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121.
公开(公告)号:US20220173786A1
公开(公告)日:2022-06-02
申请号:US17593677
申请日:2020-06-26
Applicant: Apple Inc.
Inventor: Jie CUI , Zhibin YU , Yang TANG , Manasa RAGHAVAN , Qiming LI
Abstract: The exemplary embodiments describe devices, systems and methods for adaptive uplink (UL) timing adjustment for beam switching. A user equipment (UE) may perform a beam switch from a first beam to a second beam, determine a timing offset associated with the second beam and apply an uplink (UL) timing adjustment based on the timing offset associated with the second beam. In some embodiments, the timing offset may be determined based on information received after the beam switch. In other embodiments, the timing offset may be determined based on information receive prior to the beam switch.
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公开(公告)号:US20220141684A1
公开(公告)日:2022-05-05
申请号:US17432823
申请日:2020-02-24
Applicant: Apple Inc.
Inventor: Qiming LI , Jie CUI , Yang TANG , Hua LI , Andrey CHERVYAKOV
IPC: H04W24/06 , H04B7/26 , H04B17/309 , H04W56/00 , G01S3/02
Abstract: A system, method, and apparatus is provided for performing testing using arrival of angles (AOA). The system, method, and apparatus can receive a first test signal from a first cell; receive a second test signal from a second cell; and perform a test based on AOA of the first test signal and the second test signal. At least one of the first test signal and the second test signal can include a channel state information-reference signal (CSI-RS) signal or a synchronization signal block (SSB) signal. The first test signal can include a different number of SSBs transmitted during an Measurement Timing Configuration (MTC) window when compared to the second test signal. The system, method, and apparatus can receive the first test signal and the second test signal in a time division multiple access (TDMA) manner. The first cell can include a serving cell and the second cell can include a neighboring cell of the serving cell. The system, method, and apparatus can receive the first test signal using a main lobe of an antenna and the second test signal using a side lobe of the antenna.
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公开(公告)号:US20220132344A1
公开(公告)日:2022-04-28
申请号:US17431286
申请日:2020-02-21
Applicant: Apple Inc.
Inventor: Yuhan ZHOU , Qiming LI , Shuang TIAN , Jie CUI , Rui HUANG , Yang TANG
Abstract: Some embodiments of this disclosure include systems, apparatuses, methods, and computer-readable media for use in a wireless network for radio link monitoring for high speed user equipment (UE). For example, some embodiments are directed to a user equipment (UE) including radio front end circuitry and processor circuitry coupled to the radio front end circuitry. The processor circuitry can be configured to monitor a downlink associated with a cell using a reference signal and estimate a downlink radio link quality associated with the downlink. The processor circuitry can further be configured to compare the estimated downlink radio link quality with a threshold. The processor circuitry can further be configured to trigger an out-of-sync operation in response to the downlink radio link quality being worse than the threshold. The threshold can include a value less than 10%.
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公开(公告)号:US20220022064A1
公开(公告)日:2022-01-20
申请号:US17290692
申请日:2019-10-30
Applicant: Apple Inc.
Inventor: Manasa RAGHAVAN , Hua LI , Jie CUI , Hong HE , Yang TANG
Abstract: Systems, apparatuses, methods, and computer-readable media are provided for radio link monitoring (RLM) evaluation period and layer 1 (L1) indication interval enhancements. A user equipment (UE) uses a scaling factor to scale the RLM evaluation period and/or the L1 indication interval. Different scaling factors may be used for different scenarios, conditions, or criteria. The same or different scaling factors may be used for the RLM evaluation period and the L1 indication interval. The scaling factor or a scaling factor index may be signaled to the UE by higher layer signaling. Other embodiments may be described and/or claimed.
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公开(公告)号:US20210385681A1
公开(公告)日:2021-12-09
申请号:US17288330
申请日:2019-10-22
Applicant: Apple Inc.
Abstract: Methods, systems, and storage media are described for enhancements to measurement gaps for new radio (NR) systems. Other embodiments may be described and/or claimed.
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公开(公告)号:US20210243766A1
公开(公告)日:2021-08-05
申请号:US17250652
申请日:2019-08-19
Applicant: Apple Inc.
Inventor: Yuhan ZHOU , Jie CUI , Yang TANG , Hua LI , Rui HUANG
Abstract: An apparatus of a user equipment (UE) comprises one or more baseband processors to process a bandwidth part (BWP) switching request from a serving cell at slot n, and to perform an active BWP switch to a new BWP on the serving cell at a time no later than slot n+Y, wherein Y is a BWP switching delay. The one or more baseband processors are to accommodate a timing advance (TA) value to determine when to perform the active BWP switch. The apparatus can include a memory to store the BWP switching request.
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公开(公告)号:US20210144782A1
公开(公告)日:2021-05-13
申请号:US17154206
申请日:2021-01-21
Applicant: Apple Inc.
Inventor: Rui HUANG , Jie CUI , Yang TANG , Hua LI , Yuhan ZHOU
Abstract: Embodiments of the present disclosure describe methods, apparatuses, storage media, and systems for cell identification (ID) and beam ID detections in new radio (NR). The detections comprise NR primary synchronization signal (PSS)/secondary synchronization signal (SSS) detection, PBCH DMRS detection, SS reference signal received power (RSRP) measurement, and slot/SS burst boundary timing acquiring. Various embodiments describe how to detect a cell ID and a beam ID in millimeter wave (mmWave) operation. Other embodiments describe further details regarding how to detect NR cell and beam ID during intra-frequency measurements.
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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.
Inventor: Alexander SIROTKIN , Candy YIU , Yang TANG , Youn Hyoung HEO , Jaemin HAN , Jie CUI
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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公开(公告)号:US20250055627A1
公开(公告)日:2025-02-13
申请号:US18931725
申请日:2024-10-30
Applicant: Apple Inc.
Inventor: Yushu ZHANG , Chunhai YAO , Chunxuan YE , Dawei ZHANG , Fangli XU , Haijing HU , Haitong SUN , Hong HE , Jie CUI , Oghenekome OTERI , Wei ZENG , Weidong YANG , Yang TANG , Yuchul KIM , Yuqin CHEN
Abstract: User equipment (UE) operation in a single frequency network (SFN). The UE may receive one or more transmission configuration indication (TCI) states corresponding to one or more downlink resources, receive a demodulated reference signal (DMRS) wherein the DMRS is quasi co-located (QCLed) with one or more channel state information reference signal (CSI-RS) from multiple cells of a SFN and quasi co-location (QCL) information is included in the one or more TCI and determine a time and frequency offset corresponding to each of the multiple cells based on the CSI-RS.
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130.
公开(公告)号:US20250055547A1
公开(公告)日:2025-02-13
申请号:US18722308
申请日:2022-12-09
Applicant: APPLE INC.
Inventor: Hong HE , Chunxuan YE , Dawei ZHANG , Haitong SUN , Jie CUI , Oghenekome OTERI , Seyed Ali Akbar FAKOORIAN , Sigen YE , Wei ZENG , Weidong YANG
Abstract: Systems and method are provided for determining access link direction beams for smart repeaters (SMRs). An SMR may be configured with a set of SMR transmission beam indicator (TBI) state (SMR-TBI State) configurations. The SMR-TBI State configurations in the set respectively comprise an SMR-TBI State identifier (ID), a cell index, and a reference signal associated with a beam for an access link between the SMR and a user equipment (UE). The SMR may receive, through a backhaul link from a base station, an indication of one or more active SMR-TBI States. For at least one of the one or more active SMR-TBI States, the SMR may forward a signal between the base station and the UE using the beam associated with the reference signal in a corresponding SMR-TBI State configuration.
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