| 摘要 |
Disclosed are a communication method, device and system, the communication method comprising: determining that a pulse amplitude modulation (PAM) order is the p-th power of 2, and 1≤P≤m; feeding back the PAM order to an ONU; extending the PAM order into a PAM-N order, and employing the extended PAM-N order to communicate with the ONU, N being the m-th power of 2, and m≥2. The communication method, device and system of the present invention realize continuous modulation of different downlink PAM orders, thus achieving different ONU adaptive link rate levels. |
