公开(公告)号：US10523290B2

公开(公告)日：2019-12-31

申请号：US16129774

申请日：2018-09-12

Applicant: MediaTek Inc.

Inventor： Weidong Yang ,  Lung-Sheng Tsai ,  Bo-Si Chen

IPC: H04B7/0456 ,  H04B7/0404 ,  H04B7/04

Abstract: Various solutions with respect to codebook-based uplink transmission in wireless communications are described. A user equipment (UE) constructs a precoder to be used to wirelessly communicate with a network node of a wireless network. The UE then performs an uplink (UL) transmission to the network node using the precoder via one or more of a plurality of antennas of the UE.

公开(公告)号：US10440697B2

公开(公告)日：2019-10-08

申请号：US15852143

申请日：2017-12-22

Applicant: MediaTek Inc.

Inventor： Weidong Yang ,  Bo-Si Chen ,  Chien-Chang Li

IPC: H04W72/04 ,  H04W4/70 ,  H04L5/00

Abstract: Various solutions for coordination information transmission with respect to user equipment (UE) and network apparatus in mobile communications are described. A UE may receive downlink control information comprising coordination information from a first node of a wireless network. The coordination information may comprise interference management information. The UE may copy the coordination information and embed the coordination information in uplink control information. The UE may further transmit the uplink control information to a second node of the wireless network.

公开(公告)号：US20190289665A1

公开(公告)日：2019-09-19

申请号：US16353491

申请日：2019-03-14

Applicant: MediaTek Inc.

Inventor： Weidong Yang ,  Chia-Chun Hsu ,  Yih-Shen Chen ,  Pavan Santhana Krishna Nuggehalli ,  Lung-Sheng Tsai ,  Yuanyuan Zhang

IPC: H04W80/02 ,  H04W72/04

Abstract: A first network node receives downlink signaling from a second network node in a first occasion, received on a first carrier in a first time slot, and a second occasion, which is received either on the first carrier in a second time slot after the first time slot or on a second carrier in the first time slot or the second time slot. A MAC control element (CE) in the downlink signaling received in the first and second occasions contain a first timing padding value and a second timing padding value, respectively. A predetermined time slot is equally indicated by the first time slot plus the first timing padding value as well as by the second time slot plus the second timing padding value. The first network node effects one or more configurations in the predetermined time slot responsive to receiving the downlink signaling in the first and second occasions.

公开(公告)号：US20190260435A1

公开(公告)日：2019-08-22

申请号：US16275322

申请日：2019-02-14

Applicant: MediaTek Inc.

Inventor： Weidong Yang

IPC: H04B7/0456 ,  H04W72/12 ,  H04B7/0452

Abstract: Various examples with respect to uplink (UL) transmission schemes for frequency selective precoding in UL transmissions in mobile communications are described. A processor of a user equipment (UE) receives a control signal from a network node of a wireless network which is in wireless communication with a plurality of UEs. The control signal may allocate one or more subbands to the UE. The processor defines one or more physical resource blocks (PRBs) corresponding to the one or more subbands based on a common reference point used by the plurality of UEs. The processor then performs frequency selective precoding on the one or more PRBs.

公开(公告)号：US20190159215A1

公开(公告)日：2019-05-23

申请号：US16190148

申请日：2018-11-14

Applicant: MediaTek Inc.

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

IPC: H04W72/08 ,  H04L5/00

Abstract: Various examples pertaining to multi-transmit/receive point (TRP) interference control in wireless communications are described. A processor of a user equipment (UE) receives, from a network node, a downlink measurement reference signal and configures an interference measurement resource (IMR) associated with a sounding reference signal (SRS) resource of the UE based on the DL measurement reference signal. The processor measures a channel response of a communication channel between the UE and the network node. The processor also measures an interference using the IMR. The processor then generates a precoder based on the measured channel response and the measured interference. The processor further performs an uplink transmission to the network node using the precoder.

公开(公告)号：US20190081667A1

公开(公告)日：2019-03-14

申请号：US16129772

申请日：2018-09-12

Applicant: MediaTek Inc.

Inventor： Weidong Yang ,  Lung-Sheng Tsai ,  Bo-Si Chen

IPC: H04B7/0456

Abstract: Various solutions with respect to codebook-based uplink transmission in wireless communications are described. A user equipment (UE) receives a signal indicating codebook subset restriction (CBSR) from a network node of a wireless network. The UE selects one or more codewords or a codebook from a master codebook based on the CBSR. The master codebook includes codewords from multiple components. The UE then performs a physical uplink shared channel (PUSCH) transmission to the network node using the one or more codewords or the codebook.

公开(公告)号：US20190052406A1

公开(公告)日：2019-02-14

申请号：US16101394

申请日：2018-08-11

Applicant: MediaTek Inc.

Inventor： Weidong Yang ,  Lung-Sheng Tsai

IPC: H04L1/08 ,  H04L1/18

Abstract: Various solutions for blind retransmission for ultra-reliable and low-latency communications (URLLC) with respect to user equipment and network apparatus in mobile communications are described. An apparatus may receive a physical downlink control channel (PDCCH). The apparatus may receive a plurality of physical downlink shared channels (PDSCHs) according to the PDCCH. The apparatus may decode the plurality of PDSCHs according to the PDCCH. The PDCCH may schedule the plurality of PDSCHs.

公开(公告)号：US20180323916A1

公开(公告)日：2018-11-08

申请号：US15970881

申请日：2018-05-04

Applicant: MediaTek Inc.

Inventor： Weidong Yang ,  Bo-Si Chen

IPC: H04L1/24 ,  H04L5/00

CPC classification number: H04L1/248 ,  H04L5/0048 ,  H04L5/0053 ,  H04W24/10 ,  H04W52/0203

Abstract: Various solutions for cross-link interference measurements with respect to user equipment and network apparatus in mobile communications are described. A node of a wireless network may receive a cross-link interference (CLI) measurement configuration. The node may determine a measurement slot according to the CLI measurement configuration. The node may determine whether to perform a CLI measurement in the measurement slot according to the CLI measurement configuration. The node may receive a CLI reference signal (RS) in the measurement slot. The node may perform the CLI measurement in the measurement slot.

公开(公告)号：US20180302192A1

公开(公告)日：2018-10-18

申请号：US15952661

申请日：2018-04-13

Applicant: Steven Yen-Hsien Liu ,  MediaTek Inc.

Inventor： Weidong Yang ,  Lung-Sheng Tsai ,  Tzu-Han Chou ,  Yu-Chuan Lin ,  Bo-Si Chen

IPC: H04L1/18 ,  H04B7/04 ,  H04B7/06

Abstract: Techniques and examples of layer mapping, channel state information (CSI) feedback and hybrid automatic repeat request (HARQ) feedback in mobile communications are described. A user equipment (UE) receives from a base station one or more reference signals, which may be non-zero power (NZP) or zero power (ZP), on one or more time-frequency resources indicated by a network via a communication link between the UE and the base station. The UE estimates, based on the receiving, a subspace spanned by a channel response of an interfering signal. The UE determines a precoding matrix indicator (PMI) based on the estimated subspace. The UE transmits to the base station a channel state information (CSI) feedback comprising at least the PMI. The PMI may include at least a first precoder and a second precoder.

公开(公告)号：US20180279273A1

公开(公告)日：2018-09-27

申请号：US15933591

申请日：2018-03-23

Applicant: MediaTek Inc.

Inventor： Weidong Yang ,  Lung-Sheng Tsai ,  Chien-Hwa Hwang

IPC: H04W72/04

CPC classification number: H04W72/042 ,  H04B7/022 ,  H04B7/0613 ,  H04W72/0446

Abstract: Various solutions for downlink control signal design with respect to user equipment and network apparatus in mobile communications are described. An apparatus may receive a first downlink control signal from a first source. The apparatus may receive a second downlink control signal from a second source. The apparatus may further receive downlink data according to the first downlink control signal and the second downlink control signal. The first downlink control signal and the second downlink control signal may be identical. The first source and the second source may be different.