User's Manual

Navini Networks, Inc. Ripwave Base Station I&C Guide
Part #40-00047-00 Rev D v1.0 161
February 28, 2003
Layer 2 - Bandwidth
Field Name Values Description
Underload Threshold
(%)
80% The threshold crossing in which a BTS changes its load
congestion state from Overload (either Positive Access
Overload or Negative Access Overload) to Underload.
Overload Threshold (%)
85% The threshold crossing in which a BTS changes its load
congestion state from Underload to Positive Access
Overload.
Positive Access Overload
Threshold (%)
90% The threshold crossing in which a BTS changes its load
congestion state from Negative Access Overload to
Positive Access Overload.
Negative Access
Overload Threshold (%)
95%
The threshold crossing in which a BTS changes its load
congestion state from either Underload or Positive
Access Overload.
Reserved Channels for
Accesses
12
Number of channels reserved for access when in the
Underload state.
CPE Inactive Time (min)
15
When a CPE has not communicated with a BTS for the
set Inactive Time, the status of the CPE changes from
active to inactive, as expressed in minutes.
Bandwidth Adjust
Interval (10ms)
20 A user’s bandwidth (uplink or downlink) is adjusted
every Adjust Time if needed when on TCC. Expressed in
units of 10 milliseconds.
Realtime Session Hold
Time (10ms)
250 The length of time a user with realtime data holds RF
resources after the incoming packet queue is empty.
Expressed in units of 10 milliseconds.
Non-realtime Session
Hold Time (10ms)
250 The length of time a user with non-realtime data holds
RF resources after the incoming packet queue is empty.
Expressed in units of 10 milliseconds.
Non RT PreRelease BW
(Kbps)
0 - 2,048
Default is 32
The bandwidth a user is assigned while in Non-realtime
Session Hold Time. The Non RT PreRelease BW is in
units of MAC packets.
Denied Req Number
5
The number of consecutive times a user’s access request
fails due to lack of RF resources before access is denied.
Average LCC Q LEN
Factor
2 Factor used to determine the average LLC queue length.
Exponential For Average
1 Average exponent for all statistical variables but power.
Average Burst Time (ms)
50
Average time for a data burst, expressed in units of 10
milliseconds.
Max Bts Power (TCC
Power)
320 Maximum RF power a BTS has. It is in units of
maximum TCC power per channel. This field is not
configurable.
DL ACC Power Per
Channel (TCC Power)
8 Downlink ACC RF power per channel. It is expressed in
units of maximum TCC power per channel.
TCC Initial Setup Power
(%)
25% Initial setup power of a TCC channel. Expressed in units
of the percentage of the max. TCC power per channel.
Average Exponential
Factor
1 Average exponent for average power.
TCC Power per Channel
Range (dB)
19 Number of decibels the downlink TCC power per
channel can vary.
Min Realtime Data
Bandwidth (Kbps)
0 - 2,048
Default is 32
The minimum bandwidth a user with realtime data holds
that is not used for acknowledgement. Expressed in units
of MAC packets (data rate).