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Chapter 4 - Operation and Administration
4.10.3.6.4
Uplink QoS Profiles
The
Uplink QoS Profiles parameter enables to define up to four QoS Profiles,
wher
e each entry is the QoS
Uplink Upper Priority Limits list. The list includes up to four QoS Profile Names
wh
ere each name must be one of the names that exist in the database after being
defin
ed using the QoS Profile menu. Each en
associated with the applicable entry in the Uplink Priority Ranges list.
4.10.3.6.5 Do
wnlink Upper Priority Limits
The
DownLink Upper Priority Limits list fu
Uplink Upper Priority Limits list, except that the ranges are defined for downli
com
munication.
4.10.3.6.6 Do
wnlink QoS Profiles
The Downlink QoS Profiles list functionality is the same as that of the Uplink Qo
Pro
files list, except that the QoS Profiles are associated with the entries in the
Do
wnlink Upper Priority Limits list.
4.10.3.7
QoS Profile
The QoS Profile defines the Quality of Service parameters that are applicable
wh
en the QoS Profile is used.
Differe
nt QoS Profile Types are available to support different s
requirements:
Re
al-Time (RT): The Real-Time polling service is designed to
of Real Time Variable Bit Rate like services characterized by requirements for
guaranteed rate and delay such as streaming video or audio. These s
are
dynamic in nature, but offer periodic dedicated reques
meet real-time requirements. Because the Subscriber Unit issues explicit
requests, the protocol overhead and latency is increased, but capacity is
gra
nted only according to the real needs of the connection. Q
parameters include Committed Information Rate (CIR) and Committed Time
(CT).
Non-Re
Real-Time polling service except that connections may utilize random acces
transmit opportunities for sending bandwidth requests. These Non Real Time
Variable Bit Rate s
minimum guaranteed rate, are characterized by requirement for a guaranteed
rate, but can tolerate longer delays and are rather insensitive to jitter. Qo
Profile parameters include Committed Information Rate (CIR),
Time (CT) and Maximum Information Rate (MIR) that limits the rate so
bandwidth intensive services will not expand to occupy the full bandwidth.
166
Profile associated with the applicable entry in the
al-Time (NRT): Non-Real-Time polling service is very similar to the
ervices, such as file transfer and Internet access with a
try in the Uplink QoS Profiles list is
nctionality is the same as that of the
ervice
ts opportunities to
oS Profile
BreezeMAX System Manual
,
nk
S
meet the needs
ervices
s
S
Committed
that
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