User Manual

WipLL System Description
2-10 of 2-12 Issue 03
4Mbit - Draft 05
1QDF10134AAP-SYD-FCC
of users, etc. The SPR then sends its own information to the BSR. It is then
considered as being "associated" with the BSR and can start sending and receiving
messages from it.
In case the SPR is not included in the "Allowed SPR" list or the address it provides
for the BSR is incorrect no message will be sent to it and the association process will
be terminated.
2.4. QoS
Quality of Service (QoS) is the ability to recognize the type of the transmission and
assign bandwidth and other resources accordingly.
Resources are not necessarily only in terms of bandwidth but also in terms of delays,
packet loss rate and whether or not data needs to be retransmitted in case it is lost.
Figure 2-1 represents the idea behind the QoS. Some applications require more
network resources than others.
WEB Browsin
g
E-mail
File Transfer
Voice over IP
Video Conference
Figure 2-1: WipLL QoS Mechanism
QoS measurements are based on 2 factors, assigned traffic priority (0 through 7) and
Time-To-Live (TTL) factor (1 through 5):
1)
Network protocol - IP
2)
Transport protocol – TCP, UDP, ICMP
3)
Transport protocol and port number (based on application type)
4)
IP address