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Navini Networks, Inc. Ripwave Base Station I&C Guide

Export BTS Data

After successfully calibrating a BTS and before performing the calibration verification

procedure, export the BTS configuration data to a text file. This is done by highlighting the

specific BTS in the Configuration and Alarms Manager (CAM) window, and on the Main Menu

select File > Export BTS Data. This text file will be used as input by the “IC Closeout Tool”

(Part Number 40-00217-00), shown in Appendix V.

Perform the Calibration Verification Procedure

Base Station Calibration Verification is a set of procedures to verify that the equipment has

passed calibration and that the RF portion of the equipment is operating within acceptable

parameters. The results of the tests should be documented in the Base Station Calibration

Verification Form, which is part of the “IC Closeout Tool” (Part Number 40-00217-00).

This procedure is described in Appendix Q.

Single Antenna Element Test

The object of the RFS Single Antenna Element Test Procedure is to verify the functionality of

each antenna element in the Ripwave Radio Frequency Subsystem (RFS). The 8 antenna

elements work together to create the beam forming effect that results from using a Smart

Antenna - Phased Array technology. Using 8 combined antenna elements concentrates the beam

of radiation, adding up to 9 dB of gain, both in the downlink and in the uplink

In the downlink there is an additional 9 dB of gain because there are 8 antenna elements

transmitting simultaneously in the RFS. This gain is not available in the uplink because there is

only one antenna element transmitting at any time in the Modem.

In a Non-TTA BTS, each antenna element has an associated Low Noise Amplifier (LNA) in the

RFS and a Power Amplifier (PA) in the RF Shelf of the BTS. In a TTA BTS, each antenna

element has an associated PA in the RFS and an RF Converter (RFC) in the BTS shelf. In order

to verify that each individual antenna element is working properly, we have to power off the

LNA/PA/RFCs for all the antenna elements, then turn them on individually one at a time and

verify that a test Modem can communicate with the base station through that single antenna

element (Appendix R

Install & Test Customer EMS Operations

If you have been using a Test EMS up to this point, you will now need to install and test the

customer’s EMS server. This involves installing the EMS Server and Client on a computer that is

connected through the system backhaul. When connecting the Ripwave equipment to the

Summary of content (22 pages)

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Navini Networks, Inc. Ripwave Base Station I&C Guide Export BTS Data After successfully calibrating a BTS and before performing the calibration verification procedure, export the BTS configuration data to a text file. This is done by highlighting the specific BTS in the Configuration and Alarms Manager (CAM) window, and on the Main Menu select File > Export BTS Data. This text file will be used as input by the “IC Closeout Tool” (Part Number 40-00217-00), shown in Appendix V.
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Navini Networks, Inc. Ripwave Base Station I&C Guide backhaul, refer to the Regulatory Information in Chapter 1, Page 8 – specifically regarding cabling to Ethernet or T1/E1 backhauls. Ethernet connections require a UL497B listed protection device to be installed between the BTS and the first network device. T1/E1 connections must be routed from the BTS through a UL497 listed protection device at the demarcation point.
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Navini Networks, Inc. Ripwave Base Station I&C Guide Verify System Performance Location (FTP) Test Location Tests are performed to see if the system file transfer functions are working as predicted between Modem and Base Station. First you perform three uploads and three downloads from one locations in line-of-sight (LOS) with the Base Station at a distance of about 2 km.
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Navini Networks, Inc. Ripwave Base Station I&C Guide Back Up EMS Database After all system installation and commissioning activities are complete, perform a backup of the EMS database. The procedure can be found in the EMS Administration Guide. Place the backup files on a different system server where they will be periodically backed up on a tape drive.
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Navini Networks, Inc. Ripwave Base Station I&C Guide NOTE 1.CABLE BUNDLE CONSIST OF 9 RF CABLES AND 1 POWER/DATA CABLE 2.RF CABLE TYPE TO BE DETERMINED BASED ON RUN LENGTH AND DB LOSS/FT 3.CABLE HANGERS TO BE SPECIFIED/RECOMMENDED BY TOWER CREW 4.ANTENNA BRACKET TO BE SUPPLIED BY CUSTOMER AS RECOMMENDED BY TOWER CREW 5.BTS REQUIRES 24VDC @ 60A. 6.PSX-ME SURGE PROTECTORS TO BE INSTALLED IN-LINE BETWEEN RF CABLE AND ANTENNA 7.PSX SURGE PROTECTOR TO BE MOUNTED ON GROUND BAR CLOSE TO BTS CABINET/CHASSIS 8.
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Navini Networks, Inc. Ripwave Base Station I&C Guide Appendix H: Antenna Power & Cable Selection Non-TTA Systems Overview There are 3 types of cables that are part of a non-TTA Base Station installation: antenna (RF) cables, calibration (CAL) cable, and data/power cable (not used with the TTA systems).
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Navini Networks, Inc. Ripwave Base Station I&C Guide An excel program (P/N 40-00219-00) is provided to perform all the necessary calculations automatically Data Input The Cable selection procedure requires the following data to be entered in the green fields of the spreadsheet: Figure H1 – Data Input Operating Frequency Band – Select one of the following: 2.3 GHz (6 sub-carriers) 2.3 GHz (10 sub-carriers) 2.4 GHz (combo chassis) 2.5 GHz 2.6 GHz (split chassis) 2.
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Navini Networks, Inc. Ripwave Base Station I&C Guide Does the system include a Standard Filter in the back of the BTS? With or Without Standard Filter Must the system comply with regulatory Requirements regarding the Maximum PA Output? Yes or No Length of the Main cable (in feet or meters) Vertical Drop from the Antenna or Buss Bar (in feet or meters) – This represents how much of length of each Main cable segment will add its weight on the tower.
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Navini Networks, Inc. Ripwave Base Station I&C Guide level of received power required for successful decoding of the received signal, and should be 11 dB above the noise floor. The mechanism of uplink power control will ensure that the signal transmitted by each modem arrives at the RFS at the desired level.
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Navini Networks, Inc. Ripwave Base Station I&C Guide TABLE H3 - Jumper Cable Parameters Rationale Behind the Formulas Please refer to Figures H2, H3 and H4 during the following discussion.
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Navini Networks, Inc. Ripwave Base Station I&C Guide Figure H3 – Tx Path Calibration Cal Board Loss Tx Power at the Antenna RF Cal Cable Loss RFS Loss RF Cable Loss RF BTS Loss (Std Filter or Bypass Cable) RF RF PA PA PA PA PA PA PA Output Power PA PA IF Back Plane Loss SYN Card Input Power RF BB SYN IF Dig. CHP MDM Tx Power at the Ant = PA Output Power – BTS Loss – RF Cable Loss – RFS Loss SYN Input Power = Tx Power at the Ant.
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Navini Networks, Inc. Ripwave Base Station I&C Guide There are upper and lower limits to the TX Power and RX Sensitivity to which a BTS can be set. One of the two conditions that determine the Maximum amount of power that can be delivered at the antenna elements (Max TX Power1) is how much power can be output by the each one of the PAs.
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Navini Networks, Inc. Min Tx Power= Ripwave Base Station I&C Guide Min SYN Card Input + Max Cal Board Loss + CAL Cable Loss + Back Plane Loss [Formula 4] Let’s now determine the maximum and minimum RX Sensitivity at which the BTS can be calibrated. During the RX Paths calibration, the SYN card generates an RF signal that must travel to (and suffer losses at) the BTS Back Plane, the CAL Cable, and the Calibration Board before it arrives at the base of the antenna elements.
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Navini Networks, Inc. Ripwave Base Station I&C Guide Calculate the weight of the section of main Cable hanging from the tower for each type Main cable.
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Navini Networks, Inc. Ripwave Base Station I&C Guide whether your system has a Standard Filter in the back of the BTS (write it down at the bottom of the table and call it D). • Choose between the value in column E1 and the value in column E2 based on whether your system has an Active or Passive RFS (write it down at the bottom of the table and call it E) 4.
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Navini Networks, Inc. Ripwave Base Station I&C Guide Use Formula 1 to calculate Max Tx Power1 (what the PAs could deliver) for each type of Main Cable. Use values “A”, “D” and “E” from Table 1 respectively for Max PA Output, BTS Loss, and RFS Loss; and the values from Formula 14 for RF Cable Loss. Use Formula 2 to calculate Max Tx Power2 (maximum value at which the Tx Paths of the BTS can be calibrated) for each type of Main Cable.
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Navini Networks, Inc. Ripwave Base Station I&C Guide Notice that, in this example, one cable combination is Not Available (there is no Loss data for that main Cable at the selected Frequency Band), one cable combination exceeds the maximum weight allowed, two Main Cables are not flexible enough to be bent as required and four cable combinations were eliminated because they cannot deliver the desired level of TX Power at the antenna elements.
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Navini Networks, Inc. Ripwave Base Station I&C Guide Cable Selection for TTA Systems Cable selection for a TTA system is extremely simple. Just follow the steps listed below.
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Navini Networks, Inc. Ripwave Base Station I&C Guide TABLE H5 – Cable Specs Bundled 2.01 GHz 2.3 GHz Cable Loss dB/ft (dB/m) 2.4 GHz 2.5–2.7 GHz 3.4–3.7 GHz Individual RG6 RG11 LMR-240 LMR-400 LMR-600 0.100 (0,328) 0.109 (0,358) 0.111 (0,364) 0.116 (0,380) 0.138 (0.453) 0.064 (0,210) 0.071 (0,233) 0.073 (0,239) 0.075 (0,246) 0.088 (0,289) 0.116 (0,379) 0.123 (0,405) 0.126 (0,413) 0.132 (0,431) 0.155 (0,509) 0.060 (0,197) 0.070 (0,230) 0.068 (0,223) 0.070 (0,230) 0.083 (0,272) 0.039 (0,128) 0.