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公开(公告)号：US11638290B2
公开(公告)日：2023-04-25
申请号：US17024215
申请日：2020-09-17
Applicant: Apple Inc.
Inventor： Yushu Zhang , Haitong Sun , Wei Zeng , Hong He , Yuchul Kim , Dawei Zhang , Haijing Hu , Yakun Sun
IPC: H04W72/23 , H04L1/00 , H04W72/0453
Abstract: Apparatuses, systems, and methods for providing downlink control for multi-TRP transmission. A cellular base station may provide a downlink control information transmission to a wireless device scheduling downlink transmissions to the wireless device from multiple transmission reception points. The downlink control information may include information that can be used by the wireless device to determine any or all of physical resource block bundling sizes, frequency domain resource allocations, modulation and coding schemes, redundancy versions, phase tracking reference signal configurations, and any of various other possible types of configuration information for the downlink transmissions. The wireless device may receive the downlink transmissions from the plurality of transmission reception points in accordance with the downlink control information.
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公开(公告)号：US20220393838A1
公开(公告)日：2022-12-08
申请号：US17885225
申请日：2022-08-10
Applicant: Apple Inc.
Inventor： Yushu Zhang , Yakun Sun , Fangli Xu , Yuqin Chen , Dawei Zhang , Haijing Hu , Chunhai Yao , Yuchul Kim , Hong He , Wei Zeng , Haitong Sun
Abstract: A wireless user equipment (UE) may employ any of various mechanisms for reporting signal quality measurements to a wireless network. The UE may impose a time delay between measurement and reporting, based on a delay parameter K. The UE may average measurements obtained at different measurement instances. The UE may employ any of various schemes for prioritizing transmission of one type of report over another, when temporal collisions occur between different types of report. The UE may employ a differential report that includes a state for indicating that a beam is not workable. The UE may employ a beam index that includes a state for indicating an invalid beam. A base station may receive a signal quality report and determine workability of a beam, e.g., by triggering a report of channel state information.
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公开(公告)号：US20220322247A1
公开(公告)日：2022-10-06
申请号：US17642207
申请日：2019-09-12
Applicant: Apple Inc.
Inventor： Haitong Sun , Chunhai Yao , Dawei Zhang , Hong He , Rohit U Nabar , Wei Zeng , Yakun Sun , Yuchul Kim , Yushu Zhang
IPC: H04W52/36 , H04W52/42 , H04B7/06 , H04B7/0404 , H04B17/318
Abstract: Apparatuses, systems, and methods for a user equipment device (UE) to perform methods for triggering a change in beam configuration based on UL beam conditions. The UE may detect an unsafe UL beam condition for an UL beam based, at least in part, on an MPE level being exceeded by the UL beam. In response to the detection, remedial actions that to alleviate the unsafe UL beam condition may be performed. The remedial actions may prioritize UL beam quality over DL beam quality and may include reducing a transmit power of the UL beam based on an MPR, triggering an intra-panel antenna switch to a candidate UL beam that satisfies one or more conditions for intra-panel beam switching, triggering an inter-panel antenna switch to a candidate UL beam that satisfies one or more conditions for intra-panel beam switching, and/or signaling a beam failure to a network serving the UE.
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公开(公告)号：US20220312400A1
公开(公告)日：2022-09-29
申请号：US17437409
申请日：2020-09-15
Applicant: Apple Inc.
Inventor： Yushu Zhang , Dawei Zhang , Fangli Xu , Haijing Hu , Haitong Sun , Huaning NIU , Jie Cui , Manasa Raghavan , Wei Zeng , Weidong Yang , Yakun Sun , Yang Tang
IPC: H04W72/04
Abstract: Apparatuses, systems, and methods for beam indication latency reduction via a symbol level beam sweeping configuration. A base station may receive, from a user equipment device (UE), a report associated with symbol level beam sweeping. The base station may determine a symbol level beam sweeping configuration. The symbol level beam sweeping configuration may be based, at least in part, on the report. The base station may transmit, to the UE, the symbol level beam sweeping configuration.
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公开(公告)号：US20220103238A1
公开(公告)日：2022-03-31
申请号：US17548100
申请日：2021-12-10
Applicant: Apple Inc.
Inventor： Yakun Sun , Anatoliy S. Ioffe , Ehsan Haghani , Rohit U. Nabar
Abstract: Systems and methods related to partial beam correspondence may be used to address potential limitations of beamforming wireless networks. A user equipment electronic device and/or wireless network identifies a subset of available transmitter beams for the user equipment electronic device that are indicated as similar to a downlink reference signal received at the user equipment electronic device from a wireless network node. The user equipment electronic device sweeps the subset of available transmitter beams for communication with the wireless network node and uses a best beam from the sweep to communicate with the wireless network node.
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Patent Agency Ranking
公开(公告)号：US10980035B2
公开(公告)日：2021-04-13
申请号：US16701045
申请日：2019-12-02
Applicant: Apple Inc.
Inventor： Anatoliy S. Ioffe , Ehsan Haghani , Yakun Sun , Rohit U. Nabar , Rodney A. Gomez Angulo
Abstract: An electronic device may be provided with wireless circuitry and control circuitry. The wireless circuitry may communicate using a 5G New Radio (NR) protocol. The wireless circuitry may have multiple bandwidth part configurations. The control circuitry may place the wireless circuitry in a first bandwidth part configuration where a first bandwidth part of a first component carrier is active and a second bandwidth part of a second component carrier is inactive. The control circuitry may switch the wireless circuitry from the first bandwidth part configuration to a second bandwidth part configuration in which the first bandwidth part is inactive and the second bandwidth part is active. The first and second component carriers may be intra-band contiguous, intra-band non-contiguous, or inter-band. The control circuitry may switch the wireless circuitry into other configurations for covering other bandwidth parts of any desired component carriers in any desired bands.
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公开(公告)号：US20210100056A1
公开(公告)日：2021-04-01
申请号：US16931254
申请日：2020-07-16
Applicant: Apple Inc.
Inventor： Yushu Zhang , Dawei Zhang , Haijing Hu , Haitong Sun , Hong He , Wei Zeng , Yakun Sun , Yuchul Kim
Abstract: Embodiments are presented herein of apparatuses, systems, and methods for a user equipment device (UE) to transmit an indication of a link failure on a secondary cell. The indication may be transmitted on resources selected based on one or more conditions. One or more priority rules may be used to resolve collisions. The UE may further make an assumption of a beam or beams to use for communications with the secondary cell following the link failure and prior to receiving an indication from the network of a selected beam.
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公开(公告)号：US20210100039A1
公开(公告)日：2021-04-01
申请号：US17023317
申请日：2020-09-16
Applicant: Apple Inc.
Inventor： Yushu Zhang , Wei Zeng , Yuqin Chen , Dawei Zhang , Fangli Xu , Haijing Hu , Haitong Sun , Hong He , Yakun Sun , Yuchul Kim
IPC: H04W74/08
Abstract: A device may wirelessly transmit a physical RACH, and a first message on a physical uplink shared channel (PUSCH), in a first step of a 2-step random access channel (RACH) procedure. The device may receive a second message on a physical downlink shared channel in response to successful detection of the first message, in a second step of the 2-step RACH procedure. When detection of the first message is unsuccessful, the device may be instructed to fall back to a 4-step RACH procedure. The device may be configured with one or more first message transmit opportunities (PO), one of which may include one or more PUSCH resource units (PRUs). Some of the communication parameters of the device may be configured to be common for each PO, while other communication parameters may be configured per PRU. Respective new Radio Network Temporary ID values may be defined for the first message and second message.
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公开(公告)号：US10720978B1
公开(公告)日：2020-07-21
申请号：US16573507
申请日：2019-09-17
Applicant: Apple Inc.
Inventor： Yakun Sun , Rohit U. Nabar , Jennifer M. Edwards , Simone Paulotto , Mithat C. Dogan , Harish Rajagopalan
IPC: H04B7/06 , H04B7/0426 , H04B7/0417 , H04B17/336 , H04B17/318
Abstract: Methods and systems include reducing or mitigating interference by sweeping multiple beams used to communicate between a wireless network base station and an electronic device. The multiple beams include beams having different sidelobe directions. The electronic device selects, using a processor of the electronic device, a beam from the multiple beams. Furthermore, selecting the beam includes selecting the beam having a lowest level of interference of the multiple beams due to a sidelobe direction of the beam. The electronic device then communicates with the wireless network base station using the selected beam.
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公开(公告)号：US20200178261A1
公开(公告)日：2020-06-04
申请号：US16701045
申请日：2019-12-02
Applicant: Apple Inc.
Inventor： Anatoliy S. Ioffe , Ehsan Haghani , Yakun Sun , Rohit U. Nabar , Rodney A. Gomez Angulo
Abstract: An electronic device may be provided with wireless circuitry and control circuitry. The wireless circuitry may communicate using a 5G New Radio (NR) protocol. The wireless circuitry may have multiple bandwidth part configurations. The control circuitry may place the wireless circuitry in a first bandwidth part configuration where a first bandwidth part of a first component carrier is active and a second bandwidth part of a second component carrier is inactive. The control circuitry may switch the wireless circuitry from the first bandwidth part configuration to a second bandwidth part configuration in which the first bandwidth part is inactive and the second bandwidth part is active. The first and second component carriers may be intra-band contiguous, intra-band non-contiguous, or inter-band. The control circuitry may switch the wireless circuitry into other configurations for covering other bandwidth parts of any desired component carriers in any desired bands.
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