User's Manual

28 MDS Mercury 16E Technical Manual MDS 05-6302A01, Rev. A
Creating a Service Flow
The Add New Service Flow button allows for a new service flow to be
created and configured. Pressing this button displays the following
dialog box.
Invisible place holder
Figure 17. Configuration QoS Screen
QOS Example: Low Latency
To create a service flow providing consistent low latency, the UGS
service type should be used. The grant interval should be set to match
the desired latency. For example, if the data source produces a packet
once every 20 milliseconds, then the grant interval should be 20
milliseconds (msec).
QOS Example: Controlling Bandwidth in Video Applications
To create a service flow that manages the bandwidth requirements of a
video stream, the Real-time Polling Service should be used. The
bandwidth-hungry nature of video needs to be balanced against the
limited bandwidth of the wireless channel. Often, a video stream does
not need to be of high quality in order to be useful. The Real-time
Polling Service allows for a minimum and maximum bandwidth to be
specified in order to bound the video stream.