US 12,231,877 B2
Security key generation in wireless networks
Keeth Saliya Jayasinghe Laddu, Espoo (FI); and Laddu Praneeth Jayasinghe, Piliyandala (LK)
Assigned to NOKIA TECHNOLOGIES OY, Espoo (FI)
Appl. No. 17/766,040
Filed by NOKIA TECHNOLOGIES OY, Espoo (FI)
PCT Filed Oct. 4, 2019, PCT No. PCT/EP2019/076896
§ 371(c)(1), (2) Date Apr. 1, 2022,
PCT Pub. No. WO2021/063518, PCT Pub. Date Apr. 8, 2021.
Prior Publication US 2022/0338002 A1, Oct. 20, 2022
Int. Cl. H04W 12/041 (2021.01); H04L 9/08 (2006.01)
CPC H04W 12/041 (2021.01) [H04L 9/0875 (2013.01)] 19 Claims
OG exemplary drawing
 
1. An apparatus for a first wireless node, said apparatus comprising:
at least one processor; and
at least one memory including computer program code, the at least one memory and the computer program code being configured to, with the at least one processor, cause the apparatus at least to perform:
transmitting to a second wireless node timing information for security key adoption and information indicative of a third wireless node,
transmitting to the third wireless node a message to estimate a channel between the second wireless node and the third wireless node, the message to estimate the channel comprising information indicative of the second wireless node and channel measurement resource information associated with the second wireless node,
obtaining a security key generated on the basis of channel estimation information based on estimation of the channel by the third wireless node, and
applying the security key for encrypted data transmission between the first wireless node and the second wireless node.