Nera WILINK I System Manual page 161

Chapter 4 - Operation and Administration
delays and are rather insensitive to jitter. QoS Profile parameters include
Committed Information Rate (CIR), Committed Time (CT) and Maximum
Information Rate (MIR) that limits the rate so that bandwidth intensive
services will not expand to occupy the full bandwidth.
Best Effort (BE) service is for services where neither throughput nor delay
guarantees are provided. The Subscriber Unit sends requests for bandwidth in
either random access slots or dedicated transmission opportunities. The
occurrence of dedicated opportunities is subject to network load, and the
Subscriber Unit cannot rely on their presence. Service parameters include
Committed Time (CT) and Maximum Information Rate (MIR).
Continuous Grant (CG) service is tailored for carrying constant bit-rate
(CBR) real-time services characterized by fixed size data packets on a periodic
basis such as VoIP or E1/T1. The Base Station schedules regularly, in a
preemptive manner, grants of the size defined at connection setup, without an
explicit request from the Subscriber Unit. This eliminates the overhead and
latency of bandwidth requests in order to meet the delay and jitter
requirements of the underlying service. Service parameters include Packet
Size (unsolicited grant size) and Sampling Rate (grant interval).
The priorities of allocating bandwidth to connections are in accordance with the
QoS Type of the connections, in the following order:
1 CG
2 RT
3 NRT
4 BE
For each of the RT, NRT and BE connection, there is a second level of priorities
according to the Committed Time (CT), where connections with CT=Short gets the
highest priority and connections with CT=Long gets the lowest priority.
The QoS Profile menu enables defining new QoS Profiles, viewing or editing
details of previously defined QoS Profiles and removing QoS Profiles from the
database.
The QoS Profiles database can hold up to 255 QoS Profiles.
The available QoS Profile parameters depend on the QoS Type. The configurable
QoS Profile's parameters are:
4.10.4.7.1 QoS Profile Name
A QoS Profile Name consists of up to 32 printable characters.
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WILINK I MODULAR BASE STATION SYSTEM MANUAL