Mobile communication system

摘要

An MBMS transmission-dedicated cell has only a downstream link and no upstream link. It is possible to establish a paging signal communication method on a mobile terminal in the MBMS-dedicated cell. A mobile communication system includes three types of cells: the MBMS-dedicated cell, a unicast cell in which a mobile terminal can transmit and receive individual communication data, and a mixed cell which can provide both of the unicast cell service and the MBMS-dedicated cell service. While receiving broadcast type data transmitted from the MBMS-dedicated cell, a mobile terminal performs an MBMS reception state report for reporting information to identify the MBMS-dedicated cell which is transmitting broadcast type data received via the unicast cell or the mixed cell.The information is used to establish a tracking area for tracking the mobile terminal. A paging signal is transmitted, according to the tracking area, to the mobile terminal which is receiving the broadcast type data transmitted from the MBMS-dedicated cell.