公开(公告)号：US20230113144A1

公开(公告)日：2023-04-13

申请号：US17945169

申请日：2022-09-15

Applicant: Mediatek Inc.

Inventor： Lung-Sheng Tsai

IPC: H04W72/02 ,  H04W72/04 ,  H04L5/00

Abstract: A method, a computer-readable medium, and an apparatus are provided. The apparatus may be a UE. The UE transmits first RF signals at Nt1 antennas on first time-frequency resources. The first RF signals carries a first set of reference signals of L1 antenna ports. Nt1 and L1 are positive integers. L1 are not greater than Nt1. The UE transmits second RF signals at Nt2 antennas on second time-frequency resources. The second RF signals carries a second set of reference signals of L2 antenna ports. Nt2 and L2 are positive integers. L2 are not greater than Nt2. The UE transmits, at the Nt1 antennas and the Nt2 antennas, third RF signals on the first time-frequency resources and fourth RF signals on the second time-frequency resources. The third RF signals and the fourth RF signals carries L layers of data. L are not greater than a sum of L1 and L2.

公开(公告)号：US20220060233A1

公开(公告)日：2022-02-24

申请号：US17391252

申请日：2021-08-02

Applicant: MediaTek Inc.

Inventor： Lung-Sheng Tsai ,  Jiann-Ching Guey ,  Tzu-Han Chou

IPC: H04B7/06 ,  H04L5/00 ,  H04L27/26

Abstract: Examples pertaining to reference signal sharing in mobile communications are described. An apparatus (e.g., UE) receives a plurality of reference signals comprising a first set of reference signals and a second set of reference signals. The apparatus performs time or frequency tracking based on the plurality of reference signals. Alternatively, the apparatus generates a channel state information (CSI) report associated with the plurality of reference signals and transmits the CSI report to a network.

公开(公告)号：US11201711B2

公开(公告)日：2021-12-14

申请号：US16683089

申请日：2019-11-13

Applicant: MEDIATEK INC.

Inventor： Lung-Sheng Tsai ,  Weidong Yang ,  Cheng-Rung Tsai ,  Jiann-Ching Guey ,  Chia-Hao Yu

IPC: H04L5/00 ,  H04L27/26 ,  H04W72/04 ,  H04B17/336 ,  H04B7/06 ,  H04W24/10

Abstract: In one novel aspect, configurations for PDCCH transmission and reception with multiple transmission points are provided. The UE configures a PDCCH associated with a CORSET comprising multiple CCEs, partitions the CORSET into multiple TCI-state sets, wherein each TCI state set includes multiple CCE groups associated with corresponding TCI-state, which corresponds to a source TRP, activates one TCI state set, and receives DCI via the PDCCH, wherein the PDCCH is transmitted from at least the first source TRP and the second source TRP, and wherein each source TRP transmits corresponding portion of DCI data mapping to the corresponding first and second CCE group. The CORSET is partitioned in FDM or TDM way. In another novel aspect, a first and a second PDCCH associated with a first and a second TRP are configured for repetition transmission. The second PDCCH configuration is dependent upon the first PDCCH configuration.

公开(公告)号：US20210091839A1

公开(公告)日：2021-03-25

申请号：US17114851

申请日：2020-12-08

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 determines that the UE possesses T processing units for calculation of channel state information (CSI) reports. The UE transmits, to a base station, an indication indicating the T processing units. The UE receives, from the base station, a trigger for updating or providing M CSI reports. The UE determines that P processing units of the T processing units are available for calculation of CSI reports. The UE updates or provides N CSI reports. N is an integer smaller than or equal to M and allows processing units assigned for calculation of the N CSI reports to be smaller than or equal to the P processing units.

公开(公告)号：US10716127B2

公开(公告)日：2020-07-14

申请号：US16136220

申请日：2018-09-19

Applicant: MediaTek Inc.

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

IPC: H04W72/12 ,  H04L1/00 ,  H04W56/00 ,  H04W72/04 ,  H04W76/27 ,  H04W72/14 ,  H04L1/18 ,  H04W24/10 ,  H04B7/06

Abstract: Various solutions with respect to uplink control information (UCI) feedback timing signaling in wireless communications are described. A user equipment (UE) identifies a type of uplink (UL) transmission to perform with respect to a network node of a wireless network. The UE receives a control signal from the network node and determines, based on the control signal, a timing offset of a transmission schedule for the identified type of the UL transmission. The UE performs the UL transmission to the network node according to the transmission schedule such that a first type of the UL transmission is performed with a first timing offset and a second type of the UL transmission is performed with a second timing offset different than the first timing offset.

公开(公告)号：US10700758B2

公开(公告)日：2020-06-30

申请号：US16191628

申请日：2018-11-15

Applicant: Mediatek Inc.

Inventor： Lung-Sheng Tsai ,  Xiu-Sheng Li ,  Ming-Po Chang ,  Weidong Yang

IPC: H04B7/06 ,  H04W76/27 ,  H04W72/04 ,  H04B17/318 ,  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 that up-link control information for channel state information (CSI) acquisition and up-link control information for beam management is to be transmitted on a same up-link channel. The UE includes the up-link control information for beam management in at least one CSI-acquisition report for reporting the up-link control information for CSI acquisition. The UE sends the at least one CSI-acquisition report to the base station on the up-link channel.

公开(公告)号：US10601563B2

公开(公告)日：2020-03-24

申请号：US16143837

申请日：2018-09-27

Applicant: Mediatek Inc.

Inventor： Weidong Yang ,  Lung-Sheng Tsai

IPC: H04L5/00 ,  H04W72/04 ,  H04W24/10 ,  H04B7/06

Abstract: A method of wireless communication of a UE is provided. The UE determines a reference size of a payload available in a physical uplink channel for carrying R channel state information (CSI) reports, R being an integer greater than 0, each of the R CSI reports including a first part containing CSI of a wideband and a second part containing CSI of one or more subbands of the wideband. The UE carries all first parts of the R CSI reports in the payload. The UE further carries second parts of (M−1) CSI reports of the R CSI reports in the payload. The UE carries a portion of a second part of an Mth CSI report of the R CSI reports in the payload.

公开(公告)号：US10594374B2

公开(公告)日：2020-03-17

申请号：US16136215

申请日：2018-09-19

Applicant: MediaTek Inc.

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

IPC: H04B7/02 ,  H04B7/0456 ,  H04B7/0404 ,  H04B7/06 ,  H04L5/00 ,  H04L25/02

Abstract: Various solutions with respect to codebook-based uplink transmission in wireless communications are described. A user equipment (UE) generates a codebook comprising a plurality of precoders. The UE processes information using the codebook and transmits the processed information to a network node of a wireless network. In generating the codebook, the UE selects a candidate precoder from a single-stage codebook or a dual-stage codebook and performs a permutation on the candidate precoder.

公开(公告)号：US10469204B2

公开(公告)日：2019-11-05

申请号：US15865457

申请日：2018-01-09

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 a plurality of messages containing channel state information to be reported to a base station. The UE also determines a priority level for each of the plurality of messages based on at least one predetermined rule. The UE further selects one or more messages from the plurality of messages based on priority levels of the plurality of messages. The UE then sends the selected one or more messages to the base station.

公开(公告)号：US20190280751A1

公开(公告)日：2019-09-12

申请号：US16295905

申请日：2019-03-07

Applicant: MediaTek Inc.

Inventor： Lung-Sheng Tsai ,  Chiao-Yao Chuang

IPC: H04B7/06 ,  H04L25/02 ,  H04L5/00 ,  H04B7/0456

Abstract: Various examples with respect to frequency-selective precoding for uplink (UL) transmissions in mobile communications are described. A processor of a user equipment (UE) receives signaling from a network node of a wireless network. The processor then performs a codebook-based UL transmission to the network node with frequency-selective precoding in a subband of a plurality of subbands according to the signaling received from the network. For non-codebook-based UL transmissions, the processor performs a non-codebook-based UL transmission of a beamformed sounding reference signal (SRS) to the network node by determining a precoder and performing frequency-selective precoding on the SRS using the precoder with a size of precoder bundling for the frequency-selective precoding in a frequency domain known by the network node.