| 摘要 |
To address the need for more resource efficient methods of providing service in multi-RAN communication systems ( 600 ), various embodiments are described for informing a cross-paging RAN that a targeted remote unit ( 601 ) is not accepting a service request, for informing a serving RAN that the targeted remote unit is accepting the service request, and for informing an IMS (IP Multimedia Subsystem) network ( 611 ) that the targeted remote unit is moving from the serving RAN to the cross-paging RAN (or simply moving to another RAN without being cross-paged). Thus, embodiments such as those described herein can enable multi-RAN communication systems to more quickly release unneeded resources, to reduce the amount of unnecessary paging, and to minimize cross-paging when an IMS core network is available to deliver voice over IP (VoIP) calls.
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