Dynamic cyclic extension for fast access to subscriber terminals (G.Fast)

A fast access to subscriber terminal (“G.Fast”) distribution point unit (“DPU”) system comprising:

• a DPU processing component;
• and
• a DPU memory having instructions stored thereon that, when executed by the DPU processing component, cause the DPU processing component to perform operations comprising
• measuring an upstream signal attenuation of a G.Fast cable in a G.Fast circuit to obtain an upstream signal attenuation value,
• determining a new cyclic extension value based upon the upstream signal attenuation value,
• determining if the new cyclic extension value is not equal to a default cyclic extension value, and
• in response to determining that the new cyclic extension value is not equal to the default cyclic extension value, updating a cyclic extension value for the G.Fast cable in the G.Fast circuit to the new cyclic extension value.

A non-transitory computer-readable storage medium having computer-executable instructions stored thereon that, when executed by a fast access to subscriber terminal (“G.Fast”) distribution point unit (“DPU”) processing component, cause the G.Fast DPU processing component to perform operations comprising:

• measuring an upstream signal attenuation of a G.Fast cable in a G.Fast circuit to obtain an upstream signal attenuation value;
• determining a new cyclic extension value based upon the upstream signal attenuation value;
• determining if the new cyclic extension value is not equal to a default cyclic extension value;
• and
• in response to determining that the new cyclic extension value is not equal to the default cyclic extension value, updating a cyclic extension value for the G.Fast cable in the G.Fast circuit to the new cyclic extension value.