Prioritized messaging and resource selection in vehicle-to-vehicle (V2V) sidelink communication

    公开(公告)号:US11553503B2

    公开(公告)日:2023-01-10

    申请号:US16488552

    申请日:2018-03-21

    Applicant: Apple Inc.

    Abstract: Embodiments of a Generation Node-B (gNB), User Equipment (UE) and methods for communication are generally described herein. The gNB may allocate a resource pool of physical resource blocks (PRBs) and sub-frames for vehicle-to-vehicle (V2V) sidelink transmissions. The gNB may receive, from a UE, an uplink control message that indicates that the UE requests a V2V sidelink transmission of a prioritized message. The gNB may select, for the V2V sidelink transmission of the prioritized message, one or more PRBs and one or more sub-frames. The gNB may transmit, to the UE and to other UEs, a downlink control message that indicates: the selected PRBs, the selected sub-frames, and that the other UEs are to mute sidelink transmissions in the selected PRBs in the selected sub-frames to enable the V2V sidelink transmission of the prioritized message.

    V2X performance enhancements in high speed environments

    公开(公告)号:US11418286B2

    公开(公告)日:2022-08-16

    申请号:US16812256

    申请日:2020-03-06

    Applicant: Apple Inc.

    Abstract: Implementations of this disclosure generally may relate to the field of wireless communications. More specifically, implementations described in this disclosure relate to different 3GPP LTE and LTE-A system enhancements to address the issue and support reliable V2X operation in the high mobility environments. Several solutions to improve the V2X system performance in the high mobility vehicular channel propagation conditions are described. Some aspects relate to the suggestion of a new DMRS patterns within individual subframes that promote more accurate CFO estimation. Moreover, another aspect provides DMRS mapping or puncturing patterns to transmit individual DMRS in a periodic pattern on respective OFDM/SC-FDMA symbols so that they do not occupy all REs of the OFDM/SC-FDMA symbols, respectively.

    QOS-AWARE CONGESTION CONTROL, RESOURCE ALLOCATION AND IN-DEVICE COEXISTENCE SOLUTIONS FOR NR V2X SIDELINK COMMUNICATIONS

    公开(公告)号:US20210385685A1

    公开(公告)日:2021-12-09

    申请号:US17286556

    申请日:2019-10-31

    Applicant: Apple Inc.

    Abstract: A user equipment (UE), gNodeB or network component can be configured to support Quality of Service (QoS) aware sidelink communications for vehicle to everything (V2X) communication operations. The QoS aware sidelink communications can include operating QoS congestion control, QoS control and adaptation, QoS aware resource allocation, QoS aware in-device coexistence operations, as well as sensing and reservation based on sidelink resource allocations. Transmitter constraints can be provided according to a Quality of Service (QoS) aware congestion control that enables a fair usage of spectrum resources with one or more V2X devices, based on QoS attributes. Different V2X packets can be scheduled/filtered based on combinations of the QoS attributes. A priority of one radio access technology (RAT) over another can be made based on the QoS attributes associated with the different V2X packets being delivered in sidelink transmissions for a QoS aware in-device coexistence operation.

    Uplink non-orthogonal multiple access transmission scheme

    公开(公告)号:US11171744B2

    公开(公告)日:2021-11-09

    申请号:US16264243

    申请日:2019-01-31

    Applicant: Apple Inc.

    Abstract: Embodiments of the present disclosure describe methods, apparatuses, storage media, and systems for uplink non-orthogonal multiple access transmission schemes employed by transmit circuitry. A transmitter circuitry in a User Equipment (UE) may include an encoder circuitry to generate an encoded sequence, a first scrambling circuitry to perform first-part scrambling on the encoded sequence to generate a first scrambled sequence, and a second scrambling circuitry to perform second-part scrambling on a spread modulated symbols to generate a second scrambled sequence. Other embodiments may be described and claimed.

    V2X Performance Enhancements in High Speed Environments

    公开(公告)号:US20200304237A1

    公开(公告)日:2020-09-24

    申请号:US16812256

    申请日:2020-03-06

    Applicant: Apple Inc.

    Abstract: Implementations of this disclosure generally may relate to the field of wireless communications. More specifically, implementations described in this disclosure relate to different 3GPP LTE and LTE-A system enhancements to address the issue and support reliable V2X operation in the high mobility environments. Several solutions to improve the V2X system performance in the high mobility vehicular channel propagation conditions are described. Some aspects relate to the suggestion of a new DMRS patterns within individual subframes that promote more accurate CFO estimation. Moreover, another aspect provides DMRS mapping or puncturing patterns to transmit individual DMRS in a periodic pattern on respective OFDM/SC-FDMA symbols so that they do not occupy all REs of the OFDM/SC-FDMA symbols, respectively.

    Two-step RACH for new radio (NR) with unlicensed operation

    公开(公告)号:US12063690B2

    公开(公告)日:2024-08-13

    申请号:US17439886

    申请日:2020-03-26

    Applicant: Apple Inc.

    CPC classification number: H04W74/0833 H04W16/14

    Abstract: Systems and methods are described for a 2-Step Random Access Channel (RACH) for New Radio (NR) with unlicensed operation. The systems and methods include at least, generating, by a user equipment (UE), a MsgA of a random access channel (RACH) procedure associated with the NR network, the MsgA having a physical random access channel (PRACH) occasion and an associated physical uplink shared channel (PUSCH) occasion for transmission during the RACH procedure, and transmitting, by the UE, the MsgA to a base station (gNB) over unlicensed spectrum of the NR network during the RACH procedure.

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