公开(公告)号：US20250016557A1

公开(公告)日：2025-01-09

申请号：US18896124

申请日：2024-09-25

Applicant: Texas Instruments Incorporated

Inventor： Archanaa SANTHANA KRISHNAN ,  Alexis Justine BURNIGHT ,  Ariton E. XHAFA

IPC: H04W12/041 ,  H04W12/0471

Abstract: A wireless interface includes: network formation circuitry configured to establish a wireless network between a primary node and a secondary node; data exchange circuitry configured to perform data exchanges between the primary node and the secondary node using secure sessions; and key refreshment circuitry configured to derive a new network key for the network based on a pre-shared key and a current network key concatenated with a session count. The new key is derived during at least one of the secure sessions.

公开(公告)号：US20230065059A1

公开(公告)日：2023-03-02

申请号：US17461887

申请日：2021-08-30

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Archanaa SANTHANA KRISHNAN ,  Alexis Justine BURNIGHT ,  Ariton E. XHAFA

IPC: H04W12/041 ,  B60L53/66 ,  H04L5/00

Abstract: A method for key refreshment in a wireless network system using a salt. The method includes receiving, from each of a plurality of secondary nodes communicably coupled to a primary node, a current session number. The current session numbers are compared to a session number at the primary node to identify a mismatch, and a salt is generated responsive to identifying the mismatch. The method further includes sending the salt to each of the plurality of secondary nodes having a current session number matching the session number at the primary node.

公开(公告)号：US20220332213A1

公开(公告)日：2022-10-20

申请号：US17233106

申请日：2021-04-16

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Ariton E. XHAFA ,  Torbjørn SØRBY ,  Minghua FU ,  Jesus Daniel TORRES BARDALES ,  Ramanuja VEDANTHAM ,  Alexis Justine BURNIGHT ,  Archanaa SANTHANA KRISHNAN

IPC: B60L58/10

Abstract: A vehicular battery management system (BMS) comprises a battery controller, a set of battery cells, a primary network node coupled to the battery controller, and a secondary network node coupled to the set of battery cells. The primary and secondary network nodes are configured to wirelessly communicate with each other using frames that share a common frame format. The frame format includes one or more bits and a status of the one or more bits indicates whether the secondary network node is to communicate with the primary network node on behalf of another secondary network node.

公开(公告)号：US20240381089A1

公开(公告)日：2024-11-14

申请号：US18779478

申请日：2024-07-22

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Archanaa SANTHANA KRISHNAN ,  Alexis Justine BURNIGHT ,  Ariton E. XHAFA

IPC: H04W12/069 ,  H04L9/08 ,  H04W12/041 ,  H04W12/0431 ,  H04W12/50

Abstract: Aspects of this description provide for a computer program product comprising computer executable instructions. In at least some examples, the instructions are executable by a controller to cause the controller to broadcast, in a data frame, a scan request to a node, the scan request including a certificate of the controller and a public authentication key of the controller, receive, in the data frame, a scan response from the node, the scan response including a certificate of the node and a public authentication key of the node, and perform pairing between the controller and the node based on the public authentication key of the node and a private authentication key of the controller.

公开(公告)号：US20240140254A1

公开(公告)日：2024-05-02

申请号：US18407719

申请日：2024-01-09

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Ariton E. XHAFA ,  Torbjørn SØRBY ,  Minghua FU ,  Jesus Daniel TORRES BARDALES ,  Ramanuja VEDANTHAM ,  Alexis Justine BURNIGHT ,  Archanaa SANTHANA KRISHNAN

IPC: B60L58/10

CPC classification number: B60L58/10 ,  B60L2240/42 ,  H04L67/12

Abstract: A vehicular battery management system (BMS) comprises a battery controller, a set of battery cells, a primary network node coupled to the battery controller, and a secondary network node coupled to the set of battery cells. The primary and secondary network nodes are configured to wirelessly communicate with each other using frames that share a common frame format. The frame format includes one or more bits and a status of the one or more bits indicates whether the secondary network node is to communicate with the primary network node on behalf of another secondary network node.

公开(公告)号：US20230051689A1

公开(公告)日：2023-02-16

申请号：US17399793

申请日：2021-08-11

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Archanaa SANTHANA KRISHNAN ,  Alexis Justine BURNIGHT ,  Ariton E. XHAFA

IPC: H04W12/069 ,  H04W12/50 ,  H04W12/041 ,  H04L9/08 ,  H04W12/0431

Abstract: Aspects of this description provide for a computer program product comprising computer executable instructions. In at least some examples, the instructions are executable by a controller to cause the controller to broadcast, in a data frame, a scan request to a node, the scan request including a certificate of the controller and a public authentication key of the controller, receive, in the data frame, a scan response from the node, the scan response including a certificate of the node and a public authentication key of the node, and perform pairing between the controller and the node based on the public authentication key of the node and a private authentication key of the controller.

公开(公告)号：US20220360979A1

公开(公告)日：2022-11-10

申请号：US17314865

申请日：2021-05-07

Applicant: Texas Instruments Incorporated

Inventor： Archanaa SANTHANA KRISHNAN ,  Alexis Justine BURNIGHT ,  Ariton E. XHAFA

IPC: H04W12/041 ,  H04W12/033 ,  H04W12/0471 ,  H04W76/10

Abstract: A wireless interface includes: network formation circuitry configured to establish a wireless network between a primary node and a secondary node; data exchange circuitry configured to perform data exchanges between the primary node and the secondary node using secure sessions; and key refreshment circuitry configured to derive a new network key for the network based on a pre-shared key and a current network key concatenated with a session count. The new key is derived during at least one of the secure sessions.