Global Patent Index - EP 1163821 A1

EP 1163821 A1 2001-12-19 - METHOD AND APPARATUS FOR SUPPORTING CONNECTIONS ON MULTIPOINT-TO-POINT TOPOLOGIES

Title (en)

METHOD AND APPARATUS FOR SUPPORTING CONNECTIONS ON MULTIPOINT-TO-POINT TOPOLOGIES

Title (de)

VERFAHREN UND VORRICHTUNG ZUR UNTERSTÜTZUNG VON VERBINDUNGEN BEI MEHRPUNKT-ZU-PUNKT-TOPOLOGIEN

Title (fr)

PROCEDE ET APPAREIL D'ETABLISSEMENT DE CONNEXIONS DANS DES TOPOLOGIES MULTIPOINT-A-POINT

Publication

EP 1163821 A1 (EN)

Application

EP 99910391 A

Priority

FI 9900200 W

Abstract (en)

[origin: WO0056115A1] A method and apparatus for supporting connections on multipoint-to-point topologies is disclosed. A cell scheduler schedules packets from incoming VCCs for transmission on the order that a complete frame is available. Cells are received from a plurality of virtual channel connections. The cells for each of the virtual channel connections are stored in a buffer until a complete packet has been received. When a buffer accumulates a complete packet of cells for one of the virtual channel connections, the cells are scheduled for transmission. A complete packet is determined by looking at a packet type identification field. Cells forming a first packet for a first virtual channel connection are transmitted continuously until all the cells have been transmitted. A next available complete packet of cells is transmitted after the first packet of cells has been transmitted. A determination is made whether a cell is a data cell, an OAM cell, a Resource Management cell or a reserved cell. When a cell is determined to be an OAM cell, a Resource Management cell or a reserved cell, the buffered cells are dropped, moved to a bypass queue or handled as other cells.

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

H04Q 11/04; H04L 12/56

IPC 8 full level (invention and additional information)

H04Q 11/04 (2006.01); H04L 12/70 (2013.01)

CPC (invention and additional information)

H04Q 11/0478 (2013.01); H04L 2012/5643 (2013.01)

Citation (search report)

See references of WO 0056115A1

Designated contracting state (EPC)

DE FR GB IT

EPO simple patent family

WO 0056115 A1 20000921; AU 2936299 A 20001004; EP 1163821 A1 20011219

INPADOC legal status


2009-11-11 [18D] APPLICATION DEEMED TO BE WITHDRAWN

- Effective date: 20090415

2008-02-20 [RAP1] TRANSFER OF RIGHTS OF AN APPLICATION

- Owner name: NOKIA SIEMENS NETWORKS OY

2002-03-13 [RAP1] TRANSFER OF RIGHTS OF AN APPLICATION

- Owner name: NOKIA CORPORATION

2001-12-19 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20011017

2001-12-19 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): DE FR GB IT