公开(公告)号：US11122575B2

公开(公告)日：2021-09-14

申请号：US16894146

申请日：2020-06-05

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

IPC: H04W72/04 ,  H04W76/10 ,  H04L5/00 ,  H04W12/037

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.

公开(公告)号：US20210100039A1

公开(公告)日：2021-04-01

申请号：US17023317

申请日：2020-09-16

Applicant: Apple Inc.

Inventor： Yushu Zhang ,  Wei Zeng ,  Yuqin Chen ,  Dawei Zhang ,  Fangli Xu ,  Haijing Hu ,  Haitong Sun ,  Hong He ,  Yakun Sun ,  Yuchul Kim

IPC: H04W74/08

Abstract: A device may wirelessly transmit a physical RACH, and a first message on a physical uplink shared channel (PUSCH), in a first step of a 2-step random access channel (RACH) procedure. The device may receive a second message on a physical downlink shared channel in response to successful detection of the first message, in a second step of the 2-step RACH procedure. When detection of the first message is unsuccessful, the device may be instructed to fall back to a 4-step RACH procedure. The device may be configured with one or more first message transmit opportunities (PO), one of which may include one or more PUSCH resource units (PRUs). Some of the communication parameters of the device may be configured to be common for each PO, while other communication parameters may be configured per PRU. Respective new Radio Network Temporary ID values may be defined for the first message and second message.

公开(公告)号：US20210076400A1

公开(公告)日：2021-03-11

申请号：US16950608

申请日：2020-11-17

Applicant: Apple Inc.

Inventor： Dawei Zhang ,  Fangli Xu ,  Haijing Hu ,  Haitong Sun ,  Wei Zeng ,  Yuchul Kim ,  Yuqin Chen

IPC: H04W72/12 ,  H04L5/14 ,  H04W72/04 ,  H04L1/18 ,  H04L5/00 ,  H04W80/08 ,  H04L25/02 ,  H04W74/08 ,  H04W76/27 ,  H04L27/26

Abstract: Apparatuses, systems, and methods for time division multiplexing of uplink communications using a first wireless link with a first radio access technology (RAT) and a second wireless link with a second RAT.

公开(公告)号：US20200260498A1

公开(公告)日：2020-08-13

申请号：US16781337

申请日：2020-02-04

Applicant: Apple Inc.

Inventor： Fangli Xu ,  Dawei Zhang ,  Haijing Hu ,  Yuqin Chen ,  Wei Zeng ,  Haitong Sun ,  Yuchul Kim

IPC: H04W74/08 ,  H04W72/04 ,  H04W52/36

Abstract: Apparatuses, systems, and methods for a wireless device to perform 2-step random access procedures. The disclosure identifies features of 2-step random access procedures including configuration (e.g., under what circumstances to use 2-step vs. 4-step random access), message design, fallback procedures, power ramping, backoff, and retransmission procedures.

公开(公告)号：US20200260463A1

公开(公告)日：2020-08-13

申请号：US16782465

申请日：2020-02-05

Applicant: Apple Inc.

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

IPC: H04W72/08 ,  H04W72/04 ,  H04W24/10 ,  H04W88/06 ,  H04W36/14 ,  H04W76/15 ,  H04W36/00

Abstract: Various radio resource management techniques may be implemented to reduce in-device coexistence issues and/or interference between a Uu link established between a mobile device (first UE) and a base station (first NB), and a sidelink/PC5 link established between the first UE and another mobile device (second UE), where the second UE is served by a different base station (second NB). The first UE may receive, from the first NB, measurement configuration information that enables/configures the first UE to report to the NB any indication(s) of issues caused by communications between the first UE and the second UE over the PC5 link affecting communications between the first UE and the first NB over the Uu link, and/or communications over the Uu link affecting communications over the PC5 link. The first NB may analyze the feedback from the first UE and may implement mitigation measures to reduce/eliminate any interference and/or in-device-coexistence issues.

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：US12302219B2

公开(公告)日：2025-05-13

申请号：US17441816

申请日：2020-08-06

Applicant: Apple Inc.

Inventor： Fangli Xu ,  Chunhai Yao ,  Dawei Zhang ,  Haijing Hu ,  Longda Xing ,  Murtaza A. Shikari ,  Sarma V. Vangala ,  Srinivasan Nimmala ,  Wei Zeng

IPC: H04W48/06 ,  H04W76/27 ,  H04W76/19

Abstract: A base station associated with a wireless communication system is disclosed. The base station comprises one or more processors configured to generate a service configuration signal to be provided to a user equipment (UE) associated therewith. In some embodiments, the service configuration signal comprises an indication of one or more service configurations associated with a data transmission that are allowed to be transmitted by the UE during an INACTIVE state of the UE. In some embodiments, the one or more processors is further configured to provide the service configuration signal to the UE.

公开(公告)号：US20250142604A1

公开(公告)日：2025-05-01

申请号：US18835536

申请日：2022-02-13

Applicant: Apple Inc.

Inventor： Haijing Hu ,  Zhibin Wu ,  Naveen Kumar R. Palle Venkata ,  Chunxuan Ye ,  Yuqin Chen ,  Fangli Xu ,  Pavan Nuggehalli ,  Ralf Rossbach ,  Alexander Sirotkin

IPC: H04W72/40 ,  H04W72/121 ,  H04W72/231

Abstract: Techniques, described herein, include solutions for enabling inter-user equipment (UE) coordination (IUC) using media access control (MAC) control elements (CE). A first UE may send an IUC request to a second UE, and the second UE may respond with a MAC CE that includes IUC information. The IUC information may indicated one or more wireless resources that the first UE may use to communicate with the second UE. The IUC information may also include a time-domain validity for wireless resources, which may include one or more durations of time the wireless resources may be used for communication. The first UE may also implement a latency bound during which the second UE is to respond with the IUC information. In some implementations, discontinuous reception (DRX) may be used by the first and second UEs, and DRX active times of the UEs may be modified or configured to facilitate IUC.