公开(公告)号：US20200235914A1

公开(公告)日：2020-07-23

申请号：US16733515

申请日：2020-01-03

Applicant: Apple Inc.

Inventor： Dawei Zhang ,  Fangli Xu ,  Haijing Hu ,  Huarui Liang ,  Lijia Zhang ,  Robert K. Kitchens ,  Samuel D. Post ,  Shu Guo ,  Xiangying Yang ,  Yannick L. Sierra ,  Yuqin Chen

IPC: H04L9/06 ,  H04L29/06 ,  H04W12/06 ,  H04L9/08 ,  H04W12/04

Abstract: Apparatuses, systems, and methods for generating and utilizing improved initialization vectors (IVs) when performing encryption and authentication in wireless communications. In some scenarios, a wireless communication device may generate one or more pseudorandom multi-bit values, e.g., using a respective plurality of key derivation functions (KDFs). A first portion of each value may be used as a respective key for encryption or authentication of traffic on the user plane or the control plane. A second portion of each value may be used as a nonce value in a respective IV for use with a respective key for encryption or authentication of traffic on the user plane or the control plane. In some scenarios, the nonce values may instead be generated as part of an additional pseudorandom value (e.g., by executing an additional KDF), from which all of the IVs may be drawn.

公开(公告)号：US20200186290A1

公开(公告)日：2020-06-11

申请号：US16582081

申请日：2019-09-25

Applicant: Apple Inc.

Inventor： Wei Zhang ,  Wanping Zhang ,  Fangli Xu ,  Haitong Sun ,  Pengkai Zhao ,  Jia Tang ,  Wei Zeng ,  Yuqin Chen ,  Haijing Hu ,  Sami M. Almalfouh ,  Dawei Zhang ,  Johnson O. Sebeni

IPC: H04L1/00 ,  H04L5/00 ,  H04W72/12

Abstract: Groupcast communications between devices of a group of devices, e.g. between vehicles in a platoon, may include a device in the group transmitting a groupcast message in a sidelink transmission to the other devices and receiving feedback information in sidelink transmissions from the other devices within the same channel occupancy time (CoT). The feedback information may be transmitted by the other devices in response to the groupcast message including an information request directed to the other devices. The group of devices may include a designated group leader which may manage one or more aspects of the communications of the other devices in the group. The designated group leader may be dynamically switched based at least on the received feedback information. The devices in the group may use beamforming for intra-group and inter-group sidelink communications for efficient spectrum usage.

公开(公告)号：US20200084818A1

公开(公告)日：2020-03-12

申请号：US16553427

申请日：2019-08-28

Applicant: Apple Inc.

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

IPC: H04W76/18 ,  H04W48/02 ,  H04W48/04 ,  H04W36/00

Abstract: This disclosure relates to techniques for efficiently handling connection rejections. A wireless device may detect barring conditions in response to receiving one or more connection rejections. The wireless device may bar one or more connections based on the barring conditions, and may attempt to access network services over one or more other connections.

公开(公告)号：US10567142B2

公开(公告)日：2020-02-18

申请号：US15903222

申请日：2018-02-23

Applicant: Apple Inc.

Inventor： Yuchul Kim ,  Wei Zeng ,  Xiangying Yang ,  Haijing Hu ,  Dawei Zhang

IPC: H04L5/00 ,  H04L1/00 ,  H04L1/18 ,  H04W52/02

Abstract: Techniques are disclosed relating to acknowledgements and preemption indicators in the context of multiplexing different services on wireless physical layer frames. In some embodiments, transport blocks for a transmission are divided into code blocks and code block groups. Information indicating the division may be communicated between a base station and mobile device. In some embodiments, a preemption indicator is transmitted which indicates a portion of the transport block preempted by another data service, and the preemption indicator is specified at a different granularity than a code block group. In some embodiments, acknowledgement information is transmitted that indicates, for each code block group included in the transport block, whether the code block group was successfully decoded by the user device. In various embodiments, the disclosed techniques may facilitate preemption by a low-latency, high-reliability data service.

公开(公告)号：US10560143B2

公开(公告)日：2020-02-11

申请号：US16117192

申请日：2018-08-30

Applicant: Apple Inc.

Inventor： Wei Zeng ,  Haijing Hu ,  Dawei Zhang ,  Xiangying Yang ,  Haitong Sun ,  Christian W. Mucke

IPC: H04B1/71 ,  H04B1/711 ,  H04W52/14 ,  H04W72/04 ,  H04B17/309 ,  H04W52/36 ,  H04W72/08

Abstract: Apparatuses, systems, and methods for a wireless device to detect intermodulation issues and configure a transmission scheme to remedy detected intermodulation issues. The wireless device may perform measurements on a downlink carrier while one uplink carrier is scheduled for the wireless device. The wireless device may also perform measurements on the downlink carrier while two uplink carriers are scheduled for the wireless device. The wireless device may provide information based on those measurements to a serving base station. The base station may determine that an intermodulation issue is occurring at the wireless device based on the information provided, and may configure the wireless device to use a single uplink carrier at a time based at least in part on the intermodulation issue.

公开(公告)号：US20180278368A1

公开(公告)日：2018-09-27

申请号：US15903222

申请日：2018-02-23

Applicant: Apple Inc.

Inventor： Yuchul Kim ,  Wei Zeng ,  Xiangying Yang ,  Haijing Hu ,  Dawei Zhang

IPC: H04L1/00 ,  H04L1/18 ,  H04W52/02

Abstract: Techniques are disclosed relating to acknowledgements and preemption indicators in the context of multiplexing different services on wireless physical layer frames. In some embodiments, transport blocks for a transmission are divided into code blocks and code block groups. Information indicating the division may be communicated between a base station and mobile device. In some embodiments, a preemption indicator is transmitted which indicates a portion of the transport block preempted by another data service, and the preemption indicator is specified at a different granularity than a code block group. In some embodiments, acknowledgement information is transmitted that indicates, for each code block group included in the transport block, whether the code block group was successfully decoded by the user device. In various embodiments, the disclosed techniques may facilitate preemption by a low-latency, high-reliability data service.

公开(公告)号：US20180049209A1

公开(公告)日：2018-02-15

申请号：US15027492

申请日：2016-02-05

Applicant: Apple Inc.

Inventor： Haijing Hu ,  Dawei Zhang ,  Huarui Liang

IPC: H04W72/08 ,  H04W48/08 ,  H04W92/02 ,  H04W24/10 ,  H04W48/18

CPC classification number: H04W72/08 ,  H04W16/14 ,  H04W24/10 ,  H04W28/08 ,  H04W48/08 ,  H04W48/18 ,  H04W76/27 ,  H04W88/06 ,  H04W92/02

Abstract: This disclosure relates to techniques for managing and monitoring access to a cellular network using unlicensed spectrum. According to some embodiments, policy information indicating permissible and/or non-permissible uses of unlicensed spectrum to access a radio access network of the cellular network may be distributed to elements of the radio access network, such as base stations. A base station establishing a radio bearer with a wireless device may receive information regarding a service type associated with the radio bearer and may determine radio bearer characteristics, potentially including whether to establish the radio bearer using unlicensed or licensed spectrum, based at least in part on the service type associated with the radio bearer and the network policy information. The base station and/or the user device may also report information regarding unlicensed (and possibly also licensed) network access by the user device to a core network of the cellular network.

公开(公告)号：US20170265057A1

公开(公告)日：2017-09-14

申请号：US15030159

申请日：2015-09-30

Applicant: Apple Inc.

Inventor： Dawei Zhang ,  Haijing Hu ,  Huarui Liang

IPC: H04W8/04 ,  H04W48/04 ,  H04L29/12 ,  H04W12/06 ,  H04W60/04

CPC classification number: H04W60/005 ,  H04L61/1511 ,  H04L61/1588 ,  H04W8/04 ,  H04W12/06 ,  H04W48/04 ,  H04W60/00 ,  H04W60/04 ,  H04W88/005 ,  H04W88/16

Abstract: Apparatuses, systems, and methods to perform attachment of a wireless device to a next generation gateway via either a base station of a next generation radio access network (RAN) or a mobility management entity of a legacy RAN. An apparatus may be configured to receive an attachment request from a wireless device, determine authentication information via communication with a home subscriber server, determine, based at least in part on the authentication information, whether the wireless device is capable of communicating via the next generation RAT, and send, in response to determining the wireless device is capable, a connection request to a gateway of the next generation RAN. The authentication information may include subscription information associated with the wireless device.

公开(公告)号：US20250168760A1

公开(公告)日：2025-05-22

申请号：US18923560

申请日：2024-10-22

Applicant: Apple Inc.

Inventor： Fangli Xu ,  Zhibin Wu ,  Shu Guo ,  Yuqin Chen ,  Ralf Rossbach ,  Behrouz Aghili ,  Haijing Hu ,  Peng Cheng ,  Naveen Kumar R. Palle Venkata ,  Sudeep Manithara Vamanan

IPC: H04W48/18 ,  H04L41/12 ,  H04W48/16 ,  H04W76/27

Abstract: The present application relates to devices and components including apparatus, systems, and methods to establish and utilize NAS-X connections between a device and a network function of a network.

公开(公告)号：US12302226B2

公开(公告)日：2025-05-13

申请号：US17766546

申请日：2021-05-08

Applicant: Apple Inc.

Inventor： Fangli Xu ,  Zhibin Wu ,  Yuqin Chen ,  Sarma V Vangala ,  Naveen Kumar R Palle Venkata ,  Sethuraman Gurumoorthy ,  Srirang A Lovlekar ,  Haijing Hu ,  Dawei Zhang

IPC: H04W48/16 ,  H04W76/20

Abstract: A user equipment (UE) configured as a relay UE between a remote UE and a base station is disclosed. The UE comprises one or more processors configured to receive a RRC signaling to request for establishing or resuming RRC connection from the remote UE, determine whether to perform an access control check prior to forwarding the RRC Signaling of the remote UE to the base station, and forward the RRC Signaling to the base station based on the determination.