RECEIVER, TRANSMITTER AND RADIO COMMUNICATION METHOD

• Main Authors: KISHIYAMA YOSHIHISA, ANASS BENJEBBOUR
• Format: Patent
• Language: English; Japanese
• Published: 14.07.2016
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; MULTIPLEX COMMUNICATION; TRANSMISSION; WIRELESS COMMUNICATIONS NETWORKS

PROBLEM TO BE SOLVED: To provide a receiver, a transmitter and a radio communication method capable of using a non-orthogonal multiple access with the suppression of a cost increase and a processing delay.SOLUTION: A physical channel separation unit 210 in a mobile station 200A receives a radio signal which includes a plurality of orthogonal signals which are orthogonal with each other and a plurality of non-orthogonal signals which are not orthogonal with each other, to output to a data demodulation/decoding unit 220, a target user control signal detection unit 230 and an interference user control signal detection unit 240. By use of the orthogonal signal included in the received radio signal, the data demodulation/decoding part 220 demodulates and cancels a radio signal destined to another mobile station, from among a plurality of non-orthogonal signals, to extract a non-orthogonal signal destined to the mobile station 200A. Further, from the signal included in the orthogonal signal and destined to the mobile station 200A, the data demodulation/decoding part 220 demodulates the extracted non-orthogonal signal destined to the mobile station 200A.SELECTED DRAWING: Figure 5 【課題】コスト上昇や処理遅延を抑制しつつ、非直交マルチアクセスを利用し得る受信装置、送信装置及び無線通信方法を提供する。【解決手段】移動局２００Ａの物理チャネル分離部２１０は、互いに直交する複数の直交信号と、互いに直交しない複数の非直交信号とが含まれた無線信号を受信し、データ復調／復号部２２０、目的ユーザ制御信号検出部２３０及び干渉ユーザ制御信号検出部２４０に出力する。データ復調／復号部２２０では、受信した無線信号に含まれる直交信号を用いて、複数の非直交信号の中から、他の移動局宛ての無線信号を復調及びキャンセルすることにより、移動局２００A宛ての非直交信号を抽出する。データ復調／復号部２２０ではさらに、直交信号に含まれる移動局２００A宛ての信号から、抽出した移動局２００A宛ての非直交信号を復調する。【選択図】図５