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公开(公告)号：US20210045183A1
公开(公告)日：2021-02-11
申请号：US17069385
申请日：2020-10-13
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：US10887006B2
公开(公告)日：2021-01-05
申请号：US16776793
申请日：2020-01-30
Applicant: Apple Inc.
Inventor： Yuchul Kim , Wei Zeng , Xiangying Yang , Dawei Zhang , Haitong Sun
Abstract: Embodiments are presented herein of apparatuses, systems, and methods for utilizing a flexible slot indicator in wireless communication. A base station (BS) may establish communication with a first user equipment device (UE). The BS may determine a transmission direction for each of a plurality of symbols included in one or more slots. The BS may transmit a slot format indicator (SFI) to the UE. The SFI may indicate the transmission direction for each of the plurality of symbols included in one or more slots. The BS and the UE may perform communication during the one or more slots according to the determined transmission direction.
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公开(公告)号：US20200351638A1
公开(公告)日：2020-11-05
申请号：US16763897
申请日：2017-11-17
Applicant: Apple Inc.
Inventor： Yuchul Kim , Christian W. Mucke , Haijing Hu , Dawei Zhang , Matthias Sauer , Johnson O. Sebeni
Abstract: A wireless communication device (UE) may provide information pertaining to one or more operating capabilities of the UE to LTE and 5G-NR networks. The UE may transmit information to an LTE base station directly, and to a 5G-NR base station directly, or indirectly via the LTE base station. The information may include preferred values corresponding to any number of different operating parameters associated with wireless communications or wireless communication capabilities of the UE in both LTE and 5G-NR networks, to inform and/or request the LTE and 5G-NR networks to make provisions based on the transmitted information for the wireless communications of the UE on those networks. The UE may thereby provide assistance information to LTE and 5G-NR networks in a multi-radio-access-technology dual-connectivity setting to request the respective networks to adjust certain operating capabilities of the UE in order to alleviate one or more operating issues that may be affecting the UE.
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公开(公告)号：US10779276B2
公开(公告)日：2020-09-15
申请号：US16357844
申请日：2019-03-19
Applicant: Apple Inc.
Inventor： Zhu Ji , Yang Li , Yuchul Kim , Johnson O. Sebeni , Sami M. Almalfouh , Wei Zeng , Dawei Zhang
Abstract: Apparatuses, systems, and methods to dynamically indicate preference for self-contained slots and slot duration by a user equipment device (UE) in communication with a base station (e.g., a gNB) using a 5G NR radio access technology. A UE may determine to send an indication to a gNB indicating a preference for self-contained slots and slot duration for downlink and/or uplink communications utilizing one or more of the physical downlink control channel (PDCCH), the physical downlink shared channel (PDSCH), and/or acknowledgement messaging (ACK/NACK) for downlink communications, and utilizing one or more of the physical uplink control channel (PUCCH), the PDCCH, and/or the physical uplink shared channel (PUSCH) for uplink communications. The configuration of self-contained slots and slot duration for uplink and/or downlink may be based on one or more of average packet size, average packet rate, traffic type and UE processing capabilities.
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公开(公告)号：US20200267699A1
公开(公告)日：2020-08-20
申请号：US16789356
申请日：2020-02-12
Applicant: Apple Inc.
Inventor： Wei Zeng , Yuchul Kim , Jia Tang , Dawei Zhang , Tianyan Pu , Wei Zhang , Haitong Sun
Abstract: This disclosure relates to performing detection of burst cellular communication in unlicensed spectrum. A wireless device may establish a cellular link with a cellular base station, which may provide a first cell deployed on an unlicensed frequency channel. The wireless device may receive a transmission from a second cell. The second cell may not be a serving cell of the wireless device. The transmission may be received on at least a portion of the unlicensed frequency channel. The wireless device may decode a channel occupancy time field of the transmission from the second cell. The wireless device may determine a channel occupancy time of the transmission from the second cell based at least in part on the channel occupancy time field.
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Patent Agency Ranking
公开(公告)号：US10743208B2
公开(公告)日：2020-08-11
申请号：US16295431
申请日：2019-03-07
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：US20200220685A1
公开(公告)日：2020-07-09
申请号：US16820408
申请日：2020-03-16
Applicant: Apple Inc.
Inventor： Joonsuk Kim , Yuchul Kim
Abstract: This disclosure relates to orthogonal frequency division multiple access (OFDMA) communication in wireless local area networks (WLANs). According to some embodiments, a downlink OFDMA frame may be transmitted. An uplink OFDMA frame including acknowledgements associated with the downlink OFDMA frame may be received. The uplink OFDMA frame may be processed, in some instances including determining which devices receiving the downlink OFDMA frame transmitted an acknowledgement associated with the downlink OFDMA frame in the uplink OFDMA frame.
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公开(公告)号：US20200187188A1
公开(公告)日：2020-06-11
申请号：US16788409
申请日：2020-02-12
Applicant: Apple Inc.
Inventor： Tarik Tabet , Haijing Hu , Dawei Zhang , Yuchul Kim
Abstract: This disclosure relates to techniques for supporting asymmetric uplink and downlink bandwidth allocations for a wireless device, and for dynamically modifying the bandwidth allocations for a wireless device, in a wireless communication system. A cellular communication link may be established between a base station and a wireless device. The base station may determine an uplink bandwidth allocation and a downlink bandwidth allocation for the wireless device. The uplink bandwidth allocation and the downlink bandwidth allocation may be selected based on different criteria and may include different amounts of bandwidth. Indications of the uplink bandwidth allocation and the downlink bandwidth allocation may be provided to the wireless device. The base station and wireless device may communicate according to the uplink bandwidth allocation and the downlink bandwidth allocation.
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公开(公告)号：US20200169319A1
公开(公告)日：2020-05-28
申请号：US16776793
申请日：2020-01-30
Applicant: Apple Inc.
Inventor： Yuchul Kim , Wei Zeng , Xiangying Yang , Dawei Zhang , Haitong Sun
Abstract: Embodiments are presented herein of apparatuses, systems, and methods for utilizing a flexible slot indicator in wireless communication. A base station (BS) may establish communication with a first user equipment device (UE). The BS may determine a transmission direction for each of a plurality of symbols included in one or more slots. The BS may transmit a slot format indicator (SFI) to the UE. The SFI may indicate the transmission direction for each of the plurality of symbols included in one or more slots. The BS and the UE may perform communication during the one or more slots according to the determined transmission direction.
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公开(公告)号：US10666485B2
公开(公告)日：2020-05-26
申请号：US15964156
申请日：2018-04-27
Applicant: Apple Inc.
Inventor： Wei Zeng , Yuchul Kim , Dawei Zhang
Abstract: This disclosure relates to providing synchronization signal block index signaling in a cellular communication system. A cellular base station may provide synchronization signals according to a periodic pattern, including transmitting one or more synchronization signal bursts each including one or more synchronization signal blocks. A wireless device may detect a synchronization signal block. The wireless device may determine a synchronization signal block index of the detected synchronization signal block. The wireless device may provide an indication of the synchronization signal block index of the detected synchronization signal block to the cellular base station.
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