APPARATUS AND METHODS FOR MAPPING MODULATION SYMBOLS TO RESOURCES IN OFDM SYSTEMS

摘要

PROBLEM TO BE SOLVED: To provide an apparatus and methods for mapping modulation symbols to resources in OFDM systems.SOLUTION: A transmission method includes the steps of: dividing a transmission resource in a time domain subframe into a plurality of equal duration resource elements in a time and frequency domain; segregating the plurality of resource elements into a plurality of resource regions; modulating information to be transmitted to generate a sequence of modulation symbols at a transmitter; mapping the sequence of modulation symbols into the plurality of resource elements in the plurality of resource regions; and transmitting the modulation symbols via a plurality of antennas using the respective corresponding resource elements to a receiver. The information to be transmitted may be encoded to generate a plurality of code blocks, with roughly equal number of resource elements assigned to each of the plurality of code blocks in at least one resource region.