Patent ID: 8824399
Filing Date: 2014-09-02
Classification: H04B,H04W

Abstract:
1. A mobile communication method comprising the steps of: after a mobile station having radio connection with a radio access network apparatus leaves a mobile coverage area of a Wideband Code Division Multiple Access (WCDMA) mobile communication system, performing, by the mobile station, location registration to a mobile communication system of a Long Term Evolution (LTE) mobile communication system, or establishing, by the mobile station, radio connection with a radio access network apparatus of the LTE mobile communication system without performing the location registration; issuing a notification to the radio access network apparatus of the WCDMA mobile communication system by an exchange apparatus of the WCDMA mobile communication system upon reception of a predetermined signal, the notification implying that the mobile station performs the location registration to the LTE mobile communication system or establishes radio connection with the radio access network apparatus of the LTE mobile communication system; and releasing the resources for radio connection by the radio access network apparatus of the WCDMA mobile communication system without transmitting a signal to release the resources to the mobile station in response to the notification from the exchange apparatus of the WCDMA mobile communication system.