Patent ID: 8085745

Claim:
A method for managing power resource in a wireless mesh network having a root terminal and a plurality of mesh terminals, the method comprising: receiving, in the root terminal, neighbor information from mesh terminals of the plurality of mesh terminals, the neighbor information including information on single-hop neighbor terminals of each mesh terminal; generating a routing path through the mesh network by selecting mesh terminals forming a tree form through the mesh network based on the received neighbor information; configuring the selected mesh terminals as active mesh terminals that perform a data relay function and configuring the remaining mesh terminals of the plurality of mesh terminals as super-saving mesh terminals that do not perform a data relay function; setting power saving modes such that a power saving mode of the super-saving mesh terminals configured not to perform the data relay function includes a shorter active period than the power saving mode of the active mesh terminals configured to perform the data relay function; and transferring data along the generated routing path while the active mesh terminals are in an active state, wherein the respective steps are repeatedly performed at every certain period.