System Description

WipLL System Description
2-10 of 2-12 Marconi Communications Ltd. MCIL -WIPLL-SDN_R2_00
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 Browsing
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
5) Session type - VoIP