Patent ID: 8743769
Filing Date: 2014-06-03
Classification: H04B,H04L,H04W

Abstract:
1. A relay radio communication device that relays between a source radio communication device and a destination radio communication device in multiple stages, comprising: a reception unit that receives a signal; an MCS (Modulation and Coding Scheme) setting unit that sets an MCS to be the same MCS used by a one-hop-downstream radio communication device for transmitting a relay signal, when succeeding in receiving a signal to be relayed from a one-hop-upstream radio communication device and receiving an ACK (acknowledge) from the one-hop-downstream radio communication device, wherein the ACK indicates an affirmative response to the signal to be relayed by the relay radio communication device and transmitted from the one-hop-upstream radio communication device; an encoding/modulation unit that encodes and modulates the signal to be relayed with the MCS set by the MCS setting unit; and a transmission unit that transmits the signal to be relayed as another relay signal encoded and modulated by the encoding/modulation unit.