Minimum QOS Parameter Set in Transport Layer

QOS (Quality of Service) parameter definitions are the basis of further QOS control.But QOS parameters defined by orgallizations such as ISO and ITU are incoherent and incompatible. It leads to the inefficiency of QOS controls. Based on the analysis of QOS parameters defined by ISO and ITU, this paper first promotes Minimum QOS Parameter Set in transport layer. It demonstrates that the parameters defined by ISO and ITU can be represented by parameters or a combination of parameters of the Set. The paper also expounds that the Set is open and manageable and it can be the potential unified base for QOS parameters.