Patent ID: 7843960
Filing Date: 2010-11-30
Classification: H04B,H04L,H04W

Abstract:
1. A transmission device in a multi-carrier radio transmission system, which system performs radio transmission based on a plurality of data sub-carriers and a plurality of virtual sub-carriers, and uses the plurality of data sub-carriers for data transmission, comprising; a designating unit configured to designate at least one sub-carrier as a virtual sub-carrier according to sub-carrier arrangement information based on a pattern among a plurality of sub-carrier arrangement patterns in which at least some of virtual sub-carrier arrangements are different, which pattern is different from patterns among the plurality of sub-carrier arrangement patterns used by other transmission devices so that a reception device distinguishes a transmission signal from the transmission device from transmission signals from the other transmission devices, wherein at least one sub-carrier set to be a data sub-carrier in one of the at least some of virtual sub-carrier arrangements used by the transmission device is also set to be a data sub-carrier in another of the at least some of virtual sub-carrier arrangements used by another transmission device at any time at least during a communication using an established communication link.