公开(公告)号：US20190222287A1

公开(公告)日：2019-07-18

申请号：US16367661

申请日：2019-03-28

Applicant: MediaTek Inc.

Inventor： Weidong Yang ,  Lung-Sheng Tsai ,  Chien-Yi Wang ,  Chiao-Yao Chuang ,  Kuhn-Chang Lin

IPC: H04B7/06 ,  H04B7/0417 ,  H04L25/02 ,  H04B7/0452

CPC classification number: H04B7/0658 ,  H04B7/0417 ,  H04B7/0452 ,  H04B7/0626 ,  H04L25/0204 ,  H04L25/021 ,  H04L25/0226 ,  H04L25/0242

Abstract: Techniques and examples of overhead reduction for linear combination codebook and feedback mechanism in mobile communications are described. A user equipment (UE) receives from a base station of a network one or more reference signals via a communication link between the UE and the base station. The UE constructs a channel state information (CSI) feedback by utilizing a correlation of channel responses in a frequency domain to reduce feedback overhead. The UE then transmits the CSI feedback to the base station.

公开(公告)号：US20180323854A1

公开(公告)日：2018-11-08

申请号：US15969747

申请日：2018-05-02

Applicant: MediaTek Inc.

Inventor： Weidong Yang ,  Lung-Sheng Tsai ,  Chien-Yi Wang ,  Chiao-Yao Chuang ,  Kuhn-Chang Lin

IPC: H04B7/06 ,  H04B7/0452 ,  H04B7/0417 ,  H04L25/02

CPC classification number: H04B7/0658 ,  H04B7/0417 ,  H04B7/0452 ,  H04B7/0626 ,  H04L25/021 ,  H04L25/0242

Abstract: Techniques and examples of overhead reduction for linear combination codebook and feedback mechanism in mobile communications are described. A user equipment (UE) receives from a base station of a network one or more reference signals via a communication link between the UE and the base station. The UE constructs a channel state information (CSI) feedback by utilizing a correlation of channel responses in a frequency domain to reduce feedback overhead. The UE then transmits the CSI feedback to the base station.

公开(公告)号：US20250150507A1

公开(公告)日：2025-05-08

申请号：US18929876

申请日：2024-10-29

Applicant: MEDIATEK INC.

Inventor： Chien-Chun CHENG ,  Chiao-Yao Chuang ,  Wei-DE Wu ,  CHIOU-WEI TSAI ,  Tai-Cheng Tsai

IPC: H04L67/12 ,  H04L5/00 ,  H04W72/0446

Abstract: In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may be a reader. The reader broadcasts a radio signal indicating an available slot set. The reader transmits an acknowledge (ACK) signal including a decoded sequence to an ambient internet of things (A-IoT) device. The reader receives an identifier from the A-IoT device. The identifier is a reply of the A-IoT device when there is a match between the decoded sequence and a chosen sequence, and the chosen sequence is a random sequence that responds to the radio signal in a random slot chosen from the available slot set.

公开(公告)号：US20250142522A1

公开(公告)日：2025-05-01

申请号：US18919716

申请日：2024-10-18

Applicant: Mediatek Inc.

Inventor： Chien-Chun CHENG ,  Chiao-Yao Chuang ,  Wei-De Wu ,  Chiou-Wei Tsai ,  Tai-Cheng Tsai

IPC: H04W64/00 ,  H04B17/318 ,  H04L43/0864 ,  H04W24/10

Abstract: In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may be a reader. The reader receives a response signal set that responds to a radio signal, from an ambient internet of things (A-IoT) device set, a response signal in the response signal set being modulated by a corresponding A-IoT device in the A-IoT device set to include an identification of the corresponding A-IoT device. The reader identifies the corresponding A-IoT device based on the identification of the corresponding A-IoT device, and performs measurement for a positioning parameter. The reader executes a positioning related operation based on the identified A-IoT device and the measurement for the positioning parameter.

公开(公告)号：US20200337015A1

公开(公告)日：2020-10-22

申请号：US16854990

申请日：2020-04-22

Applicant: Mediatek Inc.

Inventor： Chiao-Yao Chuang

IPC: H04W64/00 ,  H04B7/06 ,  H04L5/00 ,  H04W72/04 ,  H04B17/318 ,  H04W80/08 ,  H04L27/26

Abstract: A UE receives a first configuration identifier for generating downlink PRSs or CSI-RSs. The first configuration identifier is an integer in a first range that includes a second range in which a scrambling identifier for generating a CSI-RS is. The UE receives modulation symbols on a set of resource elements allocated for carrying reference signals in an OFDM symbol in a slot in a radio frame. The UE generates a seed of a pseudo-random sequence for deriving the reference signals on the set of resource elements based on a wrapping result of a first output of a function using the first configuration identifier as a parameter and an offset. A second output of the function using a second configuration identifier as a parameter is the same as the first output. The second configuration identifier is in the second range and corresponding to the first configuration identifier.

公开(公告)号：US10298311B2

公开(公告)日：2019-05-21

申请号：US15969747

申请日：2018-05-02

Applicant: MediaTek Inc.

Inventor： Weidong Yang ,  Lung-Sheng Tsai ,  Chien-Yi Wang ,  Chiao-Yao Chuang ,  Kuhn-Chang Lin

IPC: H04B7/06 ,  H04B7/0452 ,  H04L25/02 ,  H04B7/0417

Abstract: Techniques and examples of overhead reduction for linear combination codebook and feedback mechanism in mobile communications are described. A user equipment (UE) receives from a base station of a network one or more reference signals via a communication link between the UE and the base station. The UE constructs a channel state information (CSI) feedback by utilizing a correlation of channel responses in a frequency domain to reduce feedback overhead. The UE then transmits the CSI feedback to the base station.

公开(公告)号：US20180323918A1

公开(公告)日：2018-11-08

申请号：US15969510

申请日：2018-05-02

Applicant: MediaTek Inc.

Inventor： Chiao-Yao Chuang ,  Song-Jheng Lin ,  Jianxuan Du ,  Yen-Hui Yeh

IPC: H04L5/00 ,  H04W72/04 ,  H04L25/02 ,  H04L27/26

CPC classification number: H04L5/005 ,  H04L25/0232 ,  H04L27/2657 ,  H04W72/042 ,  H04W72/044

Abstract: Techniques and examples of tracking reference signal and framework thereof in mobile communications are described. A user equipment (UE) receives, from a base station of a network, a reference signal via a communication link between the UE and the base station. The reference signal contains resource configuration with respect to tracking reference signal (TRS) configuration. The UE also receives, from the base station, a TRS burst containing a plurality of TRS symbols with one or more components of the UE configured according to the TRS configuration. The UE processes the TRS burst to perform channel estimation, synchronization, time tracking, frequency tracking, or a combination thereof.