Celletra C-ENCR-CBS021 Cellular CellEnhancer Unit User Manual Transmit Diversity Add On System

Celletra Ltd. Cellular CellEnhancer Unit Transmit Diversity Add On System

manual

Cellular Transmission Solutions Document No. 913004500 Rev. 0.0 i Celletra Proprietary Transmit Diversity Add-On System Assembly and Operation Manual October 2003 Document No. 913004500 Rev. 0.0 TDA Unit
Document No. 913004500 Rev. 0.0 ii Celletra Proprietary Copyright All data and information contained in or disclosed by this document is confidential and proprietary information of Celletra Ltd and all rights therein are expressly reserved. By accepting this material, the recipient agrees that this material and the information contained therein is held in confidence and in trust and will not be used, copied, reproduced in whole or in part, nor its Contents revealed in any manner to others, without the explicit written permission of Celletra Ltd. Changes are periodically made to the information contained in this manual. These changes are published in the "software/hardware release notes", and will be incorporated into new editions. All rights are reserved. No parts of this manual may be reproduced in any form, without permission in writing from Celletra Ltd. Copyright© 2003, Celletra Ltd. BEAMER® is a trademark of Celletra Ltd. Celletra Ltd. reserves the right to change specifications without notice. *All third-party trademarks are the properties of their registered owners.
Transmit Diversity Add-On System Assembly and Operation Manual Document No. 913004500 Rev. 0.0 iii Celletra Proprietary Preface • This manual provides instructions for mounting, setting-up, and monitoring Celletra’s TDA system. Celletra’s TDA system is only for installation indoors or in an outdoor shelter. WARNING Do not expose the TDA equipment to open-air moisture or rain. Record of Changes Change Description Initiated by Date 0 Release Erez Mutzafi October 2003 Repeater Software (TSM) Versions This manual covers the versions of the TDA System Manager (TSM) software version listed below. If your TSM version is not listed, check with Celletra or your Celletra dealer if this manual still applies. If it does, add the version number to this table. TSM Version Date 5.0.0.106 October 2003
Transmit Diversity Add-On System Assembly and Operation Manual Document No. 913004500 Rev. 0.0 iv Celletra Proprietary Safety Information This section describes the use of warnings, cautions, and notes in this manual. It is the user’s responsibility to follow all safety instructions and regulations. NOTE: Notes clarify issues. CAUTION This symbol indicates special CAUTION required in a procedure. CAUTION signs prevent actions that may result in equipment malfunction or damage. WARNING WARNING signs prevent actions that may result in harm to personnel.
Transmit Diversity Add-On System Assembly and Operation Manual Document No. 913004500 Rev. 0.0 v Celletra Proprietary CAUTION Changes or Modifications not expressly approved by Celletra Ltd. could void the user’s authority to operate the equipment. For customer and technical support, contact www.celletra.com or send an E-mail to support@celletra.com WARRANTY The following is to inform you that Celletra Ltd. warrants its products as per agreement. Exclusions The warranty (as per the agreement) shall not apply to defects resulting from: improper or inadequate use, unauthorized modifications or misuse. Warranty Limitations Under no circumstances will Celletra Ltd. be liable in any way to the user or any third party for damages, including any loss of profits, lost savings, or other incidental or consequential damages arising out of the use of, or inability to use, the product.
Transmit Diversity Add-On System Assembly and Operation Manual Document No. 913004500 Rev. 0.0 vi Celletra Proprietary System Measurement and Testing Warnings WARNING When testing the units in the lab or during field installation, always practice RF radiation safety rules. It is not recommended for service or lab personnel to work closer than two meters from the radiating antenna surfaces when the TDA system operates. CAUTIONS • Disconnect the AC or DC power to the TDA Unit before any cable is connected or disconnected from the unit. • Always use a DC block device connected to the measuring equipment input or output ports (spectrum analyzer, power meter, or RF signal source), when measuring is performed. • Do not connect or disconnect the coaxial connectors while power is applied to the TDA system. • Do not apply more than 0dBm of RF input power to any RF port of the TDA system, or irreversible damage may occur. • When measuring high power outputs, always verify that the equipment input port is capable of handling the expected output power. • During lab or field tests, with AC or DC voltage applied to the TDA Unit, do not use any mobile transmitters in a range of less than 10 meters from the unit. An unexpectedly high RF power might appear at the output ports, which might in turn damage the measuring equipment connected to that port.
Transmit Diversity Add-On System Assembly and Operation Manual Document No. 913004500 Rev. 0.0 vii Celletra Proprietary Glossary ABT Active Bias T BTS Base Transceiver Station CDMA Code Division Multiple Access dB Decibel measurement of gain and loss dBm Decibel measurement of power or amplitude, related to 1mW DL Down-link from the donor base station to the mobile users DLDU Down-link Diversity Units FWD forward HP High Power ICU Interface and Control Unit LPA Linear Power Amplifier M&C Monitoring and Control MRC Maximum Ratio Combining MS Mobile Station (cellular phone) mW Milliwatt NOC Network Operating Center PA Power Amplifier PCS Personal Communications Services RF Radio Frequency Rx Receive TD Transmit Diversity TDA Transmit Diversity Add-on TDR Time-Domain Reflectometer TDU Transmit Diversity Units TSM TDA System Manager Tx Transmit
Transmit Diversity Add-On System Assembly and Operation Manual Document No. 913004500 Rev. 0.0 viii Celletra Proprietary Table of Contents CHAPTER 1. INTRODUCTION.................................................................................................................. 1-1 1.1 About Celletra’s TDA System............................................................................................................. 1-1 1.2 TDA System Description.................................................................................................................... 1-2 1.2.1 Block Diagram..................................................................................................................... 1-2 1.2.2 General Description.............................................................................................................. 1-2 CHAPTER 2. INSTALLATION PROCEDURE........................................................................................... 2-1 2.1 Pre-installation Procedures ................................................................................................................. 2-1 2.1.1 Receiving and Inspecting the Units........................................................................................ 2-1 2.1.2 Required Tools and Test Equipment ...................................................................................... 2-2 2.2 Verify BTS Transmitted Power........................................................................................................... 2-2 2.3 Run Sweep Test................................................................................................................................. 2-2 2.4 Mount the TDA Unit.......................................................................................................................... 2-3 2.4.1 Mount the TDA Unit ............................................................................................................ 2-4 2.5 Mount the TDA System Sub-Modules................................................................................................. 2-4 2.5.1 Precautions.......................................................................................................................... 2-4 2.5.2 RF Connection..................................................................................................................... 2-5 2.5.3 Ground Connection .............................................................................................................. 2-6 2.5.4 TDA Input Power Measurement............................................................................................ 2-6 2.6 Prepare the Electrical Power Connections............................................................................................ 2-7 CHAPTER 3. TDA SYSTEM SETUP .......................................................................................................... 3-1 3.1 Install the TSM (TDA System Manager).............................................................................................. 3-1 3.1.1 Notify NOC (Network Operating Center)............................................................................... 3-1 3.1.2 Install the Software .............................................................................................................. 3-1 3.1.3 Power-on the TDA Unit........................................................................................................ 3-2 3.1.4 Connect the PC to the TDA Unit ........................................................................................... 3-2 3.2 Initial TSM Launch............................................................................................................................ 3-2 3.2.1 Authorization levels ............................................................................................................. 3-2 3.2.2 Define COMM Settings and Connection Type........................................................................ 3-5 3.3 Navigate the TDA System Setup and Configuration Windows............................................................... 3-6 3.3.1 Status and Control................................................................................................................ 3-6 3.4 Set the TDA Identification and Clock.................................................................................................. 3-8 3.4.1 TDA System Name and Number ........................................................................................... 3-8 3.4.2 TDA System Time and Date ................................................................................................. 3-9 CHAPTER 4. SYSTEM CALIBRATION..................................................................................................... 4-1 4.1 Access the System ............................................................................................................................. 4-1 4.2 Configuration .................................................................................................................................... 4-1 4.2.1 ICU Controller..................................................................................................................... 4-3 4.2.2 DLDL and Driver................................................................................................................. 4-5 4.2.3 Power Amplifier (PA) .......................................................................................................... 4-6 4.3 Calibration ........................................................................................................................................ 4-7 4.3.1 Main Tx Calibration ............................................................................................................. 4-7
Transmit Diversity Add-On System Assembly and Operation Manual Document No. 913004500 Rev. 0.0 ix Celletra Proprietary 4.3.2 Diversity (TD) Tx Calibration ............................................................................................... 4-8 4.4 TSM Software Version..................................................................................................................... 4-10 4.5 PC Disconnect from TDA Unit ......................................................................................................... 4-10 CHAPTER 5. SERVICING AND TROUBLESHOOTING THE TDA SYSTEM.......................................... 5-1 5.1 Servicing the TDA............................................................................................................................. 5-1 5.2 Troubleshooting ................................................................................................................................5-1 5.3 Log File ............................................................................................................................................ 5-2 5.3.1 Access the Log..................................................................................................................... 5-2 5.3.2 Display the Log.................................................................................................................... 5-3 5.3.3 Store the Log ....................................................................................................................... 5-3 5.3.4 View as HTML.................................................................................................................... 5-4 APPENDIX A. DEFAULT SYSTEM LIMITS .................................................................................................. 1 APPENDIX B. CONNECTOR PINS ................................................................................................................ 2 APPENDIX C. RECORDS ............................................................................................................................... 3
Document No. 913004500 Rev. 0.0 1-1 Celletra Proprietary Chapter 1. Introduction 1.1 About Celletra’s TDA System Celletra Transmit Diversity (TD) technology for CDMA signals enhances the forward link performance by improving the transmit power management, reducing blocking rate, and increasing capacity. The TD technology is available as an add-on to existing (legacy) base stations. In this case, separate components are added to an existing cell site to enhance the performance that can be achieved by the cell site alone on a per-sector basis. This overview of the technology will provide some insights regarding how the TD solution can be applied to a cell site to enhance capacity performance at the site. Add-on Transmit Diversity (TDA) provides for redundant replicas of transmitted signals (from the base station) by transmitting the same information over two or more antennas, providing independently faded channels between the BTS transmit and mobile receive antennas. In order to maintain the total transmitted power (or EIRP), each of the two base station transmit antennas in a TDA system has to transmit a minimum of 50% of the power from a conventional one transmit antenna system. Alternatively, higher power may be transmitted in addition to diversity gain by the two antennas (main and diversity). In this case, the cell footprint in the Down-link will increase, or (after down-tilting the antennas) the same coverage with higher capacity is obtained. The TDA system reduces the per-link-power required for the mobile station (phone). Moreover, reducing the blocking-rate and access-failures improves the cell forward (FWD) link capacity. As a result, in FWD link limited sites, sector erlangs increase. The TD process is carried out only at the base station; no modifications are required at the mobile handset. This gives TDA a clear advantage over other transmit diversity schemes such as OTD and STS which require new chipsets to be included in the mobile handset.
Transmit Diversity Add-On System Assembly and Operation Manual Document No. 913004500 Rev. 0.0 1-2 Celletra Proprietary 1.2 TDA System Description 1.2.1 Block Diagram Figure 1-1 describes the TDA system. TDA UnitBTS (CDMA - Cellular)TransmitDiversityUnit TX DiversityAntennaTx1/Rx1OutdoorsShelterFRMCouplerDPMRx2 Rx1 Tx1CDMA, 1 carrierTDUAttenuator-48VDCMajorAlarmTB - No connectorCablesPanelGroundLPACB - TB TX/RXMainAntennaAntennasInstallation(Top-view)TowerRx2DiversityPort Figure 1-1 TDA block diagram 1.2.2 General Description The Celletra TDA system consists of the TDA Unit and Coupler: The TDA Unit interfaces transparently to the BTS at RF low-power levels. The TDA Unit generates the Transmit Diversity (TD) signals and power-amplifies the TD signals to be transmitted through the Tx-Diversity antenna.
Document No. 913004500 Rev. 0.0 2-1 Celletra Proprietary Chapter 2. Installation Procedure NOTE: Installing the TDA system requires site parameters, including the channel number in use, gain settings, and required sector power. If necessary, consult your network administrator for more information. 2.1 Pre-installation Procedures 2.1.1 Receiving and Inspecting the Units CAUTION Verify that the shipment is complete and undamaged. If the boxes appear damaged, do not open the shipment. NOTE: It is recommended to save the original shipping carton and packing materials for any future transportation of the TDA System. Follow this procedure prior to installation: 1. Unpack the shipment boxes. 2. Verify the contents of the boxes against the packing inventory lists. 3. Inspect the TDA system for possible damage. The following items are required for the installation. They are supplied separately. • Documentation: This Assembly and Operation Manual. • Software: TSM (TDA System Manager) CD, ready for installation. This software is for setup and tuning of the system during installation. Instructions for using TSM are located in Chapter 3. & Error! Reference source not found.
Transmit Diversity Add-On System Assembly and Operation Manual Document No. 913004500 Rev. 0.0 2-2 Celletra Proprietary 2.1.2 Required Tools and Test Equipment Table 2-3: Tools and test equipment Equipment Use Digital Voltmeter Fluke 77 or equivalent Measure voltage and polarity for the installation process Pilot Scanner Measure Donor pilot signal levels Frequency domain Reflectometer Check Insertion loss and VSWR for system RF Cables Network Analyzer (optional) Check Insertion loss and VSWR for system RF Cables PCS Band Signal Generator Check diversity path gain Spectrum Analyzer Check TDA Unit Output Power 30dB 100W attenuator (PCS Band) Protect RF Test equipment from overpowered signals Standard calibrated jumper cables Test equipment usage Laptop PC equipped with Windows 95, 98, NT, or Windows 2000 with Service Pack 3. Configure, control, and monitor the TDA using the TSM software through the RS-232 communication port 2.2 Verify BTS Transmitted Power Verify that the BTS is running normally, transmitting a certain output power. Find a calibrated Tx test point to measure the BTS output power (Tx, Down-link). Measure the BTS power and record it including the date and time. If such a calibrated test-point does not exist, refer to 2.5.4. The Traffic load should be taken into account while setting up the TDA system. Allow a suitable power margin for possible load rise. In any case, refer to the measured pilot power as the sector reference level. The pilot power is usually fixed. Add 7.5dB to this level to estimate the maximal Tx power of the sector. Record the above main Pout max. as "Main Path Power Before TDA System" in Appendix C. 2.3 Run Sweep Test Before installing the cables in the system, run a sweep test of all RF cables and record the cable loss (see Table 2-4 for RF cable list). Perform the sweep test using a Time-Domain Reflectometer or a Network Analyzer. Record these parameters for each RF cable: • Insertion loss of the cable • VSWR • Return loss
Transmit Diversity Add-On System Assembly and Operation Manual Document No. 913004500 Rev. 0.0 2-3 Celletra Proprietary If you detect a fault in any of the cables, repair it and re-check until all the cables are in order. NOTE: Record the information for reference during the setup procedure in Appendix C. Table 2-4: RF cables sweep test Cable # Cable Description Insertion Loss Return Loss Remarks From To W2 FRM Tx1/Rx1 Coupler W3 Coupler Attenuator W5 TDA Unit Cable Panel DIV LG1 Coupler Cable Panel Main Legacy Cable LG2 Cable Panel Main Tx/Rx Main Antenna Legacy Cable LG3 Cable Panel DIV Tx DIV Antenna Legacy Cable 2.4 Mount the TDA Unit The TDA Unit should be installed preferably near the FRM output RF port. CAUTION The TDA Unit is a complex and accurate electrical apparatus and should be treated accordingly. Use extra caution when installing the unit in the rack. WARNING The TDA Unit does not have an ON/OFF switch. Therefore, do not connect the DC supply to this unit until the end of the installation.
Transmit Diversity Add-On System Assembly and Operation Manual Document No. 913004500 Rev. 0.0 2-4 Celletra Proprietary WARNING RECAP THE POWER AND COMMUNICATION CONNECTORS UNTIL THE TDA SYSTEM IS READY TO BE SET UP. DO NOT CONNECT POWER YET. 2.4.1 Mount the TDA Unit 1. Place the TDA Unit in the rack. 2. Tighten the four screws at the Unit sides. Figure 2-1 TDA Unit front panel 2.5 Mount the TDA System Sub-Modules 2.5.1 Precautions CAUTIONS • Always shut down the AC or DC supply to the TDA Unit before handling replacing or removing the Unit from the rack. • While you may disassemble the TDA Unit from the rack as required, under no circumstances should you open the unit.
Transmit Diversity Add-On System Assembly and Operation Manual Document No. 913004500 Rev. 0.0 2-5 Celletra Proprietary 2.5.2 RF Connection TDA UnitBTS (CDMA - Cellular)TransmitDiversityUnit TX DiversityAntennaTx1/Rx1OutdoorsShelterFRMCouplerDPMRx2 Rx1 Tx1CDMA, 1 carrierTDUAttenuator-48VDCMajorAlarmN-MN-MN-MN-MN-MTB - No connectorW1W2W37-F7-MW5W6N-M or 7-M7-F7-MCablesPanelN-M & N-FGroundLPACB - TBW7 TX/RXMainAntennaAntennasInstallation(Top-view)TowerRx2DiversityPort Figure 2-2 TDA cables connection The main Tx path must be open when installing the sampling coupler. Therefore: 1. Contact the Network Operating Center (NOC) to get permission to wilt the station. WARNING Disconnecting the main Tx path without wilting the station may cause damage to the station or to personnel.
Transmit Diversity Add-On System Assembly and Operation Manual Document No. 913004500 Rev. 0.0 2-6 Celletra Proprietary 2. Wilt the sector. 3. Open the main Tx path so that the sampling coupler can be installed. 4. Connect the coupler inline at the DPM Tx/Rx antenna port, using a male-male N-type adapter or a short cable (W2). 5. Reconnect the legacy cable to the other (open) dircet side of the coupler. Use connector adapter if required. 6. Connect W3 and the Attenuator between RF IN port on the TDA Unit and the Coupled Port of the coupler. 7. Connect W5 between the Tx Div antenna port (RF OUT) on the TDA Unit and the bulkhead. CAUTION Do not provide DC power to the TDA Unit yet. 2.5.3 Ground Connection Make sure to connect the TDA Unit to the frame's chassis or the ground buss bar in the shortest way possible. Do not chain the ground connection between units. CAUTION If you are using a 3-phase outlet system, do not connect any Ground to the Neutral. 2.5.4 TDA Input Power Measurement 1. Bloom the station. Verify that the station transmits a pilot signal only. 2. Don’t turn the TDA Unit power on. 3. Disconnect the attenuator from the TDA Unit. 4. Measure the pilot power from the attenuator. Record this level. Make sure that the attenuator is connected to W3. 5. Do not allow the power to exceed 0dBm. 6. Reconnect the attenuator to the TDA Unit. 7. Calculate the BTS output max. power. Pout max. = Ppilot + 7.5dB + Attloss + W3loss + Couplerloss where
Transmit Diversity Add-On System Assembly and Operation Manual Document No. 913004500 Rev. 0.0 2-7 Celletra Proprietary Attloss = 20dB W3loss = W3 Insertion loss, as measured in Table 2-4 [dB] Couplerloss = 30dB Pout max. = Ppilot + 7.5dB + 20dB + W3loss + 30dB Pout max. = _______dBm Record the above main Pout max. as "Main Path Power After TDA System" in Appendix C. 2.6 Prepare the Electrical Power Connections CAUTION Power to the units must be supplied according to the safety standards in the corresponding country (grounded outlets, circuit breaker, conduits, etc.). Check the power cable before connecting it to the units. NOTE: Fuse is located on the TDA Unit front panel. Ensure the fuse is pushed in. 1. Supply power to the TDA Unit. 2. Verify that the unit is working properly by connecting directly with a PC as explained in the next Chapter.The three fans at the front panel are working only in case of excessive internal temprature. Thus, in an airconditioned site they may stay idle for long time priods.
Document No. 913004500 Rev. 0.0 3-1 Celletra Proprietary Chapter 3. TDA System Setup The general term for the software that manages Celletra's system is the Celletra System Manager. The software can process several types of systems (Repeaters, Cell-On-Wheels upgrade, etc.). The software for the TDA system type is called the TSM (TDA System Manager). TSM features: • TDA System monitoring • TDA System control: setting and tuning • Local (direct) connection to the TDA System Follow the steps in this chapter to install and set up the TSM software for initial use. Chapter 4. explains how to use TSM for maintenance and calibration procedures. 3.1 Install the TSM (TDA System Manager) The PCs on which the software will be installed must meet these minimum requirements: • PentiumTM-based • Available serial port • 4Mb free RAM or more • Windows* 95, 98, or NT*, or Windows 2000 with Service Pack 3. 3.1.1 Notify NOC (Network Operating Center) Notify NOC of the new System installation. 3.1.2 Install the Software 1. Insert the CD-ROM provided by Celletra in the CD drive and run Setup, located in the Package folder. 2. Follow the instructions. The installation software installs the program bsm.exe in the Program Files folder on your C: drive. 3. Create a shortcut on your desktop to bsm.exe. The shortcut icon is Celletra's triple hexagon symbol. 4. Copy the bsmutils folder from the CD-ROM to the root of your C: drive (C:\).
Transmit Diversity Add-On System Assembly and Operation Manual Document No. 913004500 Rev. 0.0 3-2 Celletra Proprietary NOTE: When installing on Windows 98, you may be asked whether to keep an existing file called Richtx32.ocx or replace it with a new version. Select No. 3.1.3 Power-on the TDA Unit If the TDA Unit is not turned on, power-on the TDA System by connecting the power cord to the TDA unit, and lidt-up the circuit breaker. 3.1.4 Connect the PC to the TDA Unit You may setup and monitor the TDA System through local connection, using the communication cable supplied by Celletra, connected to the C&M –Type connector. 3.2 Initial TSM Launch Double-click the TSM icon on your desktop. The TSM menu bar appears. Figure 3-1 TSM menu bar If your system is connected to comm port 1, the system block diagram also appears. Section 4.2 describes fully how to use this block diagram to maintain your system parameters. 3.2.1 Authorization levels
Transmit Diversity Add-On System Assembly and Operation Manual Document No. 913004500 Rev. 0.0 3-3 Celletra Proprietary AUTHORIZATION First time access to the system does not require you to enter a password. You will automatically be granted the authorization of an Administrator. NOTE: This is the right time to define the passwords for all authorization levels. After the first time you use TSM, you will access the software with one of these authorization levels. Guest No password is required. Shows most definitions and some monitored parameter values. No editing is permitted. Operator Shows all definitions and monitored parameter values. Provides edit capability to Modem Number field (TSM menu, System, Modem Definitions) only. Supervisor Provides access to all configuration and editing options except for password, date, and time changes. Administrator Provides access to all configuration and editing options including password changes. Access the system at the appropriate level by entering the corresponding password. AUTHORIZATION This symbol alerts you to the authorization level required for the different procedures described below. 3.2.1.1 Define Passwords AUTHORIZATION Administrators can perform this procedure. The Guest authorization level does not require password definition. You can define a single password for each of the other authorization levels. The passwords you set here apply across the whole TDA System. Define the passwords as follows:
Transmit Diversity Add-On System Assembly and Operation Manual Document No. 913004500 Rev. 0.0 3-4 Celletra Proprietary 1. From the Password menu, choose Change. The following window appears. Figure 3-2 Authorization levels 2. Click an authorization level. 3. Enter a password by typing it twice, then click OK: Figure 3-3 Set password 4. Repeat for the other two authorization levels. 5. Click OK. 3.2.1.2 Access the System After the initial entry to TSM, whenever you click the desktop icon you will enter TSM with guest authorization. To change from the Guest authorization level: 1. From the Password menu, select Enter Password. The following dialog appears showing the current authorization level.
Transmit Diversity Add-On System Assembly and Operation Manual Document No. 913004500 Rev. 0.0 3-5 Celletra Proprietary Figure 3-4 Password entry 2. Enter the Password corresponding to the authorization level you require. 3. Click OK. NOTE: All authorization levels revert to Guest level after five minutes of inactivity. To change from a higher authorization level to Guest level, select Low Level from the Password menu. 3.2.2 Define COMM Settings and Connection Type Connect to the TDA System as follows: 1. Connect the supplied RS-232 cable between the serial port on the PC and the RS-232 port on the TDA Unit. 2. Click the CommSetting menu. The Comm Setting dialog appears, as shown in Figure 3-5. Comm’s appears in that screen are according to the Comm ports avaliable in your computer. Figure 3-5 Comm setting dialog
Transmit Diversity Add-On System Assembly and Operation Manual Document No. 913004500 Rev. 0.0 3-6 Celletra Proprietary 3. Under Comm Number, click the radiobutton corresponding to your PC modem port. 4. Under Connection, click the RS-232. Modem option is not is use. 5. Click OK. 3.3 Navigate the TDA System Setup and Configuration Windows All TDA System setup and configuration functions are implemented from a single menu option. To access the TDA System setup, click the System menu. The following tabs appear. Configuration tab For monitoring. This dialog shows a block diagram of the TDA sysem, where each unit in the block diagram (PA, Driver,…) provides access to corresponding monitoring options. Section 4.2 fully explains this block diagram and the data it displays. Status and Control tab For setup. Contains site information, gains, cable loss definitions, and power monitoring. See Section 3.3.1. 3.3.1 Status and Control Figure 3-6 shows the dialog that appears when you click the Status and Control tab. The System Type for the TDA system is 21. With this tab you can change setup parameters such as • Site Information • Cable loss • PA status (Distribution PA) • PA ON/OFF • PA output power (‘Output Power [dBm] Amlifier’) • Output power to antenna (‘Output Power [dBm] Antenna’) • Downlink Gain [dB] • Actual Main Gain (monitoring) • ICU status • LPU ststus
Transmit Diversity Add-On System Assembly and Operation Manual Document No. 913004500 Rev. 0.0 3-7 Celletra Proprietary Figure 3-6 Status and Control screen AUTHORIZATION As discussed in Section 3.2.1, Guest and Operator levels users are only authorized to monitor parameters. Supervisor and Administrator level users are authorized to monitor and change parameters. NOTE: Fields with white backgrounds can be modified. Other fields (with black and gray backgrounds) are only for display. To make changes to displayed parameters: 1. Click the Stop Refresh button so that the data ceases updating on the screen. 2. Make your modifications. 3. Click Apply to save your changes, or Refresh to cancel. You may be asked to confirm your changes. 4. Wait for the changes to take effect. 5. Click X in the top right corner to close the dialog. Stop/Start Refresh button
Transmit Diversity Add-On System Assembly and Operation Manual Document No. 913004500 Rev. 0.0 3-8 Celletra Proprietary 3.4 Set the TDA Identification and Clock When status messages are sent by the TDA System to the TSM, the specific TDA System sending the information is identified according to the following parameters, explained below: • TDA System number • Site name • Time stamp set by real-time clock settings • Contact information (or call-back number) 3.4.1 TDA System Name and Number AUTHORIZATION Administrators and Supervisors can perform this procedure. The TDA System identification details are for your record-keeping. Change them in keeping with your company policy. 1. From the TSM System window, choose the Status and Control tab. Figure 3-7 TDA System: Number, Name, and Type
Transmit Diversity Add-On System Assembly and Operation Manual Document No. 913004500 Rev. 0.0 3-9 Celletra Proprietary 2. Type a TDA System number in the range 1 through 999. 3. Type a TDA System name (alphanumeric) using a maximum of 20 characters. (You must enter both a name and a number.) 4. The system type should be 21 for the TDA System. 5. Click the Start Refresh button. 3.4.2 TDA System Time and Date AUTHORIZATION Administrators can perform this procedure. NOTE: This procedure sets the TDA System date and time to the corresponding values on the PC. To ensure that the generated logs are accurate, check that the PC date and time are correct. To set the time and date for the TDA System: 1. Select the Configuration tab. 2. Click the ICU Controller button as indicated below. The CTRLR Status dialog shown in Figure 3-9 appears showing the status of the ICU. Figure 3-8 Configuration screen Click the TDA Controller button
Transmit Diversity Add-On System Assembly and Operation Manual Document No. 913004500 Rev. 0.0 3-10 Celletra Proprietary Figure 3-9 CTRLR Status high level 3. Update the date: a. Use the cursor to highlight the CTRLR Date box. If your current authorization level is Operator or Supervisor, you are prompted to enter the Admin Password. b. Press the Delete button on the keyboard. c. Click Apply twice. The Date updates automatically according to the date on your PC. 4. Update the time: a. Use the cursor to highlight the CTRLR Time box. If your current authorization level is Operator or Supervisor, you are prompted to enter the Admin Password. b. Press the Delete button on the keyboard. c. Click Apply twice. The time updates automatically according to the time on your PC. 5. Click OK. Voltage supply to controller card Controller status Controller date Controller time
Document No. 913004500 Rev. 0.0 4-1 Celletra Proprietary Chapter 4. System Calibration This chapter explains how to use the TSM software to calibratein and maintain the TDA System. 4.1 Access the System When you click the desktop icon, you enter TSM with guest authorization. To change from the Guest authorization level: 1. From the Password menu, select Enter Password. The following dialog appears showing the current authorization level. Figure 4-1 Password entry 2. Enter the Password corresponding to the authorization level you require. 3. Click OK. NOTE: All authorization levels revert to Guest level after five minutes of inactivity. To change from a higher authorization level to Guest level, select Low Level from the Password menu. 4.2 Configuration The Configuration tab shows schematically the TDA configuration for the single sector. It enables monitoring of all the sub-units in the system so that the experienced user can manually change parameters that have been set up automatically for each of the sub-units. Figure 4-2 shows the TD and Main paths with Celletra's system. To invoke the Configuration block diagram, select the Configuration tab.
Transmit Diversity Add-On System Assembly and Operation Manual Document No. 913004500 Rev. 0.0 4-2 Celletra Proprietary Figure 4-2 Configuration screen Units in the block diagram are colored as follows: Color Indication Green Correct functioning Yellow Minor misfunction Red Failure Using any authorization level other than Guest, click each sub-unit to view the corresponding data. The sub-units, from left to right: LPU Controller Monitors the LPU controller status , Temperature and LPU Alarms. DLDU and Driver Down-link diversity unit and Driver monitor and Control. PA LPA ststus and Control parameter. Set PA ON or OFF. TDA Unit Controller Updates date and time, and monitors controller status and input voltage. Accesses additional dialog showing TDA Unit Controller Status parameters from which the Controller Parameters dialog is invoked. TDA Unit Controller DLDU (Down Link Diversity Unit Driver Power Amplifier LPU Controller
Transmit Diversity Add-On System Assembly and Operation Manual Document No. 913004500 Rev. 0.0 4-3 Celletra Proprietary The displays correlating to each sub-unit are shown in the next sections. AUTHORIZATION Guests cannot perform these procedures. 4.2.1 ICU Controller Click Controller to make the screen in Figure 4-3 appear. The screen consists of • Controller card input voltage • Controller card status • Date • Time 4.2.1.1 Input Voltage The unit is functioning correctly when Input voltage is 24±4V. Figure 4-3 CTRLR status high level 4.2.1.2 Date To update the date: 1. Use the cursor to highlight the CTRLR Date box. If your current authorization level is Operator or Supervisor, you are prompted to enter the Admin Password. 2. Press the Delete button on the keyboard. Click the CTRLR field to invoke the ICU Controller Status details window, shown in Figure 4-4
Transmit Diversity Add-On System Assembly and Operation Manual Document No. 913004500 Rev. 0.0 4-4 Celletra Proprietary 3. Click Apply twice. The Date updates automatically according to the date on your PC. 4.2.1.3 Time To update the time: 1. Use the cursor to highlight the CTRLR Time box. If your current authorization level is Operator or Supervisor, you are prompted to enter the Admin Password. 2. Press the Delete button on the keyboard. 3. Click Apply twice. The time updates automatically according to the time on your PC. 4. Click OK. 4.2.1.4 Controller Card Status Figure 4-4 shows details of the controller status. This screen is invoked by clicking the CTRLR field in Figure 4-3. When all the parameters are OK, the unit is functioning correctly. Figure 4-4 Controller status details Click the Parameters field to invoke ICU Controller parameters window, shown in Figure 4-5
Transmit Diversity Add-On System Assembly and Operation Manual Document No. 913004500 Rev. 0.0 4-5 Celletra Proprietary Figure 4-5 displays ICU Controller parameters. Invoke this screen by clicking the Parameters field in Figure 4-4. When all the parameters are OK, the unit is functioning correctly. Figure 4-5 CTRLR parameters 4.2.2 DLDL and Driver Click DLDL and driver to open the screen shown in Figure 4-6. This screen enables • Monitoring the Address and Location of the Driver • Monitoring the ALC Status and setting • Set ALC power level • Monitoring Actual ALC power. When the Set ALC Power and the Actual ALC Power are not equal the ALC (Automatic Level Control) is ON • Changing the unit attentuator setting • Monitoring the status of the Unit Current Setting the attenuators is an advanced system optimization process.
Transmit Diversity Add-On System Assembly and Operation Manual Document No. 913004500 Rev. 0.0 4-6 Celletra Proprietary Figure 4-6 Driver & ALC Status The unit is functioning correctly when • Set ALC Power and Actual ALC Power are equal • Current is OK Click Pause Updating in order to change the ALC Power. 4.2.3 Power Amplifier (PA) Click PA to make the screen in Figure 4-7 appear. This screen enables: • monitoring of the P out and Temperature of the unit. • Turn the PA ON or OFF Figure 4-7 PA monitoring The unit is functioning correctly when Pout range is 32dBm to 42dBm . Click Turn OFF in order to switch the PA OFF. Click OK when the acceptance dialog box appeare.Click Turn On in order to switch the PA ON.
Transmit Diversity Add-On System Assembly and Operation Manual Document No. 913004500 Rev. 0.0 4-7 Celletra Proprietary 4.3 Calibration This section describes the calibration procedure for the Transmit Diversity (TDA) system. The objective of this procedure is to set the Tx power correctly in the diversity path in respect to the main path, after the TDA system installation. The TDA system calibration refers to the two transmission branches: • Main Tx • Diversity Tx The Transmit Diversity mechanisim functions best with equal radiated power from the main and diversity antennas. Moreover, the TDA system enables the overall Tx power transmitted by the two transmission paths (main and diversity) to be higher than that of the legacy BTS Tx power. The overall sector power with the TDA system (including main and diversity) is determined by the operator according to network planning. Once the main path is calibrated by adjusting the BTS output power, the power to the diversity transmit antenna is calibrated by adjusting the digital controllable gain of the TDA Unit via the TSM software. NOTE: All of the steps in the following calibration procedure are on a per sector basis. Repeat all the steps for other sectors with the TDA system, where applicable. 4.3.1 Main Tx See Figure 4-8. Set the BTS output power as follows: 1. Verify that the station is transmitting. 2. Calculate Pout max. as per Section 2.5.4. 3. Record the main Pout max. as "Main Path Power with TDA System" as in Appendix C. NOTE: The calibration procedure involves just gains in Main and Diversity branches. The power is recorded for reference only.
Transmit Diversity Add-On System Assembly and Operation Manual Document No. 913004500 Rev. 0.0 4-8 Celletra Proprietary TDA UnitBTS (CDMA - Cellular)TransmitDiversityUnit TX DiversityAntennaTx1/Rx1OutdoorsShelterFRMCouplerDPMRx2 Rx1 Tx1CDMA, 1 carrierTDU-48VDCMajorAlarmN-MN-MN-MN-MTB - No connectorW1W2W37-F7-MW5W6N-M or 7-M7-F7-MCablesPanelGroundLPACB - TBW7 TX/RXMainAntennaAntennasInstallation(Top-view)TowerRx2DiversityPortAttenuatorN-MN-FPowerMeasurementEquipmentLG3 LG2LG1TDA Gain Figure 4-8 Tx measurements setup 4.3.2 Diversity (TD) Tx Calibration Calibrate the diversity path Tx power. 1. Click the Status and Control tab (Section 3.3.1). 2. Enter the Cable Loss [dB] (W5) according to Table 2-4, W5 Insertion loss [dB]. 3. Read the Antenna “Output Power [dBm]” from the TSM screen. Antenna Power [dBm] = Amplifier Power [dBm] – Cable Loss [dB] Where the cable loss is a positive value in dB.
Transmit Diversity Add-On System Assembly and Operation Manual Document No. 913004500 Rev. 0.0 4-9 Celletra Proprietary Figure 4-9 TDA System: Number, Name, and Type 4. Get the main and diversity antennas and the coax cables data from the cable shelf to the antennas. Look for the details belo: • Cable types and lengths • RF attenuations at operating frequency [dB] • Antenna types [verify that both sector antennas are isentical] 5. Measure the RF loss for the main and diversity paths according to. Main path loss = W2 + LG1+LG2 ≡ A Diversity path loss= W2+Coupler Loss (30dB) + W3 + Att loss (20dB)+ +W5+LG3 ≡ B Comments: 1. All losses (W2÷ W5, LG1÷ LG3) are positive values in dB 2. If adapter is used instead of W2 the loss is negligible 3. Coupler insertion loss is negligible 6. Calculate the TDA required gain (Downlink Gain [dB]) according to: Set Gain [dB] = B – A 7. Set the Set Gain integer value in the Ststus and Control screen rounding up (B – A). 8. Record the above Gain as " TDA Unit Downlink Gain Setting" in Appendix C.
Transmit Diversity Add-On System Assembly and Operation Manual Document No. 913004500 Rev. 0.0 4-10 Celletra Proprietary 4.4 TSM Software Version Select the About menu to view the TSM software version. Figure 4-10 TSM software version 4.5 PC Disconnect from TDA Unit 1. Close TSM. 2. Disconnect the PC from the TDA Unit.
Document No. 913004500 Rev. 0.0 5-1 Celletra Proprietary Chapter 5. Servicing and Troubleshooting the TDA System 5.1 Servicing the TDA The TDA system does not require any maintenance activities. 5.2 Troubleshooting The following table details some common problems and recommended solutions. NOTE: For unsolved problems or difficulties, contact Celletra Technical Support at support@celletra.com Table 5-1: Troubleshooting Error/Fault Check System not responding to the TSM • Check that all the TDA - PC connectors are firmly connected. • Verify proper installation and power connections to the TDA. (Check AC or DC input voltage). Monitoring and control problems • Check RS-232 cable connection; verify serial comm. port definition on the TSM software. • Check communication cable (For connector pin out refer to Appendix B). • Check the PC serial port. Low/No RF Power Operate TSM software and check the following parameters: • DC power level in the TDA • System setup • In/Out RF power If the input seems OK yet the output is faulty, replace the unit and re-configure the system setup. System Alarms 1. In the Configuration screen, look for alarms in the unit, where the frame may be colored red or yellow. 2. Drill down to the unit that shows a red or yellow frame. 3. If the PA is OFF, try to turn it ON. 4. If the PA does not go ON, replace the TDA unit.
Transmit Diversity Add-On System Assembly and Operation Manual Document No. 913004500 Rev. 0.0 5-2 Celletra Proprietary 5.3 Log File The log file records system events such as malfunctions or TDA powering-on. AUTHORIZATION Only Administrators can perform this procedure. 5.3.1 Access the Log Access the log file by selecting Get ICU Log from the File menu in the TSM. Following is an example of the log file display. Figure 5-1 Log file If no information is displayed, a serious communication problem is indicated. You can manipulate the data stored and displayed using the menu bar shown at the top of the log file screen. To exit the log file, click Exit in the File menu. For more information about a particular error, go to the System Configuration block diagram and double-click the malfunctioning unit.
Transmit Diversity Add-On System Assembly and Operation Manual Document No. 913004500 Rev. 0.0 5-3 Celletra Proprietary 5.3.2 Display the Log The log file provides the following information for each event. Name Explanation Failure Time The time at which the event occurred. Sub-System Type The unit where the event occurred. Sub-System HO Logical address of the unit. Failure Code Code (from the protocol) Failure Description Describes the problem in brief, for example, ICU Control Status. Failure Priority The failure severity assigned to the event, as described in Table B-3. Options are "Fail" (minor) and "Major fail". Failure Value Options are Fail, Timeout, Low, or Off. BitStream Any relevant data from the bit stream. 5.3.3 Store the Log Every time you access the log file, the data is automatically stored to file and the log is cleared. To see a list of log files and their creation dates, select Show All Files from the View menu. You will see a dialog like this: Figure 5-2 Log files list
Transmit Diversity Add-On System Assembly and Operation Manual Document No. 913004500 Rev. 0.0 5-4 Celletra Proprietary 5.3.4 View as HTML To view the log file in HTML format, click Show HTML Version in the View menu. The resulting view may look something like this. Figure 5-3 Log file as HTML
Document No. 913004500 Rev. 0.0 Appendix 1 Celletra Proprietary APPENDIX A. DEFAULT SYSTEM LIMITS Defining System Failure Conditions Failure conditions are predefined by the manufacturer, as shown in the following table: Table A-2: Failure conditions Failure Description Recommended Value ABT voltage Minor DLDU voltage Minor ICU voltage Minor ABT current Minor DLDU current Minor ICU current Minor ICU Controller Minor Fan current N/A
Document No. 913004500 Rev. 0.0 Appendix 2 Celletra Proprietary APPENDIX B. CONNECTOR PINS The following table shows the connector pins for RS-232 cable. Table B-1: RS-232 and modem activation communication connector Amphenol C16-1 Connector (TDA side) Communication Cable (PC Side) Pin # Function Pin # Function 1 Bypass return NA NA 2 Modem Rx NA NA 3 CTRLR Rx 3 Pc Tx 4 CTRLR Tx 2 PC Rx 5 NA NA NA 6 Modem Tx NA - 7 GND 5 GND 1 to 7 Jumper NA NA The following figure shows the DC power jumper cable layout. A1A3 A2BLACKWHITEWIREWIREAAPIN FORVIEW-AA3 A2 A1 BLACKPIN FORWHITEWHITE 0VDCBLACK -48VDC Figure B-1 DC power jumper cable layout
Transmit Diversity Add-On System Assembly and Operation Manual Document No. 913004500 Rev. 0.0 Appendix-3 Celletra Proprietary APPENDIX C. RECORDS TDA System Installation Record After setting the TDA system, it is recommended to write down the site information for remote control records. TDA System # ........... ................... TDA System Name.... ................... Measured RF Cable Loss Table C-1: RF cables sweep test Cable # Cable Description Insertion Loss Return Loss Remarks From To W2 FRM Tx1/Rx1 Coupler W3 Coupler Attenuator W5 TDA Unit Cable Panel DIV LG1 Coupler Cable Panel Main Legacy Cable LG2 Cable Panel Main Tx/Rx Main Antenna Legacy Cable LG3 Cable Panel DIV Tx DIV Antenna Legacy Cable Main Path Power Before TDA System Pout max. (Base-line) .. ................... dBm Main Path Power With TDA System Main Pout max. with TDA .............. dBm TDA Unit Downlink Gain Setting Set Gain .................... ................... dB Updated by: ______________ Signature: ______________ Date: _____________

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