公开(公告)号：US20230217425A1

公开(公告)日：2023-07-06

申请号：US18083559

申请日：2022-12-18

Applicant: MEDIATEK INC.

Inventor： Wei-Jen Chen ,  Yabo Li ,  Chong-You Lee ,  Jiaxian Pan ,  Wei-Hsuan Hsieh ,  Da-chun Hsing ,  Feng Chiu

IPC: H04W72/044 ,  H04W72/542 ,  H04L5/00

CPC classification number: H04W72/046 ,  H04W72/542 ,  H04L5/001

Abstract: A method of cross component carrier (Cross-CC) beam management is proposed. A transceiver uses multiple CCs' channel measurements to obtain a beam vector such that better performance can be achieved by utilizing wideband channel. The transceiver derives the beam vector by using the channel measurements of a set of selected CCs applied with a carrier weight factor. The transceiver utilizes beam management reference signal (BM-RS) of the set of selected CCs to derive the beam vector, e.g., an optimal beam. In one embodiment, the carrier weight factor can be the number of BM-RS REs of each CC. In another embodiment, the channel measurements can be SNR/RSRP, and the carrier weight factor can be the SNR/RSRP of each CC.

公开(公告)号：US20230216620A1

公开(公告)日：2023-07-06

申请号：US18091532

申请日：2022-12-30

Applicant: MEDIATEK INC.

Inventor： Tun-Ping Huang ,  Jiaxian Pan ,  Bao-Chi Peng ,  Fei Xu ,  Yaochao Liu ,  Wei-Jen Chen ,  Chong-You Lee ,  Yabo Li ,  Wei Yu Lai

IPC: H04L5/00 ,  H04W24/10 ,  H04W48/20

CPC classification number: H04L5/001 ,  H04L5/0051 ,  H04W24/10 ,  H04W48/20

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 configuration specifying an initial aggregated bandwidth W0 carried on C0 component carriers on which a reception unit (RXU) of the UE is to receive signals. The UE determines a total bandwidth WTOT on which the UE is capable of receiving signals. The UE determines, based on WTOT and W0, an initial hardware limit of Q0′ RXUs that the UE is allowed to activate concurrently. The UE determines an adjusted aggregated bandwidth W1 carried on C1 component carriers on which an RXU of the UE is to receive signals based on a channel condition between the UE and the base station.

公开(公告)号：US11329691B2

公开(公告)日：2022-05-10

申请号：US16910535

申请日：2020-06-24

Applicant: MediaTek Inc.

Inventor： Guo-Hau Gau ,  Ho-Chi Huang ,  Wei-Jen Chen ,  Chiou-Wei Tsai ,  Ju-Ya Chen ,  Mau-Lin Wu

IPC: H04B1/69 ,  H04W72/04 ,  H04L5/00

Abstract: Various novel concepts and schemes pertaining to non-orthogonal multiple access for wireless communications are described. A group orthogonal coded access (GOCA) scheme is introduced to reduce multi-user interference (MUI) and improve performance. A repetition division multiple access (RDMA) scheme is introduced to differentiate user equipment (UEs) by different repetition patterns. A low-density spreading (LDS) scheme is introduced to reduce MUI and improve performance.

公开(公告)号：US10790853B2

公开(公告)日：2020-09-29

申请号：US16199216

申请日：2018-11-25

Applicant: MediaTek Inc.

Inventor： Mao-Ching Chiu ,  Chong-You Lee ,  Cheng-Yi Hsu ,  Timothy Perrin Fisher-Jeffes ,  Yen-Shuo Chang ,  Wei-Jen Chen ,  Ju-Ya Chen

IPC: H03M13/11 ,  H03M13/00 ,  H04L1/18 ,  H04L1/00 ,  H03M13/03

Abstract: Concepts and schemes pertaining to quasi-cyclic-low-density parity-check (QC-LDPC) coding are described. A processor of an apparatus may generate a QC-LDPC code having a plurality of codebooks embedded therein. The processor may select a codebook from the plurality of codebooks. The processor may also encode data using the selected codebook. Alternatively or additionally, the processor may generate the QC-LDPC code including at least one quasi-row orthogonal layer. Alternatively or additionally, the processor may generate the QC-LDPC code including a base matrix a portion of which forming a kernel matrix that corresponds to a code rate of at least a threshold value.

公开(公告)号：US10462742B2

公开(公告)日：2019-10-29

申请号：US15719833

申请日：2017-09-29

Applicant: MediaTek Inc.

Inventor： Xiu-Sheng Li ,  Wanchi Lee ,  Wei-Jen Chen

IPC: H04W52/02 ,  H04B7/26 ,  H04W72/04 ,  H04L27/26 ,  H04W72/12 ,  H04L5/00

Abstract: Various solutions for power consumption reduction with respect to user equipment (UE) in mobile communications are described. A UE may receive first control information in a first transmission time interval (TTI). The UE may determine whether to turn on a radio frequency transceiver of the UE in a second TTI according to the first control information. The first control information indicates whether downlink data for the apparatus is scheduled in the second TTI. The UE may further monitor first control information in a first radio carrier. The UE may determine whether to turn on a radio frequency transceiver of the UE to receive downlink information in a second radio carrier according to the first control information. The first control information indicates whether downlink information for the apparatus is scheduled in the second radio carrier.

公开(公告)号：US20180331784A1

公开(公告)日：2018-11-15

申请号：US15995093

申请日：2018-05-31

Applicant: MediaTek Inc.

Inventor： Mao-Ching Chiu ,  Chong-You Lee ,  Timothy Perrin Fisher-Jeffes ,  Cheng-Yi Hsu ,  Yen-Shuo Chang ,  Wei-Jen Chen ,  Ju-Ya Chen

IPC: H04L1/00 ,  H03M13/11 ,  H04B7/0456

CPC classification number: H04L1/0058 ,  H03M13/1137 ,  H03M13/114 ,  H03M13/116 ,  H03M13/1188 ,  H03M13/6306 ,  H03M13/6393 ,  H03M13/6516 ,  H04B7/0456 ,  H04L1/0041 ,  H04L1/0057 ,  H04L1/0068

Abstract: A processor of an apparatus selects a codebook from a plurality of codebooks embedded in a quasi-cyclic-low-density parity-check (QC-LDPC) code. The processor stores the selected codebook in a memory associated with the processor. The processor also encodes data using the selected codebook to generate a plurality of modulation symbols of the data. The processor further controls a transmitter of the apparatus to multiplex, convert, filter, amplify and radiate the modulation symbols as electromagnetic waves through one or more antennas of the apparatus. In selecting the codebook from the plurality of codebooks embedded in the QC-LDPC code, the processor selects the codebook according to one or more rules such that a small codebook requiring a shorter amount of processing latency for the encoding is selected for the encoding unless a larger codebook corresponding to a larger amount of processing latency for the encoding is necessary for the encoding.

公开(公告)号：US10004053B2

公开(公告)日：2018-06-19

申请号：US15441327

申请日：2017-02-24

Applicant: MEDIATEK INC.

Inventor： Wei-Jen Chen ,  Jianxuan Du ,  Yen-Hui Yeh ,  Wei-Nan Sun

IPC: H04W56/00 ,  H04W52/02 ,  H04W72/04

CPC classification number: H04W56/004 ,  H04W52/0212 ,  H04W52/0216 ,  H04W52/0229 ,  H04W56/001 ,  H04W72/042 ,  Y02D70/00 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/164 ,  Y02D70/24

Abstract: A mobile communication device with a Radio Frequency (RF) unit and a processing unit is provided. The RF unit transmits and receives wireless signals to and from a service network. The processing unit configures the RF unit to communicate with the service network in a DRX operation, and uses a Physical Broadcast Channel (PBCH) for synchronizing with the service network during the DRX operation.

公开(公告)号：US20180092033A1

公开(公告)日：2018-03-29

申请号：US15719833

申请日：2017-09-29

Applicant: MediaTek Inc.

Inventor： Xiu-Sheng Li ,  Wanchi Lee ,  Wei-Jen Chen

IPC: H04W52/02 ,  H04W72/04 ,  H04B7/26

Abstract: Various solutions for power consumption reduction with respect to user equipment (UE) in mobile communications are described. A UE may receive first control information in a first transmission time interval (TTI). The UE may determine whether to turn on a radio frequency transceiver of the UE in a second TTI according to the first control information. The first control information indicates whether downlink data for the apparatus is scheduled in the second TTI. The UE may further monitor first control information in a first radio carrier. The UE may determine whether to turn on a radio frequency transceiver of the UE to receive downlink information in a second radio carrier according to the first control information. The first control information indicates whether downlink information for the apparatus is scheduled in the second radio carrier.

公开(公告)号：US20180048348A1

公开(公告)日：2018-02-15

申请号：US15674498

申请日：2017-08-10

Applicant: MediaTek Inc.

Inventor： Guo-Hau Gau ,  Ho-Chi Huang ,  Wei-Jen Chen ,  Chiou-Wei Tsai ,  Ju-Ya Chen ,  Mau-Lin Wu

IPC: H04B1/69 ,  H04L5/00 ,  H04W72/04

Abstract: Various novel concepts and schemes pertaining to non-orthogonal multiple access for wireless communications are described. A group orthogonal coded access (GOCA) scheme is introduced to reduce multi-user interference (MUI) and improve performance. A repetition division multiple access (RDMA) scheme is introduced to differentiate user equipment (UEs) by different repetition patterns. A low-density spreading (LDS) scheme is introduced to reduce MUI and improve performance.

公开(公告)号：US20230156506A1

公开(公告)日：2023-05-18

申请号：US17970515

申请日：2022-10-20

Applicant: MEDIATEK INC.

Inventor： Wei-Jen Chen ,  Chun-Fan Tsai ,  Jiaxian Pan ,  Wei-Jen Chen

IPC: H04W24/10

CPC classification number: H04W24/10

Abstract: A method for handling a measurement configuration including: determining a measurement configuration, wherein the measurement configuration includes a measurement object and a plurality of reporting configurations; performing at least one first measurement for the measurement object, to generate at least one first measurement result; and transmitting the at least one first measurement result to a network device according to a reporting configuration of the plurality of reporting configurations in response to the reporting configuration being satisfied; wherein the plurality of reporting configurations correspond to the measurement object.