MOBILE COMMUNICATION METHOD, MOBILE COMMUNICATION SYSTEM, SUBSCRIBER MANAGEMENT SERVER DEVICE, AND EXCHANGE STATION

摘要

Provided is a mobile communication method which comprises: a step in which a subscriber management server device (HSS) decides between a WCDMA radio access network and an LTE radio access network as a standby radio access network for a mobile station (UE) based on CSFB capability presence/absence information included in "Update GPRS Location/Update Location Request" of the received mobile station (UE); and a step in which the mobile station (UE) goes into a standby state in the standby radio access network for the mobile station (UE) decided by the subscriber management server device (HSS).