Patent ID: 8774253
Filing Date: 2014-07-08
Classification: H04B,H04L

Abstract:
1. A radio relay apparatus that relays a signal between a radio transmission apparatus and a radio reception apparatus, comprising: N antennas ports, N being a natural number of 2 or more; a reception section that receives the signal from the radio transmission apparatus via the N antenna ports, the signal being modulated at the radio transmission apparatus using a first M-ary modulation number M, M being a natural number of 1 or more; a generation section that divides the signal to generate N streams; a modulation section that modulates the N streams using a second M-ary modulation number K, K being a natural number of 1 or more; and a transmission section that transmits the modulated N streams to the radio reception apparatus via the N antenna ports, wherein the first M-ary modulation number M is decided based on N×K.