METHODS AND APPARATUS FOR ADAPTIVELY DETECTING SIGNAL DEGRADATION IN AN OPTICAL COMMUNICATION SYSTEM USING THE PRE-FORWARD ERROR CORRECTION BIT ERROR RATE

    公开(公告)号:US20200021358A1

    公开(公告)日:2020-01-16

    申请号:US16175469

    申请日:2018-10-30

    Abstract: In some embodiments, an apparatus comprises a memory and a processor operatively coupled to the memory. The processor is configured to receive, from a forward error correction (FEC) decoder of an optical transponder, a first plurality of pre-FEC bit error rate (BER) values at a plurality of times to identify a degradation over a first transmission path. The processor is configured to determine, based on the first plurality of pre-FEC BER values, a signal pattern. The processor is configured to adjust, based on the signal pattern, a set of parameters including a first threshold and a second threshold. The processor is configured to send, in response to a second pre-FEC BER value exceeding the second threshold and being below the first threshold, a signal to trigger traffic rerouting to a second transmission path to reduce traffic loss due to the degradation over the first transmission path.

    METHODS AND APPARATUS FOR ADAPTIVELY DETECTING SIGNAL DEGRADATION IN AN OPTICAL COMMUNICATION SYSTEM USING THE PRE-FORWARD ERROR CORRECTION BIT ERROR RATE

    公开(公告)号:US20200228200A1

    公开(公告)日:2020-07-16

    申请号:US16829360

    申请日:2020-03-25

    Abstract: In some embodiments, an apparatus comprises a memory and a processor operatively coupled to the memory. The processor is configured to receive, from a forward error correction (FEC) decoder of an optical transponder, a first plurality of pre-FEC bit error rate (BER) values at a plurality of times to identify a degradation over a first transmission path. The processor is configured to determine, based on the first plurality of pre-FEC BER values, a signal pattern. The processor is configured to adjust, based on the signal pattern, a set of parameters including a first threshold and a second threshold. The processor is configured to send, in response to a second pre-FEC BER value exceeding the second threshold and being below the first threshold, a signal to trigger traffic rerouting to a second transmission path to reduce traffic loss due to the degradation over the first transmission path.

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