Wireless telecommunications apparatus and methods
US11283777B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 27, 2018 |
| Grant date | Mar 22, 2022 |
| Priority date | — |
| Expiry date | Dec 1, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W92/10
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A first network access node for use with a handover procedure for a terminal device involving the first network access node and a second network access node. The first network access is configured to receive a block of uplink data from the terminal device and establish whether the block of data has been ciphered by the terminal device using a cipher key corresponding to a first cipher key or to a second cipher key. In response to establishing the block of data has been ciphered using a cipher key corresponding to the first cipher key, decipher the block of data using the first cipher key. In response to establishing the block of data has been ciphered using a cipher key corresponding to the second cipher key, forward the block of data to the second network access node.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.