公开(公告)号：US20220116839A1

公开(公告)日：2022-04-14

申请号：US17417549

申请日：2019-09-30

Applicant: MEDIATEK INC.

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

IPC: H04W36/00 ,  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：US20200314868A1

公开(公告)日：2020-10-01

申请号：US16828107

申请日：2020-03-24

Applicant: MEDIATEK INC.

Inventor： Li-Chuan TSENG ,  Chi-Hsuan Hsieh ,  Din-Hwa Huang

IPC: H04W72/08 ,  H04W24/10 ,  H04W8/08 ,  H04B17/318 ,  H04W64/00

Abstract: Aspects of the disclosure provide an electronic device including processing circuitry and a method for radio resource management (RRM) measurements. The processing circuitry determines, based on a signal received in a serving cell for the electronic device, a location and mobility of the electronic device. The electronic device is in one of a first state and a second state for RRM measurements. A normal level of RRM measurements is implemented for one or more neighboring cells when the electronic device is in the first state, and a relaxed level of RRM measurements is implemented for the one or more neighboring cells when the electronic device is in the second state. The processing circuitry determines whether the electronic device is to be switched from the one of the first state and the second state to another of the first state and the second state based on the mobility and the location.

公开(公告)号：US20180279151A1

公开(公告)日：2018-09-27

申请号：US15926327

申请日：2018-03-20

Applicant: MEDIATEK INC.

Inventor： Li-Chuan TSENG ,  Chia-Chun HSU ,  Yuanyuan ZHANG ,  Per Johan Mikael JOHANSSON

IPC: H04W24/10 ,  H04W36/30 ,  H04W36/00 ,  H04W24/08 ,  H04W24/02

CPC classification number: H04W24/10 ,  H04W24/02 ,  H04W24/08 ,  H04W36/0058 ,  H04W36/0083 ,  H04W36/0094 ,  H04W36/30 ,  H04W48/16 ,  H04W48/20 ,  H04W88/08

Abstract: Aspects of the disclosure provide a mobile terminal including a processing circuit. The processing circuit is configured to obtain a serving cell measurement result of measuring a first set of signal beams from a serving base station, determine a cell-level signal quality parameter based on the serving cell measurement result, and determine whether the cell-level signal quality parameter meets a poor cell-level signal quality condition. The processing circuit is further configured to, in response to a determination that the cell-level signal quality parameter meets the poor cell-level signal quality condition, obtain a neighboring cell measurement result of measuring a second set of signal beams from a neighboring base station, determine whether a measurement event occurs based on the serving cell measurement result and the neighboring cell measurement result, and send a measurement report to the serving base station in response to a determination that the measurement event occurs.

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：US20240040452A1

公开(公告)日：2024-02-01

申请号：US18357216

申请日：2023-07-24

Applicant: MEDIATEK INC.

Inventor： Chun-Fan TSAI ,  Li-Chuan TSENG ,  Yi-Ru CHEN

IPC: H04W36/00

CPC classification number: H04W36/00837 ,  H04W36/0072 ,  H04W36/0069

Abstract: Aspects of the disclosure provide a method to activate secondary cell group (SCG) selectively. For example, the method can include receiving a radio resource control (RRC) reconfiguration message including first and second radio resource configurations of first and second primary secondary cells (PSCells) and conditional PSCell addition (CPA) and conditional PSCell change (CPC) triggering conditions, setting a current triggering condition to be the CPA triggering condition, evaluating the current triggering condition and determining that the first PSCell satisfies the current triggering condition, and performing a CPA step to add the first PSCell as a current SCG, updating the current triggering condition to be the CPC triggering condition, the UE still keeping the first and second radio resource configurations and the CPA and CPC triggering conditions for subsequent CPC step, without releasing the second radio resource configuration and the CPA and CPC triggering conditions associated with the second PSCell.

公开(公告)号：US20190215711A1

公开(公告)日：2019-07-11

申请号：US16242249

申请日：2019-01-08

Applicant: MEDIATEK INC.

Inventor： Chun-Fan TSAI ,  Li-Chuan TSENG ,  Tsang-Wei YU ,  Yuanyuan ZHANG

IPC: H04W24/10 ,  H04W56/00 ,  H04W76/27 ,  H04W72/04 ,  H04B17/309 ,  H04W36/00

CPC classification number: H04W24/10 ,  H04B17/309 ,  H04W36/00835 ,  H04W56/0045 ,  H04W72/0446 ,  H04W76/27

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 first service network and a second service network. The controller receives a Radio Resource Control (RRC) message comprising a measurement configuration for SFN (System Frame Number) and Frame Timing Difference (SFTD) from the first service network via the wireless transceiver, performs first SFTD measurements between a Primary Cell (PCell) of the first service network and neighbor cells of the second service network via the wireless transceiver in response to the measurement configuration for SFTD indicating the neighbor cells, and sends a result of the first SFTD measurements to the first service network via the wireless transceiver.