Cigalecore Cs Pr Rg

8/11/2019 Cigalecore Cs Pr Rg

1/34

O S T I L L -

F o

t o l i a

CORE CS solution

Solution Presentation


2/34

Astellia confidential2

Agenda

1. Historic2. What is CORE CS ?3. Usage

4. Features5. Case Studies6. Conclusion


3/34


CORE (CS & PS) Astellia is also areference on CORE !

Core CS solution deployed for 19 operators since 2005:

Core PS solution deployed for 25 operators since 2004:

OMC NSS solution deployed for 8 operators since 2008

RT Interface in pilot with Orange & NII groups for CS/VASand end 2010 for PS

RT Alarming/Supervision pilot available on CORE CS


4/34


Which services to monitorwith Cigale CORE CS?

Othernetworks

MSC MSC SGSN

HLRVLR

EIR

VLR

E

A(IP)

IntelligentNetwork

SCP

IN

SMScenter

G

C

DF

Gd

Gf

PSTNGW

PSTN

B Gr

E

G

C

Inbound & Outbound Roamers- localisation- authentication

International SMS- traffic

National and International SMS- traffic

HO inter-MSC- mobility for all mobiles

Outbound Roamers (Voice&Data)- localisation- authentication

Localisation- Based on SMS reception for all

subscribers

IMEI control- for all mobiles

Call establishment- to all my subscribers

Authenticationfor all mobiles

Service analysis- Prepaid/Postpaid- Localisation services-

Troubleshoot- Multi-Interface

MAP-GbMAP-Iu

Troubleshoot- Multi-Interface

MAP-AMAP-Iu


5/34


Usage


6/34


Product target

Scenario 2

(FullCORE)

Scenario 1(Additionto RAN)

Statistics- Outbound/Inbound Roaming (location, SMS,) - ISUP links- Service usage

CAMEL, 2G/3G, prepaid/postpaid

Troubleshooting- Causes interpretation in MSC/SGSN- Multi-interface for combined investigation

(Core with A, Iu, Gb)

Improve dialog between ACCESS and COREinvestigation teams


7/34Astellia confidential7

Product target

MSC-S

SGSN

SMS-c

IN HLR HLR

BSC RNC BSC RNC

MGW MGW

HLR PSTN

STP ST

P

MSC-S

MSC-S

RAN

COREScenario 2

(FullCORE)




CORE CSScenario deployment

Scenario 1: Addition to RAN monitoring ( INVESTIGATION )- To help troubleshoot with CORE CS information

Option to RAN (GSM, Gb or Iu) monitoring

- Today in many cases, Core interfaces already monitored International MAP for Roaming solution (LOR)

IP link due to NGN Release 4

CigaleCORE CS

CigaleGSM

MSCBSC HLRD A

MSC-S

SGSN

SMS-c

IN HLR HLR

BSC

RNC

BSC

RNC

MGW

MGW

HLR PSTN

STP

S

TP

Std extensionto improve RAN

investigations

MSC-S

MSC-S

RAN



CORE CSScenario deployment

Scenario 2: Full CORE CS monitoring REPORTING andINVESTIGATION - For CORE teams- STP capture synchronized with GPS

MSC-S

SGSN

SMS

-c

IN HLR HLR

BSC

RNC

BSC

RNC

MGW

MGW

HLR PSTN

STP ST

P

Full CORE CSmonitoring

(CAP, ISUP, MAPINAP, Roaming)

MSC-S

MSC-S

CORE


10/34Astellia confidential

10

Features



11

Seamless troubleshooting

Drill down from KPI involved toProtocol Decoding issue

Alarming on abnormal behavior

Detailed indicators

CDRs

Flow chart

Protocol

decoding

Macro-indicators



12

Statistics

Outbound and Inbound roamers analysis- LU Repartition per Country/Operator- SMS usage- Detection and check

for SOR (Steering Of Roaming) solution

ISUP links usage - Calls #, duration, efficiency, Erlang- National and International destinations- Detailed CIC and TS activity analysis- Congestion detection- White communications ( looped PCM, CIC issues)- Procedure timing analysis

Services usage- Prepaid and Postpaid- 2G and 3G- Packet and Circuit subscribers- SMS



13

Troubleshooting

Protocol decoding- All messages are decoded up to TCAP

Flow Chart- Available between any Point Code (PC)

with MAP, CAP, INAP, ISUP and BICC protocols

Multi-Interface (Call Flow)- MAP A (GSM)- MAP Iu (UMTS)- MAP Gb (GPRS)- MAP-MAP, MAP-CAP, MAP-INAP, MAP-SMS- ISUP-MAP, ISUP-CAP, ISUP-INAP

- INAP-MAP-ISUP, CAP-MAP-ISUP- A ISUP- Iu ISUP- A-INAP- A-CAP- A-BICC



14

Inbound Roamersover time

Hourly statistics

New roamersper hour

LU efficiency


15/34


16/34


ISUP links efficiency(ASR, ABR, NER)

Setup efficiency (% of ACM/IAM) ASR : Answer Seizure Ratio (% of ANM/ACM)

ABR : Answer Bid Ratio (% of ANM/IAM) NER : Network Efficiency Ratio

Hourly statistics

All communicationsphases

efficiency


17/34


CAP efficiencyper service Key

List of different services (localization, prepaid)

Nb of attemptsper service

Service efficiency


18/34


Case studiesTroubleshoot


19/34


20/34


To better interpretatecauses (2/2)

Here are examples on message interpretation on MSC level

PLMN not allowed(PLMNNA)

Network Failure(NF)

MSCBSC HLRD A

Cigale CORE CSCigale GSM

PLMN not allowed

Roaming not allowed (barring)

Failure on HLR ressources

Failure on VLR ressources

Unexpected data

System failure


21/34


To better interpretatecauses (2/2)

Here are examples on message interpretation on MSC levelMSCBSC HLR

D A

Cigale CORE CSCigale GSM

Location Update Reject(impossible to conclude)

Unknown subscriber (thanks to MI Core)


22/34


Case studiesRoamers statistics


23/34


Ensure service continuityto Outbound roamers

Solution: Roaming analysis based onoutbound roamers statistics

- Identify biggest destination countries /operators

- Check service availability (subscribers'rights)

- Identify potential problems affectingoutbound roamers

Number of outbound roamers / country / operator

Outbound Roaming efficiency

Outbound

Location Update

success rate

Nb of Location Update

requests

Destination countries/ operators

Customer overviewMiddle east operator

2.5 million active subscribers35 BSCs

Benefits:- Increase roaming revenue- Verify international links performance- Assess / optimize roaming

agreements


24/34


Roaming agreementsfor Inbound & Outbound Roamers

LU efficiency per operator LU efficiency per group LU efficiency per country SMS MT internat al success rate

Check all Roamingagreements !!!


25/34


Seamless troubleshooting

Detailed indicatorsCDRs

Flow chartProtocoldecoding

Macro-indicators

Determine list of Roamersimpacted

Distribution onCause of rejection

For any issue detected:Roamers rejection, Call inefficiency, Service unavailability


26/34


Steering of Roamerssolution (SOR)

For Inbound and Outbound roamers

- Location Update efficiency per country- Confirmation of steering solution Ratios should be checked with roaming service 0% < LU success rate < 50% Nb of inbound roamers > 100

Investigation per HLR (based on GT - Global Title)- for an operator, if one HLR always reject all LU and another HLR always succeed, then

SOR may be implemented!

Detect SOR implemented by other operatorsCheck your own statistics of your SOR solution


27/34


Case studiesISUP links

f


28/34


Identify & analyzeCDRs & revenue discrepancy

CDR MSC CDR IN

IN interface

1 2

34

Situation before Astellia Services: Communication durations are different

between:- Calls recorded by MSC- Calls recorded in Intelligent Network platform

Impact: Potential loss of revenue

1

2

Astellia analysis & recommendations Check the consistency between:

- MSC CDRs (A interface)- IN CDRs (INAP interface)

Determine which equipment is responsible fordiscrepancies

3

4

Benefits after implementation Assure no loss of Revenue Improve resources efficiency

=

I


29/34


Increaseinternational revenue

Situation before Astelliasupport:

Up to 45% of call attemptfailures to some internationaldestinations

Difficulty to analyze & localizeprecisely failures

Impact: Negative customer perception Loss of revenue

ISUP analysis & recommendationsIdentify & analyze precisely revenue loss linked to:- Local network inefficiency- International platform lack of performance- Destination network

Benefits after implementation Better customer perception Increased revenue


30/34


Conclusion


31/34


Conclusion

Scenario 2

(FullCORE)


Statistics- Outbound/Inbound Roaming (location, SMS,) - ISUP links- Service usage

CAMEL, 2G/3G, prepaid/postpaid

Troubleshooting - Causes interpretation in MSC/SGSN- Multi-interface for combined investigation

(Core with A, Iu, Gb)

Improve dialog between ACCESS and COREinvestigation teams


32/34

O S T I L L -

F o

t o l i a

Thank you for your attention.

www.astellia.com


33/34


Protocols

MAP, CAP, INAP, SMS, ISUP and BICC are part of SS7 Protocol

ISUP

IntelligentNetwork

Appl. Part(INAP)

TransactionCapabilities

Application Part(TCAP)

Signaling Connection and Control Part (SCCP)

SIGTRAN(M2UA, M3UA)

4

3

2

1

BSSAP RANAP

CAMELApplication

Part(CAP)

MobileApplication

Part(MAP + SMS)

MessageTransfer Part(MTP)

BICC

MAP conform to GSM 3GPP 09.02 Phase 1 (v3.11.0), Phase 2 (v4.19.1) and Phase 3 (v3.15.0)

INAP CS-1 conform to CS 1 ITU-T Q1218, ETSI STS 300 374-1, GF001-9001

INAP CS-2 conform to CS-2 ITU-T Q1228 (09/1997)

CAMEL has been specified in 4 phases: Phase 1, 2, 3 and 4

ISUP conform to ITU-T Q.763

BICC conform to ITU-T Q.1901

S t


34/34

34

ISUP BICCSMSINAP CAPMAPCORE

Capture

CORE

Same captureSame probe

GPRS

PSTN

MSC SGSN

GSM UMTS

A Gb Iu-PsIu-Cs

EIR HLR

Standard Astellia Capture

SMS-C

IntelligentNetwork

Cigalecore Cs Pr Rg

Documents

Transcript of Cigalecore Cs Pr Rg