User's Manual

Ripwave Base Station I&C Guide Navini Networks, Inc.
162 Part #40-00047-00 Rev D v1.0
February 28, 2003
Supported Modulations
QAM4
QAM4 QAM8
QAM4 QAM16
QAM4 QAM8 QAM16
The highest QAM Rank the BTS can process.
Total Priority Level
Num.
8
The total number of QoS classes the BTS can maintain.
Each class is associated with a priority.
Max Bandwidth for
Priority 1-8 (%)
1 default 85%
2 default 10%
3 default 5%
4-8 default 0%
The percentage of the total bandwidth a QoS class
associated with a certain priority is entitled to.
Layer 2 - WAN Congestion Control
Field Name Values Description
Average Queue Size
Weight (%)
100.0 For downlink, this value - expressed as a percentage -
indicates how much the current queue size contributes to
the calculation of the average queue size. The average
queue size is used by the BTS Resource Management
software to determine how many resources (Code
Channels) to give a CPE. The greater the weight, the
greater influence the current queue size has on the
average queue size. The lower the weight, the more the
queue size is an actual average of the current queue size
over time.
Max Queue Size (KB)
512 For downlink, the maximum queue size - in kilobytes -
for each priority queue (high, low, voice). Once the
queue is full (at Min Drop Threshold) all packets are
dropped.
Min to Max Drop
Probability (%)
10 For downlink, the probability of a packet being dropped
when the Min Threshold has been reached. The higher
this number, the more likely a packet will be dropped
between the Min Threshold and the Max Threshold.
NOTE: All packets are dropped at the Max Threshold.
Realtime Min Drop
Threshold (%)
100 For downlink, the minimum queue size in which voice
priority packets are considered for being dropped. For
example, if set to 10%, once the queue size reaches 11%
or more, voice priority packets may be dropped. The
Max Drop Probability field determines if a packet is
dropped once the Min Threshold is exceeded.
High Priority Min Drop
Threshold (%)
100 For downlink, the minimum queue size in which high
priority packets are considered for being dropped. For
example, if set to 10%, once the queue size reaches 11%
or more, high priority packets may be dropped. The Max
Drop Probability field determines if a packet is dropped
once the Min Threshold is exceeded.
Low Priority Min Drop
Threshold (%)
100 For downlink, the minimum queue size in which low
priority packets are considered for being dropped. For
example, if set to 10%, once the queue size reaches 11%
or more, high priority packets may be dropped. The Max
Drop Probability field determines if a packet is dropped
once the Min Threshold is exceeded.