User Manual

Optimization/Calibration – Introduction

July 1999

3-1

SC 4812ET BTS Optimization/ATP – CDMA LMF

PRELIMINARY 2

Introduction

This section describes procedures for downloading system operating

software, set up of the supported test equipment, CSM reference

verification/optimization, and transmit/receive path verification.

Cell–site Types

Sites are configured as Omni/Omni or Sector/Sector (TX/RX). Each type

has unique characteristics and must be optimized accordingly.

For more information on the differences in site types,

please refer to the applicable BTS/Modem Frame Hardware

Installation and Functional Hardware Description

manuals.

NOTE

Cell–site Data File (CDF)

The CDF includes the following information:

 Download instructions and protocol

 Site specific equipage information

 C–CCP shelf allocation plan

– BBX2 equipage (based on cell–site type) including redundancy

– CSM equipage including redundancy

– Multi Channel Card 24 (MCC24 or MCC8E) channel element

allocation plan. This plan indicates how the C–CCP shelf is

configured, and how the paging, synchronization, traffic, and access

channel elements (and associated gain values) are assigned among

the (up to 12) MCC24s or MCC8Es in the shelf.

 CSM equipage including redundancy

 Effective Rated Power (ERP) table for all TX channels to antennas

respectively. Motorola System Engineering specifies the ERP of a

transmit antenna based on site geography, antenna placement, and

government regulations. Working from this ERP requirement, the

antenna gain, (dependent on the units of measurement specified) and

antenna feed line loss can be combined to determine the required

power at the top of the BTS frame. The corresponding BBX2 output

level required to achieve that power level on any channel/sector can

also be determined.

Refer to the CDMA Operator’s Guide, 68P64114A21, for

additional information on the layout of the LMF directory

structure (including CDF file locations and formats).

NOTE