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公开(公告)号:US20250071710A1
公开(公告)日:2025-02-27
申请号:US18726251
申请日:2022-01-06
Applicant: Apple Inc.
Inventor: Jie Cui , Yang Tang , Qiming Li , Chunxuan Ye , Manasa Raghavan , Xiang Chen , Huaning Niu , Dawei Zhang , Hong He
Abstract: This disclosure relates to techniques for a wireless device to perform gradual timing adjustments in a non-terrestrial wireless communication system. According to the techniques described herein, a wireless device may establish a non-terrestrial network based wireless link with a cellular base station. The wireless device may detect a trigger for changing a gradual timing adjustment rate from a first gradual timing adjustment rate to a second gradual timing adjustment rate. The wireless device may determine a time window for which to perform gradual timing adjustment at the second gradual timing adjustment rate. The wireless device may perform gradual timing adjustment at the second gradual timing adjustment rate for the time window.
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公开(公告)号:US20250071589A1
公开(公告)日:2025-02-27
申请号:US18726402
申请日:2022-01-06
Applicant: APPLE INC.
Inventor: Jie Cui , Yang Tang , Qiming Li , Manasa Raghavan , Xiang Chen , Huaning Niu , Dawei Zhang , Hong He , Yushu Zhang , Haitong Sun
IPC: H04W24/10 , H04W74/0808
Abstract: This disclosure relates to techniques for performing inter radio access technology measurements without a measurement gap in a wireless communication system. A wireless device and a cellular base station may establish a wireless link according to a first radio access technology. The cellular base station may indicate to the wireless device to perform inter radio access technology measurements. The wireless device may determine that it is capable of performing the inter radio access technology measurements without a measurement gap. The wireless device may provide capability information to the cellular base station indicating that the wireless device is capable of performing the inter radio access technology measurements without a measurement gap. The wireless device may perform the inter radio access technology measurements without a measurement gap.
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公开(公告)号:US12231199B2
公开(公告)日:2025-02-18
申请号:US17593674
申请日:2020-04-30
Applicant: Apple Inc.
Abstract: Exemplary embodiments include methods performed by a user equipment (UE). The methods include transmitting two transmission (Tx) streams simultaneously, wherein the two Tx streams are transmitted by two distinct Tx polarization circuitries within a same UE antenna panel circuitry as two Tx polarizations. The methods also include identifying a first signal, identifying a second signal, transmitting the first signal in a first direction using a first polarization of an antenna panel and transmitting the second signal in a second direction using a second polarization of the antenna panel.
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公开(公告)号:US12225393B2
公开(公告)日:2025-02-11
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 the 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:US12219368B2
公开(公告)日:2025-02-04
申请号:US17438873
申请日:2021-01-14
Applicant: Apple Inc.
Inventor: Yushu Zhang , Haitong Sun , Wei Zeng , Dawei Zhang , Weidong Yang , Yakun Sun , Qiming Li , Jie Cui , Hong He , Chunhai Yao
IPC: H04W16/28 , H04B17/336 , H04W24/10
Abstract: Apparatuses, systems, and methods for beam reporting to facilitate multiple transmission and reception points, multi-TRPs, transmission schemes. A UE may receive, from a base station a configuration to report a beam quality based on at least one of a first reporting scheme and a second reporting scheme or a configuration of measurement resources for each TRP of a plurality of TRPs. The UE may report the beam quality based on the configuration or L1 measurements for multiple beam pairs and a recommended and/or assumed transmission scheme based on the configured measurement resources. The first reporting scheme may include the UE reporting at least one L1 measurement for multiple beams and the second reporting scheme may include the UE reporting at least one L1 measurement for multiple beam pairs. The recommended and/or assumed transmission scheme may be a non-coherent-joint transmission (NC-JT) transmission scheme and/or a single frequency network (SFN) transmission scheme.
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公开(公告)号:US12200557B2
公开(公告)日:2025-01-14
申请号:US17593432
申请日:2021-04-02
Applicant: APPLE INC.
Inventor: Jie Cui , Chunxuan Ye , Dawei Zhang , Hong He , Huaning Niu , Manasa Raghavan , Qiming Li , Sarma V. Vangala , Xiang Chen , Yang Tang
Abstract: Apparatuses, systems, and methods for enhancement in NTN mobility. A cellular base station may serve as a source base station of a handover procedure from the source base station to a target non-terrestrial network (NTN) base station. The cellular base station may configure a parameter associated with the target NTN base station in a handover command, the parameter being related to NTN mobility, and send the handover command to a wireless device for use by the wireless device during the handover procedure. The wireless device may receive the handover command from the cellular base station, and perform the handover procedure using the parameter associated with the target NTN base station.
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公开(公告)号:US12192933B2
公开(公告)日:2025-01-07
申请号:US17441870
申请日:2021-03-31
Applicant: APPLE INC.
Inventor: Jie Cui , Dawei Zhang , Haitong Sun , Hong He , Huaning Niu , Manasa Raghavan , Qiming Li , Xiang Chen , Yang Tang , Yushu Zhang
IPC: H04W56/00
Abstract: The present application relates to devices and components including apparatus, systems, and methods for carrier aggregation operations in wireless communication systems.
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公开(公告)号:US20240413898A1
公开(公告)日:2024-12-12
申请号:US18699770
申请日:2021-10-22
Applicant: APPLE INC.
Inventor: Jie Cui , Chunxuan Ye , Dawei Zhang , Hong He , Huaning Niu , Manasa Raghavan , Qiming Li , Sarma V. Vangala , Xiang Chen , Yang Tang
Abstract: Systems and methods for the use of measurement object having multiple synchronization signal block (SSB)-based measurement timing configurations (SMTCs) indicating a same periodicity and different offsets are disclosed herein. In some of these cases, a wireless communications network can provide a user equipment (UE) with a measurement object (MO) having up to a total number of total SMTCs. or having SMTC sets each of up to a predetermined number of SMTCs. UE determinations regarding a number of the SMTCs to use to perform one or more corresponding SSB measurements during a period of a periodicity indicated by one or more SMTCs of an MO are also discussed. The use of scheduling restrictions by the UE based on non-terrestrial network (NTN) characteristics of one or more of a serving cell and a neighbor cell to be measured are also discussed.
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公开(公告)号:US12160866B2
公开(公告)日:2024-12-03
申请号:US17440041
申请日:2020-03-26
Applicant: Apple Inc.
Inventor: Jie Cui , Yuanye Wang , Hong He , Yang Tang , Qiming Li
Abstract: One or more methods of operating an access node. At least one of the methods includes: detecting a capability indication that indicates a capability of a user equipment (UE) to simultaneously receive and transmit (Rx/Tx) on a first component carrier (CC1) and a second component carrier (CC2); and scheduling, based at least on the capability, a first UE activity to occur over the CC1 and a second UE activity to occur over the CC2 to avoid a collision in a time-domain by prioritizing one of the first UE activity or the second UE activity relative to the other one of the first UE activity or the second UE activity.
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公开(公告)号:US12156185B2
公开(公告)日:2024-11-26
申请号:US17593363
申请日:2021-07-26
Applicant: APPLE INC.
Inventor: Huaning Niu , Dawei Zhang , Jie Cui , Manasa Raghavan , Qiming Li , Sharad Sambhwani , Xiang Chen , Yang Tang
IPC: H04W72/0446 , H04L5/14 , H04W72/11 , H04W72/231
Abstract: Systems and methods for implementing uplink (UL) gaps to facilitate user equipment (UE) calibration are disclosed herein. A UE determines one or more slot patterns of a slot configuration that is repeated during time division duplex (TDD) communication with a base station. The UE determines a UL gap periodicity (defining periods covering an integer number of repetitions of the slot configuration). The UE then performs UE calibration during one or more semi-persistently configured UL slots of a period of the UL gap periodicity that correspond to UL indication(s) in one or more of a common configuration, a dedicated configuration, and/or a slot format indication (SFI) downlink control information (DCI) for the slot pattern(s) of the slot configuration. Methods of identifying particular semi-persistently configured UL slots of a period to use for the UL gap are also discussed. UL slot indications from dynamic DCI are not used for UL gap purposes.
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