Ultra-wideband communication node and method for contention based ranging
US12137339B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 28, 2022 |
| Grant date | Nov 5, 2024 |
| Priority date | — |
| Expiry date | Dec 8, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/80
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Disclosed is a UWB communication node comprising: a UWB communication unit configured to transmit one or more messages, to a plurality of external responder nodes and comprising a ranging control message defining a contention period, and further configured to receive one or more responses from said responder nodes during said contention period, each response including a response payload; a processor unit configured to use a common cryptographic session key to encrypt said messages; wherein the processing unit is further configured to use responder-specific session keys to decrypt the response payloads; wherein each individual one of said responder-specific cryptographic session keys is a unique key shared between the node and one of the external responder nodes. Corresponding systems methods and an associated computer program are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.