R BSS Operator Guide — DRAFT Vanu Anywave! February 8, 2008 c 2008 Vanu, Inc. Vanu, Inc. One Cambridge Center, Cambridge MA 02142 t 617.864.1711 www.vanu.
c 2008 Vanu, Inc. All rights reserved. Copyright ! The product described in this manual is covered by US patents 6,654,428; 6,584,146; 6,876,864; 6,889,354; 7,139,967; and pending patents in the United States and other countries. Vanu, Inc., the VANU logo, Anywave, and “Where Software Meets the Spectrum” are trademarks or registered trademarks of Vanu, Inc. in the United States and other countries. The product described in this manual includes copyrighted software. This software is commercial software.
Vanu Anywave BSS Operator Guide — DRAFT Contents 1 Introducing Vanu Anywave BSS 1 1.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1.2 Operator Guide Scope and Objectives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 1.3 Operator Guide Assumptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.4 Benefits of the Vanu Anywave BSS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Vanu Anywave BSS Operator Guide — DRAFT A Acronym Glossary 20 ii
Vanu Anywave BSS Operator Guide — DRAFT Chapter 1 Introducing Vanu Anywave BSS 1.1 Introduction Welcome to the Vanu Anywave Base Station System Operator Guide. This manual is designed to serve as an information resource for the Vanu system you will be deploying. This guide focuses on hardware preparation and deployment, and prepares you to provide first line technical support for the Anywave BSS.
Vanu Anywave BSS Operator Guide — DRAFT 1.
Vanu Anywave BSS Operator Guide — DRAFT 1.3 Operator Guide Assumptions This Operator Guide assumes that the audience will have working knowledge about the following topics: • Basic commands and usage of a Linux (or Unix) server, such as: user configuration, logging in, copying files, up- and down-loading files, file permissions, file editing, etc.
Vanu Anywave BSS Operator Guide — DRAFT 1.4 Benefits of the Vanu Anywave BSS The Vanu Anywave base station provides Radio Access Network (RAN) functionality by implementing a complete GSM Base Station Subsystem (BSS) in software on a single general-purpose server. Signal processing, protocol processing, and other radio access network functionality are implemented as application level software running on top of the Debian GNU/Linux operating system.
Vanu Anywave BSS Operator Guide — DRAFT 1.5 Network Operator Role As Network Operator, you will oversee project planning and deployment of all components for the wireless infrastructure, including the Vanu Anywave BSS. This process will require working with Vanu, Inc. Technical Support to ensure all required settings are appropriately determined, implemented and documented.
Vanu Anywave BSS Operator Guide — DRAFT Chapter 2 Anywave Components & Connections Your Anywave BSS system includes and interacts with many different hardware components, including: • The BSS server, which can act as individual or multiple parts of the Anywave System, depending on network resources and requirements (such as BSC/TRAU/BTS, or BTS only). • A Global Positioning System (GPS) timing reference. • A Radio Frequency (RF) Front End. • A Multi-Carrier Power Amplifier (MCPA). • A circuit breaker.
Vanu Anywave BSS Operator Guide — DRAFT 2.1 BSS Server A standard commercial rack-mounted server (such as the Dell Poweredge or HP ProLiant series) runs the Vanu BSS software on the Debian GNU/Linux operating system. A typical recommended server has redundant power supplies, fans and hard drives (RAID 1 array) to ensure that the BSS remains functional in the event of most hardware failures. Figure 2.
Vanu Anywave BSS Operator Guide — DRAFT 2.2 GPS Timing Source The Vanu Anywave System uses a Brandywine GPS4 to provide a precision time source for the BSS system. Figure 2.2: GPS4 Timing Source Connections The GPS unit provides three important sources of data for BSS functionality: • A 10 MHz signal • A 1 Hz or Pulse-Per-Second (PPS) signal • A precise value for time of day The 10 MHz clock is used as both a frequency reference and a sub-second time reference by the RF Front End.
Vanu Anywave BSS Operator Guide — DRAFT 2.3 RF Front End The wideband RF Front End performs transmission and reception over the air interface between the BTS and GSM mobile stations. Using a wideband multi-channel front end allows one BTS unit to transmit and receive multiple carriers over a bandwidth of 26 MHz. The RF Front End includes both the RF up/down converter and the digital RF subsystem, which perform digital filtering, timestamp injection and other functions.
Vanu Anywave BSS Operator Guide — DRAFT Figure 2.3: Protium RF Front End Block Diagram The figure above is a block diagram of the internal components that constitute the Protium RF Front End used by the Anywave System. When the BTS receives a signal from a mobile, an example path that data would follow would be: the RF signal is received through the Main Antenna port (labeled “TO ANT”) which is connected to the duplexer, which is used to separate the transmit and receive sides of the RF data.
Vanu Anywave BSS Operator Guide — DRAFT 2.4 Power Chassis and Power Amplifiers The Powerwave Chassis holds the Multi-Carrier Power Amplifiers (MCPAs) that are connected to each RF Front End in the network. The outputs from the RF Front End are sent to the MCPAs via RF cables, where the signals are amplified by +63 dB for broadcast over the antenna. Figure 2.
Vanu Anywave BSS Operator Guide — DRAFT 2.5 DC Breaker and Bus Bar The DC Breaker protects the Power Amplifiers from electrical surges and short circuits. Consult the “Equipment Setup Steps” chapter for proper connections from an MCPA to its associated breaker and power source (such as a rectifier). Figure 2.5: DC Breaker and Bus Bar, Front View Please Note: For proper surge protection, each MCPA must be connected to its own 50 amp breaker.
