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公开(公告)号：US20200252989A1
公开(公告)日：2020-08-06
申请号：US16739952
申请日：2020-01-10
Applicant: Apple Inc.
Inventor： Yuqin Chen , Murtaza A. Shikari , Sree Ram Kodali , Srirang A. Lovlekar , Sethuraman Gurumoorthy , Haitong Sun , Fangli Xu , Haijing Hu , Dawei Zhang , Srinivasan Nimmala , Longda Xing , Xu Ou
IPC: H04W76/18 , H04W4/40 , H04L5/00 , H04L1/00 , H04W76/27 , H04W24/08 , H04W76/19 , H04W76/25 , H04W80/08 , H04W92/18
Abstract: Embodiments are presented herein of apparatuses, systems, and methods for performing unicast sidelink access stratum level connection maintenance. A first wireless device and a second wireless device may establish a unicast sidelink wireless connection. One or both of the first wireless device and the second wireless device may perform access stratum level connection maintenance on the unicast sidelink wireless connection. This may include performing any or all of radio link monitoring, radio resource management, or physical layer based link quality detection. The access stratum and the non-access stratum of each device may also communicate with each other regarding either or both of link quality or link status of the unicast sidelink wireless connection.
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公开(公告)号：US20200252949A1
公开(公告)日：2020-08-06
申请号：US16739916
申请日：2020-01-10
Applicant: Apple Inc.
Inventor： Yuchul Kim , Jia Tang , Yang Li , Wei Zeng , Haitong Sun , Yu Zhang , Zhu Ji , Dawei Zhang
Abstract: This disclosure relates to techniques for a wireless device to dynamically adapt its bandwidth use using network scheduling information in a cellular communication system. A radio resource control connection between a cellular base station and a wireless device may be established. The wireless device may receive network scheduling information from the cellular base station. The wireless device may dynamically select a receive bandwidth for receiving transmissions from the cellular base station based at least in part on the network scheduling information.
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公开(公告)号：US20200245408A1
公开(公告)日：2020-07-30
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：US20200245360A1
公开(公告)日：2020-07-30
申请号：US15770745
申请日：2017-11-17
Applicant: Apple Inc.
Inventor： Fangli Xu , Dawei Zhang , Haijing Hu , Yuqin Chen
Abstract: This disclosure relates to performing bandwidth part activation in a cellular communication system. A wireless device may attach to a network via a cell that includes multiple bandwidth parts. The wireless device may receive an indication activating a non-default bandwidth part for the wireless device. A bandwidth part activation timer may be initiated based at least in part on activation of the non-default bandwidth part. At expiration of the bandwidth part activation timer, the wireless device may deactivate the non-default bandwidth part and activate a default bandwidth part if there is not a procedure to perform an uplink data transfer in progress. If there is a procedure to perform an uplink data transfer in progress at expiration of the bandwidth part activation timer, the procedure may be completed via the non-default BWP even after expiration of the bandwidth part activation timer.
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公开(公告)号：US20200229166A1
公开(公告)日：2020-07-16
申请号：US16834908
申请日：2020-03-30
Applicant: Apple Inc.
Inventor： Johnson O. Sebeni , Yang Li , Zhu Ji , Yuchul Kim , Wei Zeng , Dawei Zhang , Haijing Hu , Xiangying Yang , Li Su
Abstract: A downlink control information (DCI), such as a blanking DCI (bDCI) message may be transmitted by a base station (e.g., eNB) and received by a mobile device (e.g., UE). The bDCI may indicate that the eNB will not transmit a subsequent DCI to the UE for a duration of time. The UE may be in continuous reception mode or connected discontinuous reception (C-DRX) mode. The UE may therefore determine to enter a sleep state or take other action. The bDCI may specify an explicit blanking duration, or an index indicating a blanking duration from a lookup table, and/or the blanking duration (and/or a blanking duration offset value) may be determined in advance, e.g., semi-statically. When the UE is in C-DRX mode, the UE may be configured such that either the sleep/wake period of the C-DRX mode or the blanking period of the bDCI may take precedence over the other.
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Patent Agency Ranking
公开(公告)号：US10693623B2
公开(公告)日：2020-06-23
申请号：US14496949
申请日：2014-09-25
Applicant: Apple Inc.
Inventor： Tarik Tabet , Farouk Belghoul , S. Aon Mujtaba , Dawei Zhang
Abstract: This disclosure relates to using a dedicated reference subframes in a cellular communication system. According to one embodiment, a base station may transmit reference signals in a dedicated synchronization and measurement reference subframe. Neighboring base stations may also transmit reference signals in dedicated reference subframes in a temporally coordinated (synchronized) manner. The reference signals transmitted be each base station may be orthogonal with the reference signals transmitted by each neighboring base station. The reference subframes may be transmitted periodically, and data subframes may be transmitted between reference subframes. Some or all of the data subframes may not include cell-specific reference symbols, as their function may be unnecessary given the use of the dedicated reference subframes.
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公开(公告)号：US20200137744A1
公开(公告)日：2020-04-30
申请号：US16437223
申请日：2019-06-11
Applicant: Apple Inc.
Inventor： Murtaza A. Shikari , Sree Ram Kodali , Srirang A. Lovlekar , Sethuraman Gurumoorthy , Srinivasan Nimmala , Adesh Kumar , Vijay Venkataraman , Muthukumaran Dhanapal , Haijing Hu , Fangli Xu , Yuqin Chen , Xu Ou , Longda Xing , Dawei Zhang
Abstract: This disclosure relates to techniques for reducing signaling overhead associated with signaling the capability of a wireless device and/or other messages. Among various possibilities, tags and/or compression may be used. Additionally, techniques for enhanced security and signaling between network devices are disclosed.
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318.发明申请公开(公告)号：US20200128423A1
公开(公告)日：2020-04-23
申请号：US16718418
申请日：2019-12-18
Applicant: Apple Inc.
Inventor： Wei Zhang , Tianyan Pu , Yang Li , Haitong Sun , Wei Zeng , Jia Tang , Beibei Wang , Sami M. Almalfouh , Zhu Ji , Johnson O. Sebeni , Yuchul Kim , Dawei Zhang
Abstract: Apparatuses, systems, and methods for a wireless device to perform a method including performing one or more of periodic beam quality measurements and/or event-based beam quality measurements, determining, based at least in part on one or more of the periodic beam quality measurements and/or the event-based beam quality measurements, a recommended beam quality measurement configuration, and transmitting, to a base station serving the UE, the recommended beam quality measurement configuration. In addition, the UE may perform receiving, from the base station, instructions regarding the beam quality measurement configuration. The instructions may include instructions to activate, deactivate, and/or modify at least one beam quality measurement configuration. In addition, the instructions may be based, at least in part, on the recommended beam quality measurement configuration.
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公开(公告)号：US10609615B2
公开(公告)日：2020-03-31
申请号：US15933837
申请日：2018-03-23
Applicant: Apple Inc.
Inventor： Farouk Belghoul , Tarik Tabet , Dawei Zhang
Abstract: In at least some embodiments, a method, apparatus, and system for performing communication using a plurality of radio access technologies (RATs) including a cellular RAT and a short-range RAT. A mobile device may be configured to receive information regarding traffic steering, i.e., cellular/short-range RAT handover, from nearby short-range access points and/or from a cellular base station. The mobile device may generate or determine mobility information of the mobile device, which indicates an amount of movement of the mobile device. The mobile device may determine whether the mobile device should transition between the cellular RAT and the short-range RAT based at least in part on the traffic-steering information and the mobility information. The mobile device may selectively transition between the cellular RAT and the short-range RAT based on the determination.
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公开(公告)号：US20200100178A1
公开(公告)日：2020-03-26
申请号：US16564018
申请日：2019-09-09
Applicant: Apple Inc.
Inventor： Yuchul Kim , Haitong Sun , Wei Zeng , Dawei Zhang
IPC: H04W52/02 , H04B7/0456 , H04W72/04 , H04W76/28 , H04W76/10
Abstract: This disclosure relates to techniques for dynamically adjusting a number of active receiver chains of a wireless device. Based on communication parameters exchanged with a base station, a device may determine a maximum number of receiver chains needed for data reception during one or more time periods. Such dynamic adjustment may enable power savings.
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