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    Methods of discovery and measurements for small cells in OFDM/OFDMA systems
    12.
    发明授权
    Methods of discovery and measurements for small cells in OFDM/OFDMA systems 有权
    OFDM / OFDMA系统中小型小区的发现和测量方法

    公开(公告)号：US09559797B2

    公开(公告)日：2017-01-31

    申请号：US14496181

    申请日：2014-09-25

    Applicant: MEDIATEK INC.

    Inventor： Pei-Kai Liao ,  Hsiao-Lan Chiang ,  Chien-Chang Li ,  Xiangyang Zhuang

    IPC: H04J11/00 ,  H04L5/00 ,  H04L27/26 ,  H04W24/08 ,  H04W48/10 ,  H04W88/02 ,  H04W48/16

    CPC classification number: H04J11/005 ,  H04J11/0079 ,  H04J2011/0096 ,  H04L5/0007 ,  H04L5/005 ,  H04L5/0073 ,  H04L27/2613 ,  H04W24/08 ,  H04W48/10 ,  H04W48/16 ,  H04W88/02

    Abstract: A method of small cell discovery and RSRP/RSRQ measurements in OFDM/OFDMA systems is proposed. A discovery reference signal (DRS) with low transmission frequency is introduced to support small cell detection within a short time, multiple small cell discovery, and accurate measurement of multiple small cells. The DRS consists of one or multiple reference signal types with the functionalities including timing and frequency synchronization, cell detection, RSRP/RSSI/RSRQ measurements, and interference mitigation. RE muting is configured for the DRS to reduce interference level from data to DRS for discovery and RSRP/RSRQ measurements for small cells.

    Abstract translation: 提出了OFDM / OFDMA系统中小信元发现和RSRP / RSRQ测量的方法。 引入具有低传输频率的发现参考信号（DRS），以支持短时间内的小细胞检测，多个小细胞发现以及多个小细胞的精确测量。 DRS由一个或多个参考信号类型组成，其功能包括定时和频率同步，信元检测，RSRP / RSSI / RSRQ测量和干扰减轻。 为DRS配置RE静音，以减少数据到DRS的干扰等级，以便小型小区进行发现和RSRP / RSRQ测量。

    EFFICIENT WIDE BANDWIDTH OPERATION AND EFFICIENT UE-SPECIFIC RF BANDWIDTH ADAPTATION
    15.
    发明申请
    EFFICIENT WIDE BANDWIDTH OPERATION AND EFFICIENT UE-SPECIFIC RF BANDWIDTH ADAPTATION 有权

    公开(公告)号：US20220272705A1

    公开(公告)日：2022-08-25

    申请号：US17743320

    申请日：2022-05-12

    Applicant: MEDIATEK INC.

    Inventor： Pei-Kai Liao ,  Tao Chen ,  Chien-Chang Li

    IPC: H04W72/04 ,  H04W56/00 ,  H04W48/10 ,  H04W48/16

    Abstract: In one novel aspect, a plurality of synchronization signal (SS) anchors within a block of a contiguous spectrum is configured in a wireless network. Each SS anchor is a primary SS anchor or a secondary SS anchor. The UE performs an initial access by detecting a first primary SS anchor and receives one or more virtual carrier configurations with corresponding SS anchors within the block of the contiguous spectrum. In another novel aspect, the UE performs an initial access through a first RF band with a first bandwidth and a first center frequency, receives a switching signal to switch from the first RF band to a second RF band with a second bandwidth and a second center frequency, the second bandwidth is different from the first bandwidth, and performs a RF bandwidth adaptation from the first RF band to the second RF band based on the adaptation signal.

    Efficient wide bandwidth operation and efficient UE-specific RF bandwidth adaptation
    16.
    发明授权
    Efficient wide bandwidth operation and efficient UE-specific RF bandwidth adaptation 有权

    公开(公告)号：US11357007B2

    公开(公告)日：2022-06-07

    申请号：US16932952

    申请日：2020-07-20

    Applicant: MEDIATEK INC.

    Inventor： Pei-Kai Liao ,  Tao Chen ,  Chien-Chang Li

    IPC: H04W72/04 ,  H04W56/00 ,  H04W48/10 ,  H04W48/16 ,  H04W48/14

    Abstract: In one novel aspect, a plurality of synchronization signal (SS) anchors within a block of a contiguous spectrum is configured in a wireless network. Each SS anchor is a primary SS anchor or a secondary SS anchor. The UE performs an initial access by detecting a first primary SS anchor and receives one or more virtual carrier configurations with corresponding SS anchors within the block of the contiguous spectrum. In another novel aspect, the UE performs an initial access through a first RF band with a first bandwidth and a first center frequency, receives a switching signal to switch from the first RF band to a second RF band with a second bandwidth and a second center frequency, the second bandwidth is different from the first bandwidth, and performs a RF bandwidth adaptation from the first RF band to the second RF band based on the adaptation signal.

    Transmission preemption and its indication
    17.
    发明授权
    Transmission preemption and its indication 有权

    公开(公告)号：US10420080B2

    公开(公告)日：2019-09-17

    申请号：US15473628

    申请日：2017-03-30

    Applicant: MEDIATEK INC.

    Inventor： Weidong Yang ,  Yih-Shen Chen ,  Chien-Chang Li ,  Bo-Si Chen

    IPC: H04J3/00 ,  H04W72/04 ,  H04W52/14 ,  H04W72/10 ,  H04W72/08 ,  H04L5/00 ,  H04W84/04 ,  H04W52/16 ,  H04W52/28

    Abstract: Methods and apparatus are provided for transmission preemption and its indication. In one novel aspect, the UE receives a downlink resource assignment and determines whether an ultra-low latency (ULL) alert signal exists, wherein the ULL alert signal indicates a set of soft bits are overridden. The UE discards the set of soft bits from the overridden resources upon determining the ULL alert signal exists. In one embodiment, the ULL alert signal resides in the assignment subframe, and the overridden soft bits are in the assignment subframe. The alert timing for the ULL alert signal is preconfigured. In another embodiment, the ULL alert signal resides in a subframe that is right after the assignment subframe. The alert signal is enabled through an enabling of an enhanced mobile broadband and ULL service. The alter signal indicates a superset of the overridden soft bits or part of the overridden soft bits.

    RESOURCE SHARING BETWEEN PDCCH AND PDSCH
    18.
    发明申请
    RESOURCE SHARING BETWEEN PDCCH AND PDSCH 审中-公开

    公开(公告)号：US20180324688A1

    公开(公告)日：2018-11-08

    申请号：US15969982

    申请日：2018-05-03

    Applicant: Mediatek Inc.

    Inventor： Chien-Chang Li ,  Yiju Liao ,  Chien Hwa Hwang ,  Pei-Kai Liao

    IPC: H04W48/16 ,  H04W72/04 ,  H04W72/12

    CPC classification number: H04W48/16 ,  H04L5/0007 ,  H04W72/042 ,  H04W72/1205

    Abstract: In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may be a UE. In accordance with the method, the UE receives symbols in a time slot. The time slot includes a control region and a data region. The UE further determines a down link data channel specific to the UE carried by the received symbols in the data region. The down link data channel is provided on at least one range of frequencies. The UE further determines that one or more of the received symbols on the at least one range of frequencies and in the control region are a part of the down link data channel.

    METHOD OF EFFICIENT DOWNLINK CONTROL INFORMATION TRANSMISSION
    19.
    发明申请
    METHOD OF EFFICIENT DOWNLINK CONTROL INFORMATION TRANSMISSION 审中-公开

    公开(公告)号：US20180317207A1

    公开(公告)日：2018-11-01

    申请号：US15963366

    申请日：2018-04-26

    Applicant: Mediatek Inc.

    Inventor： Yiju Liao ,  Chien Hwa Hwang ,  Chien-Chang Li ,  Pei-Kai Liao

    IPC: H04W72/04 ,  H04L5/00

    Abstract: An UE receives a downlink control channel. The UE also receives an aggregation indication indicating that a downlink control channel contains downlink control information (DCI) for one or more resource locations of the UE. The UE further determines that a payload size selected from a list of payload sizes is a size of a payload of the downlink control channel. The UE further determines an entry size of each entry of a number of DCI entries that are included in the payload and are corresponding to the one or more resource locations based on downlink transmission parameters at the one or more resource locations. The UE also locates from the payload, based on the selected payload size and the entry sizes of the number of DCI entries, bits of each entry of the number of DCI entries.

    Method And Apparatus For Coordination Information Transmission In Mobile Communications
    20.
    发明申请
    Method And Apparatus For Coordination Information Transmission In Mobile Communications 审中-公开

    公开(公告)号：US20180184419A1

    公开(公告)日：2018-06-28

    申请号：US15852143

    申请日：2017-12-22

    Applicant: MediaTek Inc.

    Inventor： Weidong Yang ,  Bo-Si Chen ,  Chien-Chang Li

    IPC: H04W72/04 ,  H04W4/70

    Abstract: Various solutions for coordination information transmission with respect to user equipment (UE) and network apparatus in mobile communications are described. A UE may receive downlink control information comprising coordination information from a first node of a wireless network. The coordination information may comprise interference management information. The UE may copy the coordination information and embed the coordination information in uplink control information. The UE may further transmit the uplink control information to a second node of the wireless network.

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