User's Manual
Table Of Contents
- BreezeMAX Extreme System Manual
- About This Manual
- Contents
- System Description
- 1.1 About WiMAX
- 1.2 WiMAX Network Architecture
- 1.3 BreezeMAX Extreme
- 1.4 Specifications
- Installation
- 2.1 BTS Installation
- 2.2 GPS Installation
- 2.3 Indoor Power Supply Installation
- 2.4 Cable Connections
- 2.5 External Antennas Connection
- Commissioning
- Operation and Administration
- 4.1 BreezeMAX Extreme System Management
- 4.2 The Monitor Program
- 4.3 IP Addresses Configuration
- 4.4 The Main Menu
- 4.5 BTS Menu
- 4.5.1 Show Summary
- 4.5.2 Show Properties
- 4.5.3 Configuration
- 4.5.4 Unit Control
- 4.5.5 Fault Management
- 4.5.6 Performance Counters
- 4.6 ASN-GW Menu
- 4.7 Sector Menu
- 4.8 BS Menu
- 4.9 Radio Channel Menu
- 4.10 Antenna Menu
- 4.11 GPS Menu
- 4.12 MS Menu
- 4.13 Parameters Summary
- Glossary
Chapter 4 - Operation and Administration BS Menu
BreezeMAX Extreme 144 System Manual
4.8.2.2.4.6 Downlink Basic Rate
When Downlink Multi Rate Support is enabled, the Downlink Basic Rate defines
the lowest rate that can be used by the multi rate algorithm in the downlink. MSs
that cannot communicate with the BS at this rate will not be served. This can be
used to deny service to MSs with very poor link conditions, thus improving the
overall capacity.
When Downlink Multi Rate Support is disabled, this is the fixed rate at which the
BS will communicate with all MSs it can serve.
The available options are:
QPSK-CTC-1/2 REP4
QPSK-CTC-1/2 REP2
QPSK-CTC-1/2
QPSK-CTC-3/4
QAM16-CTC-1/2
QAM16-CTC-3/4
QAM64-CTC-2/3
QAM64-CTC-3/4
QAM64-CTC-5/6
The default rate is QPSK-CTC-1/2.
4.8.2.2.4.7 Downlink Fade Margin
The system uses hard-coded SNR thresholds for rate-adaptation decisions
according to the Diversity Mode. The Downlink Fade Margin is added to the
downlink thresholds, thus enabling to change the actual thresholds used by the
downlink multirate algorithm (“reducing” the sensitivity according to the radio
planning).
The range is from 0 to 15 dB.
The default is 2 dB.