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    RLM enhancements for 5G networks
    21.
    发明授权
    RLM enhancements for 5G networks 有权

    公开(公告)号：US11477676B2

    公开(公告)日：2022-10-18

    申请号：US17289013

    申请日：2019-10-29

    Applicant: Apple Inc.

    Inventor： Bishwarup Mondal ,  Lopamudra Kundu ,  Seau S. Lim ,  Dae Won Lee

    IPC: H04W24/08 ,  H04L5/00 ,  H04J11/00 ,  H04W76/18 ,  H04L1/20 ,  H04W74/08

    Abstract: An apparatus of user equipment (UE) includes processing circuitry coup led to a memory, where to configure the UE for radio link monitoring (RLM) in a New Radio-Unlicensed (NR-U) network, the processing circuitry is to decode radio resource control (RRC) signaling from a base station. The RRC signaling includes configuration information to configure transmission occasions for a plurality of RLM reference signals (RLM-RSs). A primary synchronization signal (PSS) or a secondary synchronization signal (SSS) detection is performed to determine a number of RLM-RSs of the plurality of RLM-RSs that are successfully transmitted during the transmission occasions. Signal measurements are performed on the RLM-RSs that are successfully transmitted within an evaluation duration to determine a block error rate (BLER). The signal measurements are performed when the number is higher than a threshold number. An in-sync (IS) indicator or an out-of-sync (OOS) indicator are generated based on the signal measurements.

    Low latency physical random access channel design
    22.
    发明授权
    Low latency physical random access channel design 有权

    公开(公告)号：US11368981B2

    公开(公告)日：2022-06-21

    申请号：US16085532

    申请日：2017-04-14

    Applicant: Apple Inc.

    Inventor： Qiaoyang Ye ,  Huaning Niu ,  Abhijeet Bhorkar ,  Seau S. Lim ,  Jeongho Jeon

    IPC: H04W4/00 ,  H04W74/08 ,  H04W74/00

    Abstract: Described is an apparatus of an Evolved Node-B (eNB) operable to communicate with a User Equipment (UE) on a wireless network. The apparatus may comprise a first circuitry and a second circuitry. The first circuitry may be operable to initiate a Listen-Before-Talk (LBT) procedure on a bandwidth of the wireless network, the bandwidth being unlicensed spectrum. The second circuitry may be operable to generate a transmission if the LBT procedure indicates that the bandwidth is idle, the transmission comprising a Physical Random Access Channel (PRACH) preamble portion and a message portion.

    Systems, methods and devices for measurement configuration by a secondary node in EN-DC
    24.
    发明授权
    Systems, methods and devices for measurement configuration by a secondary node in EN-DC 有权

    公开(公告)号：US11122453B2

    公开(公告)日：2021-09-14

    申请号：US16479487

    申请日：2018-03-20

    Applicant: Apple Inc.

    Inventor： Candy Yiu ,  Sudeep K. Palat ,  Seau S. Lim ,  Yujian Zhang

    IPC: H04W4/00 ,  H04W24/10 ,  H04W36/00 ,  H04W72/04

    Abstract: A secondary node (SN) in evolved universal mobile telecommunications system terrestrial radio access network new radio-dual connectivity (EN-DC) with a master node (MN) can directly provide measurement configuration and receive measurement reports from a UE and/or coordinate measurement configuration and reporting with the MN. For example, only one measurement object configuration is allowed for a frequency, but both MN and SN can provide measurement reporting configurations on the same measurement object. The UE can send measurement reports for the same measurement object to both MN and SN or the node that configured the reporting criteria configuration. In another embodiment, only one node provides the reporting configuration but configures the UE to provide reporting to one node or both MN and SN.

    UE paging in NR unlicensed spectrum
    27.
    发明授权
    UE paging in NR unlicensed spectrum 有权

    公开(公告)号：US12245190B2

    公开(公告)日：2025-03-04

    申请号：US17275531

    申请日：2019-09-25

    Applicant: Apple Inc.

    Inventor： Anthony Lee ,  Seau S. Lim ,  Yongjun Kwak ,  Youn Hyoung Heo ,  Lopamudra Kundu ,  Dae Won Lee

    IPC: H04W68/02 ,  H04W72/04 ,  H04W72/12

    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.

    Scheduling Request Enhancements For 5G Networks
    28.
    发明申请
    Scheduling Request Enhancements For 5G Networks 有权

    公开(公告)号：US20240373461A1

    公开(公告)日：2024-11-07

    申请号：US18778381

    申请日：2024-07-19

    Applicant: Apple Inc.

    Inventor： Anthony Lee ,  Seau S. Lim ,  Youn Hyoung Heo

    IPC: H04W74/0808 ,  H04W16/14 ,  H04W72/12 ,  H04W72/21 ,  H04W76/19

    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.

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