公开(公告)号：US20240357415A1

公开(公告)日：2024-10-24

申请号：US18304486

申请日：2023-04-21

Applicant: Apple Inc.

Inventor： Vinay Rajkumar Patil ,  Amit Dubey ,  Darshan Bharat Ashar ,  Vijay Venkataraman

IPC: H04W28/02 ,  H04W28/06 ,  H04W76/30

CPC classification number: H04W28/0252 ,  H04W28/06 ,  H04W76/30

Abstract: Techniques described herein include solutions for adaptively handling transport blocks (TBs) based on current memory backpressure conditions. In some aspects, a user equipment (UE) monitors a memory backpressure associated with an application processor of the UE. A baseband processor of the UE may receive a plurality of TBs (e.g., from a base station). Based on the memory backpressure, the UE may choose to only decode TBs having certain prioritized data types, and drop or ignore the remaining TBs. For example, the UE may drop certain low priority TBs destined for the application processor, which alleviates the memory backpressure by allowing the application processor to process piled up TBs causing the memory backpressure. In addition, this frees memory in the baseband processor, allowing the UE to handle high priority TBs used for essential functions (e.g., connection and synchronization with the network) in high memory backpressure scenarios.

公开(公告)号：US12089278B2

公开(公告)日：2024-09-10

申请号：US17267310

申请日：2020-02-13

Applicant: Apple Inc.

Inventor： Zhibin Wu ,  Srinivasan Nimmala ,  Longda Xing ,  Vijay Venkataraman ,  Alosious Pradeep Prabhakar ,  Krisztian Kiss ,  Haijing Hu ,  Cahya A. Masputra

IPC: H04W76/25 ,  H04W76/14

CPC classification number: H04W76/25 ,  H04W76/14

Abstract: A service device (e.g., a user equipment (UE), or other network component) can operate generate sidelink communications with peer UE devices based on PC5 unicast link to enable a direct peer-to-peer communication as part of PC5 vehicle-to-everything (V2X) communications. Radio status link detection can be configured based on a keep alive (KA) coordination scheme via the PC5 unicast link to monitor a status of the PC5 unicast link. A KA timer can be configured based on the KA coordination scheme via the PC5 unicast link. The KA coordination scheme is configured to reduce redundant KA requests in the PC5 unicast link to coordinate the direct peer-to-peer communication across the PC5 unicast link.

公开(公告)号：US20240284239A1

公开(公告)日：2024-08-22

申请号：US18415103

申请日：2024-01-17

Applicant: Apple Inc.

Inventor： Ralf Rossbach ,  Fangli Xu ,  Bobby Jose ,  Ping-Heng Kuo ,  Vijay Venkataraman ,  Haijing Hu

IPC: H04W28/02

CPC classification number: H04W28/0252

Abstract: The techniques described herein may include a device, comprising: a memory; and one or more processors configured to, when executing instructions stored in the memory, cause the device to: communicate, via a wireless communication network, information as in-order traffic using an in-order radio link control (RLC) entity; and communicate, via the wireless communication network, information as out-of-order traffic using an out-of-order RLC entity. The in-order traffic and the out-of-order traffic may be communicated using the same data radio bearer (DRB). The out-of-order traffic may include selective out-of-order delivery (OOD) or per-packet OOD. Additional examples, features and other techniques are also described herein.

公开(公告)号：US12010667B2

公开(公告)日：2024-06-11

申请号：US17250886

申请日：2018-09-20

Applicant: Apple Inc.

Inventor： Swaminathan Balakrishnan ,  Haijing Hu ,  Sreevalsan Vallath ,  Prateek Sharma ,  Cesar Perez ,  Adesh Kumar ,  Deepankar Bhattacharjee ,  Vijay Venkataraman

IPC: H04W72/0453 ,  H04L5/00 ,  H04W72/51

CPC classification number: H04W72/0453 ,  H04L5/0092 ,  H04W72/51

Abstract: A user equipment (UE) is configured with a carrier aggregation (CA) functionality and UE connected to a network via a base station that serves as a primary serving cell (PCell) providing a primary component carrier (PCC) to the UE. The UE determines a plurality of bands that are supported by the UE for use in the CA functionality, generates an individual band information element (IE) including band information for the bands, determines at least one representative CA combination having an order, the order indicating a total number of component carriers (CCs), the at least one representative CA combination forming a basis to extrapolate a plurality of CA combinations having the order based on the band information, generates a representative CA combination IE including the at least one representative CA combination and transmits the individual band IE and the representative CA combination IE to the base station.

公开(公告)号：US11985563B2

公开(公告)日：2024-05-14

申请号：US17951542

申请日：2022-09-23

Applicant: Apple Inc.

Inventor： Nihar Garg ,  Ehsan Ahmed Quadri Syed ,  Karthik Anantharaman ,  Mohamed L. Haidara ,  Shashikant Tiwari ,  Sree Ram Kodali ,  Sridhar Prakasam ,  Vijay Venkataraman

IPC: H04W36/30 ,  H04W36/00

CPC classification number: H04W36/30 ,  H04W36/0079

Abstract: Embodiments are presented herein of apparatuses, systems, and methods for mitigation of secondary cell failures. A user equipment (UE) may establish communication with a macro cellular base station. The UE may perform a signal quality measurement of a small cell base station and compare the signal quality measurement to a threshold. Based on the signal quality measurement exceeding the threshold, the UE may attempt to additionally connect to the small cell base station. In response to a radio link failure of the second base station, the UE may modify the first threshold. In response to subsequent failures to additionally connect to the small cell base station using the modified first threshold, the UE may disable connections to the small cell base station.

公开(公告)号：US11979945B2

公开(公告)日：2024-05-07

申请号：US17944884

申请日：2022-09-14

Applicant: Apple Inc.

Inventor： Sofheem Mohammed ,  Rohit Thareja ,  Vijay Venkataraman ,  Shivani Suresh Babu

IPC: H04W24/10 ,  H04W36/00 ,  H04W76/27 ,  H04W88/06

CPC classification number: H04W88/06 ,  H04W24/10 ,  H04W36/0083 ,  H04W76/27

Abstract: This disclosure relates to techniques for a wireless device to determine a radio access technology availability indicator to present. A wireless device may establish a wireless link with a cellular network via a cell that operates according to a first radio access technology. The wireless device may determine if access to the cellular network is also available via a cell that operates according to a second radio access technology, by configuration by the serving cell or from another standalone cell. The wireless device may select a radio access technology availability indicator to present based at least in part on determining if access to the cellular network is also available via a cell that operates according to the second radio access technology.

公开(公告)号：US20240129253A1

公开(公告)日：2024-04-18

申请号：US18397089

申请日：2023-12-27

Applicant: Apple Inc.

Inventor： Martin Kugler ,  Cahya A. Masputra ,  Christoph Paasch ,  Hans Jürgen Steffen ,  Murtaza A. Shikari ,  Vijay Venkataraman

IPC: H04L47/32 ,  H04L47/193 ,  H04L47/2483

CPC classification number: H04L47/323 ,  H04L47/193 ,  H04L47/2483

Abstract: A client device in a wireless network accesses a queue comprising Transmission Control Protocol Acknowledgement (TCP ACK) packets. At least some packets include packet descriptors with a flow identifier indicating a corresponding TCP flow, and a TCP ACK Generation Count. The device inspects a packet descriptor of a first TCP ACK packet, and identifies a first flow identifier and a first TCP ACK Generation Count. The device accesses entries in a data structure that each includes a first field and a second field respectively storing a flow identifier and a TCP ACK Generation Count. The device determines that a condition is satisfied, comprising that an entry in the data structure includes a flow identifier and a TCP ACK Generation Count matching the first flow identifier and the first TCP ACK Generation Count, respectively. In response to the determination, the device marks the first TCP ACK packet to be dropped.

公开(公告)号：US11930442B2

公开(公告)日：2024-03-12

申请号：US17566406

申请日：2021-12-30

Applicant: Apple Inc.

Inventor： Sudeep Manithara Vamanan ,  Roland Gruber ,  Nirlesh Koshta ,  Anikethan Ramakrishna Vijaya Kumar ,  Sridhar Prakasam ,  Mona Agnel ,  Krisztian Kiss ,  Vijay Venkataraman ,  Haijing Hu ,  Robert Zaus

IPC: H04W48/10 ,  H04W4/90 ,  H04W48/18

CPC classification number: H04W48/10 ,  H04W4/90 ,  H04W48/18

Abstract: Apparatuses, systems, and methods for reducing wireless device service interruptions. An indication of a disaster condition may be provided to a wireless device. The disaster condition may affect a home public land mobile network of the wireless device. The wireless device may perform cell selection in a manner influenced by the indication of the disaster condition. This may include considering cells associated with a forbidden public land mobile network for the cell selection, or excluding cells associated with the home public land mobile network of the wireless device that are unavailable, for example due to the disaster condition, among various possibilities.

公开(公告)号：US20240080743A1

公开(公告)日：2024-03-07

申请号：US18460351

申请日：2023-09-01

Applicant: Apple Inc.

Inventor： ChunLei Lin ,  Alosious Pradeep Prabhakar ,  Vijay Venkataraman

IPC: H04W36/36 ,  H04W36/30

CPC classification number: H04W36/362 ,  H04W36/30 ,  H04W88/06

Abstract: This disclosure relates to techniques for performing conditional handover candidate cell selection in a wireless communication system. A wireless device and a cellular base station may establish a wireless link. The wireless device may receive conditional handover configuration information. The conditional handover configuration information may indicate one or more conditions for performing handover and cell candidates for the conditional handover. The wireless device may determine that multiple cell candidates meet the conditions for performing handover. A cell candidate to which to perform handover may be selected based at least in part on one or more wireless device conditions. The wireless device may perform handover to the selected cell candidate.

公开(公告)号：US11906962B2

公开(公告)日：2024-02-20

申请号：US17182917

申请日：2021-02-23

Applicant: Apple Inc.

Inventor： Han Pu ,  Alosious Pradeep Prabhakar ,  Krisztian Kiss ,  Srinivasan Nimmala ,  Vijay Venkataraman ,  Yip Pong Herbert Wong

IPC: G05D1/00 ,  B64C39/02 ,  G05D1/10 ,  G01S19/42 ,  G08G5/00 ,  H04W84/04 ,  B64U10/25

CPC classification number: G05D1/0022 ,  B64C39/024 ,  G01S19/42 ,  G05D1/101 ,  G08G5/0095 ,  B64U10/25 ,  B64U2201/20 ,  H04W84/042

Abstract: Apparatuses, systems, and methods for tracking and/or controlling unmanned aerial vehicles (UAVs) as well as tracking UAV controllers (UACs) within a cellular network. A UAV/UAC may provide a cellular network with tracking information such as speed, orientation, altitude, C2 communication quality, C2 communication mode change request, measurement report, RRC status, cell ID, TAC ID, current location of the UAV, and destination of the UAV. The network may forward this information to an unmanned aerial system (UAS) traffic management system (UTM). The UTM may determine, based in part on the tracking information, whether to transfer control of the UAV from the UAC to the UTM. In some embodiments, the UAV/UAC may trigger the UTM to transfer control of the UAV form the UAC to the UTM.