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    Physical downlink control channel design for NR systems
    54.
    发明授权
    Physical downlink control channel design for NR systems 有权

    公开(公告)号：US11622284B2

    公开(公告)日：2023-04-04

    申请号：US16926864

    申请日：2020-07-13

    Applicant: MEDIATEK INC.

    Inventor： Chien-Hwa Hwang ,  Chien-Chang Li ,  Yi-Ju Liao ,  Pei-Kai Liao ,  Weidong Yang

    IPC: H04L5/00 ,  H04W16/28 ,  H04W72/044 ,  H04L1/1829 ,  H04W72/04 ,  H04W74/08 ,  H04B7/06

    Abstract: A new design for physical downlink control channel (PDCCH) is proposed for the next generation 5G new radio systems. A UE receives the configuration of a default control resource set (CORESET) in MIB/SIB from its serving base station. The default CORESET contains both common search space and UE-specific search space for candidate PDCCH transmission. A PDCCH in a default CORESET is mapped to physical resource in a distributed or localized manner. Specifically, various REG-to-CCE mapping rules are proposed to improve frequency diversity gain, or frequency selectivity gain, or to reduce latency of PDCCH processing. Further, to facilitate analog beamforming in mmWave systems, the default CORESET is transmitted in a synchronization signal (SS) block associated with a corresponding analog beam direction.

    METHOD AND USER EQUIPMENT FOR PDCCH PAGING EARLY INDICATION DETECTION
    55.
    发明申请
    METHOD AND USER EQUIPMENT FOR PDCCH PAGING EARLY INDICATION DETECTION 有权

    公开(公告)号：US20230050894A1

    公开(公告)日：2023-02-16

    申请号：US17860744

    申请日：2022-07-08

    Applicant: MEDIATEK INC.

    Inventor： Wei-De Wu ,  Yi-Ju Liao ,  Pei-Kai Liao

    IPC: H04W52/02 ,  H04W68/00 ,  H04L1/00

    Abstract: Method and UE are provided for scheduling for PDCCH PEI detection. In particular, a BS can transmit a higher layer signaling to a UE. The higher layer signaling includes a configuration of at least one configurable PDCCH candidate number for PEI procedure used under a non-active mode. After receiving the higher layer signaling, the UE performs blind decoding under the non-active mode according to the configuration of the at least one configurable PDCCH candidate number.

    BLIND DETECTION AND CCE ALLOCATION FOR CARRIER AGGREGATION
    58.
    发明申请
    BLIND DETECTION AND CCE ALLOCATION FOR CARRIER AGGREGATION 有权

    公开(公告)号：US20220217683A1

    公开(公告)日：2022-07-07

    申请号：US17702902

    申请日：2022-03-24

    Applicant: Mediatek Inc.

    Inventor： Lung-Sheng Tsai ,  Chien-Hwa Hwang ,  Yi-Ju Liao

    IPC: H04W72/02 ,  H04W72/12

    Abstract: A UE determines N1 component carriers on each of which the UE is configured to detect a respective one PDCCH in a slot. The UE determines N2 component carriers on each of which the UE is configured to detect respective at least two PDCCHs in the slot. The UE determines a total Q blind detections of PDCCH that the UE is capable of performing. The UE determines a first predetermined scaling factor X. The UE allocates M1 blind detections of the Q blind detections to be available on each of the N1 component carriers and M2 blind detections of the Q blind detections to be available on each of the N2 component carriers such that (N1*M1+N2*M2) is a largest integer no greater than Q. M2 equals to X*M1. The UE performs blind detections in accordance with the allocations.

    Wake-up signal operation for UE power saving
    59.
    发明授权
    Wake-up signal operation for UE power saving 有权

    公开(公告)号：US11297574B2

    公开(公告)日：2022-04-05

    申请号：US16861372

    申请日：2020-04-29

    Applicant: Mediatek Inc.

    Inventor： Yi-Ju Liao ,  Wei-De Wu

    IPC: H04W52/02 ,  H04W76/28 ,  H04L1/00 ,  H04W72/04 ,  H04W76/27 ,  H04W72/12

    Abstract: A UE receives one or more modulation symbols on one or more resource elements prior to an ON duration in a particular DRX cycle in RRC connected mode. The one or more resource elements are allocated to carry a wake-up signal. The UE performs a blind detection of the wake-up signal on the one or more modulation symbols in accordance with a DCI format and a group identifier identifying a group of UEs including the UE. The wake-up signal includes an indication that indicates whether one or more UEs of the group of UEs should monitor a down link control channel in the ON duration. The UE determines whether to operate in a normal state and monitor a down link control channel in the ON duration based on the wake-up signal when the wake-up signal is detected.

    Methods of two-stage scheduling in downlink control channel
    60.
    发明授权
    Methods of two-stage scheduling in downlink control channel 有权

    公开(公告)号：US10484986B2

    公开(公告)日：2019-11-19

    申请号：US16247570

    申请日：2019-01-15

    Applicant: MEDIATEK INC.

    Inventor： Pei-Kai Liao ,  Yi-Ju Liao

    IPC: H04W4/00 ,  H04W72/04 ,  H04L1/00 ,  H04W72/12 ,  H04L5/00

    Abstract: A method of two-stage scheduling in downlink control channel is proposed to enhance downlink control information (DCI) forward compatibility and hardware flexibility. The DCI comprises a basic DCI and an extended DCI. The basic DCI provides basic scheduling information of the scheduled data. The extended DCI provides extended scheduling information of the scheduled data channel. The basic DCI can be unicast to a single UE over UE-specific search space. The basic DCI can also be broadcast or multicast to a group of UEs over common search space. UE performs blind detection of the basic DCI only, while the location and size of the extended DCI can be provided by the basic DCI or provided by a higher layer signaling. Cross-slot/subframe and Multi-slot/subframe scheduling can also be applied in the two-stage scheduling.

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