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公开(公告)号:US20220014286A1
公开(公告)日:2022-01-13
申请号:US17295271
申请日:2019-11-18
Applicant: APPLE INC.
Inventor: Salvatore Talarico , Rui Huang , Huaning Niu
IPC: H04B17/318 , H04B1/713 , H04L27/00
Abstract: Technology for a user equipment (UE) operable to perform reference signal received power (RSRP) measurements in an enhanced Machine Type Communication in an unlicensed spectrum (eMTC-U) system is disclosed. The UE can decode a presence-detection reference signal (PD-RS) received on one or more data channels from a Next Generation NodeB (gNB) in the eMTC-U system. The UE can perform an RSRP measurement using the PD-RS received on the one or more data channels from the gNB. The RSRP measurement can be performed over a selected measurement period and a selected measurement frequency bandwidth.
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公开(公告)号:US11129057B2
公开(公告)日:2021-09-21
申请号:US16417992
申请日:2019-05-21
Applicant: Apple Inc.
Inventor: Andrey Chervyakov , Rui Huang , Yang Tang , Jie Cui , Yuhan Zhou
Abstract: User equipment (UE) includes processing circuitry coupled to memory. To configure the UE for active bandwidth part (BWP) switching, the processing circuitry is to decode RRC signaling configuring a plurality of BWPs for the UE. The RRC signaling further includes an indicator for an initial BWP of the plurality of BWPs for initial use by the UE as an active BWP. DCI received on a PDCCH is decoded, which includes a BWP indicator for switching the active BWP from the initial BWP to another BWP of the plurality of BWPs. RF and baseband parameters to switch the active BWP from the initial BWP to the another BWP are reconfigured. Reconfiguring the RF and baseband parameters cause an interruption of one or more slots of a serving cell of the UE. A starting time of the interruption is within a time duration of a BWP switching delay supported by the UE.
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公开(公告)号:US11096076B2
公开(公告)日:2021-08-17
申请号:US15827221
申请日:2017-11-30
Applicant: APPLE INC.
Abstract: A prioritized cell identification and measurement method is disclosed. The method classifies frequency layers to be monitored and measured by an user equipment into normal- and reduced-performance groups. Several different embodiments are described. Where appropriate, the corresponding signaling design is also suggested. User equipment can adopt one or several of these embodiments, and can change configurations in a semi-static manner based on operating conditions.
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公开(公告)号:US11039330B2
公开(公告)日:2021-06-15
申请号:US15743915
申请日:2016-02-27
Applicant: APPLE INC.
Abstract: A measurement gap enhancement method is disclosed for use in both synchronous and asynchronous networks. The measurement gap enhancement method employs a first measurement gap pattern, suitable for synchronous networks, including measurement gaps that are of shorter duration and available for more frequency measurements than in legacy implementations. The measurement gap enhancement method also employs a second measurement gap pattern, which also includes short duration measurement gaps, but is also characterized by flexible measurement gap repetition periods suited to asynchronous networks. The first and second measurement gap patterns are made known to an user equipment by way of novel information elements used during RRC connection reconfiguration by the enhanced NodeB base station. The measurement gap enhancement method enables the user equipment to maintain its radio frequency setting between measurements, particularly automatic gain control.
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公开(公告)号:US10856169B2
公开(公告)日:2020-12-01
申请号:US16324667
申请日:2017-06-29
Applicant: Apple Inc.
Abstract: New radio (NR), also known as fifth generation (5G) radio or fifth generation long term evolution (5G LTE)) uses a measurement gap that allows for measurement on different beams, multiple frame structure and inter-radio access technology measurement. For example, in measurement on the different beams, the UE (114) and eNB (304) beam sweep (i.e., change analog beam transmitter). The UE (114) can measure different beams from a fifth generation node B (gNB) and/or other RAN nodes. The measurement gap can be used for intrafrequency/interfrequency measurement when beam specific reference signals (BRSs) are not transmitted in the same subframe. A multiple frame structure can use the specific measurement configuration to utilize the beam resources efficiently. LTE and NR and other interRAT measurement can also use the measurement gap.
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公开(公告)号:US10812169B2
公开(公告)日:2020-10-20
申请号:US16408357
申请日:2019-05-09
Applicant: Apple Inc.
Inventor: Jie Cui , Candy Yiu , Rui Huang , Yang Tang , Shuang Tian , Youn Hyoung Heo
Abstract: Methods, systems, and storage media are described for user equipment (UE) measurements for new radio (NR). Other embodiments may be described and/or claimed.
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27.
公开(公告)号:US20200163086A1
公开(公告)日:2020-05-21
申请号:US16747087
申请日:2020-01-20
Applicant: Apple Inc.
Abstract: Embodiments of a user equipment (UE) for reporting of timing offset for dual connectivity enhancement are disclosed herein. The UE can include transceiver circuitry to connect to a master cell group via a master evolved node B (eNB) and a secondary cell group via a secondary eNB. Additionally, the UE can receive a first reference signal from the master eNB and a N second reference signal from a secondary eNB. Moreover, the UE can include processing circuitry to calculate a system frame number (SFN) and subframe timing difference (SSTD) based on the first reference signal and the second reference signal. Moreover, the UE can generate a measurement report having a synchronization indicator for dual connectivity based on the calculated SSTD. Subsequently, the UE can send the generated measurement report to the master eNB.
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公开(公告)号:US12167499B2
公开(公告)日:2024-12-10
申请号:US17289637
申请日:2019-10-28
Applicant: Apple Inc.
Abstract: Methods, systems, and storage media described herein may have the complexity to support simultaneous communications (e.g., transmission/reception to/from) with two or more cells. Therefore, before configuring a handover, the network needs to know if these methods, systems, and storage media can support simultaneous communication with multiple cells or not. Among other things, these methods, systems, and storage media can reduce the interruption time during handovers for when these methods, systems, and storage media are capable of such simultaneous communication.
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公开(公告)号:US12167429B2
公开(公告)日:2024-12-10
申请号:US17250652
申请日:2019-08-19
Applicant: Apple Inc.
Inventor: Yuhan Zhou , Jie Cui , Yang Tang , Hua Li , Rui Huang
IPC: H04W72/04 , H04W56/00 , H04W72/0446 , H04W72/0453 , H04W72/23 , H04W72/53
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:US12022501B2
公开(公告)日:2024-06-25
申请号:US17440552
申请日:2020-03-20
Applicant: Apple Inc.
IPC: H04W72/541 , H04L5/00 , H04W24/10 , H04W72/0446 , H04W72/23
CPC classification number: H04W72/541 , H04L5/0051 , H04W24/10 , H04W72/0446 , H04W72/23
Abstract: Systems, devices, and techniques for measuring and reporting cross-link interference (CLI) are described. A described technique includes determining, by a first wireless device, whether to perform a CLI measurement; determining a quantity of activated transmission configuration indicator (TCI) states associated with a second wireless device; performing the CLI measurement based on the quantity of activated TCI states; and transmitting a CLI report in response to the CLI measurement.
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