公开(公告)号：US11792748B2

公开(公告)日：2023-10-17

申请号：US17051383

申请日：2018-05-10

Applicant: Apple Inc.

Inventor： Fangli Xu ,  Haijing Hu ,  Dawei Zhang ,  Longda Xing ,  Murtaza A. Shikari ,  Sethuraman Gurumoorthy ,  Sree Ram Kodali ,  Srinivasan Nimmala ,  Srirang A. Lovlekar ,  Xu Ou ,  Yuqin Chen

IPC: H04W56/00 ,  H04L1/1829 ,  H04L1/1867

CPC classification number: H04W56/00 ,  H04L1/189 ,  H04L1/1832

Abstract: A transmitter (e.g. a packet data convergence protocol, PDCP, in the transmitter), which may be a base station for downlink communications or a user equipment device for uplink communications, may control timing of the delivery of duplicate (same) packets to multiple (e.g. two) wireless links (e.g. radio link control links) for transmission to a receiver, based at least on synchronization information received from the receiver. The duplicate packets may be transmitted over the multiple wireless links to the receiver, which may receive the duplicate packets over the multiple wireless links. The receiver may collect and/or generate synchronization information indicative of the timing or latency between the multiple wireless links, based at least on the respective receive timings of the duplicate packets over the multiple wireless links. The receiver may transmit a report containing the synchronization information to the transmitter periodically and/or in response to a trigger event.

公开(公告)号：US20230122107A1

公开(公告)日：2023-04-20

申请号：US18083370

申请日：2022-12-16

Applicant: Apple Inc.

Inventor： Wei Zhang ,  Frangli Xu ,  Haitong Sun ,  Sriram Subramanian ,  Vishwanth Kamala Govindaraju ,  Johnson O. Sebeni ,  Dawei Zhang ,  Hong He ,  Yuchul Kim ,  Haijing Hu ,  Yuqin Chen ,  Wei Zeng ,  Sanjeevi Balasubramanian ,  Sandeep K. Sunkesala ,  Tarakkumar G. Dhanani ,  Madhukar K. Shanbhag ,  Shiva Krishna Narra ,  Longda Xing ,  Srinivasan Nimmala ,  Sree Ram Kodali ,  Murtaza A. Shikari ,  Sethuraman Gurumoorthy ,  Srirang A. Lovlekar ,  Xu Ou

IPC: H04W88/10 ,  H04W24/08 ,  H04W88/02 ,  H04W76/15 ,  H04W76/27 ,  H04W72/21 ,  H04W72/23 ,  H04W72/27

Abstract: A user equipment (UE) device may reside in a state of dual connectivity with a master cell group (MCG) and a secondary cell group (SCG), wherein the radio access technologies of the MCG and the SCG are different. While in the dual connectivity state, the UE device may transition to a mode of reduced activity (e.g., processing and/or RF activity) relative to the secondary cell group (SCG) in order to save power, e.g., when traffic flow via the SCG is below a threshold, or when scheduling activity on the SCG is low. Various mechanisms may be employed to reduce activity, e.g., mechanisms such as reduction of beam monitoring, deactivation of secondary cells of the SCG, reduction of number of active antenna elements, employment of longer periods for periodic measurement and reporting processes, etc.

公开(公告)号：US11564138B2

公开(公告)日：2023-01-24

申请号：US17688488

申请日：2022-03-07

Applicant: Apple Inc.

Inventor： Yuqin Chen ,  Dawei Zhang ,  Fangli Xu ,  Haijing Hu ,  Longda Xing ,  Murtaza A. Shikari ,  Sethuraman Gurumoorthy ,  Sree Ram Kodali ,  Srinivasan Nimmala ,  Srirang A. Lovlekar ,  Xu Ou

IPC: H04W4/00 ,  H04W36/10 ,  H04W36/00 ,  H04W36/08 ,  H04W36/14

Abstract: Apparatuses, systems, and methods for a wireless device avoiding reselection or handover to cells of different operators. The wireless device may attach to a first base station of a first network operator. The wireless device may determine that a neighboring base station is associated with a second network operator. Based on determining the neighboring base station is associated with the second network operator, the wireless device may exclude the third base station from handover or reselection.

公开(公告)号：US11564136B2

公开(公告)日：2023-01-24

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

IPC: H04W4/00 ,  H04W36/00 ,  H04W36/30 ,  H04W48/16 ,  H04W88/06

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.

公开(公告)号：US20220124866A1

公开(公告)日：2022-04-21

申请号：US17562685

申请日：2021-12-27

Applicant: Apple Inc.

Inventor： Fangli Xu ,  Haijing Hu ,  Dawei Zhang ,  Longda Xing ,  Murtaza A. Shikari ,  Sethuraman Gurumoorthy ,  Sree Ram Kodali ,  Srinivasan Nimmala ,  Srirang A. Lovlekar ,  Xu Ou ,  Yuqin Chen

IPC: H04W76/27 ,  H04W76/10 ,  H04W68/00 ,  H04W74/08 ,  H04W36/04 ,  H04W36/00 ,  H04L69/28

Abstract: This disclosure relates to performing data communication while in an inactive state in a cellular communication system.

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

IPC: H04W36/00 ,  H04W36/30 ,  H04W48/16 ,  H04W88/06

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.

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

IPC: H04W36/00 ,  H04W36/32 ,  H04W48/20

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.

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

IPC: H04W76/25 ,  H04W28/06 ,  H04W76/10 ,  H04W80/02 ,  H04W36/00 ,  H04L5/00

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.

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

IPC: H04W8/24 ,  H04W72/12 ,  H04W48/10 ,  H04W76/10

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.

公开(公告)号：US10993277B2

公开(公告)日：2021-04-27

申请号：US16572396

申请日：2019-09-16

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

IPC: H04W76/15 ,  H04W36/02 ,  H04W28/02

Abstract: Apparatuses, systems, and methods for a wireless device to perform enhanced duplication handling and/or failure handling procedures with a network, including one or more base station. The wireless device may connect to a network using multiple paths. The wireless device may autonomously determine whether to duplicate one or more transmissions to the network on the multiple paths. In the event of a radio link control failure associated with one bearer, the wireless device may suspend transmission of the failed bearer while continuing to use one or more other bearers for transmission.