RECEIVE ANTENNA RELATIVE PHASE MEASUREMENTS FOR NR

    公开(公告)号:US20220077942A1

    公开(公告)日:2022-03-10

    申请号:US17419591

    申请日:2020-02-14

    Applicant: Apple Inc.

    Abstract: An approach is described to for new radio (NR) antenna test function (ATF) measurements by a user equipment (UE). The approach includes measuring a first average phase of receive signals on resource elements that carry secondary synchronization signals (SS) received by a reference individual receiver branch. The approach also includes measuring a second average phase of the receive signals on the resource elements that carry secondary synchronization signals received by one other individual receiver branch different from the reference individual receiver branch. The approach further includes determining a difference between the first average phase and the second average phase. An indication of the difference is reported to test equipment.

    Sidelink Communication Under Control of LTE UU Interface or NR Interface

    公开(公告)号:US20210321234A1

    公开(公告)日:2021-10-14

    申请号:US17258903

    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 detect one or more LTE synchronization signals from an eNB over an LTE Uu interface between the UE and the eNB. The LTE synchronization signals may be detected in resources allocated for LTE communication. The LTE synchronization signals may be detected in accordance with an LTE protocol. The UE may determine, based on the LTE synchronization signals, a reference timing and a reference frequency for NR vehicle-to-everything (V2X) communication over an NR PC5 interface with another UE.

    TRANSMISSION CONFIGURATION INDICATION (TCI) STATE AND BEAM SWITCHING

    公开(公告)号:US20240022305A1

    公开(公告)日:2024-01-18

    申请号:US18475468

    申请日:2023-09-27

    Applicant: Apple Inc.

    CPC classification number: H04B7/063

    Abstract: Techniques for changing a Transmission Configuration Indication (TCI) state by a user equipment (UE) operating in a wireless communications system are provided. The UE receives a first message including a TCI state change command from a network and determines, based on the first message, whether a time offset/frequency offset (TO/FO) and a reception (Rx) beam for a new TCI state are known by the UE. Based on the determination, the UE calculates a time delay of the UE to be prepared to receive a reference signal with the new TCI state, generates a second message indicating the time delay of the UE for the new TCI state, and transmits the second message to the network.

    TRANSMISSION CONFIGURATION INDICATION (TCI) STATE AND BEAM SWITCHING

    公开(公告)号:US20220200675A1

    公开(公告)日:2022-06-23

    申请号:US17599930

    申请日:2020-03-30

    Applicant: Apple Inc.

    Abstract: Techniques for changing a Transmission Configuration Indication (TCI) state by a user equipment (UE) operating in a wireless communications system are provided. The UE receives a first message including a TCI state change command from a network and determines, based on the first message, whether a time offset/frequency offset (TO/FO) and a reception (Rx) beam for a new TCI state are known by the UE. Based on the determination, the UE calculates a time delay of the UE to be prepared to receive a reference signal with the new TCI state, generates a second message indicating the time delay of the UE for the new TCI state, and transmits the second message to the network.

    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.

    RADIO RESOURCE MANAGEMENT (RRM) TESTING USING ANDLE OF ARRIVAL (AOA)

    公开(公告)号:US20220141684A1

    公开(公告)日:2022-05-05

    申请号:US17432823

    申请日:2020-02-24

    Applicant: Apple Inc.

    Abstract: A system, method, and apparatus is provided for performing testing using arrival of angles (AOA). The system, method, and apparatus can receive a first test signal from a first cell; receive a second test signal from a second cell; and perform a test based on AOA of the first test signal and the second test signal. At least one of the first test signal and the second test signal can include a channel state information-reference signal (CSI-RS) signal or a synchronization signal block (SSB) signal. The first test signal can include a different number of SSBs transmitted during an Measurement Timing Configuration (MTC) window when compared to the second test signal. The system, method, and apparatus can receive the first test signal and the second test signal in a time division multiple access (TDMA) manner. The first cell can include a serving cell and the second cell can include a neighboring cell of the serving cell. The system, method, and apparatus can receive the first test signal using a main lobe of an antenna and the second test signal using a side lobe of the antenna.

    METHODS FOR SNR, ES AND NOC SETUP FOR NR PERFORMANCE REQUIREMENTS

    公开(公告)号:US20220109515A1

    公开(公告)日:2022-04-07

    申请号:US17430627

    申请日:2020-02-14

    Applicant: Apple Inc.

    Abstract: Some embodiments of this disclosure are directed to apparatuses and method for establishing signal-to-noise ratio (SNR), useful signal power level (Es) and artificial noise power level (Noc) values for new radio (NR) performance requirements. The apparatuses and methods can include processing a received signal including the Es and Noc and determining a baseband signal-to-noise ratio (SNR) degradation based on the signal power level, the artificial noise power level, and the radio-frequency noise power level. The apparatuses and methods can then determine a compensated SNR degradation, as a performance requirement, based on the baseband SNR degradation and the radio-frequency noise power level.

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