Patent ID: 11876554
Assignee: MITSUBISHI ELECTRIC CORPORATION
Field: Telecommunications (Electrical engineering)
Classification: CPC H | IPC H

Claim 8:
9. The optical transceiver according to claim 7, wherein the processing circuitry
calculates, from subcarrier frequencies of the respective two transmission signals, a center frequency of the two subcarrier frequencies, and calculates a bandwidth on a lower frequency side than the center frequency and a bandwidth on a higher frequency side than the center frequency in the bandwidth,
determines each of the modulation rate of one of the two transmission signals and the modulation level of the one transmission signal depending on each of the bandwidth on the lower frequency side and the optical signal-to-noise ratio,
determines each of the modulation rate of another one of the two transmission signals and the modulation level of the other transmission signal depending on each of the bandwidth on the higher frequency side and the optical signal-to-noise ratio, and
determines the subcarrier spacing from the bandwidth on the lower frequency side and the bandwidth on the higher frequency side.