METHOD AND APPARATUS FOR ASSIGNING ONE OR MORE SPREADING SEQUENCES TO USERS OF MULTI-CARRIER TRANSMISSION NETWORK

摘要

PROBLEM TO BE SOLVED: To provide a spreading sequence assignment method for reducing the effects of the interference on the performance of a transmission network under consideration using simple spreading sequence assignment techniques. SOLUTION: The method of assigning one or more spreading sequences to users of a multi-carrier transmission network, each element of the spreading sequence being, at a transmitter of the network, multiplied by a data item to be transmitted and then transmitted on a corresponding sub-carrier. The method comprises the steps of: obtaining for each user of the multi-carrier transmission network spatial information; putting in order the users according to their spatial information; and assigning to each user according to its order at least a spreading sequence among a group of ordered spreading sequences. COPYRIGHT: (C)2010,JPO&INPIT