Techniques in measurement gap configurations in new radio (NR)

    公开(公告)号:US11363476B2

    公开(公告)日:2022-06-14

    申请号:US16392936

    申请日:2019-04-24

    Applicant: Apple Inc.

    Abstract: Embodiments of the present disclosure describe methods, apparatuses, storage media, and systems for beam management techniques in New Radio (NR) Standalone (SA) applications. Various embodiments describe how to configure one or more measurement gaps in an NR SA network so that a UE may apply the same or different measurement gaps while operating with various technologies or services in various frequency ranges. Other embodiments may be described and claimed.

    Generation Node-B (GNB), User Equipment (UE) and Methods for Handover in New Radio (NR) Systems

    公开(公告)号:US20220070744A1

    公开(公告)日:2022-03-03

    申请号:US17498443

    申请日:2021-10-11

    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 receive, from the UE, a first measurement report that indicates a first signal quality measurement based on new radio synchronization signals (NR-SS). The gNB may determine, based on reception of the first measurement report, a transmission direction for transmission of channel state information reference signals (CSI-RS) for a second RRM measurement at the UE based on the CSI-RS. The gNB may receive, from the UE, a second measurement report that indicates a second signal quality measurement based on the CSI-RS. The gNB may determine, based at least partly on the first and second signal quality measurements, whether to initiate a handover of the UE from a serving cell to a neighbor cell.

    ROBUST HEADER COMPRESSION INDICATION AFTER PATH SWITCH DURING HANDOVER

    公开(公告)号:US20210385709A1

    公开(公告)日:2021-12-09

    申请号:US17288394

    申请日:2019-10-24

    Applicant: Apple Inc.

    Abstract: Systems, methods, and devices are provided to: perform packet data convergence protocol (PDCP) deciphering of the packets to store deciphered packets in a common buffer; perform PDCP reordering of the deciphered packets in the common buffer to generated a stream or reordered packets; perform robust header compression (ROHC) decompression on the stream of reordered packets; and determine, based on a packet indication, to reset the ROHC decompression, wherein the packet indication comprises a single bit in a PDCP header set to indicate a start of ROHC reset based on a path switch during a handover from a source cell to a target cell.

    METHODS AND ARRANGMENTS FOR MEASUREMENT GAP CONFIGURATION

    公开(公告)号:US20210367741A1

    公开(公告)日:2021-11-25

    申请号:US16976873

    申请日:2018-08-10

    Applicant: Apple Inc.

    Abstract: Logic may receive an initial communication from a user device, the initial communication comprising capabilities. Logic may determine, based on an indication of a capability to support new radio frequency layers from the capabilities for the user device, a measurement gap configuration for the new radio frequency layers and a measurement gap configuration for a channel state information reference signal. Logic may send a frame with a preamble to a physical layer comprising the measurement gap configuration. Logic may send an initial communication to a physical layer, wherein the initial communication comprises capabilities for a user device. Logic may decode downlink data with a measurement gap configuration. And logic may parse the measurement gap configuration to determine at least one measurement gap identification and at least one offset for the new radio frequency layers and a channel state information reference signal.

    Generation Node-B (GNB), user equipment (UE) and methods for handover in new radio (NR) systems

    公开(公告)号:US11147000B2

    公开(公告)日:2021-10-12

    申请号:US16473235

    申请日:2017-12-22

    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 receive, from the UE, a first measurement report that indicates a first signal quality measurement based on new radio synchronization signals (NR-SS). The gNB may determine, based on reception of the first measurement report, a transmission direction for transmission of channel state information reference signals (CSI-RS) for a second RRM measurement at the UE based on the CSI-RS. The gNB may receive, from the UE, a second measurement report that indicates a second signal quality measurement based on the CSI-RS. The gNB may determine, based at least partly on the first and second signal quality measurements, whether to initiate a handover of the UE from a serving cell to a neighbor cell.

    Gap pattern design for new radio (NR) systems

    公开(公告)号:US11070999B2

    公开(公告)日:2021-07-20

    申请号:US16499747

    申请日:2018-05-01

    Applicant: APPLE INC.

    Abstract: Technology for a user equipment (UE) operable to decode measurement gap patterns received from a Next Generation NodeB (gNB) is disclosed. The UE can decode a per-frequency range (per-FR) measurement gap pattern received from the gNB in a New Radio (NR) system. The per-FR measurement gap pattern can indicate a measurement gap partem for monitoring selected frequency layers within a frequency range at the UE. The UE can process one or more measurements for the selected frequency layers within the frequency range. The one or more measurements for the selected frequency layers can be measured in accordance with the per-FR measurement gap pattern. The UE can encode the one or more measurements for the selected frequency layers for reporting to the gNB.

    Beamforming Measurements Based on PSS/SSS

    公开(公告)号:US20210160747A1

    公开(公告)日:2021-05-27

    申请号:US17164561

    申请日:2021-02-01

    Applicant: Apple Inc.

    Abstract: Beamforming measurement techniques based on PSS/SSS are disclosed. An apparatus of a user equipment (UE) can include processing circuitry configured to decode a configuration message from a source serving cell, the configuration message indicating signal selection criteria for cell measurement reporting. A synchronization signal (SS) burst set associated with one or more transmission/reception points (TRPs) within a neighboring cell is decoded, the SS burst set including a plurality of SS blocks. A cell bcamforming measurement signal associated with the neighboring cell is generated, based on signal measurements of the SS blocks and the signal selection criteria. A radio resource management (RRM) measurement report message is encoded for transmission to the serving cell, the measurement report message including the cell beamforming measurement signal. A handover command message for initiating a handover to the neighboring cell is decoded, the handover command based on the cell beamforming measurement signal.

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