Electrical phase computation using RF media

A network, comprising:

• a first metrology unit of a first network node to obtain first data indicating a first zero-crossing at a first time;
• a second metrology unit of a second network node to obtain a packet comprising second data indicating a second zero-crossing at a second time;
• and
• a processor of the first network node to:
• obtain the packet comprising the second data, the packet comprising at least one free-run timer value defining a period between the second zero-crossing until a time of transmission of the packet;
• record, at the first network node, a time of reception of the packet, the time of reception being based at least in part on a reception of the packet;
• determine a time difference between the first zero-crossing and the second zero-crossing, wherein the time difference is based at least in part on the first data, the second data, the time of reception of the packet, and a latency defined by a time taken for the packet to propagate through at least one layer of at least one of the first metering device and the second metering device;
• and
• determining, by operation of the processor of the first metering device, a phase difference between the first zero-crossing and the second zero-crossing based at least in part on the determined time difference.

One or more non-transitory computer-readable media storing computer-executable instructions that, when executed, cause one or more processors to perform acts comprising:

• obtaining first data, at a processor of a first metering device and from a metrology unit of the first metering device, indicating a first zero-crossing of the first metering device at a first time;
• obtaining, at the first metering device, a packet received from a second metering device, the packet comprising:
• second data indicating a second zero-crossing of the second metering device at a second time;
• and
• a free-run timer value defining a period between the second zero-crossing until a time of transmission of the packet;
• recording, at the first metering device, a time of reception of the packet, the time of reception being based at least in part on a reception of the packet;
• determining, by operation of the processor of the first metering device, a time difference between the first zero-crossing and the second zero-crossing, wherein the time difference is based at least in part on the first data, the second data, the time of reception of the packet, and a latency defined by a time taken for the packet to propagate through at least one layer of at least one of the first metering device and the second metering device;
• and
• determining, by operation of the processor of the first metering device, a phase difference between the first zero-crossing and the second zero-crossing based at least in part on the determined time difference.