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    Apparatus and method for congestion handling in radio access network
    1.
    发明授权
    Apparatus and method for congestion handling in radio access network 有权

    公开(公告)号：US12010548B2

    公开(公告)日：2024-06-11

    申请号：US17274116

    申请日：2019-09-05

    申请人： Apple Inc.

    发明人： Murali Narasimha ,  Jaemin Han ,  Candy Yiu ,  Alexander Sirotkin

    IPC分类号： H04W28/02 ,  H04W28/086 ,  H04W88/14

    CPC分类号： H04W28/0284 ,  H04W28/0273 ,  H04W28/0862 ,  H04W88/14

    摘要： Provided herein is an apparatus and a method for congestion handling in RAN. The disclosure provides an apparatus for a relay node in a RAN including the relay node and a donor node providing an interface to a core network and a backhaul link to the relay node. The apparatus includes a RF interface to receive and transmit downlink data for one or more UEs or UE bearers; and a processing circuitry coupled with the RF interface. The processing circuitry is to determine a downlink congestion occurs at the relay node; and generate a downlink congestion indication to identify a UE or a UE bearer or a backhaul RLC channel affected by the downlink congestion. The RF interface is to transmit the downlink congestion indication to the donor node. In addition to the downlink congestion handling, the relay node can also be to handle uplink congestion in a similar way.

    User equipment Layer 2 buffer operation in IAB networks
    4.
    发明授权
    User equipment Layer 2 buffer operation in IAB networks 有权

    公开(公告)号：US12004071B2

    公开(公告)日：2024-06-04

    申请号：US17656943

    申请日：2022-03-29

    申请人： Apple Inc.

    发明人： Murali Narasimha ,  Ralf Rossbach ,  Sarma V. Vangala

    IPC分类号： H04W40/24 ,  H04W28/02 ,  H04W88/14

    CPC分类号： H04W40/248 ,  H04W28/0257 ,  H04W88/14

    摘要： A user equipment (UE) is configured to access a first base station in a network via an access link, wherein the first base station is an integrated access and backhaul (IAB) node in a first IAB network topology connected to a second base station via one or more backhaul links, wherein the second base station is an IAB-donor for the first base station, report, to the first base station, information for reducing a maximum data rate for the UE when the UE is deployed in one or more IAB network topologies and receive data packages with a reduced maximum data rate based on the reported information.

    Managing control plane latency for integrated access and backhaul
    7.
    发明授权
    Managing control plane latency for integrated access and backhaul 有权

    公开(公告)号：US11463938B2

    公开(公告)日：2022-10-04

    申请号：US17275108

    申请日：2019-09-25

    申请人： Apple Inc.

    发明人： Yujian Zhang ,  Qian Li ,  Youn Hyoung Heo ,  Sudeep K. Palat ,  Murali Narasimha

    IPC分类号： H04W40/22 ,  H04B7/15 ,  H04W72/12 ,  H04W28/02 ,  H04W40/30 ,  H04W74/08 ,  H04W84/04 ,  H04W88/08 ,  H04W92/20

    摘要： 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 LCID field in the MAC subheader 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.

    METHODS FOR DISCONTINUOUS RECEPTION AND ENERGY SAVINGS IN NR BASED UNLICENSED CARRIER COMMUNICATION
    8.
    发明申请
    METHODS FOR DISCONTINUOUS RECEPTION AND ENERGY SAVINGS IN NR BASED UNLICENSED CARRIER COMMUNICATION 有权

    公开(公告)号：US20220132420A1

    公开(公告)日：2022-04-28

    申请号：US17431277

    申请日：2020-03-26

    申请人： Apple Inc.

    发明人： Murali Narasimha ,  Seau S. Lim ,  Anthony Lee ,  Yongjun Kwak

    IPC分类号： H04W52/02 ,  H04W74/08

    摘要： A user equipment (UE), or other network component can operate to generate listen-before-talk (LBT) operations in order to manage power consumption by configuring the discontinuous reception (DRX) in a dynamic manner. The UE can configure an extended active time for the DRX based on whether the LBT is successful and an acquisition channel indication from a base station, e.g., a next generation NodeB (gNB). The UE can operate aperiodic wakeup occasions with or independently of periodic DRX on-durations to better manage power while monitoring a channel for unlicensed carrier communications.