI states, the UE can determine multiple TCI states for simultaneous DL transmissions and transmit a report to the BS to inform the BS of that the multiple TCI states are for simultaneous DL transmissions. Then, the UE applies the multiple TCI states for simultaneous DL transmissions.

公开(公告)号：US20230090317A1

公开(公告)日：2023-03-23

申请号：US17480933

申请日：2021-09-21

Applicant: MEDIATEK INC.

Inventor： Gyu Bum Kyung ,  Cheng-Rung Tsai

IPC: H04B7/08 ,  H04W76/19 ,  H04L5/00 ,  H04W56/00 ,  H04W80/02

Abstract: A unified solution to support all PCell, SCell, and per-TRP based beam failure recovery (BFR) procedure is proposed, with less standard impact and reduced latency. In a first novel aspect, a set of reference signals (RSs) for BFD is configured for each BWP of a serving cell, and a maximum number of BFD RSs (N) per TRP for each BWP of a serving cell is configured. In a second novel aspect, for single DCI multi-TRP, the BFD RSs can be updated via MAC CE to reduce latency. In a third novel aspect, new RRC parameters for BFD RSs and candidate beam RSs are configured, with different sets of SSB/CSI-RS resources associated to each TRP. Specifically, an additional lists of SSB/CSI-RS resource set is defined for each corresponding TRP.

公开(公告)号：US20220231801A1

公开(公告)日：2022-07-21

申请号：US17542389

申请日：2021-12-04

Applicant: MEDIATEK INC.

Inventor： Cheng-Rung Tsai

IPC: H04L5/00 ,  H04W72/04

Abstract: Apparatus and methods are provided for configuring application of TCI state to CCs. In one novel aspect, a UE may apply one or more TCI states to a set of CCs based on a slot of a reference CC. In particular, a BS can transmit an indication of one or more TCI states to a UE. The UE can receive the indication of the one or more TCI states from the BS. Then, the can apply the one or more TCI states to a set of CCs from a specific slot of a reference CC. The reference CC may have a smallest SCS among the set of the CCs.

公开(公告)号：US20220124752A1

公开(公告)日：2022-04-21

申请号：US17480942

申请日：2021-09-21

Applicant: MEDIATEK INC.

Inventor： Cheng-Rung Tsai

IPC: H04W72/12 ,  H04W52/14

Abstract: Apparatus and methods are provided for configuring TCI state activation and indication for DL transmission and UL transmission. In one novel aspect, list(s) associated with DL transmission, UL transmission or both DL transmission and UL transmission is/are provided. In particular, a UE can be configured with a plurality of TCI states. After being configured with the TCI states, the UE can receive a command that includes the list(s) associated with DL transmission, UL transmission or both DL transmission and UL transmission. The list(s) records a plurality of TCI state identifications. Accordingly, when the UE receives a value of a TCI field from a DCI and the value maps to designated TCI state identification(s) recorded on the list(s), the UE can apply designated TCI state(s) corresponding to the designated TCI state identification(s) for DL transmission, UL transmission or both DL transmission and UL transmission.

公开(公告)号：US20210144717A1

公开(公告)日：2021-05-13

申请号：US17061391

申请日：2020-10-01

Applicant: MediaTek Inc.

Inventor： Chiou-Wei Tsai ,  Cheng-Rung Tsai

IPC: H04W72/04 ,  H04W24/10 ,  H04W74/08 ,  H04W8/24

Abstract: Various solutions for dynamic physical downlink control channel (PDCCH) monitoring with respect to user equipment and network apparatus in mobile communications are described. An apparatus may receive a switching group configuration indicating a group of serving cells which are bundled. The apparatus may receive a first configuration and a second configuration. The apparatus may perform control signal monitoring according to the first configuration. The apparatus may determine to switch to the second configuration on a first serving cell of the group of serving cells according to an indication associated with the first serving cell. The apparatus may apply the switching to all serving cells within the group of serving cells according to the indication associated with the first serving cell.

公开(公告)号：US20200153497A1

公开(公告)日：2020-05-14

申请号：US16683072

申请日：2019-11-13

Applicant: MEDIATEK INC.

Inventor： Lung-Sheng Tsai ,  Cheng-Rung Tsai ,  Weidong Yang

IPC: H04B7/06 ,  H04W24/10 ,  H04B17/336

Abstract: Apparatus and methods are provided multiple transmission. In one novel aspect, TCI-state indication for non-coherent joint transmission (NCJT) channel station information (CSI) reporting is provided. The UE receives NCJT from at least a first transmission from a first transmission point (TRP) and a second transmission from a second TRP, determines a receiving (RX) spatial filter information for the NCJT and acquires channel state information (CSI) according to a report setting based on the determined RX spatial filter to simultaneously acquire at least two channel measurement resources (CMRs) and one interference measurement resource (IMR), wherein at least one CMR is from the first TRP and at least one CMR is from the second TRP. In one embodiment, the RX spatial filter information is determined based on a group-based beam reporting procedure performed by the UE. In another embodiment, the RX spatial filter information is determined based on TCI-state received from the wireless network.

公开(公告)号：US20200052844A1

公开(公告)日：2020-02-13

申请号：US16536571

申请日：2019-08-09

Applicant: MEDIATEK INC.

Inventor： Chia-Hao Yu ,  Cheng-Rung Tsai ,  Weidong Yang

IPC: H04L5/00 ,  H04W72/04

Abstract: A method of default Quasi-Co-Location (QCL) assumption for Physical Downlink Shared Channel (PDSCH) reception in NR network is proposed. When PDSCH is scheduled by a DCI over PDCCH after a Scheduling Offset, the spatial RX filter for the PDSCH reception can be determined according to a QCL indication conveyed by the DCI. When the Scheduling Offset for PDSCH reception scheduled by DCI is less than a time duration, then a default QCL assumption is applied. UE assumes that the DMRS ports of PDSCH of a serving cell are QCLed with the RS(s) with respect to QCL parameter(s) used for PDCCH QCL indication of a CORESET. The CORESET is associated with a UE-monitored search space in the latest slot with the lowest CORESET-IF on an active BWP on the serving cell.

公开(公告)号：US20240121055A1

公开(公告)日：2024-04-11

申请号：US18371515

申请日：2023-09-22

Applicant: MEDIATEK INC.

Inventor： Yi-Ru Chen ,  Cheng-Rung Tsai

IPC: H04L5/00 ,  H04W72/1268 ,  H04W72/232

CPC classification number: H04L5/0051 ,  H04W72/1268 ,  H04W72/232

Abstract: A UE receives configurations of first and second configured SRS resource sets for non-codebook based transmission. The UE receives DCI containing a first SRI field and a second SRI field. The first SRI field indicates an SRS resource of a first indicated SRS resource set. The second SRI field indicates an SRS resource of a second indicated SRS resource set. A size of the first SRI field is based on a first maximum number of layers, a second maximum number of layers, a third maximum number of layers, a first number of SRS resources in the first indicated SRS resource set, and a second number of SRS resources in the second indicated SRS resource set. A size of the second SRI field is based on the third maximum number of layers and the second number of SRS resources in the second indicated SRS resource set.