公开(公告)号：US11329801B2

公开(公告)日：2022-05-10

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 ,  H04W12/04 ,  H04L9/08

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：US20230232299A1

公开(公告)日：2023-07-20

申请号：US18184424

申请日：2023-03-15

Applicant: Apple Inc.

Inventor： Vijay Venkataraman ,  Srinivasan Nimmala ,  Longda Xing ,  Kavya B. Ravikumar ,  Krisztian Kiss ,  Yifan Zhu ,  Murtaza A. Shikari ,  Robert K. Kitchens ,  Haijing Hu ,  Robert Zaus

IPC: H04W36/14 ,  H04W48/02 ,  H04W60/04 ,  H04W4/90

CPC classification number: H04W36/14 ,  H04W48/02 ,  H04W60/04 ,  H04W4/90

Abstract: Apparatuses, systems, and methods for performing efficient emergency services fallback. A cellular network element may provide emergency services fallback information to a wireless device during 3GPP 5GS cellular registration. The emergency services fallback information may include an indication of whether emergency services fallback via fallback to evolved packet core service is supported. The emergency services fallback information may also include an indication of whether emergency services fallback via fallback to circuit switched service is supported.

公开(公告)号：US11343640B2

公开(公告)日：2022-05-24

申请号：US16380102

申请日：2019-04-10

Applicant: APPLE INC.

Inventor： Srirang A. Lovlekar ,  Murtaza A. Shikari ,  Zheng Lu ,  Pankaj Subhash Vasandani ,  Srinivasan Nimmala ,  Sethuraman Gurumoorthy ,  Viswanath Nagarajan ,  Lakshmi N. Kavuri ,  Sridhar Prakasam ,  Robert K. Kitchens ,  Vijay Venkataraman ,  Muthukumaran Dhanapal ,  Xiangpeng Jing

IPC: H04W4/02 ,  H04W8/08 ,  H04W76/11 ,  H04W8/30 ,  H04W24/10 ,  H04B7/0456 ,  H04W74/08 ,  H04W80/02 ,  H04W36/08 ,  H04W84/12

Abstract: A device and method for a user equipment (UE) to implement power savings mechanisms when operating within a significant location. The UE identifies that the UE is at a significant location. The significant location is a location relative to a currently camped cell of a network. At a first time and at the significant location, the UE performs a type of operation related to the network connection. The UE stores information corresponding to the performance of the type of operation at the first time in a profile associated with the significant location. At a second time and at the significant location, the UE performs the type of operation related to the network connection. The performance of the type of operation at the second time is modified based on the information stored in the profile associated with the significant location.

公开(公告)号：US20200329338A1

公开(公告)日：2020-10-15

申请号：US16380102

申请日：2019-04-10

Applicant: APPLE INC.

Inventor： Srirang A. Lovlekar ,  Murtaza A. Shikari ,  Zheng Lu ,  Pankaj Subhash Vasandani ,  Srinivasan Nimmala ,  Sethuraman Gurumoorthy ,  Viswanath Nagarajan ,  Lakshmi N. Kavuri ,  Sridhar Prakasam ,  Robert K. Kitchens ,  Vijay Venkataraman ,  Muthukumaran Dhanapal ,  Xiangpeng Jing

IPC: H04W4/02 ,  H04W8/08 ,  H04W76/11 ,  H04W8/30 ,  H04W36/08 ,  H04W24/10 ,  H04B7/0456 ,  H04W74/08 ,  H04W80/02

Abstract: A device and method for a user equipment (UE) to implement power savings mechanisms when operating within a significant location. The UE identifies that the UE is at a significant location. The significant location is a location relative to a currently camped cell of a network. At a first time and at the significant location, the UE performs a type of operation related to the network connection. The UE stores information corresponding to the performance of the type of operation at the first time in a profile associated with the significant location. At a second time and at the significant location, the UE performs the type of operation related to the network connection. The performance of the type of operation at the second time is modified based on the information stored in the profile associated with the significant location.

公开(公告)号：US11812333B2

公开(公告)日：2023-11-07

申请号：US17663118

申请日：2022-05-12

Applicant: Apple Inc.

Inventor： Srirang A. Lovlekar ,  Murtaza A. Shikari ,  Zheng Lu ,  Pankaj Subhash Vasandani ,  Srinivasan Nimmala ,  Sethuraman Gurumoorthy ,  Viswanath Nagarajan ,  Lakshmi N. Kavuri ,  Sridhar Prakasam ,  Robert K. Kitchens ,  Vijay Venkataraman ,  Muthukumaran Dhanapal ,  Xiangpeng Jing

IPC: H04W4/02 ,  H04W64/00 ,  H04W8/18 ,  H04W8/08 ,  H04W76/11 ,  H04W8/30 ,  H04W24/10 ,  H04B7/0456 ,  H04W74/08 ,  H04W80/02 ,  H04W36/08 ,  H04W84/12

CPC classification number: H04W4/023 ,  H04B7/0456 ,  H04W8/08 ,  H04W8/30 ,  H04W24/10 ,  H04W36/08 ,  H04W74/0833 ,  H04W76/11 ,  H04W80/02 ,  H04W84/12

Abstract: A device and method for a user equipment (UE) to implement power savings mechanisms when operating within a significant location. The UE identifies that the UE is at a significant location. The significant location is a location relative to a currently camped cell of a network. At a first time and at the significant location, the UE performs a type of operation related to the network connection. The UE stores information corresponding to the performance of the type of operation at the first time in a profile associated with the significant location. At a second time and at the significant location, the UE performs the type of operation related to the network connection. The performance of the type of operation at the second time is modified based on the information stored in the profile associated with the significant location.

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.