METHODS AND SYSTEMS FOR SERVICE DISCOVERY MANAGEMENT IN PEER-TO-PEER NETWORKS

• Main Authors: KETCHUM JOHN W, WALTON J. RODNEY, MICHAELIS OLIVER
• Format: Patent
• Language: English; Korean
• Published: 14.06.2012
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; WIRELESS COMMUNICATIONS NETWORKS

Certain embodiments of the present disclosure relate to a method and an apparatus for managing and optimizing service discovery in a peer-to-peer (P2P) wireless network. Nodes of the P2P network advertise their capabilities to their peers in the form of services. Efficient propagation and management of node's services to other nodes is proposed in the present disclosure. An embodiment relates in particular to a method for wireless node in a peer-to-peer (P2P) network, comprising: receiving (410) one or more advertisements of services offered by one or more other wireless nodes in the P2P network; generating (420) a prioritized list of services, based on one or more services offered by the wireless node and services listed in the received advertisements of services; dropping a service from the prioritized list of services, if a distance of the service is larger than a distance limit; wherein the distance of the service is measured by a number of hops between the wireless node and another wireless node that initiated advertisement of the service and wherein the distance limit may vary based on the service or it may vary dynamically based on a network loading and network density; and distributing (430) the prioritized list of services to other wireless nodes in the P2P network.