Patent ID: 9306993
Filing Date: 2016-04-05
CPC Classification: H04L,H04W

Claim Text:
1. A communication system which uses an orthogonal frequency division multiplexing (OFDM) method as a downlink access method from a base station to a mobile terminal and uses a single carrier-frequency division multiple access (SC-FDMA) method as an uplink access method from the mobile terminal to the base station, the base station and mobile terminal being included in the communication system, the communication system comprising: a plurality of multimedia broadcast multicast service single frequency network (MBSFN} areas each configured to provide multimedia broadcast multicast service (MBMS) on a single frequency, each MBSFN area including multiple cells, wherein the base station belongs to the plurality of MBSFN areas and is configured to transmit each MBSFN area identification (ID) of the plurality of MBSFN areas by a broadcast control channel (BCCH), the mobile terminal is configured to receive each MBSFN area ID of the plurality of MBSFN areas by the BCCH; and wherein each of a multicast control channel (MCCH) and a multicast traffic channel (MTCH) for each of the plurality of the MBSFN areas is multiplied by a scrambling code related to each MBSFN area ID of the plurality of MBSFN areas.