公开(公告)号：US10917212B2

公开(公告)日：2021-02-09

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：US20200344616A1

公开(公告)日：2020-10-29

申请号：US16926864

申请日：2020-07-13

Applicant: MEDIATEK INC.

Inventor： Chien-Hwa Hwang ,  Chien-Chang Li ,  Yi-Ju Liao ,  Pei-Kai Liao ,  Weidong Yang

IPC: H04W16/28 ,  H04W72/04 ,  H04L5/00 ,  H04L1/18 ,  H04W74/08

Abstract: A new design for physical downlink control channel (PDCCH) is proposed for the next generation 5G new radio systems. A UE receives the configuration of a default control resource set (CORESET) in MIB/SIB from its serving base station. The default CORESET contains both common search space and UE-specific search space for candidate PDCCH transmission. A PDCCH in a default CORESET is mapped to physical resource in a distributed or localized manner. Specifically, various REG-to-CCE mapping rules are proposed to improve frequency diversity gain, or frequency selectivity gain, or to reduce latency of PDCCH processing. Further, to facilitate analog beamforming in mmWave systems, the default CORESET is transmitted in a synchronization signal (SS) block associated with a corresponding analog beam direction.

公开(公告)号：US10779325B2

公开(公告)日：2020-09-15

申请号：US16054198

申请日：2018-08-03

Applicant: MediaTek Inc.

Inventor： Weidong Yang

IPC: H04W4/00 ,  H04W74/08 ,  H04B7/06 ,  H04B17/318 ,  H04W52/50 ,  H04B7/0456 ,  H04W52/24 ,  H04L5/00

Abstract: Various examples and schemes pertaining to channel access in mobile communications are described. A processor of a second apparatus receives a probing signal from a first apparatus. The processor performs measurement of the probing signal. The processor generates a power-controlled clear-to-send (CTS) signal with respect to the measurement. The processor then transmits the power-controlled CTS signal to the first apparatus.

公开(公告)号：US20200228299A1

公开(公告)日：2020-07-16

申请号：US16738120

申请日：2020-01-09

Applicant: Mediatek Inc.

Inventor： Tzu-Han Chou ,  Weidong Yang ,  Chao-Cheng Su ,  Jiann-Ching Guey

IPC: H04L5/10 ,  H04L5/00 ,  H04L27/26 ,  H04L27/34

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 an indication for transmitting a particular DMRS sequence in an uplink transmission. The particular DMRS sequence is time domain based. The UE determines an adjustment to a base DMRS sequence for generating the particular DMRS sequence. The UE generates the particular DMRS sequence based on the adjustment and the base DMRS sequence. The UE modulates the particular DMRS sequence to obtain a set of symbols. The UE maps a plurality of symbols of the set of symbols to a plurality of subcarriers. The UE transmits the plurality of symbols on the plurality of subcarriers.

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：US20190394733A1

公开(公告)日：2019-12-26

申请号：US16445592

申请日：2019-06-19

Applicant: Mediatek Inc.

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

IPC: H04W52/42 ,  H04W52/14 ,  H04B1/04 ,  H04B7/0404 ,  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 reports, to a base station, a transmit capability of the UE. The UE receives, from the base station, a first signaling indicating a subset of codewords in a codebook and a second signaling selecting one of the codewords in the subset for precoding an uplink channel for transmission through a plurality of antenna ports over one or more spatial layers.

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.