Patent ID: 8780764
Filing Date: 2014-07-15
Classification: H04L,H04W

Abstract:
1. A system of updating routing paths in a hierarchical network comprising: a plurality of mobile terminals; a plurality of intermediate-layer routers; and a plurality of highest-layer routers; wherein said mobile terminals, and said intermediate-layer routers are hierarchically connected to one another, each said intermediate-layer router being connected to each said highest-layer router, said highest-layer routers each manage a specified network of hierarchy, and wherein said intermediate-layer routers each manage network addresses which are assigned respectively to said mobile terminals hierarchically connected thereto, and identify a highest-layer router of the plurality of highest-layer routers, based on each of said network addresses, to route to an upward router, each said network address including address of said mobile terminal and network identifying information for identifying said specified network associated with a highest-layer router of the plurality of highest-layer routers.