METHOD AND APPARATUS FOR PROVIDING NON-PACKET SWITCHED SERVICE IN A TARGET RADIO ACCESS TECHNOLOGY NETWORK
First Claim
1. A method implemented by a wireless transmit/receive unit (WTRU), the method comprising:
- receiving a circuit switched (CS) service notification message including a one bit information element (IE) having values that indicate one of an international mobile subscriber identity (IMSI) or a temporary mobile subscriber identity (TMSI) should be used after an inter-system change is performed; and
transmitting a paging response message using an identity in accordance with the IE after the inter-system change is performed.
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Accused Products
Abstract
A method and apparatus are described for providing non-packet switched service to a target radio access technology (RAT) network. A circuit switched (CS) service notification message is received by a wireless transmit/receive unit (WTRU). If the WTRU has been allocated a valid temporary mobile subscriber identity (TMSI), a paging response message including the valid TMSI is transmitted after an inter-system change is performed from a source RAT network to a target RAT network. The CS service notification message is for terminating a CS call request. The source RAT network may be a long term evolution (LTE) network, and the target RAT network may be a third generation partnership project (3GPP) network. Alternatively, if the WTRU has not been allocated a valid TMSI, a paging response message including an international mobile subscriber identity (IMSI) that identifies the WTRU is transmitted after the inter-system change.
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Citations
20 Claims
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1. A method implemented by a wireless transmit/receive unit (WTRU), the method comprising:
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receiving a circuit switched (CS) service notification message including a one bit information element (IE) having values that indicate one of an international mobile subscriber identity (IMSI) or a temporary mobile subscriber identity (TMSI) should be used after an inter-system change is performed; and transmitting a paging response message using an identity in accordance with the IE after the inter-system change is performed. - View Dependent Claims (2, 3, 4, 5, 10)
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6. A wireless transmit/receive unit (WTRU) comprising:
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a receiver configured to receive a circuit switched (CS) service notification message including a one bit information element (IE) having values that indicate one of an international mobile subscriber identity (IMSI) or a temporary mobile subscriber identity (TMSI) should be used after an inter-system change is performed; and a transmitter configured to transmit a paging response message using an identity in accordance with the IE after the inter-system change is performed. - View Dependent Claims (7, 8, 9)
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11. A method implemented at a network, the method comprising:
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transmitting a circuit switched (CS) service notification message including a one bit information element (IE) having values that indicate one of an international mobile subscriber identity (IMSI) or a temporary mobile subscriber identity (TMSI) should be used after an inter-system change is performed; and receiving a paging response message using an identity in accordance with the IE after the inter-system change is performed. - View Dependent Claims (12, 13, 14, 15)
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16. A network comprising:
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a transmitter configured to transmit a circuit switched (CS) service notification message including a one bit information element (IE) having values that indicate one of an international mobile subscriber identity (IMSI) or a temporary mobile subscriber identity (TMSI) should be used after an inter-system change is performed; and a receiver configured to receive a paging response message using an identity in accordance with the IE after the inter-system change is performed. - View Dependent Claims (17, 18, 19, 20)
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Specification