DYNAMIC DISCOVERY OF A NETWORK SERVICE ON A MOBILE DEVICE

WIPO Patent Application WO2007074359

A9

A network service is made available on a device (102) capable of operating on a first network (106) that is coupled to a second network (108) via a Network Address Translator (NAT) (110). One or more User Datagram Protocol (UDP) messages are exchanged with an entity (126A) of the second network (108). Based on the exchange of UDP messages, an IP address and port (124A) used by the NAT (110) on the second network (108) is determined for purposes of accessing the device (102) on the first network (106) via the second network (108). The IP address and port (124A) are registered with a discovery service (126) of the second network. Network services are requested from the device (102) via the second network (108) using the IP address and port (124A) obtained via the discovery service (126). In one arrangement, the exchange of UDP messages involves the use of Simple Traversal of UDP Through NATs (STUN) messages (302).

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KEMP JOHN (US)

PCT/IB2006/003346

November 29, 2007

November 20, 2006

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NOKIA CORP (FI)
NOKIA INC (US)

H04L29/06; H04L29/08; H04L29/12

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