Patent ID: 8976750
Filing Date: 2015-03-10
Classification: H04W

Abstract:
1. Non-transitory computer-readable media having computer-executable instructions embodied thereon that, when executed by one or more computing devices, cause the one or more computing devices to perform operations comprising: continuously measuring, in an asymmetric network without on-path support, one-way delay (OWD) and delay offset from a host site to an anchored site to determine a dynamic corrective offset (DCO), wherein each of the host site and the anchored site has a Primary Reference Timing Clock (PRTC) that is traceable and synchronous to a common clock; identifying one of a plurality of unanchored small cell sites; and applying the DCO to precision time protocol (PTP) messages communicated from the host site to the identified unanchored small cell site, wherein applying the DCO to PTP messages comprises: communicating, to the identified unanchored small cell site, a PTP sync message from the host site that indicates a point in time the host site sent the PTP sync message, the PTP sync message being received at a second point in time; indicating, to the identified unanchored small cell site, to ignore the point in time indicated in the PTP sync message; and communicating to the identified unanchored small cell site a follow-up message from the host site indicating the DCO, wherein the DCO comprises a sum of the point in time, the OWD, and the delay offset, and further wherein the follow-up message is received at a third point in time.