Abstract
Disclosed is a method for transitioning a remote station from a current serving network node having an enhanced security context to a new serving network node. In the method the remote station provides at least one legacy key and generates at least one session key based on an information element associated with the enhanced security context. The remote station forwards a first message having the information element to the new serving network node. The remote station receives a second message from the new serving network node having a response based on either the legacy key or the session key. The remote station determines that the new serving network node does not support the enhanced security context if the response of the second message is based on the legacy key. Accordingly the remote station protects communications based on the legacy key upon determining that the enhanced security context is not supported.
| Technology | Declaration Information | Specification Information | Explicitly Disclosed | Patent Type | |||||
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| Declaration Date | Declaration Reference | Declaring Company | Specification Number | ||||||
| 5G | 07/06/2018 | ISLD-201807-054 | QUALCOMM INC | No | Family Member | ||||
Specification Information
Specification Information
Technologies
Family Information
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| All Pending Patents In Patent Family : | ---- |
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| AU2011239421B2 | 5G | 07/06/2018 | ISLD-201807-054 | QUALCOMM INC | No | Family Member | ||||
| BR112012026451A2 | 5G | 07/06/2018 | ISLD-201807-054 | QUALCOMM INC | No | Family Member | ||||
| CA2796511A1 | 5G | 07/06/2018 | ISLD-201807-054 | QUALCOMM INC | No | Family Member | ||||
| CA2796511C | 5G | 07/06/2018 | ISLD-201807-054 | QUALCOMM INC | No | Family Member | ||||
| CN102845105A | 5G | 07/06/2018 | ISLD-201807-054 | QUALCOMM INC | No | Family Member | ||||
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| EP2559292A1 | 5G | 07/06/2018 | ISLD-201807-054 | QUALCOMM INC | No | Family Member | ||||
| EP2559292B1 | 5G | 07/06/2018 | ISLD-201807-054 | QUALCOMM INC | No | Family Member | ||||
| HK1179804A1 | 5G | 07/06/2018 | ISLD-201807-054 | QUALCOMM INC | No | Family Member | ||||
| IL222458A | 5G | 07/06/2018 | ISLD-201807-054 | QUALCOMM INC | No | Family Member | ||||
| JP2013526159A | 5G | 07/06/2018 | ISLD-201807-054 | QUALCOMM INC | No | Family Member | ||||
| JP5649248B2 | 5G | 07/06/2018 | ISLD-201807-054 | QUALCOMM INC | No | Family Member | ||||
| KR101474094B1 | 5G | 07/06/2018 | ISLD-201807-054 | QUALCOMM INC | No | Family Member | ||||
| KR20130018883A | 5G | 07/06/2018 | ISLD-201807-054 | QUALCOMM INC | No | Family Member | ||||
| MY154249A | 5G | 07/06/2018 | ISLD-201807-054 | QUALCOMM INC | No | Family Member | ||||
| RU2012148695A | 5G | 07/06/2018 | ISLD-201807-054 | QUALCOMM INC | No | Family Member | ||||
| RU2525083C2 | 5G | 07/06/2018 | ISLD-201807-054 | QUALCOMM INC | No | Family Member | ||||
| SG184878A1 | 5G | 07/06/2018 | ISLD-201807-054 | QUALCOMM INC | No | Family Member | ||||
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| US9191812B2 | 5G | 07/06/2018 | ISLD-201807-054 | QUALCOMM INC | No | Family Member | ||||
| ZA201208617B | 5G | 07/06/2018 | ISLD-201807-054 | QUALCOMM INC | No | Family Member | ||||
| Publication No | Technology | Declaration Information | Specification Information | Explicitly Disclosed | Patent Type | Status | National Phase Entries | |||||
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Technologies
Mobility and handover
Product
Use Cases
Services
Claim
1. A method for transitioning a remote station from a current serving network node having first security context to a new serving network node, comprising:', 'the remote station providing at least one legacy key associated with a second security context, wherein the first security context includes a security property that is not supported by the second security context;', 'the remote station generating at least one session key, in accordance with the first security context, based on an information element associated with the first security context;', 'the remote station forwarding a first message to the new serving network node, wherein the first message includes the information element associated with the first security context;', 'the remote station receiving, in response to the first message, a second message from the new serving network node, wherein the second message has a response based on either the at least one legacy key or the at least one session key;', 'the remote station determining that the new serving network node does not support the first security context if the response of the second message is based on the at least one legacy key; and', 'the remote station protecting communications based on the at least one legacy key upon determining that the new serving network node does not support the first security context.
2. A method for transitioning as defined in claim 1, wherein the information element comprises a count value.
3. A method for transitioning as defined in claim 2, wherein the count value is updated for a session.
4. A method for transitioning as defined in claim 1, wherein the first security context is an enhanced UMTS security context, and the second security context is a legacy security context.
5. A method for transitioning as defined in claim 1, wherein the remote station comprises a mobile user equipment.
6. A method for transitioning as defined in claim 1, wherein the second message includes a message authentication code (MAC), and the remote station determines that the response is based on the at least one legacy key by determining that the MAC was calculated using the at least one legacy key.
7. A remote station, comprising:', 'means for providing at least one legacy key associated with a second security context, wherein a first security context of a current serving network node includes a security property that is not supported by the second security context;', 'means for generating at least one session key, in accordance with the first security context, based on an information element associated with the first security context;', 'means for forwarding a first message to a new serving network node, wherein the first message includes the information element signaling associated with the first security context;', 'means for receiving, in response to the first message, a second message from the new serving network node, wherein the second message has a response based on either the at least one legacy key or the at least one session key;', 'means for determining that the new serving network node does not support the first security context if the response of the second message is based on the at least one legacy key; and', 'means for protecting communications based on the at least one legacy key upon determining that the new serving network node does not support the first security context.
8. A remote station as defined in claim 7, wherein the information element comprises a count value.
9. A remote station as defined in claim 8, wherein the count value is updated for a session
10. A remote station as defined in claim 7, wherein the first security context is an enhanced UMTS security context, and the second security context is a legacy security context
11. A remote station, comprising:', 'a processor configured to:', 'provide at least one legacy key associated with a second security context, wherein a first security context of a current serving network node includes a security property that is not supported by the second security context;', 'generate at least one session key, in accordance with the first security context, based on the legacy key and an information element associated with the first security context;', 'forward a first message to a new serving network node, wherein the first message includes the information element associated with the first security context;', 'receive, in response to the first message, a second message from the new serving network node, wherein the second message has a response based on either the at least one legacy key or the at least one session key;', 'determine that the new serving network node does not support the first security context if the response of the second message is based on the at least one legacy key; and', 'protect communications based on the at least one legacy key upon determining that the new serving network node does not support the first security context
12. A remote station as defined in claim 11, wherein the information element comprises a count value
13. A remote station as defined in claim 12, wherein the count value is updated for a session
14. A remote station as defined in claim 11, wherein the first security context is an enhanced UMTS security context, and the second security context is a legacy security context
15. A computer program product, comprising :', 'computer-readable storage medium, comprising:', 'code for causing a computer to provide at least one legacy key associated with a second security context, wherein a first security context of a current serving network node includes a security property that is not supported by the second security context;', 'code for causing a computer to generate at least one session key, in accordance with the first security context, based on an information element associated with the first security context;', 'code for causing a computer to forward a first message to a new serving network node, wherein the first message includes the information element associated with the first security context;', 'code for causing a computer to receive, in response to the first message, a second message from the new serving network node, wherein the second message has a response based on either the at least one legacy key or the at least one session key;', 'code for causing a computer to determine that the new serving network node does not support the first security context if the response of the second message is based on the at least one legacy key; and', 'code for causing a computer to protect communications based on the at least one legacy key upon determining that the new serving network node does not support the first security context
16. A computer program product as defined in claim 15, wherein the information element comprises a count value
17. A computer program product as defined in claim 16, wherein the count value is updated for a session
18. A computer program product as defined in claim 15, wherein the first security context is an enhanced UMTS security context, and the second security context is a legacy security context.']
Associated Portfolios
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SUMMARY
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Patent number:WO2011130681A1
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The information in blue was extracted from the third parties (Standard Setting Organisation, Espacenet)
The information in grey was provided by the patent holder
The information in purple was extracted from the FrandAvenue
Explicitly disclosed patent:openly and comprehensibly describes all details of the invention in the patent document.
Implicitly disclosed patent:does not explicitly state certain aspects of the invention, but still allows for these to be inferred from the information provided.
Basis patent:The core patent in a family, outlining the fundamental invention from which related patents or applications originate.
Family member:related patents or applications that share a common priority or original filing.