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    System and Method for Beamed Reference Signal With Hybrid Beam
    1.
    发明申请
    System and Method for Beamed Reference Signal With Hybrid Beam 有权

    公开(公告)号：US20210006320A1

    公开(公告)日：2021-01-07

    申请号：US17025094

    申请日：2020-09-18

    Applicant: Apple Inc.

    Inventor： Wenting CHANG ,  Gang XIONG ,  Yuan ZHU ,  Huaning NIU ,  Yushu ZHANG

    IPC: H04B7/06 ,  H04W16/28 ,  H04L5/00 ,  H04W74/08

    Abstract: Described is an apparatus of an Evolved Node-B (eNB). The apparatus may comprise a first circuitry, a second circuitry, and a third circuitry. The first circuitry may be operable to associate a first Beam Reference Signal (BRS) for a first Transmit (Tx) beam having a first beamwidth with one or more second BRSes for one or more respectively corresponding second Tx beams having a second beamwidth. The second circuitry may be operable to generate a first BRS transmission carrying the first BRS, and to generate one or more second BRS transmissions carrying the one or more respectively corresponding second BRSes. The third circuitry may be operable to provide information regarding the first BRS and the second BRSes to the second circuitry.

    Design of CSI Measurement and Feedback for EMTC-U System
    3.
    发明申请
    Design of CSI Measurement and Feedback for EMTC-U System 有权

    公开(公告)号：US20230023399A1

    公开(公告)日：2023-01-26

    申请号：US17947390

    申请日：2022-09-19

    Applicant: Apple Inc.

    Inventor： Salvatore TALARICO ,  Huaning NIU ,  Wenting CHANG

    IPC: H04B7/06 ,  H04B1/713 ,  H04L5/00 ,  H04W24/10 ,  H04L27/00 ,  H04W16/14

    Abstract: Techniques described herein can facilitate Channel-State Information (CSI) measurement and feedback for communication in unlicensed spectrum or Sounding Reference Signal (SRS) transmission and/or channel-state estimation for communication in unlicensed spectrum. In an example, an apparatus is configured to be employed in a User Equipment (UE), and the apparatus comprises a Radio Frequency (RF) circuitry interface and processing circuitry configured to perform CSI measurement for communication in unlicensed spectrum. The apparatus further generates data for feedback according to the CSI measurement, and sends the data for feedback to RF circuitry via the RF circuitry interface. In an example, a frame structure of a data channel begins with a downlink (DL) transmission or soon after an initial signal. In an example, the CSI measurement includes measuring Channel Quality Information (CQI) for one or more sub-bands.

    NARROWBAND REFERENCE SIGNAL TRANSMISSION FOR MEASUREMENT AND SYNCHRONIZATION
    6.
    发明申请
    NARROWBAND REFERENCE SIGNAL TRANSMISSION FOR MEASUREMENT AND SYNCHRONIZATION 有权

    公开(公告)号：US20210306834A1

    公开(公告)日：2021-09-30

    申请号：US17264685

    申请日：2019-07-31

    Applicant: Apple Inc.

    Inventor： Wenting CHANG ,  Huaning NIU ,  Salvatore TALARICO ,  Qiaoyang YE ,  Rongrong SUN

    IPC: H04W4/80 ,  H04L5/00 ,  H04L27/26 ,  H04W72/04

    Abstract: Embodiments of the present disclosure provide for narrowband reference signals transmission. A base station is configured to: generate downlink transmissions for unlicensed Internet of things (U-IoT) communication, the downlink transmissions to include an anchor segment on a first plurality of subframes and a data segment on a second plurality of subframes, wherein the anchor segment includes a narrowband reference signal (NRS) configured to be transmitted at a first transmit power by the base station, to facilitate time or frequency tracking and cause transmission of the downlink frame for the U-IoT communication. And a user equipment is configured to receive the NRSs transmitted by the base station and process transmissions based on reception of the NRSs.

    FRAME STRUCTURE FOR UNLICENSED NARROWBAND INTERNET-OF-THINGS SYSTEM
    7.
    发明申请
    FRAME STRUCTURE FOR UNLICENSED NARROWBAND INTERNET-OF-THINGS SYSTEM 审中-公开

    公开(公告)号：US20200220673A1

    公开(公告)日：2020-07-09

    申请号：US16638028

    申请日：2018-08-10

    Applicant: APPLE INC.

    Inventor： Wenting CHANG ,  Huaning NIU ,  Qiaoyang YE ,  Salvatore TALARICO

    IPC: H04L5/00 ,  H04L5/14 ,  H04W4/70 ,  H04W16/14

    Abstract: The disclosure describes frame structure with downlink/uplink subframe configuration and channel hopping scheme for unlicensed narrowband Internet-of-Things (IoT) systems. An apparatus operable for unlicensed narrowband transmission to support IoT service is disclosed. The apparatus includes baseband circuitry to select a transmission channel within an unlicensed narrow band for downlink transmission of a discovery reference signal (DRS), and for channel hopping, to select, according to the DRS, a communication channel within the unlicensed narrow band for downlink data and uplink data. The DRS includes a primary synchronization signal (PSS), a secondary synchronization signal (SSS) and physical broadcast channel (PBCH) content. The baseband circuitry is further to demodulate a received signal received via radio frequency (RF) circuitry through the communication channel over an uplink frame, and to modulate a transmitting signal to be transmitted via the RF circuitry through the communication channel over a downlink frame.

    BEAMED REFERENCE SIGNAL WITH HYBRID BEAM
    8.
    发明申请
    BEAMED REFERENCE SIGNAL WITH HYBRID BEAM 有权

    公开(公告)号：US20230036278A1

    公开(公告)日：2023-02-02

    申请号：US17950530

    申请日：2022-09-22

    Applicant: Apple Inc.

    Inventor： Wenting CHANG ,  Gang XIONG ,  Yuan ZHU ,  Huaning NIU ,  Yushu ZHANG

    IPC: H04B7/06 ,  H04W16/28 ,  H04L5/00 ,  H04W74/08

    Abstract: Described is an apparatus of an Evolved Node-B (eNB). The apparatus may comprise a first circuitry, a second circuitry, and a third circuitry. The first circuitry may be operable to associate a first Beam Reference Signal (BRS) for a first Transmit (Tx) beam having a first beamwidth with one or more second BRSes for one or more respectively corresponding second Tx beams having a second beamwidth. The second circuitry may be operable to generate a first BRS transmission carrying the first BRS, and to generate one or more second BRS transmissions carrying the one or more respectively corresponding second BRSes. The third circuitry may be operable to provide information regarding the first BRS and the second BRSes to the second circuitry.

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