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    Device and Method to Improve Horizontal and Vertical Positioning Accuracy
    1.
    发明申请
    Device and Method to Improve Horizontal and Vertical Positioning Accuracy 有权

    公开(公告)号：US20240422720A1

    公开(公告)日：2024-12-19

    申请号：US18815696

    申请日：2024-08-26

    Applicant: Apple Inc.

    Inventor： Seunghee Han ,  Shafi Bashar ,  Yuan Zhu ,  Yang Tang

    IPC: H04W64/00 ,  G01S1/20 ,  G01S3/48 ,  G01S5/00 ,  G01S5/02 ,  G01S5/10 ,  G01S5/12 ,  H04J11/00 ,  H04W56/00

    Abstract: User equipment (UE), an enhanced NodeB (eNB) and method of improving positioning accuracy and enabling vertical domain positioning of the UE are generally described. The UE may receive a prsInfo control signal having at least one PRS configuration and subsequently a plurality of Reference Signals (RSs). The RSs may have a first Positioning Reference Signal (PRS) pattern in a first set of PRS subframes and a second PRS pattern in a second set of PRS subframes received prior to a subsequent first set of PRS subframes. The RSs may have a vertical positioning RS and a lateral positioning RS. The UE may measure PRS resource elements (REs), each having a PRS, in the first and second PRS pattern. The UE may transmit a measurement of the PRS in the first and second PRS pattern. The patterns may enable horizontal and vertical positioning to be determined.

    Latency reduction techniques for radio access networks
    9.
    发明授权
    Latency reduction techniques for radio access networks 有权

    公开(公告)号：US11528719B2

    公开(公告)日：2022-12-13

    申请号：US15571500

    申请日：2015-12-22

    Applicant: APPLE INC.

    Inventor： Christian Ibars Casas ,  Seunghee Han

    IPC: H04W72/12 ,  H04L1/00 ,  H04L1/18 ,  H04W72/04 ,  H04W84/04

    Abstract: Latency reduction techniques for radio access networks are described. In various embodiments, a reduced transmission time interval (rTTI) may be implemented in order to reduce air interface latency in a radio access network. In some embodiments, an rTTI block may be defined, and some operations may be performed in rTTI block-wise fashion in order to reduce the marginal overhead associated with implementation of the rTTI. In various embodiments in which an rTTI is implemented, DM-RS granularity may be improved by use of techniques that enable data and reference signals to be multiplexed within a same OFDM symbol. In some embodiments, a current transmission time interval (TTI) may be maintained, and latency reduction may be achieved via the use of novel techniques for one or more of code block (CB) segmentation, uplink (UL) resource element (RE) mapping and HARQ cycle timing. Other embodiments are described and claimed.

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