This document discusses parameter planning for Nokia Siemens Networks' BSS (Base Station System) equipment. It outlines the objectives of understanding the BSS managed object hierarchy, looking up parameter values and defaults, and identifying changes in parameters between software releases. It provides an example of a parameter from the dictionary and describes general, feature, and BSC control parameter files.

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BSSPAR1: Chapter 1 Introduction to Parameter Planning

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At the end of the module, the participant will be able to:
Sketch a BSS Managed Object Hierarchy
Look up the parameters at each level, in the parameter dictionary
Identify parameter value ranges and default settings
Find the changes to objects and parameters, that occur with each BSS software release
Module Objectives

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Managed Object Hierarchy
PLMN
BSC
LAPD
RA
MALD
MAL
BAL
DAP
BCF
PCM
PCU
BTS2
BTS1
ADCW
TRX
HOC
ADCE
POC
RTSL
SEG

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Example from Parameter Dictionary
Parameter name
Rxlev Access Min
Abbreviated name
rxLevAccessMin
Managed object
BTS
Multiplicity
1
Description
With this parameter you define the minimum power level an MS has to receive before it is allowed to access the cell.
Additional information
-
Range and step
-110...-47 dBm, step 1 dBm
Formula for getting internal value
internal_value = (gui_value + 110)
Default value
-105 dBm
Default value notes
-
Required on Creation
optional
Related functions
-
Modification
Online
Modified
-
Related parameters
-
Parameter relationships
-
Related options
-
Related features
-
Interfaces
•RACApp <-> RAC
•Planner <-> RAC
•RAC <-> Optimizer
•RAC <-> BSC
References
•3GPP Reference: 44.018, 45.008
MML Commands
EQG, EQO
MML Abbreviated Name
RXP
MML Full Name
rxlev access min
Segment Level Parameter
true
File Based Provisioning supported
true

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PRFILE, FIFILE and PAFILE parameters
•PRFILE (General Parameter File)
–Standard features
–Optional features
–Interrogate with MML command ZWOS
•FIFILE (Feature Information Control File)
–Stores optional parameters from the PRFILE
–Interrogate with MML command ZWOI
•PAFILE (BSC Control Parameter File)
–GSM-BSC parameters
–GSM Timers
–Interrogate with MML command ZEGO

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Features & Activation status
ZWOS command
ZWOI command

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GSM-BSC Parameters & Timers
ZEGO command

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Viewing parameters Using NetAct CM Editor

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Viewing parameters with MML Commands in BSC
ZEQO Output

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Exporting parameters Using NetAct CM Ops Manager

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New objects & parameters

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Call Phases (MOC case)
MS
BTS
BSC
AUTHENTICATION (SDCCH)
Phase 2 : MM signalling
CIPHERING MODE (SDCCH)
Phase 8 : Ciphering
TMSI REALLOCATION (SDCCH)
SETUP (SDCCH)
Phase 2 : MM signalling
CH. REQUEST (RACH)
IMMEDIATE ASSIGN(AGCH)
SERVICE REQUEST (SDCCH)
Phase 1 : Paging, initial MS
CH.RELEASE
Phase 4 : Release
ALERTING & CONNECT (FACCH)
Phase 2 : MM signalling
CONN. ACK. and MEASUREMENT
Phase 15 : Conversation
DISCONNECT & RELEASE (FACCH)
Phase 4 : Release
ASSIGNMENT (SDCCH-FACCH)
Phase 3 : Basic assignment
• Signalling procedures are used during the 15 phases in a basic call
• Certain parameters influence the setting up and the release of a call