Patent ID: 11962404
Assignee: COMCAST CABLE COMMUNICATIONS, LLC
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 50:
51. A system comprising:
a first device and a second device,
wherein the first device comprises:
one or more processors; and
memory storing instructions that, when executed by the one or more processors, cause the first device to:
send, based on a schedule indicating a plurality of pilot signals to be sent via a plurality of tones during a plurality of time periods, the plurality of pilot signals via the plurality of tones;
receive, after sending the plurality of pilot signals, data indicating:
a fundamental tone, of the plurality of tones, that is allocated to the first device;
one or more harmonic tones corresponding to the fundamental tone; and
adjustments of one or more modulation schemes for sending of subsequent upstream signals via the fundamental tone and the one or more harmonic tones; and

send, based on the adjusted one or more modulation schemes and via the fundamental tone or the one or more harmonic tones, an upstream signal, and

wherein the second device is configured to send the schedule to the first device.