ACCESS STRATUM (AS) SECURITY FOR A CENTRALIZED RADIO ACCESS NETWORK (C-RAN)
First Claim
1. A method for wireless communication by a User Equipment (UE), comprising:
- receiving a command to handover the UE from a source base station (BS) to a target BS, the command including at least an indication to generate at least one key specific to the target BS and a freshness parameter for generating the at least one key, wherein at least a portion of a control plane (CP) protocol layer is implemented at the target BS;
generating the at least one key based at least on the freshness parameter and a master key, the master key associated with a Radio Access Network (RAN) network entity controlling at least the source BS; and
exchanging control signaling with the target BS based on the CP protocol layer using the at least one key.
1 Assignment
0 Petitions
Accused Products
Abstract
Techniques for secure control plane communications between a User Equipment (UE) and a gNB are provided. A RAN network entity decides to handover a UE from a source base station (BS) to a target BS, wherein the RAN network entity controls a plurality of BSs including at least one of the source BS or the target BS, and wherein at least a portion of a control plane (CP) protocol layer is implemented at the target BS. The network entity generates at least one key specific to the target BS, based on a master key and a freshness parameter, the master key associated with the network entity. The network entity transmits an indication of the at least one key to the target BS, wherein the target BS exchanges control signaling with the UE based on the CP protocol layer using the at least one key.
12 Citations
32 Claims
-
1. A method for wireless communication by a User Equipment (UE), comprising:
-
receiving a command to handover the UE from a source base station (BS) to a target BS, the command including at least an indication to generate at least one key specific to the target BS and a freshness parameter for generating the at least one key, wherein at least a portion of a control plane (CP) protocol layer is implemented at the target BS; generating the at least one key based at least on the freshness parameter and a master key, the master key associated with a Radio Access Network (RAN) network entity controlling at least the source BS; and exchanging control signaling with the target BS based on the CP protocol layer using the at least one key. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
-
-
12. A method for wireless communication by a Radio Access Network (RAN) network entity, comprising:
-
deciding to handover a UE from a source base station (BS) to a target BS, wherein the RAN network entity controls a plurality of BSs including at least one of the source BS or the target BS, and wherein at least a portion of a control plane (CP) protocol layer is implemented at the target BS; generating at least one key specific to the target BS, based on a master key and a freshness parameter, the master key associated with the network entity; and transmitting an indication of the at least one key to the target BS, wherein the target BS exchanges control signaling with the UE based on the CP protocol layer, wherein the control signaling is protected based on the at least one key. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
-
-
27. A User Equipment (UE), comprising:
at least one processor configured to; receive a command to handover the UE from a source base station (BS) to a target BS, the command including at least an indication to generate at least one key specific to the target BS and a freshness parameter for generating the at least one key, wherein at least a portion of a control plane (CP) protocol layer is implemented at the target BS; generate the at least one key based at least on the freshness parameter and a master key, the master key associated with a Radio Access Network (RAN) network entity controlling at least the source BS; and exchange control signaling with the target BS based on the CP protocol layer using the at least one key; and a memory coupled to the at least one processor. - View Dependent Claims (28, 29)
-
30. A Radio Access Network (RAN) network entity, comprising:
-
at least one processor configured to; decide to handover a UE from a source base station (BS) to a target BS, wherein the RAN network entity controls a plurality of BSs including at least one of the source BS or the target BS, and wherein at least a portion of a control plane (CP) protocol layer is implemented at the target BS; generate at least one key specific to the target BS, based on a master key and a freshness parameter, the master key associated with the network entity; and transmit an indication of the at least one key to the target BS, wherein the target BS exchanges control signaling with the UE based on the CP protocol layer, wherein the control signaling is protected based on the at least one key; and a memory coupled to the at least one processor. - View Dependent Claims (31, 32)
-
Specification