User Manual
Table Of Contents
- 4Motion System Manual
- About This Manual
- Contents
- Chapter 1 - System Description
- 1.1 About WiMAX
- 1.2 4Motion Solution
- 1.3 The Base Transceiver Station
- 1.4 Element Management Systems
- 1.5 Specifications
- 1.5.1 Modem & Radio
- 1.5.2 Sensitivity (per channel)*
- 1.5.3 ODUs
- 1.5.4 Micro Outdoor BTS
- 1.5.5 AU - ODU Communication (Macro BTS)
- 1.5.6 Data Communication (Ethernet Interfaces)
- 1.5.7 Configuration and Management
- 1.5.8 Standards Compliance, General
- 1.5.9 Environmental
- 1.5.10 Mechanical and Electrical
- 1.5.11 Antennas
- Chapter 2 - Commissioning of the Macro BTS
- 2.1 Initial NPU Configuration
- 2.2 Completing the Site Configuration Using AlvariSTAR
- Chapter 3 - Operation and Administration of the Macro BTS
- 3.1 Using the Command Line Interface
- 3.1.1 Managing the Macro Outdoor BTS
- 3.1.2 Accessing the CLI
- 3.1.3 Command Modes
- 3.1.4 Interpreting the Command Syntax
- 3.1.5 Using the CLI
- 3.1.6 Managing Users and Privileges
- 3.1.7 Managing Secure Shell (SSH) Parameters
- 3.1.8 Managing the Session
- 3.2 Managing Software Upgrade
- 3.1 Using the Command Line Interface
Chapter 1 - System Description The Base Transceiver Station
4Motion 21 System Manual
1.3.3 The Outdoor Micro BTS
Micro Outdoor BTS is a full-outdoor small form factor WiMAX Base Transceiver
Station. The Micro Outdoor BTS complements Macro BTS deployments providing
white spots coverage, cell extension and capacity boost. It provides excellent
cost/performance in addressing low dense population areas (rural & suburban). It
also provides an effective solution for installation constrained areas through
light-pole, roof-top or wall mount options.
The Micro BTS comprises a single BS and two integrated radios connected to an
external dual-slant antenna. The functionality of the Micro BTS is very similar to
that of a two-channel NAU unit (an NPU with a single two-channel AU) operating
with an external ASN-GW (Centralized architecture).
Micro BTS systems are currently available in the 2.5 GHz and 3.5 GHz bands.
1.3.4 ODUs for Macro (Indoor/Outdoor) BTS
The outdoor unit (ODU) is a high-power, multi-carrier radio unit that connects to
one or more external antennas. It is designed to provide high system gain and
interference robustness utilizing high transmit power and low noise figure. It is
HW-ready for supporting a bandwidth of up to 20 MHz for the 4x2 ODUs and 30
MHz for the 2x2 ODUs, enabling future options such as increased capacity
through the use of a multiplexer or wider frequency channels.
The following ODU port configurations will be available:
๎ 1x1(1Rx by 1 Tx): One receive port, one transmit port (one Tx/Rx interface)
๎ 2x2 (2Rx by 2Tx): Two receive ports, two transmit ports (two Tx/Rx interfaces)
๎ 4x2 (4Rx by 2Tx): Four receive ports, two transmit ports (two Tx/Rx interfaces,
two Rx only interfaces)
The wide range of ODU types will enable efficient utilization of various second and
fourth order transmit and receive diversity schemes. Some of the 4x2 and all 2x2
ODUs support Beam Forming capabilities for enhanced performance.
The following table provides details on the currently available ODUs following the
WiMAX Forumโs definitions: