MOBILE COMMUNICATION METHOD, MOBILE MANAGEMENT NODE, SERVING GATEWAY DEVICE, PACKET DATA NETWORK GATEWAY DEVICE, POLICY CONTROLLER AND PACKET SWITCH

摘要

PROBLEM TO BE SOLVED: To avoid occurrence of unwanted network traffic in "SRVCC", and to switch voice communication of UE#1 appropriately.

SOLUTION: A mobile communication method of the present invention comprises: a step where a UE switches a destination wireless access network from E-UTRAN to UTRAN/GERAN; a step where an MME receives "Delete Bearer Request" for a voice communication packet bearer from an S-GW; and a step where the MME transmits "Delete Bearer Response" for the "Delete Bearer Request" to the S-GW without instructing the UE#1 or E-UTRAN to release the voice communication packet bearer when a core bearer disconnection flag is set in the received "Delete Bearer Request".

COPYRIGHT: (C)2012,JPO&INPIT