Patent ID: 9009467
Filing Date: 2015-04-14
Classification: H04B,H04L,Y04S

Abstract:
1. For use in a power-line communication system, a method performed by a data processing apparatus, the method comprising: receiving a symbol over a particular communications channel on power lines in a power-line communication system between a particular endpoint located at a facility and a data-collection circuit located remote from the facility, wherein the particular endpoint is one of a plurality of endpoint circuit devices respectively situated at or in different locations for monitoring power provided to loads over the power lines in the power-line communication system; decrypting the symbol using a decryption key that is assigned to the particular endpoint that is assigned the particular communications channel; computing a measure of error, including a bit error rate, for the decrypted symbol; determining whether the measure of error exceeds a threshold error measure, including determining whether the bit error rate exceeds a threshold bit error rate; in response to determining that the measure of error exceeds the threshold error measure, identifying the decrypted symbol as a symbol from a different endpoint among the plurality of endpoint circuit devices; and in response to determining that the measure of error does not exceed the threshold error measure: identifying the decrypted symbol as a valid symbol transmitted by the particular endpoint; and logging the valid symbol relative to the particular endpoint.