公开(公告)号：US20240267806A1

公开(公告)日：2024-08-08

申请号：US18637776

申请日：2024-04-17

Applicant: MEDIATEK INC.

Inventor： Li-Chuan TSENG ,  Yuanyuan ZHANG ,  Yung-Hsiang LIU ,  Chun-Fan TSAI ,  Chia-Chun HSU

IPC: H04W36/00 ,  H04W36/36

CPC classification number: H04W36/00837 ,  H04W36/0058 ,  H04W36/0061 ,  H04W36/0085 ,  H04W36/36

Abstract: Methods and apparatus are provided for UE-triggered handover and early preparation with coexistence of the network-triggered handover. In one novel aspect, the UE is configured early measurement report configuration, receives an early handover command from the serving base station with a handover candidate cell list, monitors handover triggering conditions for each candidate cell on the handover candidate cell list based on a UE-triggered handover configuration and performs the UE-triggered handover to a candidate cell when the corresponding triggering condition is met for the candidate cell. In one embodiment, the UE receives a network-triggered handover command to a target cell, suspends the UE-triggered handover configuration and performs the network-triggered handover to the target cell. The UE discards the UE-triggered handover configuration upon success of the network-triggered handover and resumes the UE-triggered handover configuration upon failure of the network-triggered handover.

公开(公告)号：US20210051757A1

公开(公告)日：2021-02-18

申请号：US16908427

申请日：2020-06-22

Applicant: MEDIATEK INC.

Inventor： Li-Chuan TSENG ,  Chia-Chun HSU

IPC: H04W76/27 ,  H04W76/30 ,  H04W8/08

Abstract: A User Equipment (UE) including a wireless transceiver and a controller is provided. The wireless transceiver performs wireless transmission and reception to and from a service network. The controller transmits a Radio Resource Control (RRC) message including assistance information to indicate the UE's preference of transition out of an RRC_CONNECTED state to the service network via the wireless transceiver, and receives an RRC Release message from the service network via the wireless transceiver in response to transmitting the RRC message including the assistance information to indicate the UE's preference of transition out of the RRC_CONNECTED state. Also, the controller configures the UE to enter an RRC_IDLE state or an RRC_INACTIVE state from the RRC_CONNECTED state in response to receiving the RRC Release message.

公开(公告)号：US20190053264A1

公开(公告)日：2019-02-14

申请号：US16054047

申请日：2018-08-03

Applicant: MEDIATEK INC.

Inventor： Guan-Yu LIN ,  Xiu-Sheng LI ,  Chia-Chun HSU

IPC: H04W72/12 ,  H04W48/02

Abstract: A User Equipment (UE) including a wireless transceiver and a controller is provided. The wireless transceiver performs wireless transmission and reception to and from a serving cell. The controller performs a first Scheduling Request (SR) procedure and a second SR procedure with the serving cell via the wireless transceiver, and maintains a first set of SR parameters for the first SR procedure and a second set of SR parameters for the second SR procedure, in response to performing the first SR procedure and the second SR procedure.

公开(公告)号：US20170142708A1

公开(公告)日：2017-05-18

申请号：US14904850

申请日：2015-08-07

Applicant: MEDIATEK INC.

Inventor： Sheng-Yi HO ,  Shen-Chieh TUNG ,  Chia-Chun HSU

IPC: H04W72/04 ,  H04W72/14 ,  H04W74/08 ,  H04W76/04

CPC classification number: H04W72/0446 ,  H04W56/0045 ,  H04W72/0413 ,  H04W72/042 ,  H04W72/14 ,  H04W74/0833 ,  H04W76/27

Abstract: A user equipment and a timing advance value updating method thereof are provided. The UE determines that a scheduling request transmission counter reaches a maximum number of SR transmission and determines whether a time alignment timer is still running after the scheduling request transmission counter reaches the maximum number of SR transmission. If the time alignment timer is still running, the UE drops the time alignment timer.