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), for providing non-packet switched service in a target radio access technology (RAT) network, the method comprising:
- receiving a circuit switched (CS) service notification message including an explicit indication that indicates an identity the WTRU is to use after performing an inter-system change from a source RAT network to a target RAT network; and
transmitting a paging response message including the explicit indication after the inter-system change is performed.
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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), for providing non-packet switched service in a target radio access technology (RAT) network, the method comprising:
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receiving a circuit switched (CS) service notification message including an explicit indication that indicates an identity the WTRU is to use after performing an inter-system change from a source RAT network to a target RAT network; and transmitting a paging response message including the explicit indication after the inter-system change is performed. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method, implemented by a wireless transmit/receive unit (WTRU), for providing non-packet switched service in a target radio access technology (RAT) network, the method comprising:
receiving an evolved universal terrestrial radio access network (E-UTRAN) mobility message including information related to the target RAT network during an inter-system change from a source RAT network to a target RAT network, wherein the mobility message indicates whether or not a Gs interface is supported in the target RAT network. - View Dependent Claims (9)
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10. A method, implemented by a wireless transmit/receive unit (WTRU), for providing non-packet switched service in a target radio access technology (RAT) network, the method comprising:
receiving at least one target RAT network system information message including a general packet radio service (GPRS) cell option information element (IE).
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11. A wireless transmit/receive unit (WTRU) for providing non-packet switched service in a target radio access technology (RAT) network, the WTRU comprising:
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a receiver configured to receive a circuit switched (CS) service notification message including an explicit indication that indicates an identity the WTRU is to use after performing an inter-system change from a source RAT network to a target RAT network; and a transmitter configured to transmit a paging response message including the explicit indication after the inter-system change is performed. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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18. A wireless transmit/receive unit (WTRU) for providing non-packet switched service in a target access technology (RAT) network, the WTRU comprising:
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a receiver configured to receive a circuit switched (CS) service notification message, wherein the WTRU has not been allocated a valid temporary mobile subscriber identity (TMSI); and a transmitter configured to transmit a paging response message including an international mobile subscriber identity (IMSI) that identifies the WTRU after an inter-system change is performed from a source RAT network to a target RAT network.
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19. A wireless transmit/receive unit (WTRU) for providing non-packet switched service in a target access technology (RAT) network, the WTRU comprising:
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a transmitter; and a receiver configured to receive an evolved universal terrestrial radio access network (E-UTRAN) mobility message including information related to the target RAT network during an inter-system change from a source RAT network to a target RAT network, wherein the mobility message indicates whether or not a Gs interface is supported in the target RAT network.
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20. A wireless transmit/receive unit (WTRU) for providing non-packet switched service in a target access technology (RAT) network, the WTRU comprising:
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a transmitter; and a receiver configured to receive at least one target RAT network system information message including a general packet radio service (GPRS) cell option information element (IE).
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Specification