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公开(公告)号：US11284428B2
公开(公告)日：2022-03-22
申请号：US16499178
申请日：2018-08-10
Applicant: Apple Inc.
Inventor： Junsung Lim , Wei Zhang , Sami M. Almalfouh , Johnson O. Sebeni , Yuchul Kim , Wei Zeng , Haitong Sun , Pengkai Zhao , Ping Wang , Dawei Zhang , Fangli Xu , Yuqin Chen , Haijing Hu
Abstract: A device may monitor a first search space (SS) corresponding to an active first component carrier (CC), and detect first control information (CI) that identifies an inactive second CC. In response to receiving the first CI, the device may activate the inactive second CC to make it an active second CC. The device may also set up a second SS corresponding to the active second CC, and may monitor the second SS to schedule the active second CC and receive a physical data channel. The first CI may also include additional scheduling information and a start time for reception of the physical data channel. The device may operate in a first bandwidth part (BWP) according to a first communication configuration associated with the first bandwidth part, and may switch to operating in a second BWP and to operating according to a second communication configuration associated with the second BWP.
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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：US11228935B2
公开(公告)日：2022-01-18
申请号：US16984465
申请日：2020-08-04
Applicant: Apple Inc.
Inventor： Junsung Lim , Yuchul Kim , Wei Zeng , Wei Zhang , Johnson O. Sebeni , Haitong Sun , Dawei Zhang
Abstract: A base station and mobile device (UE) may coordinate transmission of reference signals and reception of corresponding channel state information (CSI) reports. If a periodic reference signal is scheduled for transmission outside the on-duration period of the UE, even if the reference signal corresponds to a periodic CSI report scheduled to be transmitted by the UE during the on-duration period, the base station may not transmit the periodic reference signal, thereby allowing the UE not to prematurely exit a low-power state. The base station may instead transmit an aperiodic reference signal at a specified point in time later than the scheduled transmission of the periodic reference signal. The UE may receive the aperiodic reference signal and either transmit the periodic CSI report or an aperiodic CSI report in response, depending on how close to the start of the on-duration period the transmission of the periodic CSI report is scheduled.
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公开(公告)号：US20210376991A1
公开(公告)日：2021-12-02
申请号：US17397617
申请日：2021-08-09
Applicant: Apple Inc.
Inventor： Yuchul Kim , Wei Zeng , Xiangying Yang , Haijing Hu , Dawei Zhang
Abstract: Techniques are disclosed relating to downlink control information for wireless communications. In some embodiments, the downlink control information includes code block group information that indicates which code block groups are transmitted and soft buffer handling information that indicates whether to flush previously-determined soft bits that correspond to one or more code block groups.
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Patent Agency Ranking
公开(公告)号：US20210352582A1
公开(公告)日：2021-11-11
申请号：US16480784
申请日：2018-08-10
Applicant: Apple Inc.
Inventor： Wei Zeng , Dawei Zhang , Haitong Sun , Wei Zhang , Tianyan Pu , Yuchul Kim , Yuqin Chen , Farouk Belghoul , Haijing Hu , Fangli Xu , Sami M. Almalfouh
Abstract: This disclosure relates to using a wake up signal in conjunction with cellular communication in unlicensed spectrum. A cellular base station may provide a wake up signal on an unlicensed frequency channel after successful completion of a listen-before-talk procedure. The wake up signal may include a preamble configured for coherent detection, and information indicating channel occupancy time for a cellular communication by the cellular base station and a cell identifier for the cellular base station. A wireless device may monitor the unlicensed frequency channel for a wake up signal, and may determine whether to monitor the unlicensed frequency channel for control channel signaling based on whether a wake up signal is received, and potentially also based on the contents of the wake up signal if a wake up signal is received.
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公开(公告)号：US11147123B2
公开(公告)日：2021-10-12
申请号：US16575218
申请日：2019-09-18
Applicant: Apple Inc.
Inventor： Pengkai Zhao , Dawei Zhang , Fangli Xu , Haijing Hu , Haitong Sun , Sami M. Almalfouh , Wanping Zhang , Wei Zeng , Wei Zhang , Yuqin Chen
Abstract: Apparatuses, systems, and methods for a wireless device to perform methods for determining resources for scheduling side-link communications. The resources may be semi-persistent and/or dynamic resources. A user equipment device (UE) may determine a resource map for use in scheduling semi-persistent resources for side-link communications with at least one wireless node. The UE may transmit a resource map request message indicating preferred resource blocks, where each resource block may be defined by a time and a frequency. The UE may receive a confirmation message that may include a report regarding a set of resource blocks. The set of resource blocks may be from the preferred resource blocks included in the resource map request message. The UE may determine, based, at least in part, on the confirmation message, resource blocks to be used for the side-link communications and initiate the side-link communications using the determined resource blocks.
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公开(公告)号：US20210297114A1
公开(公告)日：2021-09-23
申请号：US17175231
申请日：2021-02-12
Applicant: Apple Inc.
Inventor： Yushu Zhang , Haitong Sun , Wei Zeng , Dawei Zhang , Yuchul Kim , Hong He , Weidong Yang , Chunxuan Ye , Chunhai Yao , Oghenekome Oteri , Wei Zhang , Jia Tang , Tianyan Pu , Pengkai Zhao
Abstract: In an example method, a user equipment (UE) device determines one or more component carriers available to the UE device for at least one of transmitting or receiving data over a wireless network. The UE device transmits, to the wireless network, for each component carrier, an indication whether the component carrier supports at least one of transmitting or receiving data according to a multi-transmission and receiving points (multi-TRP) communication protocol.
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219.发明授权公开(公告)号：US11102738B2
公开(公告)日：2021-08-24
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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公开(公告)号：US11096079B2
公开(公告)日：2021-08-17
申请号：US16553361
申请日：2019-08-28
Applicant: Apple Inc.
Inventor： Wei Zhang , Haitong Sun , Fangli Xu , Pengkai Zhao , Junsung Lim , Wei Zeng , Haijing Hu , Sami M. Almalfouh , Dawei Zhang , Johnson O. Sebeni
Abstract: This disclosure relates to performing cell measurements using configured reference signals while in an inactive state in a cellular communication system. A wireless device may receive an indication of reference signal resources configured for use by the wireless device in the inactive state from a cellular base station that provides a serving cell to the wireless device. The reference signal resources may include channel state information reference signal resources that are aligned in time and/or frequency with a control resource set provided for a wakeup occasion of the wireless device while in the inactive state. The wireless device may perform cell measurements using the indicated reference signal resources while in the inactive state.
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