Patent ID: 6046985
Filing Date: 2000-04-04
Classification: H04L,H04N,H04Q

Abstract:
A communications system for transmitting and/or receiving data over a network including a plurality of nodes, whereby nodes may exchange information about their capabilities to support various communications,characterized in that said capability information includes at least one logical expression involving at least two or more inter-related parameters, wherein the value of at least one of the parameters is made dependent on the value of at least one other of the parameters by the logical expression and the capability information includes a specification of a plurality of quality of service parameters provided by a node, wherein a quality of service parameter is represented as a pair of values corresponding to a minimum and maximum range, andmeans for receiving a requested quality of service from an application intending to initiate data communications over said network, and for using said capability information for comparing the requested quality of service with the exchanged capability information in order to determine whether or not the intended data communications can be supported by the network.