QUALITY OF SERVICE CONTROL IN MULTIPLE HOP WIRELESS COMMUNICATION ENVIRONMENTS

Title:

QUALITY OF SERVICE CONTROL IN MULTIPLE HOP WIRELESS COMMUNICATION ENVIRONMENTS

Document Type and Number:

WIPO Patent Application WO/2009/010850

Kind Code:

A3

Abstract:

One or more relay stations may be employed along a wireless communication access path between an ingress station and an egress station. A logical communication tunnel is established between the ingress and egress stations through any number of intermediate relay stations to handle session flows of PDUs. As PDUs arrive, the ingress station may determine and add scheduling information to the PDUs before they are delivered to the downstream intermediate relay stations or egress stations. The scheduling information is used by the downstream stations to schedule the PDUs for further delivery. The scheduling information may also be used by the egress station to schedule the PDUs for delivery. The scheduling information added to the PDU by the ingress station bears on a QoS class associated with the PDU, a deadline for the egress station to deliver the PDU, or a combination thereof.

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Inventors:

ZHANG HANG (CA)
ZHU PEIYING (CA)
TONG WEN (CA)
SENARATH GAMINI (CA)
YU DEREK (CA)
STEER DAVID G (CA)

Application Number:

PCT/IB2008/001827

Publication Date:

April 21, 2011

Filing Date:

July 14, 2008

Export Citation:

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Assignee:

NORTEL NETWORKS LTD (CA)
ZHANG HANG (CA)
ZHU PEIYING (CA)
TONG WEN (CA)
SENARATH GAMINI (CA)
YU DEREK (CA)
STEER DAVID G (CA)

International Classes:

H04W40/22; H04W88/18; H04W88/08

Domestic Patent References:

WO2007019672A1	2007-02-22
WO2005025110A2	2005-03-17

Foreign References:

US20050014464A1

2005-01-20

Other References:

PABST ET AL.: "Relay-Based Deployment Concepts for Wireless and Mobile Broadband Radio", IEEE COMMUNICATIONS MAGAZINE, vol. 42, no. 9, September 2004 (2004-09-01), pages 80 - 89, XP011119469

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