DESIGN OF NR SIDELINK SYNCHRONIZATION SIGNAL FOR ENHANCED VEHICLE-TO-EVERYTHING USE CASES WITH OPTIMIZED RECEIVER PROCESSING

    公开(公告)号:US20220140967A1

    公开(公告)日:2022-05-05

    申请号:US17427424

    申请日:2020-02-12

    Applicant: Apple Inc.

    Abstract: Systems, apparatuses, methods, and computer-readable media are provided for a user equipment (UE) for a wireless communication system. The UE determines at least one sidelink primary synchronization signal (S-PSS) sequence of at least one S-PSS signal. The at least one S-PSS sequence is different from a primary synchronization signal (PSS) sequence. The EE also determines at least one sidelink secondary synchronization signal (S-SSS) sequence of at least one S-SSS signal. The EE determines a plurality of S-PSS symbols and a plurality of S-SSS symbols corresponding to a sub carrier spacing (SCS). The EE transmits to another EE the determined plurality of S-SSS symbols after the determined plurality of S-PSS symbols. The SCS may be associated with a physical resource block (PRB) allocation size. A maximum of 11 PRBs for a sidelink synchronization signal block (S-SSB) may be set based on the SCS.

    IN-DEVICE COORDINATION OF SIDELINK OVER LTE AND NR PC5 INTERFACES

    公开(公告)号:US20210274452A1

    公开(公告)日:2021-09-02

    申请号:US17258994

    申请日:2019-08-08

    Applicant: Apple Inc.

    Abstract: Embodiments of a User Equipment (UE), Next Generation Node-B (gNB), Evolved Node-B (eNB) and methods of communication are generally described herein. The UE may determine, based on one or more detected synchronization signals, a reference timing to be used for a common synchronization of Long Term Evolution (LTE) sidelink communication on an LTE PC5 interface and New Radio (NR) sidelink communication on an NR PC5 interface in accordance with time division multiplexing (TDM) operation, wherein subframe boundaries of the LTE PC5 interface and the NR PC5 interface are aligned in time. If the UE detects, during a time period, an in-device conflict between a service configured for the LTE PC5 interface and a service configured for the NR PC5 interface, the UE may determine which of the services to support during the time period based on corresponding priorities.

    METHOD AND SYSTEM FOR DL PRS TRANSMISSION FOR ACCURATE RAT-DEPENDENT NR POSITIONING

    公开(公告)号:US20210076359A1

    公开(公告)日:2021-03-11

    申请号:US16865220

    申请日:2020-05-01

    Applicant: Apple Inc.

    Abstract: A method and apparatus of a device that performs a new radio (NR) downlink (DL) positioning reference signal (PRS) resource scheduling is described. In an exemplary embodiment, the device configures at least one of a NR DL PRS Resource Pool, a NR DL PRS Resource Set, a NR DL PRS Resource, and a muting pattern. In addition, the configured NR DL PRS Resource Set may be assigned to a separate Transmission Reception Point (TRP). Furthermore, a list of configured NR DL PRS Resource Sets can be assigned to a separate TRP. The assigned NR DL PRS Resource Set may include PRS Resources with different spatial filters. In addition, the assigned NR DL PRS Resource Set can include PRS Resources with the same spatial filter.

    SIDELINK PHYSICAL LAYER PROCEDURES FOR COLLISION AVOIDANCE, HARQ FEEDBACK, AND CSI ACQUISITION

    公开(公告)号:US20220109546A1

    公开(公告)日:2022-04-07

    申请号:US17422107

    申请日:2020-01-13

    Applicant: Apple Inc.

    Abstract: A wireless communication device is disclosed for setting transmission slot priorities in a broadcast environment. Upon receipt of a broadcast signal from the wireless communication environment, the UE analyzes the received signal to determine time slots in which members of its own group are transmitting. The UE then sets priorities of previously-used time slots to be low for allocation purposes. When the UE needs to transmit a signal, it first performs allocation of time slots within the signal frame. This allocation is performed based on the earlier-set priorities such that time slots identified as being used by other group members will not be used unless necessary.

    RESOURCE ALLOCATION AND PROCESSING BEHAVIORS FOR NR V2X SIDELINK COMMUNICATIONS

    公开(公告)号:US20210400650A1

    公开(公告)日:2021-12-23

    申请号:US17287754

    申请日:2019-11-01

    Applicant: Apple Inc.

    Abstract: An apparatus of user equipment (UE) includes processing circuitry coupled to a memory, where to configure the UE for New Radio (NR) vehicle-to-everything (V2X) sidelink communication. The processing circuitry is to determine a set of candidate resources of the UE from a sidelink resource pool, the sidelink resource divided into multiple time slots, frequency channels, and frequency sub-channels. Sidelink control information (SCI) is encoded for transmission to a second UE via a physical sidelink control channel (PSCCH). The SCI indicates a plurality of transmission resources of the set of candidate resources. A transport block is mapped across the plurality of transmission resources. A physical sidelink shared channel (PSSCH) is encoded for transmission to the second UE using the plurality of transmission resources, the PSSCH encoded to include the mapped transport block.

    Synchronization for Sidelink Based on Prioritization of Synchronization Signals

    公开(公告)号:US20210176723A1

    公开(公告)日:2021-06-10

    申请号:US17259126

    申请日:2019-08-08

    Applicant: Apple Inc.

    Abstract: Embodiments of a User Equipment (UE) and methods of communication are generally described herein. The UE may attempt to detect synchronization signals, including Long Term Evolution (LTE) synchronization signals from eNBs, New Radio (NR) synchronization signals from gNBs, and sidelink synchronization signals (SLSSs) from other UEs. The UE may prioritize an LTE synchronization signal over an SLSS, and may prioritize an NR synchronization signal over an SLSS. If the UE does not detect an LTE synchronization signal or an NR synchronization signal, the UE may select an SLSS. The UE may prioritize an SLSS from a UE that is directly synchronized to an eNB or a gNB over an SLSS from another UE that is indirectly synchronized to an eNB or a gNB.

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