公开(公告)号：US20240089884A1

公开(公告)日：2024-03-14

申请号：US18263595

申请日：2022-01-28

Applicant: MEDIATEK INC.

Inventor： Chiao-Yao CHUANG

IPC: H04W56/00

CPC classification number: H04W56/0045

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 measures, at a baseband, a UE RX-TX time difference at-baseband. The UE compensates the UE RX-TX time difference at-baseband to estimate a UE RX-TX time difference at-antenna. The UE sends, to a network, the UE RX-TX time difference at-antenna with an indication that reference points are at antennas and an indication of a TX chain, or a timing delay error level of the TX chain, intended to be used by the UE during the measuring or the compensating.

公开(公告)号：US20230319770A1

公开(公告)日：2023-10-05

申请号：US18176901

申请日：2023-03-01

Applicant: MEDIATEK INC.

Inventor： Nathan Edward TENNY ,  Chiao-Yao CHUANG

IPC: H04W64/00 ,  H04W8/22

CPC classification number: H04W64/00 ,  H04W8/22

Abstract: In a sidelink positioning method, a target UE and/or one or more peer UEs may transmit and/or measure reference signals on a sidelink interface. The target UE may determine its own transmission configuration for such reference signals, potentially taking into account the measurement capabilities of one or more peer UEs. The target UE may request a transmission configuration for such reference signals from one or more peer UEs. The peer UEs may determine their own transmission configuration(s) for the reference signals, potentially taking into account any request received from the target UE and/or the measurement capabilities of the target UE. The capability information, reference signal configuration information, and measurement results may be exchanged among the UEs. Related positioning protocols may be carried over transport layers of the sidelink interface.

公开(公告)号：US20240414680A1

公开(公告)日：2024-12-12

申请号：US18262790

申请日：2022-01-26

Applicant: MEDIATEK INC.

Inventor： Chiao-Yao CHUANG

IPC: H04W64/00 ,  H04L5/00 ,  H04W56/00

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 receives, from a serving base station of the UE, an SRS configuration. The UE transmits a first SRS and a second SRS in accordance with the SRS configuration. The UE sends, to a network, (a) an indication of a respective TX RF chain of the UE associated with each of the first SRS and the second SRS or (b) an indication of a timing delay error level of the respective TX RF chain associated with each of the first SRS and the second SRS.

公开(公告)号：US20230388085A1

公开(公告)日：2023-11-30

申请号：US18248911

申请日：2021-10-14

Applicant: MEDIATEK INC.

Inventor： Guan-Yu LIN ,  Chiao-Yao CHUANG

IPC: H04L5/00 ,  H04W64/00

CPC classification number: H04L5/0057 ,  H04W64/003 ,  H04L5/0048

Abstract: A method of latency reduction for positioning-specific measurement reporting is provided. A User Equipment (UE) performs first measurements on Positioning Reference Signals (PRSs) to obtain first measurement results in response to receiving a location information request from a mobile communication network. The UE uses a first configured grant to transmit a first measurement report including the first measurement results to the mobile communication network. The UE performs second measurements on PRSs to obtain second measurement results in response to the same location information request. The UE uses the first configured grant to transmit a second measurement report including the second measurement results to the mobile communication network, without triggering a Scheduling Request (SR) procedure or a Buffer Status Report (BSR) procedure.

公开(公告)号：US20230262645A1

公开(公告)日：2023-08-17

申请号：US18005484

申请日：2021-07-20

Applicant: MEDIATEK INC.

Inventor： Chiao-Yao CHUANG ,  Nathan Edward TENNY ,  Ming-Chun CHIANG

IPC: H04W64/00

CPC classification number: H04W64/00

Abstract: In an aspect of the disclosure, a serving base station receives, from a UE, a measurement of a DL-RSTD with respect to a first TRP and a second TRP. The serving base station sends the DL-RSTD to a location management function, wherein the location management function further receives a first RTOA of an SRS arriving at the first TRP and a second RTOA of the SRS arriving at the second TRP. The serving base station receives, from the location management function, a relative time difference calculated based on the DL-RSTD, the first RTOA, and the second RTOA. The relative time difference indicates a synchronization error between the first TRP and the second TRP.

公开(公告)号：US20220271899A1

公开(公告)日：2022-08-25

申请号：US17761260

申请日：2020-09-30

Applicant: MEDIATEK INC.

Inventor： Chi-Hsuan HSIEH ,  Chiao-Yao CHUANG ,  Din-Hwa HUANG

IPC: H04L5/00 ,  H04W72/12

Abstract: A method, a computer-readable medium, and an apparatus are provided. The apparatus may be a UE. The UE receives, on a primary cell, an activation command from a base station for activating a secondary cell between the UE and the base station. The UE receives scheduling information of a set of aperiodic TRSs. The UE receives a trigger indicating transmission of the set of aperiodic TRSs. The UE initiates a RF chain of the UE configured for the secondary cell in an interruption period. The UE receives, in response to receiving the trigger and in accordance with the scheduling information, the set of aperiodic TRSs on the secondary cell prior to receiving an initial SSB or an initial periodic TRS after the interruption period. The UE performs time and frequency tracking on the secondary cell based on the set of aperiodic TRSs.