Specifications

Chapter 4 - Operation and Administration Menus and Parameters
BreezeACCESS 4900 182 System Manual
 Proportional IR Factor: Sets up the percentage for the Proportional IR Factor
mechanism usage. The higher the value, the more weight the PIF algorithm
has in setting up the rates.
Valid values range from 0 to 100 (%).
The default value is 0 (%) (PIF is disabled).
 Proportional IR Update Period: Sets up the duration (in minutes) between
the periodical computation of MIR/CIR values used for uplink/downlink.
Valid values range from 1 to 30 (minutes).
The default value is 5 (minutes).
 Proportional IR Threshold Percentage: The percentage of the average rate
variation compared to the configured rate that, when exceeded, triggers (along
with the Proportional IR Threshold Rate) the used rate adjustment.
Valid values range from 0 to 100 (%).
The default value is 20 (%).
 Proportional IR Threshold Rate: If the transmission modulation falls below
this level, and the Proportional IR Threshold Percentage conditions are met
(see above), the rate adjustment is triggered.
Valid values range from 1 to 8 (modulation).
The default value is 5.
 Show Proportional IR Parameters: Displays all PIF parameters.
4.2.6.6.2.8 Graceful Degradation Limit (AU only)
Sets the limit on using the graceful degradation algorithm. In cases of over
demand, the performance of all SUs is degraded proportionally to their CIR
(IR=(100%-k%) x CIR).
The graceful degradation algorithm is used as long as , where K is the
Graceful Degradation Limit. Beyond this point the simple "brute force" algorithm
is used. The Graceful Degradation Limit should be raised in proportion to the
demand in the cell. The higher the expected demand in a cell, the higher the value
kK