TRANSMISSION APPARATUS AND METHOD FOR USE IN MOBILE COMMUNICATION SYSTEM BASED ON ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING SCHEME

摘要

A single frame of information bit sequences to be transmitted to individual users is divided into a plurality of times according to a given time interval. The information bit sequences within the plurality of division times are divided, and the divided information bit sequences are spread using different Walsh codes. The spread information bit sequences are combined into a single sequence associated with the individual users, which is then outputted. The information bit sequences, which have been combined into the single sequence, are divided. The spread information bit sequences are distributed over a plurality of bandwidths capable of mapping-processing the spread information bit sequences with sub-carrier frequencies. And then, it is performed, a frequency hopping function such that each of the bandwidths does not overlap with time-frequency cells given by the given time interval.