SIGNALING OF NOT AVAILABLE RESOURCES FOR CENTRAL COORDINATION IN IAB NETWORKS

    公开(公告)号:US20210352666A1

    公开(公告)日:2021-11-11

    申请号:US17286631

    申请日:2019-10-29

    Applicant: Apple Inc.

    Abstract: Embodiments of an integrated access and backhaul (IAB) donor, IAB node, and methods of communication are generally described herein. An IAB network may comprise a plurality of IAB nodes to operate as relays between the IAB donor and one or more User Equipment (UE). The IAB donor may, for each of the IAB nodes, allocate a plurality of subframes to the IAB node. Each allocated subframe may have a subframe type that is one of: a downlink subframe, an uplink subframe, a flexible subframe or a not available subframe. The IAB donor may transmit, from a central unit (CU) of the IAB donor to a distributed unit (DU) an IAB node over an F1 interface, a resource coordination request message that indicates the subframe types of the plurality of subframes.

    COMMUNICATION NETWORK APPARATUS FOR UPLINK SCHEDULING

    公开(公告)号:US20200288494A1

    公开(公告)日:2020-09-10

    申请号:US16650518

    申请日:2018-09-28

    Applicant: APPLE INC.

    Abstract: An apparatus to be used in a UE in a mobile communication network to communicate with a base station, includes a memory configured to store a RRC message, and processing circuitry configured to decode the RRC message to obtain BWP configuration information and mapping information, identify one or more UL BWPs and one or more DL BWPs within a carrier bandwidth per Serving Cell based on the BWP configuration information, identify one or more SR configurations which a LCH is mapped to for the UL BWPs based on the mapping information, the LCH being mapped to none or one SR configuration for each of the UL BWPs, identify activation of a UL BWP of the UL BWPs, and encode an SR on a PUCCH based on a SR configuration for the UL BWP.

    SYSTEM AND METHOD FOR REDUCTION OF HANDOVER INTERRUPTION

    公开(公告)号:US20220256436A1

    公开(公告)日:2022-08-11

    申请号:US17432258

    申请日:2020-02-24

    Applicant: Apple Inc.

    Abstract: Some embodiments of this disclosure include systems, apparatuses, methods, and computer-readable media for the reduction of handover interruptions. Some embodiments include a user equipment (UE) that supports simultaneous connectivity with a source 5G Node B (gNB) and a target gNB during a handover. Some embodiments include the UE receiving source path data packets from the source gNB and target path data packets from a target gNB. The UE performs a first reorder of the one or more source path data packets and the one or more target path data packets by sequence number (SN), and the UE performs header decompression on the reordered source path data packets, separately from the reordered target path data packets. After the header decompressions the UE performs a second reorder of the source path data packets and the target path data packets together by SN, and discards any duplicate data packets based on SNs.

    ASSISTANCE INFORMATION INDICATION FOR RAT AND INTERFACE SELECTION FOR NEW RADIO VEHICLE-TO-EVERYTHING (V2X)

    公开(公告)号:US20220191733A1

    公开(公告)日:2022-06-16

    申请号:US17598661

    申请日:2020-03-27

    Applicant: Apple Inc.

    Abstract: Methods and systems are provided to indicate assistance information for radio access technologies to support interface selection for New Radio (NR) Vehicle-to-Everything (V2X) processes. An upper layer entity exchanges information with lower layer entity while the upper layer can continue to use the existing interface for V2X transmission until it is not able to use the current interface. The upper layer can be a V2X layer and the lower layer can be an Access Stratum (AS) layer. The upper layer can request availability information from the lower layer for other applicable interfaces. The upper layer then instructs the lower layer to provide assistance information for one or more applicable interface(s), depending on whether mapped to the ongoing service. In providing availability information, the lower layer can continuously measure criteria, such as channel conditions, to determine the availability of relevant interfaces and indicate the availability information to the upper layer.

    CONFIGURED GRANT IMPROVEMENT FOR NEW RADIO (NR) UNLICENSED

    公开(公告)号:US20220183049A1

    公开(公告)日:2022-06-09

    申请号:US17440737

    申请日:2020-05-01

    Applicant: Apple Inc.

    Abstract: Some embodiments of this disclosure include systems, apparatuses, methods, and computer-readable media for use in a wireless network for improving configured grant for new radio (NR) unlicensed. For example, some embodiments are directed to an electronic device including radio front end circuitry and processor circuitry. The processor circuitry can be configured to receive, using the radio front end circuitry, a message from a base station and, based on the received message, determine whether to use a lowest Channel Access Priority Class (CAPC) or a highest Units (SDUs) that are multiplexed in one or more MAC Protocol Data Units (PDUs) for an uplink (UL)transmission. The processor circuitry transmits, using the radio front end circuitry, the MAC PDU to the base station.

    APPARATUS AND METHOD OF HANDLING UPLINK LISTEN BEFORE TALK (LBT) FAILURES FOR NEW RADIO (NR) SYSTEMS OPERATING ON UNLICENSED SPECTRUM

    公开(公告)号:US20220167408A1

    公开(公告)日:2022-05-26

    申请号:US17440673

    申请日:2020-11-05

    Applicant: Apple Inc.

    Abstract: Techniques are provided for determining and processing uplink listen before talk (LBT) failures, including the determination of a consistent and systematic LBT failure associated with uplink transmissions in new radio (NR) operating over unlicensed spectrum. For example, a user equipment (UE) identifies a plurality of transmission occasions to be performed by the UE over the unlicensed spectrum. The UE further performs a plurality of listen before talk (LBT) procedures associated with respective ones of the plurality of transmission occasions to be performed by the UE, and tracks a number of LBT failures during the performance of the plurality of LBT procedures, wherein a LBT failure occurs due to a channel used for the associated LBT procedure being busy or when an LBT backoff is still running from a previous LBT failure. The UE further implements a recovery procedure in response to the LBT failures exceeding a predetermined threshold within a predetermined time period.

    UNICAST COMMUNICATION OVER SIDELINK

    公开(公告)号:US20220159751A1

    公开(公告)日:2022-05-19

    申请号:US17437775

    申请日:2020-05-01

    Applicant: Apple Inc.

    Abstract: A method for unicast communication over sidelink includes transmitting a direct communication request message from a source user equipment (UE) to one or more destination UEs. A direct communication response is received at the source UE from at least one of the one or more destination UEs, with the response including context information and a destination sidelink ID for the at least one UE. The context information of the at least one UE is stored in association with an ID pair comprising the destination sidelink ID and a source sidelink ID.

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