Title:
RESOURCE OPTIMIZATION FUNCTION IN A DATA AND TELECOMMUNICATIONS SYSTEM
Document Type and Number:
WIPO Patent Application WO1999022575
Kind Code:
A3
Abstract:
The invention relates to a method at a telecommunications system and a data communications system which adapts resource reservation protocol for fixed networks (102) to radio networks with large variation in bandwidth and quality. At hierarchical coding, a data stream is divided into separate data streams with different priorities. By the resource reservation protocol, then resources in the fixed network (102) for the data streams are reserved. A node in the fixed network throws the data streams according to a predecided priority if the transmission capacity of the node decreases. If the transmission capacity at this node decreases, and the quality requirement of a data stream fails to be kept up, the data stream in question is thrown. After that, the node transmits a message to the nodes where the resource reservations are, towards the transmitter (105) with the following content: update the resource reservations for the data stream, i.e. keep the resource reservations which are required to transmit the data stream; use the reserved resource temporarily for other traffic; throw the data stream until different is stated.
Inventors:
MALMKVIST JONAS (SE)
SANDELL STEFAN (SE)
SANDELL STEFAN (SE)
Application Number:
PCT/SE1998/001975
Publication Date:
August 05, 1999
Filing Date:
October 30, 1998
Export Citation:
Assignee:
TELIA AB (SE)
MALMKVIST JONAS (SE)
SANDELL STEFAN (SE)
MALMKVIST JONAS (SE)
SANDELL STEFAN (SE)
International Classes:
H04L12/54; H04L47/724; H04L47/80; (IPC1-7): H04L12/56; H04L29/06
Foreign References:
| EP0535860A2 | 1993-04-07 | |||
| US5481537A | 1996-01-02 | |||
| EP0478190A2 | 1992-04-01 |
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