IMS enabled attach procedure for LTE
First Claim
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1. A method performed by an internet protocol (IP) multimedia subsystem (IMS) enabled wireless transmit/receive unit (WTRU), the method comprising:
- on a condition that the WTRU is powered up and unattached, activating IMS network services before performing a registration of the WTRU with a network using an ATTACH procedure, wherein the ATTACH procedure includes transmitting an attach request message including an IMS session initiation protocol (SIP) Registration Request; and
receiving an ATTACH ACCEPT information element that includes at least one of a private user identity and a public user identity for IMS authentication and an authentication message including both authentication of the WTRU and authentication of an IMS service requested by the WTRU via the IMS SIP Registration Request.
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Abstract
Method and apparatus for attaching an IMS enabled wireless transmit/receive unit (WTRU) to a long term evolution (LTE) wireless network. With one attach request, the WTRU registers and authenticates itself to the network, obtains an IP address allocation, and SIP registration.
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12 Claims
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1. A method performed by an internet protocol (IP) multimedia subsystem (IMS) enabled wireless transmit/receive unit (WTRU), the method comprising:
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on a condition that the WTRU is powered up and unattached, activating IMS network services before performing a registration of the WTRU with a network using an ATTACH procedure, wherein the ATTACH procedure includes transmitting an attach request message including an IMS session initiation protocol (SIP) Registration Request; and receiving an ATTACH ACCEPT information element that includes at least one of a private user identity and a public user identity for IMS authentication and an authentication message including both authentication of the WTRU and authentication of an IMS service requested by the WTRU via the IMS SIP Registration Request. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification