| 摘要 |
When transmission is performed using the OFDM-CDMA method, subcarriers # 1 through #m, # 2 m+1 through # 3 m , #3 m+1 through # 4 m, and # 4 m+1 through # 5 m in which spread signals are allocated only in the frequency axis direction, and subcarriers #m+1 through # 2 m in which spread signals are allocated in both the frequency axis direction and the time axis direction, are formed, and these are transmitted simultaneously. |
