Patent ID: 7961699
Filing Date: 2011-06-14
Classification: H04J,H04L,H04W

Abstract:
1. A transmitting apparatus, comprising: a multiplexing unit which time-division multiplexes a unicast frame, within which unicast frame is included a specific pilot channel, which specific pilot channel is specific to a specific cell, and a multimedia broadcast multicast service (MBMS) frame, within which MBMS frame is included a common pilot channel, which common pilot channel is common to a multimedia broadcast multicast service (MBMS) area; and a transmitter which transmits a result of multiplexing at the multiplexing unit, wherein an insertion density of the common pilot channel for the MBMS frame is larger than an insertion density of the specific pilot channel for the unicast frame, wherein in a first OFDM symbol out of a predetermined number of OFDM symbols included in the one MBMS frame, the common pilot channel is mapped to each of some discrete sub-carriers out of multiple sub-carriers, and wherein in a second OFDM symbol arranged subsequent to the first OFDM symbol, out of the one MBMS frame, the common pilot channel is also mapped to each of discrete sub-carriers other than the sub-carriers to which the common pilot channel in the one OFDM symbol is mapped.