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Title: System and method for time synchronization in a wireless network

A system includes multiple wireless nodes forming a cluster in a wireless network, where each wireless node is configured to communicate and exchange data wirelessly based on a clock. One of the wireless nodes is configured to operate as a cluster master. Each of the other wireless nodes is configured to (i) receive time synchronization information from a parent node, (ii) adjust its clock based on the received time synchronization information, and (iii) broadcast time synchronization information based on the time synchronization information received by that wireless node. The time synchronization information received by each of the other wireless nodes is based on time synchronization information provided by the cluster master so that the other wireless nodes substantially synchronize their clocks with the clock of the cluster master.
Inventors:
 [1];  [2];  [3];  [4]
  1. (Maplewood, MN)
  2. (Blaine, MN)
  3. (Kerala, IN)
  4. (Maple Grove, MN)
Issue Date:
OSTI Identifier:
1015354
Assignee:
Honeywell International Inc. (Morristown, NJ) OSTI
Patent Number(s):
7,688,802
Application Number:
12/464,030
Research Org:
Honeywell International Inc. (Morristown, NJ)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English