Global Patent Index - EP 1236315 A1

EP 1236315 A1 2002-09-04 - ROUTE DISCOVERY BASED PICONET FORMING

Title (en)

ROUTE DISCOVERY BASED PICONET FORMING

Title (de)

LEITWEGSENTDECKUNG BASIEREND PICONETZ-BILDUNG

Title (fr)

FORMATION DE PICORESEAU BASEE SUR LA RECHERCHE DE VOIES D'ACHEMINEMENT

Publication

EP 1236315 A1 (EN)

Application

EP 00983626 A

Priority

  • SE 0002408 W
  • US 16874299 P

Abstract (en)

[origin: WO0141377A1] A method for establishing a route over which data packets are to be sent from a source node to a destination node in an ad-hoc network is provided. A source having packets to send to a destination node employs a reactive routing protocol if it does not possess the route to the destination node. Initially, it may be determined whether or not the source node is a member of an existing piconet. If the source node is a member of an existing piconet, a ROUTE request message may be broadcast to the nodes of the existing piconet, while the source awaits a timely REPLY message. If the source node is not a member of an existing piconet, or if a time REPLY message is not received, the source node may initiate a new route discovery process wherein the nodes attempt to establish new piconets that enable more efficient communication between the source and destination nodes.

IPC 1-7 (main, further and additional classification)

H04L 12/56; H04L 12/28

IPC 8 full level (invention and additional information)

H04L 12/46 (2006.01); H04L 12/721 (2013.01); H04L 12/751 (2013.01)

CPC (invention and additional information)

H04L 45/26 (2013.01); H04L 45/02 (2013.01); H04W 40/28 (2013.01); H04W 40/34 (2013.01); H04W 84/18 (2013.01)

Citation (search report)

See references of WO 0141377A1

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

EPO simple patent family

WO 0141377 A1 20010607; AU 2035701 A 20010612; CN 1408162 A 20030402; EP 1236315 A1 20020904; JP 2003516033 A 20030507

INPADOC legal status


2006-10-18 [18D] APPLICATION DEEMED TO BE WITHDRAWN

- Effective date: 20060321

2004-05-06 [RAP1] TRANSFER OF RIGHTS OF AN APPLICATION

- Owner name: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

2002-10-16 [RIN1] INVENTOR CHANGED BEFORE GRANT

- Inventor name: LARSSON, TONY

2002-10-16 [RIN1] INVENTOR CHANGED BEFORE GRANT

- Inventor name: JOHANSSON, PER, X.

2002-10-16 [RIN1] INVENTOR CHANGED BEFORE GRANT

- Inventor name: SOERENSEN, JOHAN

2002-09-04 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20020606

2002-09-04 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

2002-09-04 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO:

- Free text: AL;LT;LV;MK;RO;SI