Patent ID: 7680073
Filing Date: 2010-03-16
Classification: H04L,H04W

Abstract:
1. A method for routing a message in a radio network having a plurality of master/slave configured piconets, each piconet having a master node linked to, and operable to communicate with, the master node of another piconet and wherein each linked master node stores a routing table comprising local piconet entries identifying any slave nodes associated with its piconet and linked piconet entries identifying those piconets with which it is directly linked, the method comprising a master node of a piconet: receiving a message from a linked master node, the message including a routing indicator, wherein the routing indicator identifies a target node for the message; calculating a local reference from the routing indicator according to a reception rule based on a reference in the routing table identifying the linked master node that transmitted the message to the master node of the piconet; identifying the target node according to the local reference and routing table information; determining if the target node is a slave node associated with the local piconet or a node accessible via a linked piconet; and when the determined target node is identified as being a slave node associated with the local piconet transmitting the message to that slave node; and when the determined target node is identified as being a node accessible via a linked piconet, calculating a new routing indicator according to a transmission rule, replacing the routing indicator in the message with the new routing indicator and transmitting the message to the master node of the linked piconet.