Small data transmission (SDT) procedures and failure recovery during an inactive state
US11963248B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 18, 2021 |
| Grant date | Apr 16, 2024 |
| Priority date | — |
| Expiry date | Apr 14, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W76/30
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A computer-readable storage medium stores instructions for execution by one or more processors of a UE. The instructions configure the UE for small data transmission (SDT) in a 5G NR network and cause the UE to perform operations comprising detecting while in an RRC_Inactive state, a radio link failure during a first SDT of UL data to a base station. A secure key for a second SDT is generated based on the radio link failure. A configuration message including an indication of the second SDT is transmitted to the base station. A response message including a UL grant is received from the base station. The UL data is encoded for the second SDT using the secure key. The second SDT is performed using the UL grant while the UE is in the RRC_Inactive state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.