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：US20210211953A1

公开(公告)日：2021-07-08

申请号：US16953927

申请日：2020-11-20

Applicant: MEDIATEK INC.

Inventor： Chun-Fan TSAI

IPC: H04W36/00

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 base station. The controller is coupled to the wireless transceiver, and configured to receive an RRC reconfiguration message from the first base station via the wireless transceiver, and in response to the UE being configured to provide measurement gap requirement information of NR target bands, send an RRC reconfiguration complete message including the measurement gap requirement information to the first base station via the wireless transceiver.

公开(公告)号：US20190342820A1

公开(公告)日：2019-11-07

申请号：US16401381

申请日：2019-05-02

Applicant: MEDIATEK INC.

Inventor： Yih-Shen CHEN ,  Chun-Fan TSAI ,  Tsang-Wei YU

IPC: 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 cell. The controller receives first barring information and second barring information from the cell via the wireless transceiver, and ignores the first barring information in response to the UE supporting network-based Cell-specific Reference Signal (CRS) interference mitigation. Also, the controller allows the UE to access the cell in response to the UE supporting network-based CRS interference mitigation and the second barring information indicating that the cell is not barred.

公开(公告)号：US20190104562A1

公开(公告)日：2019-04-04

申请号：US16140781

申请日：2018-09-25

Applicant: MEDIATEK INC.

Inventor： Chun-Fan TSAI ,  Yuanyuan ZHANG ,  Pavan Santhana Krishna NUGGEHALLI

IPC: H04W76/18 ,  H04W28/06 ,  H04W76/27 ,  H04W76/19

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 primary cell (Pcell) and a secondary cell (Scell) of a service network. The controller activates duplication of Packet Data Convergence Protocol (PDCP) Packet Data Units (PDUs) for Carrier Aggregation (CA) using a plurality of Radio Link Control (RLC) entities. In response to detecting that an RLC failure of one of the RLC entities, which is not associated with the Pcell, has occurred, the controller sends a Radio Resource Control (RRC) message for reporting the RLC failure to the service network via the wireless transceiver.

公开(公告)号：US20170086102A1

公开(公告)日：2017-03-23

申请号：US14862612

申请日：2015-09-23

Applicant: MediaTek Inc.

Inventor： Chun-Fan TSAI

IPC: H04W36/00 ,  H04W76/02 ,  H04W48/16

CPC classification number: H04W36/0022 ,  H04W48/16 ,  H04W76/18

Abstract: A mobile communication device including a Baseband processor is provided. The Baseband processor is configured to determine whether the mobile communication device is operating in an idle mode or a connected mode with a first service network in response to starting a Circuit Switch Fallback (CSFB) call, search for a cell of a second service network on a frequency, on which the mobile communication device has previously made another CSFB call successfully from the first service network, when the mobile communication device is operating in the idle mode with the serving cell, and make the CSFB call on the cell.