Patent ID: 9426762
Filing Date: 2016-08-23
CPC Classification: H04J,H04L,H04W

Claim Text:
1. A method of performing timing related processing in a packet-based network communications over a communications link, the method comprising: synchronizing a clock of a first Ethernet switch with a clock of a second Ethernet switch separated by a microwave communications link, the first Ethernet switch being part of a first microwave station and the second Ethernet switch being part of a second microwave station; determining a time of arrival of a packet at the first Ethernet switch using a first time of day (TOD) domain, said first TOD domain associated with the first Ethernet switch; determining a time of departure of the packet from the first Ethernet switch utilizing the first TOD domain; determining a time of departure of the packet from the first microwave station utilizing a second TOD domain, said second TOD domain associated with circuitry performing communication link functions of the microwave communications link; transmitting the packet, including information regarding the determined time of departure of the packet from the first microwave station utilizing the second TOD domain, from the first microwave station to the second microwave station; determining a time of arrival of the packet at the second microwave station utilizing the second TOD domain; determining a time of arrival of the packet at the second Ethernet switch utilizing the first TOD domain; determining a time of departure of the packet from the second Ethernet switch utilizing the first TOD domain; and setting a correction field of the packet to a value based on at least the determined time of departure of the packet from the first microwave station utilizing the second TOD domain, the determined time of arrival of the packet at the first Ethernet switch utilizing the first TOD domain and one at least one of: the determined time of departure of the packet from the first Ethernet switch utilizing the first TOD domain; the determined time of arrival of the packet at the second microwave station utilizing the second TOD domain; the determined time of arrival of the packet at the second Ethernet switch utilizing the first TOD domain; and the determined time of departure of the packet from the second Ethernet switch utilizing the first TOD domain.