公开(公告)号：US11558762B2

公开(公告)日：2023-01-17

申请号：US16835486

申请日：2020-03-31

Applicant: Mediatek Inc.

Inventor： Lung-Sheng Tsai

IPC: H04W24/08 ,  H04W72/04 ,  H04L1/00 ,  H04W76/27 ,  H04W80/02 ,  H04W80/08

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 a first trigger. The UE determines, based on the first trigger, whether it is possible that a first transmission and reception point (TRP) and a second TRP are to transmit a first down link control channel and a second down link control channel to the UE concurrently on a carrier. The UE monitors the first down link control channel and the second down link control channel in a particular slot when it is possible that the first TRP and the second TRP are to transmit the first down link control channel and the second down link control channel to the UE concurrently on the carrier.

公开(公告)号：US20220368379A1

公开(公告)日：2022-11-17

申请号：US17719450

申请日：2022-04-13

Applicant: MEDIATEK INC.

Inventor： Lung-Sheng Tsai

IPC: H04B7/0417 ,  H04L25/02

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 measures, at a first time point, a first set of reference signals to determine a first set of values corresponding to a set of CSI parameters. The UE determines value differences between the first set of values and a set of reference values corresponding to the set of CSI parameters. The UE sends a first CSI report including variation indicators indicating the value differences.

公开(公告)号：US20220360393A1

公开(公告)日：2022-11-10

申请号：US17719463

申请日：2022-04-13

Applicant: MEDIATEK INC.

Inventor： Lung-Sheng Tsai

IPC: H04L5/00

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 measures a first set of reference signals to determine a first channel state of a first channel between a first TRP and the UE. The UE measures interference received at the UE. The UE sends a first CSI report generated corresponding to the first channel state. The UE sends a second CSI report generated corresponding to the interference.

公开(公告)号：US20220060222A1

公开(公告)日：2022-02-24

申请号：US17394384

申请日：2021-08-04

Applicant: MediaTek Inc.

Inventor： Lung-Sheng Tsai ,  Jiann-Ching Guey

IPC: H04B7/0417 ,  H04W24/08 ,  H04B7/0456 ,  H04B7/06

Abstract: Examples pertaining to precoding-matched channel state information (CSI) feedback in mobile communications are described. An apparatus (e.g., UE) beamforms one or more of a plurality of ports used in reception of a channel state information reference signal (CSI-RS) with one or more precoders that are applied on one or more of the plurality of ports used in reception of a demodulation reference signal (DMRS) or a physical downlink shared channel (PDSCH). The apparatus generates a CSI feedback comprising at least a plurality of channel quality indication (CQIs) with respect to a plurality of hypothesized ranks. The apparatus then transmits the CSI feedback to a network.

公开(公告)号：US11201689B2

公开(公告)日：2021-12-14

申请号：US16446886

申请日：2019-06-20

Applicant: Mediatek Inc.

Inventor： Lung-Sheng Tsai ,  Teemu Tapio Virtanen

IPC: H04L1/00 ,  H04W76/11 ,  H04W72/04 ,  H04W24/10 ,  H04W76/27

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 a first trigger indicating at least one trigger state for reporting channel state information on a carrier or multiple carriers. The UE generates respective one or more channel state information reports associated with each of the at least one trigger state, each of the respective one or more channel state information reports being generated in accordance with a respective set of configurations that are unique with respect to sets of configurations used to generate the rest of the respective one or more channel state information reports. The UE sends the respective one or more channel state information reports associated with each of the at least one trigger state.

公开(公告)号：US11121814B2

公开(公告)日：2021-09-14

申请号：US16654201

申请日：2019-10-16

Applicant: Mediatek Inc.

Inventor： Lung-Sheng Tsai ,  Weidong Yang

IPC: H04L1/00 ,  H03M13/35 ,  H04B7/06 ,  H03M13/13 ,  H04L27/34 ,  H04L5/00 ,  H04B7/0417 ,  H04L1/18 ,  H04B7/0456

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 determines priority levels of a plurality of messages based on at least one predetermined rule. The plurality of messages contain channel state information to be reported to a base station. The at least one predetermined rule specifies that a message including an indicator indicating at least one of a beam selection at a particular dimension and an orthogonal beam group selection has a priority level higher than a priority level of a message including an indicator indicating at least one of a beam direction from a group of beam candidates or co-phasing between two sets of antennas for two polarizations. The UE sends, to the base station, one or more messages of the plurality of messages based on the priority levels of the plurality of messages.

公开(公告)号：US20210273743A1

公开(公告)日：2021-09-02

申请号：US17325480

申请日：2021-05-20

Applicant: Mediatek Inc.

Inventor： Teemu Tapio Virtanen ,  Weidong Yang ,  Karl Marko Juhani Lampinen ,  Lung-Sheng Tsai

IPC: H04L1/00 ,  H04W72/04 ,  H04W76/28 ,  H04W24/10 ,  H04L5/00

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 determines a first uplink slot on an uplink carrier for reporting channel state information. The UE determines, on a downlink carrier, a first downlink slot that is an earliest downlink slot overlaps with the first uplink slot. The UE determines a number M based on a numerology of the downlink carrier, M being an integer greater than or equal to 0. The UE measures a reference signal, received no later than a second downlink slot that is a latest valid downlink slot no later than M downlink slots prior to the first downlink slot, to generate the channel state information.

公开(公告)号：US10931354B2

公开(公告)日：2021-02-23

申请号：US16244571

申请日：2019-01-10

Applicant: Mediatek Inc.

Inventor： Lung-Sheng Tsai ,  Weidong Yang

IPC: H04B7/06 ,  H04B17/382 ,  H04W24/10 ,  H04W72/12

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, from a base station, a trigger for reporting M CSI reports, M being an integer greater than 0. The UE determines that P processing units are available for calculation of CSI reports, each of the P processing units indicating a predetermined amount of computing power of the UE. The UE selects N CSI reports from the M CSI reports in accordance with a predetermined rule, N being a maximum integer that allows total processing units assigned for calculation of the N CSI reports to be smaller than or equal to the P processing units. The UE updates the N CSI reports.

公开(公告)号：US10707939B2

公开(公告)日：2020-07-07

申请号：US16149339

申请日：2018-10-02

Applicant: MediaTek Inc.

Inventor： Weidong Yang ,  Tzu-Han Chou ,  Chao-Cheng Su ,  Lung-Sheng Tsai ,  Bo-Si Chen

IPC: H04B7/06 ,  H04W76/27 ,  H04L5/00 ,  H04W72/04 ,  H04B7/0456 ,  H04L25/03 ,  H04B7/0404

Abstract: Various solutions with respect to codebook-based uplink transmission in wireless communications are described. A user equipment (UE) stores information with respect to a plurality of permutations with respect to a mapping between a plurality of sounding reference signal (SRS) resources and a plurality of antenna ports at the UE. The UE receives signaling from a network node of a wireless network. The signaling contains an index identifying a permutation among the plurality of permutations. The UE performs an uplink transmission of data to the network node using one or more SRS resources of the plurality of SRS resources and one or more antenna ports of the plurality of antenna ports according to the identified permutation.

公开(公告)号：US20200153581A1

公开(公告)日：2020-05-14

申请号：US16683108

申请日：2019-11-13

Applicant: MEDIATEK INC.

Inventor： Lung-Sheng Tsai ,  Weidong Yang ,  Jiann-Ching Guey

IPC: H04L5/00 ,  H04W72/04 ,  H04L27/26

Abstract: In one novel aspect, multiple TRPs information are provided for REG bundle configuration with PDCCH transmission and reception with multiple transmission points (TRPs). The UE configures a PDCCH associated with a CORESET comprising multiple CCEs, partitions the CORESET into multiple CCE groups associated with corresponding TCI-state, which corresponds to a source TRP, configures multiple resource element group (REG) bundles each with multiple resource elements (REs), and assumes the same precoder applied on PDCCH DMRS when the REs are in the same REG bundle and are associated with the same source TRP, and wherein each source TRP transmits corresponding portion of DCI data mapping to the corresponding first and second CCE group. In one embodiment, the REG bundles are predefined with each comprises only REs associated with the same source TRP. In another embodiment, each CCE group corresponding to a source TRP is indicated for the REG bundle configurations.