US 12,445,836 B2
Distributed unit node, user equipment, and methods in a wireless communications network
Prajwol Kumar Nakarmi, Sollentuna (SE); and Oumer Teyab, Montreal (CA)
Assigned to Telefonaktiebolaget LM Ericsson (Publ), Stockholm (SE)
Appl. No. 18/027,681
Filed by Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
PCT Filed Sep. 30, 2020, PCT No. PCT/SE2020/050917
§ 371(c)(1), (2) Date Mar. 22, 2023,
PCT Pub. No. WO2022/071836, PCT Pub. Date Apr. 7, 2022.
Prior Publication US 2023/0388790 A1, Nov. 30, 2023
Int. Cl. H04L 9/00 (2022.01); H04W 12/0431 (2021.01); H04W 12/106 (2021.01); H04W 12/79 (2021.01)
CPC H04W 12/0431 (2021.01) [H04W 12/106 (2021.01); H04W 12/79 (2021.01)] 20 Claims
OG exemplary drawing
 
17. A User Equipment, UE, configured to handle a message in a communication between the UE, a Distributed Unit, DU, node, and a Central Unit, CU, node in a wireless communications network, the UE further being configured to:
obtain a first security key adapted to be associated with the CU node, and a secondary security key adapted to be associated with the DU node, a message security protected with the first security key being arranged to not be usable by the DU node;
determine which one out of the first security key and the secondary security key that is to be used for at least a part of a message, for security protection;
when determining that the secondary security key is used for at least a part of a message for security protection, communicate the message with the DU node, wherein at least part message is arranged to be security protected with the secondary security key; and
the security protection with the secondary security key being adapted to enable the DU node to use the at least the part of the message, and take actions related to the communication based on information in the security processed message.