Method to retrieve security keys of UE in gateways
Methods, systems, and computer readable media are presented for retrieving security keys in gateways. In one example embodiment, a method is presented. The method of retrieving security keys from a User Equipment (UE) in gateways includes retrieving, by a HetNet Gateway (HNG) as the HNG virtualizes an eNodeB towards n Mobility Management Entity (MME) through a first message and a second message exchange, a fresh Next Hop, Next Hop Chaining Count {NH, NCC} pair from the MME; and mocking, by the HNG, an X2 handover towards the MME by sending a third message with required Information Elements filled when a fourth message from the eNodeB reaches the HNG.
1. A method of retrieving security keys from a User Equipment (UE) in gateways, comprising:
retrieving, by a HetNet Gateway (HNG) as the HNG virtualizes an eNodeB towards a Mobility Management Entity (MME) through a first message and a second message exchange, a fresh Next Hop, Next Hop Chaining Count {NH, NCC} pair from the MME; and
mocking, by the HNG, an X2 handover towards the MME by sending a third message with required Information Elements filled when a fourth message from the eNodeB reaches the HNG.
2. The method of claim 1 wherein the first message comprises a PATH SWITCH REQUEST.
3. The method of claim 1 wherein the second message comprises a PATH SWITCH REQUEST ACK.
4. The method of claim 3 wherein the third message comprises a HANDOVER REQEST.
5. The method of claim 1 wherein the fourth message comprises a HANDOVER REQUEST ACK message.
6. The method of claim 1 wherein the fresh {NH, NCC} are derived using vertical key derivation.
7. A system for retrieving security keys in gateways, comprising:
a HetNet Gateway (HNG), wherein the HNG retrieves, as the HNG virtualizes an eNodeB towards a Mobility Management Entity (MME) through a first message and a second message exchange, a fresh Next Hop, Next Hop Chaining Count {NH, NCC} pair from the MME; and
mocks an X2 handover towards the MME by sending a third message with required Information Elements filled when a fourth message from the eNodeB reaches the HNG.
8. The system of claim 7 wherein the first message comprises a PATH SWITCH REQUEST.
9. The system of claim 7 wherein the second message comprises a PATH SWITCH REQUEST ACK.
10. The system of claim 9 wherein the third message comprises a HANDOVER REQEST.
11. The system of claim 7 wherein the fourth message comprises a HANDOVER REQUEST ACK message.
12. The system of claim 7 wherein the fresh {NH, NCC} are derived using vertical key derivation.
13. A non-transitory computer-readable medium containing instructions for retrieving security keys from a User Equipment (UE) in gateways, which, when executed, cause a network node to perform steps comprising:
retrieving, by a HetNet Gateway (HNG) as the HNG virtualizes an eNodeB towards a Mobility Management Entity (MME) through a first message and a second message exchange, a fresh Next Hop, Next Hop Chaining Count {NH, NCC} pair from the MME; and
mocking, by the HNG, an X2 handover towards the MME by sending a third message with required Information Elements filled when a fourth message from the eNodeB reaches the HNG.
14. The computer-readable medium of claim 13 wherein the instructions for the first message comprise instructions for a PATH SWITCH REQUEST.
15. The computer-readable medium of claim 13 wherein the instructions for the second message comprise the instructions for a PATH SWITCH REQUEST ACK.
16. The computer-readable medium of claim 15 wherein the instructions for a third message comprise the instructions for a HANDOVER REQEST.
17. The computer-readable medium of claim 13 wherein the instructions for a fourth message comprises the instructions for a HANDOVER REQUEST ACK message.
18. The computer-readable medium of claim 13 further comprising instructions wherein the fresh {NH, NCC} are derived using vertical key derivation.