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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：US20220086710A1
公开(公告)日：2022-03-17
申请号：US17534214
申请日：2021-11-23
Applicant: Apple Inc.
Inventor： Fangli Xu , Dawei Zhang , Haijing Hu , Murtaza A. Shikari , Sethuraman Gurumoorthy , Sree Ram Kodali , Srinivasan Nimmala , Srirang A. Lovlekar , Longda Xing , Xu Ou , Yuqin Chen
Abstract: Apparatuses, systems, and methods for a wireless device to perform master cell group failure recovery in a dual connectivity cellular communication system. The wireless device may establish a first wireless link to a cellular network via a first cell group. The first cell group may be configured as a master cell group for the wireless device. The wireless device may establish a second wireless link to the cellular network via a second cell group. The second cell group may be configured as a secondary cell group for the wireless device. The wireless device may determine that link failure for the first wireless link has occurred. The wireless device may perform master cell group link failure recovery using the second wireless link based at least in part on the link failure for the first wireless link.
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公开(公告)号：US20210368565A1
公开(公告)日：2021-11-25
申请号：US15734516
申请日：2019-11-04
Applicant: Apple Inc.
Inventor： Zhibin Wu , Clive E. Rodgers , Dawei Zhang , Fangli Xu , Haijing Hu , Hong He , Longda Xing , Murtaza A. Shikari , Sethuraman Gurumoorthy , Sree Ram Kodali , Srinivasan Nimmala , Srirang A. Lovlekar , Vijay Venkataraman , Yuqin Chen
Abstract: Peer devices may wirelessly communicate with each other over a bidirectional sidelink logical channel (LCH) through an established bidirectional sidelink radio bearer. An initiating device of the peer devices may dynamically select a logical channel ID for establishing a fully bidirectional or semi-bidirectional SLRB. At least two alternative sidelink radio resource control (PC5-RRC) procedures may ensure the SLRB parameters are configured correctly in the established logical channel. The procedures also allow the network to configure a limited SLRB which is used to couple the SLRB configuration in the direction in which limited traffic (e.g. feedback information such as robust header compression feedback and/or status reports) is transmitted.
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公开(公告)号：US20210368400A1
公开(公告)日：2021-11-25
申请号：US16487039
申请日：2018-08-28
Applicant: Apple Inc.
Inventor： Fangli Xu , Dawei Zhang , Haijing Hu , Longda Xing , Murtaza A. Shikari , Sethuraman Gurumoorthy , Sree Ram Kodali , Srinivasan Nimmala , Srirang A. Lovlekar , Xu Ou , Yuqin Chen
Abstract: This disclosure relates to techniques for supporting cell set based mobility. A network may provide configuration information to a wireless device, relating to a current cell and possibly to one or more other cells in one or more cell sets. The wireless device and network may take various measurements. In response to the measurements and the configuration information, the wireless device may perform a cell change to one of the other cells.
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公开(公告)号：US20210360495A1
公开(公告)日：2021-11-18
申请号：US17286393
申请日：2018-11-01
Applicant: Apple Inc.
Inventor： Srirang A. Lovlekar , Srinivasan Nimmala , Haijing Hu , Fangli Xu , Yuqin Chen , Longda Xing , Dawei Zhang , Murtaza A. Shikari , Sethuraman Gurumoorthy
Abstract: This disclosure relates to techniques for performing conditional handovers and cell re-selections along known routes. A cellular base station may select a conditional handover set for a wireless device. The conditional handover set may include information for multiple conditional handovers. The wireless device may receive the conditional handover set. The wireless device may perform conditional handover to at least a first cell indicated in the conditional handover set based at least in part on the conditional handover set.
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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：US20210337619A1
公开(公告)日：2021-10-28
申请号：US16336456
申请日：2018-04-06
Applicant: Apple Inc.
Inventor： Dawei Zhang , Fangli Xu , Haijing Hu , Longda Xing , Murtaza A. Shikari , Sethuraman Gurumoorthy , Sree Ram Kodali , Srinivasan Nimmala , Srirang A. Lovlekar , Xu Ou , Yuqin Chen
Abstract: Apparatuses, systems, and methods for a wireless device to perform a method including a user equipment device (UE) receiving from a network entity, a configuration message, wherein the configuration message includes a parameter specifying out-of-order delivery of data units from lower layers to upper layers of a protocol stack implemented on the UE, configuring a radio link control (RLC) layer of a protocol stack for out-of-order delivery based on the received configuration message, and notifying the network entity of the configuration of the RLC layer.
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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：US20210204129A1
公开(公告)日：2021-07-01
申请号：US17057622
申请日：2018-06-22
Applicant: Apple Inc.
Inventor： Xiangying Yang , Elliot S. Briggs , Samuel D. Post , Yannick L. Sierra , Fangli Xu , Dawei Zhang , Haijing Hu , Huarui Liang , Li Li , Lijia Zhang , Shu Guo , Yuqin Chen
IPC: H04W12/069 , H04W12/73 , H04W12/108 , H04W76/27 , H04W74/08
Abstract: This disclosure relates to techniques, base stations, and user equipment devices (UEs) for performing base station authentication through access stratum signaling transmissions. The UE may operate in idle mode and may receive an authentication message from a base station through the wireless interface while operating in idle mode. The UE may determine whether a signature comprised within the authentication message is valid, and the UE may continue a connection procedure with the base station based on a determination that the signature is valid. If it is determined that the signature is invalid, the UE may designate the base station as a barred base station and may perform cell re-selection. The authentication message may be one of a radio resource control (RRC) connection setup message, a special RRC message, a media access control (MAC) message, or a random access channel (RACH) message comprising a random access response (RAR) message.
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公开(公告)号：US20210195405A1
公开(公告)日：2021-06-24
申请号：US17270421
申请日：2018-08-29
Applicant: Apple Inc.
Inventor： Sethuraman Gurumoorthy , Srirang A. Lovlekar , Murtaza A. Shikari , Haijing Hu , Fangli Xu , Yuqin Chen , Sree Ram Kodali , Xu Ou , Srinivasan Nimmala , Longda Xing , Dawei Zhang
Abstract: Base stations, user equipment devices (UEs), and methods for a base station to supply service type-specific information to the UE. The base station may broadcast a first system information block (SIB) comprising scheduling information for a plurality of second SIBs, wherein each of the plurality of second SIBs corresponds to a respective service type of a plurality of service types, and wherein the second SIBs describe service type-specific capabilities of the base station. The plurality of service types may comprise two or more of enhanced mobile broadband, ultra-reliable low latency communications, and massive machine-type communications. The base station may broadcast the plurality of second SIBs according to the scheduling information of the first SIB, and may establish a connection and communicate with the UE using one or more service types and according to the service type-specific capabilities described by second SIBs corresponding to the one or more service types.
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