NOKIA GSM REPORTS

42-Displays all base stations sorted out by BSC name, BCF id and BTS id. (Which are existing)

43- All cells with LAC & CI(cell ID)

50-BTS having GPRS enabled Trxs.

54-segment configuration

60-adjacency discrepancy

61-missing adjacencies

62-frequecy check of adjacent cells

68-shows usage of BTS parameters

70-BTS with Max adjacencies(starts from 10 adjacancies)

71-cells with Min adjacencies ( less than10)

74-adjacancies

76-Adjacent cells with same NCC,BCC and frequency.

111- BCCH

130-Sd congestion

135-TCH congestion

150-HO failure ratio

153-adjacancies having HO failure

162-TCH drop call

163-cells having high TCH drop ratio

196-UL & DL quality /Interference

204-N/w benchmark statistics

208-Link balance per Trx. this reports counts power loss balance b/w UL and DL.

232-overshooting /TA

250-cell by call ratio

216-BTS doctor report

222-call distribution per LA

280-dynamic Abis.

NSN Cell Report

CELL DOCTOR REPORTS(KPI - KEY PERFORMANCE INDICATORS)

023 - BCCH MISSING - FOR HOW MUCH SECS SITE WAS DOWN

051 - GPRS PARAMETER REPORTS - SHOWS GPRS PARAMETER FOR EVERY SECTOR - BASIC PARAMETER - ALSO SHOWS AG BLOCK COUNT

         BCF NAME, ID SEGMENT NAME,ID BTS NAME,ID LAC, RAC, CI

060 - NEIGHBOUR DISCREPANCIES - IF NEIGHBOUR DEFINITION IS WRONGLY CREATED - MODIFIED

061 - SHOWS ONE WAY NEIGHBOUR DEFINITION, IF ANY,  SO IF NEIGHBOUR NEEDED THEN CREATE OTHERWISE DELETE

067 - HANDOVER SYNCHRONIZATION - SYNC PARAMETER - Y OR N SHOULD BE Y IN SAME SITE AND WITH OTHER SITE SHOULD BE N

074 - NEIGHBOUR DATA

076 - CO-BSIC-BCCH NEIGHBOUR IF ANY

073 - UNDEFINED NEIGHBOUR ONLY  DATA AVAILABLE IS SIGNAL STRENGTH, BCCH, BSIC

111 - FREQUENCY PLAN REPORT  WHICH FREQ IS THERE FOR EACH TRX AND BASIC PARA LIKE BSC,BTS NAME, BTS ID,LAC,RAC,CI,BCC,NCC, HOPPING PARA

130 - SDCCH CONGESTION REPORT  HOURLY BASIS

132 -SMS FAILURE REPORT

135 - TCH CONGESTION REPROT HOURLY BASIS

150 - HANDOVER FAILURE RATIO, CELL LEVEL

153 - HANDOVER FAILURE ATTEMPT RATIO, AT NEIGHBOUR LEVEL

154 - HANDOVER ATTEMPT CAUSES WHY HANDOVER ATT WAS THERE.

157 - HANDOVER PER CALL RATIO  HO/CALLS

160 - NETWORK LEVEL TCH CALL DROP RATIO

163 - TCH DROP CALL RATE AT CELL LEVEL - IF CALL DROP AT RF, ABIS, AIF, TR , LAPD,BTS, BCSU,USER

166 - SDCCH DROP CALL RATE AT CELL LEVEL - IF DROP RATE AT RF, ABIS, AIF, LAPD, BTS, BCSU

182 - TCH SDCCH CS PEAK TRAFFIC - MAX ERL, BLOCKING - AVE ERL, BLOCKING - TCH & SDCCH BOTH AT CELL

186 - CELL HAVING MAX. PAGING TRAFFIC

190 - UL INTERFERENCE REPORT AT CELL

196 - TRX QUALITY, INTERFERENCE AT TRX LEVEL FOR PARTICULAR CELL NOT MEETING KPI AS MENTIONED

204 - NETWORK BENCHMARK STATISTICS REPORT

208 - LINK BALANCE PER TRX

229 - GPRS KPI REPORT

232 –DISTANCE CALL STUDY REPORT – GIVES FROM HOW MUCH DISTANCE CALLS ARE INITIATED – IN    PERCENTAGE AND SAMPLES VALUE

216 –CELL ANALYSER – VERY HEAVY REPORT NEEDS MORE TIME – RUNS AT SECTOR LEVEL ONLY GIVES ALL PARAMETER AND EVERY STATISTICS

236 – Half Rate TCH Traffic with available time slots and erlang generated.

MML Commands

ZEEI – SECTOR INFO WITH OPERATIONAL STATE AND HW TYPE ET PCM TRX STATE AND NO, OF CALLS RUNNING AT MOMENT

ZERO – TRX LEVEL PARAMETER

ZEQO – BTS LEVEL PARAMETER INCLUDING HOPPING, QUEUE, GPRS ETC.

ZEHO – HANDOVER CONTROL PARAMETERS

ZEUO – POWER CONTROL PARAMETER

ZEAP –NEIGHBOUR WITH BASIC INFO

ZEAO – NEIGHBOUR WITH ALL PARAMETERS

Reason for SDCCH DROP in GSM Network

·         Low Rx level DL& UL, Bad Qual (Interference ) DL & UL, and High TA

·         Drop on LAC boundary.

·         SW congestion

·         Due to TCH Congestion.

·         Hardware issue, Timeslot Faulty, High VSWR, Alarm or Antenna Faulty, mismatch combining.

·         Interference or error on E1.

·         Drop due to radio failure.

·          SD drop due to MS faulty.

·         SD drop due to mismatch Rxlev_access_min value & RACH busy threshold

·         SD drop due to mismatch BA2 list, due to drop occur during HO.

Cell Selection and Re-selection in GSM

Cell Selection Procedure

• First MS powers-on

• MS starts measuring received power level from all cells in range

• MS calculates average power level received from each cell:

• Stored in RXLEV(n) parameter

• MS calculates C1 parameter for each cell based on RXLEV(n)

• Mobile compares cells which give a positive value of C1 and ‘camps-on’ to the cell with the highest C1 value.

On switch-on, an MS periodically measures the received power level on each of the BCCH frequencies of all cells within range. From these periodic measurements the MS calculates the mean received level value from each cell, stored in the parameter RXLEV (n) where n=neighboring cell number.

Cell Re-selection – GSM Phase 1 Mobiles

For GSM Phase 1 mobiles, cell reselection is achieved by comparing current cell C1 with neighboring C1 cell measurements:

• Between cells within a Location Area:

C1 (new) > C1 (old)         (for more than 5 seconds)

• Between cells on a Location Area boundary:

C1 (new) > C1 (old) + OFFSET      (for more than 5 seconds)

Cell Re-selection – GSM Phase 2 Mobiles

• GSM Phase 2 introduced a separate cell re-selection parameter, C2

• Intended to:

• Prevent multiple handovers for fast-moving mobiles

• Ensure MS camps on to cell with greatest chance of successful communications

• The C2 calculated is:

C2 = C1 + OFFSET – (TEMPORARY_OFFSET x H(PENALTY_TIME –T)

Ericsson 2G OSS Command

Command	Description
RLDHP:CELL=ALL;	CELL DYNAMIC HR ALLOCATION DATA
DBTSP:TAB=AXEPARS;	DATABASE TABLE FILE PRINTOUT STATUS
PLLDP;	PROCESSOR LOAD DATA
RAEPP:ID=ALL;	BSC EXCHANGE PROPERTY DATA
RLCAP;	BSC CIPHERING ALGORITHM DATA
RLDCP;	BSC DIFFERENTIAL CHANNEL ALLOCATION DATA
RLLBP;	BSC LOCATING DATA
RLLSP;	BSC LOAD SHARING STATUS
RLOMP;	BSC BAND OPERATION MODE DATA
RLTYP;	BSC SYSTEM TYPE DATA
RLVAP;	CELL SEIZURE SUPERVISION OF LOGICAL CHANNELS ALARMED OBJECTS DATA
RRGBP;	RADIO TRANSMISSION GB INTERFACE CONFIGURATION DATA
RLHBP;	BSC LOCATING HIERARCHICAL CELL STRUCTURE BAND DATA
ALLIP;	ALARM LIST
SAAEP:SAE=ALL;	SIZE ALTERATION OF DATA FILES INFORMATION
SAACP:SAE=ALL;	SIZE ALTERATION OF DATA FILES CROSS-REFERENCE
RLCPP:CELL=ALL;	CELL CONFIGURATION POWER DATA
RLLOP:CELL=ALL;	CELL LOCATING DATA
RLLOP:CELL=ALL,EXT;	CELL LOCATING DATA FOR EXTERNAL CELLS DEFINED IN THE BSC
RLLHP:CELL=ALL;	CELL LOCATING HIERARCHICAL DATA
RLLLP:CELL=ALL;	SUBCELL LOAD DISTRIBUTION DATA
RLACP:CELL=ALL;	CELL ADAPTIVE LOGICAL CHANNEL CONFIGURATION
RLCHP:CELL=ALL;	CELL CONFIGURATION FREQUENCY HOPPING DATA
RLGAP:CELL=ALL;	CELL CHANNEL GROUP ALLOCATION DATA
RLCXP:CELL=ALL;	CELL CONFIGURATION DTX DOWNLINK DATA
RLDGP:CELL=ALL;	CELL CHANNEL GROUP DATA
RLDTP:CELL=ALL;	CELL TRAINING SEQUENCE CODE DATA
RLDMP:CELL=ALL;	CELL DYNAMIC FR/HR MODE ADAPTATION DATA
RLGRP:CELL=ALL;	CELL GENERAL PACKET RADIO SERVICE RESOURCES DATA
RLGSP:CELL=ALL;	CELL GENERAL PACKET RADIO SERVICE DATA
RLCLP:CELL=ALL;	CELL CHANNEL ALLOCATION DATA
RLHPP:CELL=ALL;	CONNECTION OF CELL TO CHANNEL ALLOCATION PROFILE DATA
RLIHP:CELL=ALL;	CELL LOCATING INTRACELL HANDOVER DATA
RLIMP:CELL=ALL;	CELL IDLE CHANNEL MEASUREMENT DATA
RLLCP:CELL=ALL;	CELL LOAD SHARING DATA
RLLDP:CELL=ALL;	CELL LOCATING DISCONNECT DATA
RLLFP:CELL=ALL;	CELL LOCATING FILTER DATA
RLLPP:CELL=ALL;	CELL LOCATING PENALTY DATA
RLLUP:CELL=ALL;	CELL LOCATING URGENCY DATA
RLOLP:CELL=ALL;	CELL LOCATING OVERLAID SUBCELL DATA
RLPBP:CELL=ALL;	HANDOVER POWER BOOST DATA
RLPRP:PP=ALL;	BSC DIFFERENTIAL CHANNEL ALLOCATION PRIORITY PROFILE RESOURCE TYPE DATA
RLSBP:CELL=ALL;	CELL SYSTEM INFORMATION BCCH DATA
RLSLP:CELL=ALL;	CELL SUPERVISION OF LOGICAL CHANNEL AVAILABILITY DATA
RLSMP:CELL=ALL;	CELL SYSTEM INFORMATION BCCH MESSAGE DISTRIBUTION
RLSSP:CELL=ALL;	CELL SYSTEM INFORMATION SACCH AND BCCH DATA
DTDIP:DIP=ALL;	DIGITAL PATH
DTQUP:DIP=ALL;	DIGITAL PATH QUALITY
DTSTP:DIP=ALL;	DIGITAL PATH STATE
NTCOP:SNT=ALL;	SWITCHING NETWORK TERMINAL CONNECTION DATA
NTSTP:SNT=ALL;	SWITCHING NETWORK TERMINAL STATE
EXEMP:RP=ALL,EM=ALL;	EM DATA
EXRPP:RP=ALL;	RP DATA
STDEP:DEV=RTGPHDV-0&&-700;	DEVICE STATE DETAILS
RXMOP:MOTY=RXOTRX;	RADIO X-CEIVER ADMINISTRATION MANAGED OBJECT DATA
RXMSP:MOTY=RXOTRX;	RADIO X-CEIVER ADMINISTRATION MANAGED OBJECT STATUS
RXMFP:MOTY=RXOTRX;	RADIO X-CEIVER ADMINISTRATION MANAGED OBJECT FAULT INFORMATION
RXAPP:MOTY=RXOTG;	RADIO X-CEIVER ADMINISTRATION ABIS PATH STATUS
RXELP:MOTY=RXOCON;	RADIO X-CEIVER ADMINISTRATION ERROR LOG DATA
RXTCP:MOTY=RXOTG;	RADIO X-CEIVER ADMINISTRATION TG TO CHANNEL GROUP CONNECTION DATA
RLMTP:ID=ALL,CELL=ALL;	CELL BROADCAST SHORT MESSAGE SERVICE MESSAGE DISTRIBUTION DATA
RLDMP:CELL=ALL;	CELL DYNAMIC FR/HR MODE ADAPTATION DATA
RLAPP:CELL=all;	AMR POWER CONTROL CELL DATA
RLMBP:ID=ALL;	CELL BROADCAST SHORT MESSAGE SERVICE MESSAGE DATA
RLLDC:CELL=CELLNAME,MAXTA=8;	For changing the TA value of the cell