Methods and devices for parameter exchange during emergency access
AssigneeTelefonaktiebolaget LM Ericsson (publ)
InventorsChristine JOST, Vesa LEHTOVIRTA, Ivo SEDLACEK, Vesa TORVINEN
Life of this patent
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Abstract
Enabling the exchange of connection parameters where a user equipment (UE) lacks a secret shared with the network (e.g. a server), such as key materials, and lacks a valid certificate. In some embodiments, the connection parameters may be exchanged via EAP messages. In certain aspects, and particularly with respect to emergency attach, a simplified protocol is used with limited overhead because the UE does not attempt to authenticate the network, and the network does not attempt to authenticate the UE.
Claims33
A method of exchanging connection parameters using Extensible Authentication Protocol, EAP, messages, the method comprising:
- receiving, at a server, a first message transmitted by a user equipment, UE, wherein said first message indicates an emergency attach request;
- the server determining, based at least in part on said first message, that an EAP authentication of said UE cannot proceed;
- and
- the server responding to the first message, wherein the step of responding to the first message comprises:
- the server generating a second message, wherein said second message comprises one or more connection parameters;
- and
- the server transmitting to the UE said second message.
(canceled)
A server comprising at least one processor;
- and a memory, said memory comprising instructions executable by said at least one processor, whereby said server is configured to:
- receive a first message transmitted by a user equipment, UE, wherein said first message indicates an emergency attach request;
- determine, based at least in part on said first message, that an EAP authentication of said UE cannot proceed;
- and
- respond to the first message, wherein responding to the first message comprises:
- generating a second message, wherein said second message comprises one or more connection parameters;
- and
- transmitting to the UE said second message,
- wherein said messages are EAP messages.
(canceled)
(canceled)
A method of exchanging connection parameters using Extensible Authentication Protocol, EAP, messages, the method comprising:
- sending, to a server from a user equipment UE, a first message indicating an emergency attach request;
- and
- the UE receiving a second message from the server in response to the first message,
- wherein said second message comprises one or more connection parameters and said sending and receiving is enabled without mutual authentication between the server and the UE.
27-44. (canceled)
A UE comprising at least one processor;
- and a memory, said memory comprising instructions executable by said at least one processor, whereby said UE is configured to:
- send, to a server, a first message indicating an emergency attach request;
- and
- receive a second message from the server in response to the first message,
- wherein said second message comprises one or more connection parameters and said messages are EAP messages and said server and said UE are not mutually authenticated.
46-48. (canceled)
A method of exchanging connection parameters using Extensible Authentication Protocol, EAP, messages, the method comprising:
- receiving at a server, a first message transmitted by a user equipment, UE, wherein said first message indicates an emergency attach request;
- the server responding to the first message, wherein the step of responding to the first message comprises the server requesting an International Mobile Equipment Identity (IMEI) from the UE,
- wherein said server is configured to accept an unauthenticated emergency session over WLAN.
(canceled)
52-55. (canceled)
Dependencies are inferred from the claim text.