Patent ID: 8780776

Claim:
A network system, comprising: a plurality of end devices; a plurality of network path sharing devices; and a single or a plurality of coordinators; wherein the end devices and, even, the network path sharing devices can be enforced to enter a sleep state at a first preset times and wake up at a second preset times; a corresponding parent node of an end device is either a network path sharing device or the coordinator; the corresponding parent node of the network path sharing device is either another network path sharing device or the coordinator; when a node intends to transmit data but the corresponding parent node is not in an active state, the node searches for a new parent node to establish a new transmission path; when the corresponding parent nodes are not in the active state, the children nodes reconnect to the new parent nodes and establish the new transmission paths via a device object circuit; and a child node comprises: a medium access control layer circuit, the medium access control circuit finds out whether the corresponding parent nodes are in the active state or not; and a network layer circuit, when the corresponding parent nodes are not in the active state, the network layer circuit is reset to establish the new transmission path.