Scheme for resolving authentication in a wireless packet data network after a key update
First Claim
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1. A method for resolving authentication of a mobile node disposed in a wireless packet data network, comprising:
- upon being rendered in a Simple Internet Protocol (SIP) service mode, attempting by said mobile node to negotiate a SIP connection with a packet data serving node (PDSN) of said wireless packet data network;
responsive to a first authentication protocol proposed by said PDSN, counter-proposing by said mobile node of a second authentication protocol for use; and
upon acknowledging said second authentication protocol by said PDSN, effectuating an authentication procedure in accordance with said second authentication protocol, wherein said authentication procedure uses a set of authentication keys, a first one provided with said mobile node and a second one provided with said PDSN, that have been updated in a key update process.
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Abstract
In one embodiment, a scheme is disclosed for resolving authentication of a mobile node that negotiates with a packet data serving node (PDSN) for establishing a Simple IP (SIP) connection after encountering a failure in Mobile IP (MIP) service mode.
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Citations
28 Claims
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1. A method for resolving authentication of a mobile node disposed in a wireless packet data network, comprising:
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upon being rendered in a Simple Internet Protocol (SIP) service mode, attempting by said mobile node to negotiate a SIP connection with a packet data serving node (PDSN) of said wireless packet data network;
responsive to a first authentication protocol proposed by said PDSN, counter-proposing by said mobile node of a second authentication protocol for use; and
upon acknowledging said second authentication protocol by said PDSN, effectuating an authentication procedure in accordance with said second authentication protocol, wherein said authentication procedure uses a set of authentication keys, a first one provided with said mobile node and a second one provided with said PDSN, that have been updated in a key update process. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A system for resolving authentication of a mobile node disposed in a wireless packet data network, comprising:
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means associated with said mobile node for negotiating a Simple Internet Protocol (SIP) connection with a packet data serving node (PDSN) of said wireless packet data network, said means operating responsive to said mobile node being rendered in a SIP service mode;
means associated with said mobile node for counter-proposing a second authentication protocol for use after rejecting a first authentication protocol proposed by said PDSN; and
means, operable upon acknowledging said second authentication protocol by said PDSN, for effectuating an authentication procedure in accordance with said second authentication protocol, wherein said authentication procedure uses a set of authentication keys, a first one provided with said mobile node and a second one provided with said PDSN, that have been updated in a key update process. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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18. A mobile node operable in a wireless packet data network, comprising:
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logic for negotiating a Simple Internet Protocol (SIP) connection with a packet data serving node (PDSN) of said wireless packet data network, said logic operating responsive to said mobile node being rendered in a SIP service mode;
logic for counter-proposing a second authentication protocol for use after rejecting a first authentication protocol proposed by said PDSN; and
logic for effectuating an authentication procedure in accordance with said second authentication protocol once said second authentication protocol is acknowledged by said PDSN, wherein said authentication procedure uses a set of authentication keys, a first one provided with said mobile node and a second one provided with said PDSN, that have been updated in a key update process. - View Dependent Claims (19, 20, 21, 22, 23, 24)
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25. A packet data serving node (PDSN) operable in a wireless packet data network, comprising:
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logic for determining that a mobile node has updated a set of authentication keys provided in accordance with a particular authentication protocol for authenticating said mobile node, said set of authentication keys including a first one provided with said mobile node and a second one provided with said PDSN; and
logic for effectuating an authentication procedure in accordance with said particular authentication protocol when said mobile node attempts to negotiate a Simple Internet Protocol (SIP) connection with said PDSN upon being rendered in a SIP service mode, wherein said authentication procedure uses said set of authentication keys that have been updated in a key update process. - View Dependent Claims (26, 27, 28)
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Specification