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公开(公告)号：US11295703B2
公开(公告)日：2022-04-05
申请号：US16926545
申请日：2020-07-10
Applicant: Apple Inc.
Inventor： Yang Li , Yingying Tang , Chaohao Wang , Wei H. Yao
IPC: G09G5/10
Abstract: An electronic device may be provided with an ambient light sensor, a display that displays image content, and control circuitry. The control circuitry may adjust a peak allowable brightness of the display based on an ambient light brightness and based on the image content being displayed. For example, the control circuitry may analyze frames of display data to determine an average pixel luminance level. Low average pixel luminance levels correspond to mostly dark image content, whereas high average pixel luminance levels correspond to mostly light image content. When an electronic device is outdoors and displaying mostly dark images with low average pixel luminance levels, the control circuitry may take advantage of the display's maximum achievable brightness to improve readability. When an electronic device is outdoors and displaying mostly light images with high average pixel luminance levels, the control circuitry may scale the maximum allowable brightness down to reduce power consumption.
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公开(公告)号：US11259313B2
公开(公告)日：2022-02-22
申请号：US16855851
申请日：2020-04-22
Applicant: Apple Inc.
Inventor： Yang Li , Wei Zeng , Zhu Ji , Beibei Wang , Jia Tang , Yuchul Kim , Haijing Hu , Dawei Zhang , Xiangying Yang , Sami M. Almalfouh , Johnson O. Sebeni , Wei Zhang , Tianyan Pu
Abstract: Apparatuses, systems, and methods for a wireless device to perform simultaneous uplink activity for multiple RATs in the same carrier using frequency division multiplexing. The wireless device may establish a first wireless link with a first base station according to a first radio access technology (RAT) and a second wireless link with a second base station according to a second RAT. The first base station may provide a first cell operating in a first system bandwidth and the second base station may provide a second cell operating in a second system bandwidth. The wireless device may determine whether the wireless device has uplink activity scheduled according to both the first RAT and the second RAT. If so, the wireless device may perform uplink activity for both the first RAT and the second RAT in the first system bandwidth using frequency division multiplexing.
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公开(公告)号：US11258570B2
公开(公告)日：2022-02-22
申请号：US16590742
申请日：2019-10-02
Applicant: Apple Inc.
Inventor： Yang Li , Yuchul Kim , Zhu Ji , Beibei Wang , Jia Tang , Wei Zeng , Dawei Zhang , Johnson O. Sebeni
Abstract: Apparatuses, systems, and methods for a user equipment device (UE) to perform a method using a status change of a timer associated with a connected mode discontinuous reception (CDRX) communication session with a base station to trigger a switch from using a first bandwidth part (BWP) to a second BWP as the active BWP for the CDRX communication session. The timer may be an on-duration timer, an inactivity timer, or a retransmission timer. The UE may also alter a monitoring schedule of a physical downlink control channel (PDCCH) in response to detecting the status change of the timer. The second BWP may have a wider or narrower bandwidth than the first BWP, depending on the type of timer and the type of status change.
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公开(公告)号：US20210204342A1
公开(公告)日：2021-07-01
申请号：US17201604
申请日：2021-03-15
Applicant: Apple Inc.
Inventor： Wei Zeng , Haijing Hu , Yuchul Kim , Dawei Zhang , Xiangying Yang , Zhu Ji , Yang Li , Beibei Wang , Jia Tang , Sarni M. Almalfouh , Johnson O. Sebeni , Wei Zhang , Tianyan Pu , Vijay Venkataraman , Christian W. Mucke
Abstract: Apparatuses, systems, and methods for a wireless device to perform substantially concurrent communications with a next generation network node and a legacy network node. The wireless device may be configured to stablish a first wireless link with a first cell according to a RAT, where the first cell operates in a first system bandwidth and establish a second wireless link with a second cell according to a RAT, where the second cell operates in a second system bandwidth. Further, the wireless device may be configured to perform uplink activity for both the first RAT and the second RAT by TDM uplink data for the first RAT and uplink data for the second RAT if uplink activity is scheduled according to both the first RAT and the second RAT.
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公开(公告)号：US11012139B2
公开(公告)日：2021-05-18
申请号：US16587242
申请日：2019-09-30
Applicant: Apple Inc.
Inventor： Jia Tang , Zhu Ji , Yang Li , Johnson O. Sebeni , Yu-Lin Wang , Sulabh Khandelwal , Beibei Wang , Zheng Zhang
IPC: H04B7/08 , H04L5/00 , H04W76/28 , H04B17/318 , H04B17/382 , H04W52/24
Abstract: Adaptive multiplexing and transmit/receive diversity. A wireless device may include multiple antennas. A first set of antennas may be used for communication. One or more trigger conditions may be determined, and additional antennas may be activated for measurement. Based on the measurement(s), a second set of antennas may be selected and used for communication.
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Patent Agency Ranking
公开(公告)号：US10856358B2
公开(公告)日：2020-12-01
申请号：US16295517
申请日：2019-03-07
Applicant: Apple Inc.
Inventor： Wei Zhang , Yuchul Kim , Junsung Lim , Haitong Sun , Wei Zeng , Sami M. Almalfouh , Yang Li , Zhu Ji , Dawei Zhang , Johnson O. Sebeni
Abstract: Apparatuses, systems, and methods for a base station to perform a method construct dynamic hierarchical sub-configurations of bandwidth parts (BWPs) for use in a connected mode discontinuous reception (CDRX) communication session with a user equipment (UE) device. The base station may configure a first BWP at a baseband frequency associated with the CDRX communication session as a default BWP, a second BWP with a wider bandwidth than the first BWP as a transmission BWP, and one or more third BWPs as resting BWPs. The transmission BWP and the one or more resting BWPs may be configured to periodically override the default BWP as the active BWP for a predetermined number of CDRX cycles. The transmission BWP may be utilized, when activated to perform data transmission by UE device, and the one or more resting BWPs may be utilized, when activated, for performing channel measurements.
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公开(公告)号：US10791474B2
公开(公告)日：2020-09-29
申请号：US16124651
申请日：2018-09-07
Applicant: Apple Inc.
Inventor： Beibei Wang , Zhu Ji , Johnson O. Sebeni , Jia Tang , Yang Li
Abstract: This disclosure relates to techniques for detecting a signal and powering off at least some receiver components if no signal is detected. A wireless device may take one or more measurements of one or more signals. The wireless device may determine, based on the measurements, whether a signal (e.g., a signal of a licensed assisted access cell) is anticipated during an upcoming time period, e.g., a subframe or portion of a subframe. If no signal is anticipated, the wireless device may power off at least some receiver functions.
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公开(公告)号：US20200220665A1
公开(公告)日：2020-07-09
申请号：US16735049
申请日：2020-01-06
Applicant: Apple Inc.
Inventor： Haitong Sun , Wei Zhang , Tianyan Pu , Dawei Zhang , Wei Zeng , Yuchul Kim , Yu Zhang , Wanping Zhang , Jia Tang , Yang Li
IPC: H04L1/18 , H04L5/00 , H04W72/04 , H04W72/12 , H04B7/0452
Abstract: Apparatuses, systems, and methods for performing uplink and downlink communication in cell edge scenarios with improved reliability. A wireless device may establish a radio resource control connection with a first cell. The wireless device may determine that a second cell strongly interferes with communication with the first cell. The wireless device may provide an indication that the second cell is a strongly interfering cell to the first cell. The first cell may coordinate with the second cell to transmit data to the wireless device, and to receive data from the wireless device, based at least in part on the indication that the second cell is a strongly interfering cell.
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公开(公告)号：US10680785B2
公开(公告)日：2020-06-09
申请号：US15941651
申请日：2018-03-30
Applicant: APPLE INC.
Inventor： Junsung Lim , Li Su , Johnson O. Sebeni , Yang Li , Young Jae Kim , Zhu Ji
Abstract: A method, device and integrated circuit for receiving signals in a narrow bandwidth range from a base station of a network, the narrow bandwidth range being a portion of an overall bandwidth range of the network and the signals comprising one or more of cell-specific reference signal (CRS) tones, determining whether a condition exists based on the one or more CRS tones, when the condition exists, extending the narrow bandwidth range to an extended narrow bandwidth range, the extended narrow bandwidth range including at least one further CRS tone than the narrow bandwidth range and monitoring the extended narrow bandwidth range to receive further signals comprising the at least one further CRS tone.
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公开(公告)号：US10660114B2
公开(公告)日：2020-05-19
申请号：US15969653
申请日：2018-05-02
Applicant: Apple Inc.
Inventor： Yang Li , Wei Zeng , Zhu Ji , Beibei Wang , Jia Tang , Yuchul Kim , Haijing Hu , Dawei Zhang , Xiangying Yang , Sami M. Almalfouh , Johnson O. Sebeni , Wei Zhang , Tianyan Pu
Abstract: Apparatuses, systems, and methods for a wireless device to perform simultaneous uplink activity for multiple RATs in the same carrier using frequency division multiplexing. The wireless device may establish a first wireless link with a first base station according to a first radio access technology (RAT) and a second wireless link with a second base station according to a second RAT. The first base station may provide a first cell operating in a first system bandwidth and the second base station may provide a second cell operating in a second system bandwidth. The wireless device may determine whether the wireless device has uplink activity scheduled according to both the first RAT and the second RAT. If so, the wireless device may perform uplink activity for both the first RAT and the second RAT in the first system bandwidth using frequency division multiplexing.
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