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公开(公告)号：US10973053B2
公开(公告)日：2021-04-06
申请号：US16373910
申请日：2019-04-03
Applicant: Apple Inc.
Inventor： Tianyan Pu , Wei Zhang , Wei Zeng , Haitong Sun , Ping Wang , Dawei Zhang , Sami M. Almalfouh , Johnson O. Sebeni , Li Su
Abstract: An enhanced listen-before-talk procedure may be performed by a device for efficiently accessing and utilizing available resources. The procedure may include specifying input parameter values pertaining to intended wireless communications of the device, adjusting output parameter values based on the input parameter values and an access history of the device, and determining whether to access at least a portion of the wireless communication resources to conduct the wireless communications, based at least on the output parameter values. The output parameter values may pertain to wireless communication resources accessible to the device, and the access history may keep track of wireless communication resource accesses previously made by the device. Input parameter values may include requested channel occupation time, requested frequency resource, requested transmission power, and/or priority and/or urgency of requested transmission, while output parameter values may include energy detection threshold, contention window size, and/or extended clear channel assessment bypass.
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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：US20200295854A1
公开(公告)日：2020-09-17
申请号：US16813264
申请日：2020-03-09
Applicant: Apple Inc.
Inventor： Shiva Krishna NARRA , Madhukar K. Shanbhag , Pengkai Zhao , Sami M. Almalfouh , Sanjeevi Balasubramanian , Sriram Subramanian , Wei Zhang , Yi Su
Abstract: A method performed by a user equipment (UE) configured with a plurality of antenna panels. Each antenna panel is configured to beamform over a millimeter wave (mmWave) frequency band. The method includes identifying a predetermined condition corresponding to a first antenna panel of the plurality of antenna panels, selecting a second antenna panel of the plurality of antenna panels based on identifying the predetermined condition corresponding to the first antenna panel and transmitting a beam via the second antenna panel based on the selection.
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公开(公告)号：US10764827B2
公开(公告)日：2020-09-01
申请号：US16135705
申请日：2018-09-19
Applicant: APPLE INC.
Inventor： Srinivasan Nimmala , Srirang A. Lovlekar , Venkateswara Rao Manepalli , Sami M. Almalfouh , Li Su , Jianxiong Shi , Daniel D. Schucker , Ajoy K. Singh , Vijay Venkataraman
Abstract: A device, system, and method uses a high power mode for a cellular connection. The method is performed at a device that is configured to establish a network connection to a network. The method includes detecting a number of at least one event that has occurred over a time period, the at least one event associated with operations used through the network connection, the at least one event indicative of a power to perform the operations that is greater than a predetermined power. When the number is at least a predetermined threshold, the method includes identifying the network connection as being in a high power state. The method includes activating settings when the network connection is in the high power state, the settings reducing a usage of the operations over the network connection.
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公开(公告)号：US10728850B2
公开(公告)日：2020-07-28
申请号：US16135705
申请日：2018-09-19
Applicant: APPLE INC.
Inventor： Srinivasan Nimmala , Srirang A. Lovlekar , Venkateswara Rao Manepalli , Sami M. Almalfouh , Li Su , Jianxiong Shi , Daniel D. Schucker , Ajoy K. Singh , Vijay Venkataraman
Abstract: A device, system, and method uses a high power mode for a cellular connection. The method is performed at a device that is configured to establish a network connection to a network. The method includes detecting a number of at least one event that has occurred over a time period, the at least one event associated with operations used through the network connection, the at least one event indicative of a power to perform the operations that is greater than a predetermined power. When the number is at least a predetermined threshold, the method includes identifying the network connection as being in a high power state. The method includes activating settings when the network connection is in the high power state, the settings reducing a usage of the operations over the network connection.
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Patent Agency Ranking
公开(公告)号：US20200178313A1
公开(公告)日：2020-06-04
申请号：US16784321
申请日：2020-02-07
Applicant: Apple Inc.
Inventor： Li Su , Sami M. Almalfouh , Venkateswara Rao Manepalli
Abstract: Mechanisms enabling link-budget-limited (LBL) devices to more effectively perform random access may include: (1) broadcasting a Physical Random Access Channel (PRACH) configuration index (PCI) reserved for LBL devices; (2) configuring LBL devices to use a PCI that is offset from the conventional PCI of current cell; (3) configuring LBL devices to transmit PRACH messages using an alternative set of subframes, different from conventionally-defined subframe set; (4) configuring LBL devices to transmit PRACH messages on odd frames when the conventional PRACH configuration specifies even frames; (5) configuring LBL devices to generate and use extra PRACH preambles that are not used by non-LBL devices; (6) configuring LBL devices to use group B preambles while non-LBL devices are configured to use group A preambles; and (7) boosting power of a random access response message after an Nth random access failure with preamble conforming to an LBL-reserved pattern of preambles.
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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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公开(公告)号：US20200154508A1
公开(公告)日：2020-05-14
申请号：US16744651
申请日：2020-01-16
Applicant: Apple Inc.
Inventor： Li Su , Sami M. Almalfouh
Abstract: This disclosure relates to techniques for fast switching between control channels during a radio resource control connection in a wireless communication system. A cellular base station and a wireless device may establish a radio resource control connection. The base station may provide a physical layer indication to the wireless device of a control channel to monitor for scheduling information. The base station may provide scheduling information to the wireless device on the indicated control channel. The wireless device may monitor the indicated control channel for scheduling information based at least in part on the physical layer indication and may receive the scheduling information provided by the base station on the indicated control channel.
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公开(公告)号：US10568066B2
公开(公告)日：2020-02-18
申请号：US16378605
申请日：2019-04-09
Applicant: Apple Inc.
Inventor： Li Su , Sami M. Almalfouh , Venkateswara Rao Manepalli , Srinivas Burugupalli , Srinivasan Nimmala , Vijay Kumar Ramamurthi , Stephan V. Schell
Abstract: Various mechanisms for paging link-budget-limited (LBL) devices are disclosed, including: (1) transmitting paging message with non-conventional paging identifier; (2) transmitting paging message(s) with increased power; (3) repeating transmission of paging message to support combining at receiver. Various mechanisms for UE device to signal LBL status are disclosed, including, transmitting status flag or special value of DRX cycle to network node as part of tracking area update and/or attach request. The network node informs a base station of the device's LBL status as part of a paging message. (The network node may, e.g., assign an S-RNTI to the LBL device from a reserved subset of S-RNTI space.) The base station invokes a paging enhancement mechanism when paging an LBL device. Alternatively, the base station may page UE devices without knowledge of LBL status, e.g., by counting paging attempts for a given UE, and boosting power after the Nth paging attempt.
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100.发明申请公开(公告)号：US20190313350A1
公开(公告)日：2019-10-10
申请号：US16373504
申请日：2019-04-02
Applicant: Apple Inc.
Inventor： Wei Zhang , Wei Zeng , Tianyan Pu , Haitong Sun , Jia Tang , Dawei Zhang , Sami M. Almalfouh , Zhu Ji , Johnson O. Sebeni
Abstract: Apparatuses, systems, and methods for performing timing synchronization between a base station and a user equipment device within an unlicensed spectrum band. In some scenarios, beamforming tracking may also be performed. Upon determining that a transmission medium within the unlicensed spectrum band is available for transmission, a base station may transmit a plurality of synchronization signal blocks (SSBs), or a plurality of copies of one SSB, with associated remaining minimum system information (RMSI) blocks, within a single time instance within a SSB burst window. The SSBs may be transmitted at different frequency positions and according to distinct beamforming configurations. The SSBs and RMSI blocks may be configured such that a receiving user equipment device may determine the time-domain, and optionally the frequency-domain, position of the SSB and RMSI within the SSB burst window, to allow timing synchronization and optionally beamforming tracking.
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