UNIFYING SPLIT BEARERS IN LTE INTERWORKING

    公开(公告)号:US20210282213A1

    公开(公告)日:2021-09-09

    申请号:US16465398

    申请日:2018-05-05

    Applicant: Apple Inc.

    Abstract: Techniques for unifying split bearers at user equipment (UE) in an Evolved-Universal Terrestrial Radio Access-New Radio (E-ULTRA NR) dual connectivity (EN-DC) environment are described. According to various such techniques, a radio resource control (RRC) message can include an encapsulated configuration for a secondary cell group (SCG). Packet data convergence protocol (PDCP) configurations for MN or SN split bearers can be included in the master cell group (MCG) configuration in the RRC message or in the encapsulated SCG configuration. In some examples, an RRC message can include an encapsulated SCG configuration and an encapsulated PDCP configuration, where the encapsulated PDCP configuration including PDCP configuration information for the MN or SN split bearer. Other embodiments are described and claimed.

    Managing Control Plane Latency for Integrated Access and Backhaul

    公开(公告)号:US20230087582A1

    公开(公告)日:2023-03-23

    申请号:US17959186

    申请日:2022-10-03

    Applicant: Apple Inc.

    Abstract: Systems and methods of reducing control plane latency in a 5G IAB network are described. SRs transmitted between nodes indicate that a control plane PDU is to be transmitted. The SRs use periodic resources or OCCs reserved for control plane signaling and are initiated by an RRC message or RACH from the UE. The SRs are initiated if the LCD field in the MAC sub header of the RRC message indicates the CCCH or the DCCH logical channel. If the PDU is available after the original resource, a resource is used that is provided via another grant, which is periodically provided or automatically initiated due to failure to transmit on the original grant. The SR or RRC message can also specify a delayed timeslot for the grant. For contention-based procedures the RACH preamble is randomly selected or selected from among a set of RACH preambles assigned for RRC procedures.

    SIDELINK CONNECTION ESTABLISHMENT DESIGN TO SUPPORT UNICAST AND GROUPCAST COMMUNICATION FOR NR V2X

    公开(公告)号:US20220124466A1

    公开(公告)日:2022-04-21

    申请号:US17422665

    申请日:2020-01-16

    Applicant: Apple Inc.

    Abstract: Some embodiments of this disclosure include apparatuses and methods for sidelink connection establishment design to support unicast and groupcast communication for NR V2X in a wireless communication system. The apparatuses and methods include at least generating an announcement of support for a unicast or a groupcast communication for a vehicle-to-everything (V2X) service, generating one or more connection establishment request messages for a secure link establishment to a second UE, to support a V2X communication to enable the V2X service, where the one or more connection establishment request message includes: a first connection establishment request message that is transmitted over a PC5-S interface, and a second connection establishment request message that is transmitted over a PC5-RRC interface. The apparatuses and methods further include at least processing a response message from the second UE that accepts or rejects the connection establishment request message for the secure link establishment.

    UE PAGING IN NR UNLICENSED SPECTRUM

    公开(公告)号:US20220116911A1

    公开(公告)日:2022-04-14

    申请号:US17275531

    申请日:2019-09-25

    Applicant: Apple Inc.

    Abstract: Systems and methods of increasing paging opportunities when the unlicensed band is used are described. The gNB sends an RRC message that indicates multiple monitoring occasions in a paging occasion of a paging frame. The UE monitors a monitoring occasion of a PO to determine whether a PDCCH with a P-RNTI has been received in an unlicensed band. If such a PDCCH is received, the UE decodes PDSCH information in the PDCCH to determine whether the P-RNTI is a P-RNTI of the UE. If so, the UE avoids monitoring subsequent monitoring occasions of the PO. If the PDCCH does not contain a P-RNTI, the UE continues to monitor other monitoring occasions within the PO.

    NR RRM Enhancements in Measurement Event and Reporting and Cell Reselection Criteria for Unlicensed Band Operation

    公开(公告)号:US20220095176A1

    公开(公告)日:2022-03-24

    申请号:US17419600

    申请日:2020-02-11

    Applicant: Apple Inc.

    Abstract: An approach is described for a user equipment (UE) configured for a new radio (NR) system with unlicensed spectrum. The UE includes processor circuitry that performs a first channel load measurement at a first frequency of a serving cell and a second channel load measurement at a second frequency of a neighbor cell and associates a report with the first channel load measurement and the second channel load measurement. At least one of the first frequency and the second frequency is in the unlicensed spectrum. The UE also includes radio front end circuitry that is coupled to the processor circuitry and configured to transmit the report to an access node (AN).

    SCHEDULING REQUEST ENHANCEMENTS FOR 5G NETWORKS

    公开(公告)号:US20210352717A1

    公开(公告)日:2021-11-11

    申请号:US17284707

    申请日:2019-10-29

    Applicant: Apple Inc.

    Abstract: An apparatus of user equipment (UE) includes processing circuitry coupled to memory, where to configure the UE for communication of data in a New Radio-Unlicensed (NR-U) spectrum, the processing circuitry is to decode RRC signaling from a base station. The RRC signaling includes configuration information to configure a listen-before-talk (LBT) timer and a scheduling request (SR) prohibit timer. An LBT procedure is performed while the LBT timer is activated. An SR is encoded for transmission to the base station, based on detecting an unoccupied transmission resource within the NR-U spectrum during the LBT procedure. The SR transmission activates the SR prohibit timer. An uplink grant from the base station is decoded in response to the SR, the uplink grant received while the SR prohibit timer is activated. A buffer status report (BSR) is encoded for transmission to the base station based on the uplink grant.

    UE CAPABILITY TRANSFER AND STORAGE
    29.
    发明申请

    公开(公告)号:US20210352467A1

    公开(公告)日:2021-11-11

    申请号:US17282836

    申请日:2019-10-11

    Applicant: Apple Inc.

    Abstract: Systems and methods of providing UE capability are described. A capability ID is associated with the same Radio Capability information for multiple UEs. If the capability ID is validated at a network node, the UE provides the capability ID to a RAN node, which obtains the capability information from the network node after providing the received capability ID to the RAN node. The capability ID is received in an RRC Setup Complete, Security Mode Complete or Reconfiguration Complete message. The network node, if the Radio Capability information is not available, requests and receives the Radio Capability information and associates it with the capability ID, and marks that the capability ID as not validated until a threshold number of the UEs have provided the same Radio Capability information. The capability ID is based on a UE device type, manufacturer and software version.

    Configure Measurement Gaps for CSI-RS from Neighbor Cells in NR

    公开(公告)号:US20200252997A1

    公开(公告)日:2020-08-06

    申请号:US16637478

    申请日:2018-07-17

    Applicant: Apple Inc.

    Abstract: Embodiments of a generation Node-B (gNB), User Equipment (UE) and methods to configure measurement gaps are generally described herein. A serving cell gNB may transmit, to a neighbor cell gNB, a channel state information reference signal (CSI-RS) status request message and may receive, from the neighbor cell gNB 105, a CSI-RS status update message. The serving cell gNB may determine, based on timing information in the CSI-RS status update message, a measurement gap to be reserved for transmission of CSI-RS from the neighbor cell gNB to a UE that is served by the serving cell gNB. The serving cell gNB may transmit, to the UE, control signaling that indicates the measurement gap. The serving cell gNB may receive, from the UE, a measurement report that indicates a signal quality measurement based on the CSI-RS from the neighbor cell gNB.

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