Patent ID: 9031594
Filing Date: 2015-05-12
Classification: H04W

Abstract:
1. A communication terminal which transmits a proximity indication message to a first base station that provides a currently connected cell when approximating to an access-restricted cell provided by a second base station that supports a plurality of access-restricted cells at different frequencies, the communication terminal comprising one or more integrated circuits configured to: acquire notification information containing information related to all frequencies allocated to the access-restricted cells supported by the second base station; store frequency information for a plurality of access-restricted cells that were accessible in the past; select one arbitrary frequency from the stored frequency information when detecting that the communication terminal approximates to an access-restricted cell from the plurality of the access-restricted cells that were accessible in the past, based on the acquired notification information and the stored frequency information; and transmit the proximity indication message containing the selected frequency, to the first base station.