Mobile communication system

摘要

A communication system has three types of cells including, in addition to an MBMS dedicated cell, a unicast cell to and from which a mobile terminal can transmit and receive individual communication data, and a unicast/MBMS-mixed cell which can provide both a service provided by the unicast cell and a service provided by the MBMS dedicated cell. While receiving the broadcast type data transmitted from the MBMS dedicated cell, the mobile terminal makes a notification of an MBMS receiving state via the unicast cell or the unicast/MBMS-mixed cell to transmit information for identifying the MBMS dedicated cell, and the communication system transmits a paging signal to the mobile terminal currently receiving the broadcast type data transmitted from the MBMS dedicated cell on the basis of a tracking area (Tracking Area) in which the mobile terminal is tracked, the tracking area being determined on the basis of the information transmitted.

主权项

1. A communication system which uses an OFDM (Orthogonal Frequency Division Multiplexing) method as a downlink access method from a base station to a mobile terminal and uses a SC-FDMA (Single Career Frequency Division Multiplexing) method as an uplink access method from the mobile terminal to the base station,
wherein two or more MBSFN (Multimedia Broadcast multicast service Single Frequency Network) areas in each of which MBMS (Multimedia Broadcast Multicast Service) is provided on a single frequency are configured, wherein the base station belonging to a plurality of MBSFN areas is adapted to transmit a scheduling information for each MCCH (Multicast Control Channel) of the plurality of MBSFN areas by BCCH (Broadcast Control Channel), wherein the mobile terminal is adapted to receive the scheduling information by the BCCH, and wherein the scheduling information includes a MCCH repetition period and a MCCH starting point value, corresponding to each of the plurality of MBSFN areas, and the MCCH is multiplied by a scrambling code related to each MBSFN area ID of the plurality of MBSFN areas.