Method for managing the transfer of information packets across a wireless and routing nodes implementing it

摘要

A wireless network includes permanently powered routing nodes and intermittently operating routing nodes. A polling procedure is used for transferring routing and data information packets from a permanently powered routing node to an intermittently operating routing node. In particular, when the permanently powered routing node has to transmit an information packet to the intermittently operating routing node, it stores the information packet in a memory; it waits until the intermittently operating routing node is able to receive information packets; and then it transmits the information packet to the intermittently operating routing node, and when the intermittently operating routing node has to transmit an information packet to the permanently powered routing node, it transmits immediately the information packet to the permanently powered routing node.

主权项

1. A method for managing the transfer of information packets across a wireless network comprising a first plurality of permanently powered routing nodes forming a first permanently powered sub-network, a second plurality of permanently powered routing nodes forming a second permanently powered sub-network, and a plurality of intermittently operating routing nodes forming an intermittently operating sub-network, comprising:
associating the first permanently powered sub-network directly with the second permanently powered sub-network; if the first permanently powered sub-network loses connection with the second permanently powered sub-network, associating the intermittently operating sub-network with each of the first permanently powered sub-network and the second permanently powered sub-network; transferring information packets, comprising routing information packets and data information packets, from at least one of the first plurality of permanently powered routing nodes to at least a first intermittently operating routing node of said plurality of intermittently operating routing nodes, using a polling procedure; and transferring information packets, comprising routing information packets and data information packets, from at least one of the second plurality of permanently powered routing nodes to at least a second intermittently operating routing node of said plurality of intermittently operating routing nodes, using a polling procedure, wherein the polling procedure comprises transmitting a request of data from one intermittently operating routing node to one permanently powered operating routing node, receiving a reply from the permanently powered operating routing node, checking the reply, and if the permanently powered routing node has an information packet pending for the intermittently operating routing node, carrying out a waiting loop which ends either when the permanently powered routing node starts transmission of the information packet or when a predetermined time period expires.