DOWNLINK SCRAMBLE METHOD AND BASE STATION APPARATUS

摘要

In a downlink of OFDM wireless access, a scramble code suitable for each of physical channels is used to randomize the channel. A base station apparatus comprises a scramble-specific-to-base-station generating part (12) that generates a scramble code, which is specific to the base station, for randomizing a physical channel of a downlink; an orthogonal sequence-specific-to-sector generating part (13) that generates an orthogonal sequence specific to a sector; and a multiplication control part (22) that controls, based on whether soft combination is required for each physical channel, whether it is required to multiply the scramble code specific to the base station by the orthogonal sequence specific to the sector.