Method for enabling the efficient operation of arbitrarily interconnected mesh networks

摘要

Wireless mesh networks (or “meshes”) are enabled for arbitrary interconnection to each other and may provide varying levels of coverage and redundancy as desired. Interoperability between meshes having differing configurations, internal operations, or both, may be freely intermixed and inter-operated in unrestricted combination. Enhanced explicit inter-bridge control protocols operate using pre-existing control packets. Pre-existing broadcast packet floods are used to learn the best paths across interconnected meshes (termed a “multi-mesh”). Enhanced routing protocols operating within each mesh may optionally examine information limited to the respective mesh when forwarding traffic, thus enabling robust multi-mesh scaling with respect to memory and processing time required by the routing protocols. Communication scalability is improved by enabling frequency diversity across the multi-mesh by configuring meshes within interference range of each other for operation at a plurality of frequencies. Each mesh may operate at a respective non-interfering frequency.

主权项

1. An apparatus comprising:
means for passing packets between first and second wireless mesh networks, at least in part via first and second mesh bridge nodes respectively associated with the first and the second wireless mesh networks, to form a multi-mesh network; means for accumulating route cost information at least in part during the packet passing, the accumulating being performed at least in part via the mesh bridge nodes, the accumulated route cost information corresponding to cost of forwarding a respective packet through each wireless mesh network the respective packet has traversed up to when the accumulated route cost information is updated, the accumulating route cost information comprising stripping route cost information specific to a just-traversed wireless mesh network from the respective packet and appending to the respective packet respective route cost information for the just-traversed wireless mesh network; and means for forwarding at least some of the packets, at least in part via the mesh bridge nodes, according to efficient routes based at least in part on the accumulated route cost information.