US 9,813,971 B2
Mobile communication method and mobile communication system
Katsutoshi Nishida, Tokyo (JP); and Toshiyuki Tamura, Tokyo (JP)
Assigned to NEC CORPORATION, Tokyo (JP)
Filed by NEC CORPORATION, Tokyo (JP)
Filed on Jul. 29, 2015, as Appl. No. 14/812,147.
Application 14/812,147 is a continuation of application No. 13/701,761, previously published as PCT/JP2011/056329, filed on Mar. 17, 2011.
Claims priority of application No. 2010-129116 (JP), filed on Jun. 4, 2010.
Prior Publication US 2015/0334605 A1, Nov. 19, 2015
This patent is subject to a terminal disclaimer.
Int. Cl. H04B 7/00 (2006.01); H04W 4/00 (2009.01); H04L 12/28 (2006.01); H04B 7/216 (2006.01); H04W 40/02 (2009.01); H04W 72/04 (2009.01); H04M 7/12 (2006.01); H04W 36/00 (2009.01); H04W 88/16 (2009.01); H04L 29/06 (2006.01)
CPC H04W 40/02 (2013.01) [H04L 65/104 (2013.01); H04L 65/1086 (2013.01); H04M 7/1205 (2013.01); H04W 36/0022 (2013.01); H04W 36/0066 (2013.01); H04W 72/0406 (2013.01); H04L 65/1016 (2013.01); H04M 2207/187 (2013.01); H04W 88/16 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A mobile communication method in a mobile communication system for SRVCC (Single Radio Voice Call Continuity) including a mobile station, a first radio access network that does not support circuit-switched communications, a second radio access network that supports the circuit-switched communications, a gateway within a serving network of the mobile station for switching a path for voice communications between the mobile station and a communication partner of the mobile station, from a path using the first radio access network, to a path using the second radio access network, and a control node within the serving network of the mobile station, the mobile communication method comprising:
sending, by the mobile station, a registration request to the control node;
sending, by the control node, a registration response to the mobile station;
transmitting, by the mobile station, an INVITE signal to the control node; and
deciding, by the control node, whether to allocate a resource of the gateway based on SRVCC capability of the mobile station.