US 8,363,681 B2
METHOD AND APPARATUS FOR USING RANGING MEASUREMENTS IN A MULTIMEDIA HOME NETWORKGeneral
US 8,363,681 B2
METHOD AND APPARATUS FOR USING RANGING MEASUREMENTS IN A MULTIMEDIA HOME NETWORK
Tech Center:
2400 Networking, Multiplexing, Cable, and Security
Examiner:
Michael Thier
Art Unit:
2474 Multiplex and VoIP
Agent:
Bruce Greenhaus
Inventors:
Arndt MUELLER
Assignee:
Priority:
10/15/09
Filed:
10/15/09
Granted:
01/29/13
Expiration:
01/21/30
Abstract
According to various embodiments of the disclosure, systems, methods and apparatuses are provided for using ranging to improve network efficiency. In particular, various embodiments of the disclosure provide ranging to improve local clock time synchronization. According to one embodiment, a method for synchronizing a plurality of nodes on a communication network is provided, comprising: exchanging local clock times between a first node and a second node over the communication network; performing a ranging method between the first and second nodes based on the local clock times exchanged between the first and second nodes, wherein the ranging method results in an estimated propagation delay between the first and second nodes; and adjusting the local clock times of the first and second nodes based on the estimated propagation delay, thereby resulting in a synchronized local clock time at the first and second nodes.
Cooperative Patent Classification (CPC)
H04H04L43/0852H04J3/0664H04L