Echo cancellation in multiple port full duplex (fdx) nodes and amplifiers

A system comprising:

• a memory storage;
• and
• a processing unit coupled to the memory storage, wherein the processing unit is operative to:
• provide a plurality of signals to a cancelation device, wherein the cancelation device comprises a plurality of phase shifters, and wherein each of the plurality of signals are configured to provide the cancelation device with a corresponding plurality of configurations of the plurality of phase shifters,
• receive a plurality of effective echo power values respectively corresponding to the plurality of configurations of the plurality of phase shifters,
• select a one of the plurality of configurations of the plurality of phase shifters corresponding to a lowest of the plurality of effective echo power values for the cancelation device, and
• operate the cancelation device at the selected one of the plurality of configurations.

A computer-readable medium that stores a set of instructions which when executed perform method executed by the set of instructions comprising:

• providing a plurality of signals to a cancelation device, wherein the cancelation device comprises a plurality of phase shifters, and wherein each of the plurality of signals are configured to provide the cancelation device with a corresponding plurality of configurations of the plurality of phase shifters;
• receiving a plurality of effective echo power values respectively corresponding to the plurality of configurations of the plurality of phase shifters;
• selecting a one of the plurality of configurations of the plurality of phase shifters corresponding to a lowest of the plurality of effective echo power values for the cancelation device;
• and
• operating the cancelation device at the selected one of the plurality of configurations.