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公开(公告)号：US11076424B2
公开(公告)日：2021-07-27
申请号：US16489722
申请日：2017-09-12
Applicant: Apple Inc.
Inventor： Markus Dominik Mueck , Biljana Badic , Zhibin Yu
Abstract: Devices and methods of transmit opportunity (TXOP) with continued listen-before-talk (LBT) are generally described. A user equipment (UE) can be configured to perform a single LBT during an LBT scanning instance, to detect availability of an unlicensed wireless channel. Upon detecting availability of the channel, data is encoded for transmission during a TXOP with a TXOP duration. A pause in the transmission of the data is initiated upon expiration of a first time interval of the TXOP. A continuous LBT procedure is performed upon expiration of the pause, to determine a plurality of sensing metrics indicating occupancy of the unlicensed wireless channel. The transmission of the data is resumed during the TXOP for a second time interval, when at least one sensing metric of the plurality of sensing metrics is below a threshold.
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公开(公告)号：US11064567B2
公开(公告)日：2021-07-13
申请号：US16422065
申请日：2019-05-24
Applicant: Apple Inc.
Abstract: Embodiments of a User Equipment (UE), Next Generation Node-B (gNB) and methods of communication are generally described herein. The UE may receive configuration information to configure the UE with a plurality of channel state information reference signal (CSI-RS) resource sets. One of the CSI-RS resource sets may be allocated for beam failure detection (BFD). The UE may determine, based on a sub-carrier spacing (SCS) of a bandwidth part (BWP), a frequency density of the CSI-RS resources in the BWP in terms of a number of resource elements (REs) per resource block (RB). The UE may determine, based on the frequency density of the CSI-RS resources, an evaluation period for CSI-RS based BFD, wherein the evaluation period is longer for higher frequency densities and the evaluation period is shorter for lower frequency densities.
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公开(公告)号：US11026233B2
公开(公告)日：2021-06-01
申请号：US16447584
申请日：2019-06-20
Applicant: Apple Inc.
Inventor： Yushu Zhang , Zhibin Yu , Alexei Vladimirovich Davydov , Gang Xiong , Guotong Wang
Abstract: A user equipment (UE) can include processing circuitry coupled to memory. To configure the UE for New Radio (NR) communications, the processing circuitry is to decode a plurality of CSI-RSs received from a base station on a corresponding plurality of beams. DCI received via a PDCCH is decoded, the DCI activating reporting of beam emissions information associated with the plurality of beams. A CSI report is encoded with the beam emissions information for transmission to the base station, the beam emissions information comprising a flag for each beam of the plurality of beams indicating whether the beam can be used for uplink beam indication. Configuration signaling is decoded with the uplink beam indication, the uplink beam indication based on the beam emissions information and including a CRI of a selected beam of the plurality of beams. Data is encoded for transmission via an uplink channel using the selected beam.
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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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35.发明授权公开(公告)号：US12133101B2
公开(公告)日：2024-10-29
申请号：US17599666
申请日：2020-03-30
Applicant: Apple Inc.
IPC: H04W24/08 , H04L5/00 , H04W24/10 , H04W74/08 , H04W74/0808
CPC classification number: H04W24/08 , H04L5/0048 , H04W24/10 , H04W74/0808
Abstract: An approach is described for a user equipment (UE), wherein the UE includes radio front end circuitry and processor circuitry coupled to the radio front end circuitry. The processor circuitry receives a reference signal from a source device via a radio link, wherein the reference signal is one of the synchronization signal block (SSB) signal or channel state information reference signal (CSI-RS). The processor circuitry measures a quality of the reference signal, and measures an evaluation time of the reference signal. The processor circuitry determines a first indicator of the radio link based on the quality of the reference signal, and determine a second indicator of the radio link based on the evaluation time of the reference signal. The processor circuitry then determines a status of a connection of the radio link based on the first indicator and the second indicator of the radio link, and generate a message based the status of the connection. The radio front end circuitry then transmits the message to the source device.
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Patent Agency Ranking
公开(公告)号：US12058720B2
公开(公告)日：2024-08-06
申请号：US17593079
申请日：2020-05-01
Applicant: APPLE INC.
Inventor： Zhibin Yu , Yushu Zhang
IPC: H04W4/00 , H04L5/00 , H04W72/044 , H04W72/23 , H04W72/542
CPC classification number: H04W72/542 , H04L5/0051 , H04W72/046 , H04W72/23
Abstract: Systems and methods for improving the robustness of a DCI triggered beam update in 5G NR are disclosed herein. A g Node B (gNB) may associate a reference signal to a beam pattern (or beam configuration) and prepare Downlink Control Information (DCI) of a Physical Downlink Control Channel (PDCCH) that includes aperiodic Channel-State Information Reference Signal (AP CSI-RS) information indicating the beam pattern. A user equipment (UE) may decode the DCI, extract the AP CSI-RS information, update the beam pattern of a reference signal based on the AP CSI-RS information, and generate an uplink (UL) feedback message indicating that the PDCCH was successfully decoded by the UE. The gNB may then decode the uplink (UL) feedback message and, in response, update a receive (RX) beam of the gNB to correspond to the beam pattern associated to the reference signal.
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37.发明授权公开(公告)号：US11656317B2
公开(公告)日：2023-05-23
申请号：US17749241
申请日：2022-05-20
Applicant: Apple Inc.
Inventor： Seunghee Han , Alexey Khoryaev , Yang Tang , Zhibin Yu , Shafi Bashar
CPC classification number: G01S5/10 , G01S1/20 , G01S5/0236
Abstract: Techniques for observed time difference of arrival (OTDOA) positioning based on heterogeneous reference signals (RSs) are discussed. One example apparatus configured to be employed within a user equipment (UE) comprises receiver circuitry, a processor, and transmitter circuitry. The receiver circuitry can receive, from each of a plurality of evolved Node Bs (eNBs), one or more RSs of each of a plurality of distinct types of RSs. The processor can determine, for each of the eNBs, a time of arrival (TOA) of the one or more RSs of each of the plurality of distinct types of RSs; and compute, for each of the eNBs, a reference signal time difference (RSTD) based at least in part on the TOAs of the one or more RSs of each of the plurality of distinct types of RSs. The transmitter circuitry can transmit the RSTD computed for each of the eNBs.
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公开(公告)号：US20220182867A1
公开(公告)日：2022-06-09
申请号：US17440675
申请日：2020-05-01
Applicant: Apple Inc.
IPC: H04W24/10
Abstract: A user equipment (UE) device is configured for performing a signal measurement for wireless communication in a new radio (NR) network. The UE is configured to determine a frequency range (FR) of a serving cell configured to send a signal that is measured by the UE using a signal measurement. The UE configures a measurement gap (MG) pattern to perform the signal measurement. Configuring the measurement gap includes determining that the frequency range of the serving cell includes frequencies of a second frequency range (FR2), determining that a measurement object (MO) configuration for the FR2 is available, setting a measurement gap repetition periodicity (MGRP) value for the signal measurement, and setting a measurement gap length (MGL) value for the signal measurement. The UE performs a signal measurement using the MGRP value and the MGL value.
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公开(公告)号：US20210391894A1
公开(公告)日：2021-12-16
申请号：US17283212
申请日：2019-09-27
Applicant: Apple Inc.
Inventor： Zhibin Yu , Huiqiang Zhou
Abstract: A communication device includes one or more processors, configured to receive data representing each of at least a first waveform and a second waveform from a common control channel and data representing a third waveform from a data channel associated with the control channel; determine from the received data, channel state information for each of the first waveform and the second waveform; determine a Doppler shift between the channel state information for the first waveform and the channel state information for the second waveform; compare the determined Doppler shift to a predetermined Doppler shift threshold; and if the determined Doppler shift is less than the predetermined Doppler shift threshold, adjust the third received waveform by the determined Doppler shift and decode the adjusted third received waveform.
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公开(公告)号：US20210274465A1
公开(公告)日：2021-09-02
申请号：US17267782
申请日：2019-08-08
Applicant: Apple Inc.
Abstract: Systems, apparatuses, methods, and computer-readable media are provided for user equipment (UE) idle mode operations. In embodiments, a UE wakes up more than once during a Discontinuous Reception (DRX) cycle. Inter-frequency measurement requirements may be relaxed based on DRX cycle length. Some embodiments include radiofrequency (RF) circuitry warm-up overhead reduction by on-duration separation with RF circuitry switching pattern adaption. Some embodiments include and RF circuitry warm-up overhead reduction by adaptive synchronization signal block (SSB) reference symbol down-selection. Other embodiments may be described and/or claimed.
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