Evolution of Signaling Information Transmission

Table 3

UMTS QoS classes.

QoS^aclass	Fundamental characteristics	Example of application
Conversational	Preserve time relation (variation) between information entities of the stream	Voice
	Conversational pattern (stringent and low delay)
Streaming	Preserve time relation (variation) between information entities of the stream	Streaming video
Interactive	Request response pattern	Web browsing
	Preserve payload content
Background	Destination is not expecting the data within a certain time	Background download of emails
	Preserve payload content

^aQoS: Quality of Service.