Astellia Roaming Solution

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    OSTILL-Fotolia

    Astellia Roaming Solution

    Increase Roaming revenues

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    Discussion agenda

    Challenge & importance of Roaming

    Presentation of Astellia Roaming solution

    Benefits

    Case studies

    Screen shots

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    Challenges & importanceof Roaming

    Importance of Roamers for mobile operators- Large part of revenue

    - Very high margin customers

    Operator objective is to provide the highest QoS to roamers

    to:- Maximise capture rate

    - Retain roamerson your network

    - Increase trafficand network usage

    - Improve brand imagethrough top roaming services

    - Ensure roaming availability abroadto your customers

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    Astellia value propositionfor Roaming

    Provides CORE information onInboundand OutboundRoamers- Location Update

    - SMS

    Provides detailed RAN information onInboundRoamers- Location Update

    - SMS

    - Traffic (voice & data)

    - Loss Of Roamers

    - Down to Cell level

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    Astellia value propositionfor Roaming

    Check Roaming Agreement

    Detect and measureSteering OfRoamers(SOR) solutions

    Investigate issues affecting Roamers

    - Analysis of bothRadioand Coreproblems

    Compliant with Global Roaming Quality(GRQ) parameters

    - based on passive probe

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    All-in-one solution

    DATA CAPTURE & PROCESSING

    PROBES

    KPIs

    CDRs

    CONSOLIDATION

    OMC COUNTERS

    DATA IMPORT

    REPORTS ALARMS TROUBLESHOOT

    & ANALYSIS

    AUTOMATIC

    DIAGNOSIS

    System

    configuration

    &

    supervision

    C

    ustomer-centric

    Servicefocused

    Networkaware

    Cells

    Roamers

    Per Handset type

    Network

    VIPs

    Packet Services

    http://www.mobilecomms-technology.com/projects/cingular/cingular1.html
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    Vision of roamers experience

    True visibility of end-user QoS- Each roamer is a drive-tester

    - Relevant KPIs

    Quality of Experience (QoE)

    - Outboundand Inboundroamers

    LU Repartition per Country/Operator

    SMS ratio failure

    Detection and measure of SOR(Steering Of Roaming)

    - For InboundRoamers

    Location Update, Traffic, Loss and Recoveries

    - Data service level analysis Web portal page download time per cell

    MMS/email success rates

    Individual throughputs

    Packet Service MonitoringHTTP/WAP

    MMS/email

    FTP

    Streaming

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    Intuitive KPIs visualization

    Web interface

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    Automated reporting

    Marketing &

    Management

    Optimization& engineering

    Operation

    & Maintenance

    Experts KPI = f (counters)

    Fully customizablereport design

    - Create new KPIs- Create new charts and tables

    - Create new reports templates

    Automaticreport delivery

    - PDF / excel / word reports

    - Delivery by email to differentteams

    - Daily, weekly, monthly

    Consolidated reportsto HQs

    Customer Care

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    Alerting

    Fully customized alarms- Based on any QoS / QoE KPIs

    - Tuned to each part of the network

    Alarms triggering

    - Based on static / dynamic thresholds

    - Sent via SNMP & email to the right people

    Alarms handling

    - Alarm history

    - Attached KPIs for alarm prioritization

    Number of impacted calls / level of severity

    - Direct hyperlink to start investigation Trendson alarms

    Time

    Dropped

    calls

    Max

    threshold

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    Troubleshooting

    Direct link to troubleshooting- Statistics to CDRs

    Protocol decoding- All messages are decoded up to TCAP

    - 1 click access to Decoding from AA toolbar

    End-to end visibility:

    - Access Core network

    Multi-Interface Call Flow- MAP A (GSM)

    - MAP Iu (UMTS)

    - MAP Gb (GPRS)

    - MAP with CAP, SMS, INAP, ISUP

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    International links visibility

    Monitoring ISUP international links provides you informationon:

    - Traffic repartition for Incoming/Outgoing international calls

    For your Outbound Roamersto national destination

    For your subscribersto International destination

    For Inbound Roamersto International destination

    - Call efficiency

    Originated

    Terminated

    - Call duration

    Minimum, average, maximum

    - Troubleshooting international links Statistics: ASR, ABR, NER

    Call description: CDRs

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    Conclusion

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    Benefits

    Evaluate Quality of Servicedelivered toInboundandOutboundRoamers- Down to cell level

    Mobility

    LOR: Loss Of Roamers

    Analyze roamers behavior- Voice traffic

    - SMS

    - Data services

    Improve business efficiencywith international operators- Assess & improve your roaming agreements

    - Detect Steering Of Roamers (SOR) solution

    - Measure international links usage

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    Strategic DataUsed by Several Departments

    Technical & Operations- Regular reporting:

    Roaming capture rate

    Roaming traffic

    - Detection and investigation ofRoaming problems:

    LOR

    Weak roaming points

    - Follow-up of radio optimisation

    - QoS follow-up for Roamers

    - Definition of optimisation

    priorities

    Marketing- Roaming hot spots for

    capture and traffic

    - Roamer profiling

    - Reporting

    - Roaming agreements

    Management- Top roaming operators

    - Automated reporting

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    Ensuring rapid feedback

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    ROI operators feedback

    Inbound Roaming contributes to revenue at an average rate of10% to 30%

    - 2% to 5%increase of Roaming revenue following the Astelliasolution deployment

    Avoid loss of Traffic- As there is no roamers complaints, Astellia solution is the only way

    to detect and solve unknown problems

    Reduce Drive Tests by 50%

    - Detect coverage issues and target drive test on specific cells

    2 to 6 months ROI

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    Increase Roaming revenues

    Inbound GSM roaming The roaming strategy

    - Catch and Retain roamers on your network Detect and analyze roaming capture cells Benchmark your capture with your competitors (new roamers / competitor coverage holes) Reduce areas where you loose roamers (Loss of roamers) Identify & analyze problems for your Inbound roamers

    - Increase inbound traffic and network usage Optimize top traffic networks/cells Ensure the traffic of your roamers

    Outbound roaming

    - Ensure roaming availability abroad to your customers Identify & analyze problems for your Outbound roamers Check outbound roamer traffic to your network

    Analyze issues

    - Troubleshoot Correlate Access and Core causes Measure quality of international ISUP links

    Steering of Roamer

    - Improve brand image through top roaming services

    Identify and Check Steering Of Roamers (SOR) implementation Profile Inbound and Outbound Roamers

    One Roaming Network Group strategy

    - Ensure roaming revenues inside the group One roaming network

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    Case Studies

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    Reporting:Profile Inbound

    and OutboundRoamers

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    Profile Inboundand OutboundRoamers

    LU success rate SMS MO/MT international success rate

    Per operator group

    Per country

    Back

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    Case study 2Identify & analyze problemsaffecting outboundroamers

    A l bl ff ti

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    Analyze problems affectingoutboundroamers (1/3)

    Investigation on International MAP- Below is thedistribution of failed causesfor your subscribers

    when performing Location Update abroad

    Roaming not allowed:

    problem on subscriber rights

    PLMN not allowed:

    No rights on a specific PLMN

    Other PLMN PSTN Your network

    GatewayMSC / VLR MSC / VLR

    HLR

    AuC

    Your

    subscribers

    Update location

    A l bl ff ti

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    Analyze problems affectingoutboundroamers (2/3)

    Roaming not allowed:Investigation on International MAP- Identify subscribers not able to roam (Roaming not allowed)

    Contact these subscribers to offer them roaming service

    A l bl ff ti

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    Analyze problems affectingoutboundroamers (3/3)

    PLMN not allowed :Investigation on International MAP- Determine which PLMN are concerned

    - Detect operators who always reject LU for Outbound roamers

    and then, compare your Roaming Agreement List withreality given by Cigale CORE CS

    Back

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    Case study 3Identify & analyze problemsaffecting inboundroamers

    Id tif & l bl

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    Identify & analyze problemsaffecting inboundroamers (1/3)

    Investigation on International MAP Below is thedistribution of failed causesfor the Roamers

    when performing Location Update on your Network

    System failure Network Resource in HLR:

    Foreign HLR not able to answer

    to VLR of your Network

    because of lack of resource

    Roamna_plmnRoamNotAll:

    No subscription to roam on your Network

    Other PLMN PSTN Your network

    GatewayMSC / VLRMSC / VLR

    HLR

    AuC

    Inbound

    roamer

    Update location

    Id tif & l bl

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    Identify & analyze problemsaffecting inboundroamers (2/3)

    System failure Network Resource in HLRInvestigation on InternationalMAP

    Determine which subscribers are concerned

    - 98.3 % are Telecom Italia subsc. in the current case: IMSI numberrange 22201

    Contact Foreign Operator to inform and correct issue on HLR

    Id tif & l bl

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    Identify & analyze problemsaffecting inboundroamers (3/3)

    No subscription to roam on your network :Investigation on InternationalMAP

    Determine which subscribers are concerned

    In those 6335 cases most impacted IMSIs start with 31026

    Contact Operator to sign a Roaming Agreementand generate extra revenue

    Back

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    Case study 4Steering of Roamers (SOR)

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    Steering of Roamers (SOR)

    For Inboundand Outboundroamers- Location Update efficiency per operator

    - Location Update efficiency per HLR (based on GT - Global Title)

    - Example

    For an operator, if one HLR always rejects all LU and another HLRalways accepts them, then a SOR is implemented

    Detect SOR implemented by other operators

    Get statistics to check / measure your own SOR solution efficiency

    Back

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    Case study 5One Network

    shared by an operator Group

    Roaming Group Policy

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    Roaming Group Policy One Roaming Network

    For Inboundand Outboundroamers in the Group

    Check Locationefficiency

    - Must be near 100% efficiency Analyze Traffic

    - How do your roaming partners use Voice?

    Originated Terminated

    Duration

    - SMS usage?

    - Do they call home?

    - Data usage?

    - Usage of Group services?

    Detect unusualbehaviorwith a partner

    - No traffic, SMS failure, LU inefficiency,

    Back

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    Case study 6Troubleshoot & push problem analysis

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    Better investigate on causes

    Here are examples of message interpretation at MSC level

    PLMN not allowed(PLMNNA)

    Network Failure(NF)

    MSCBSC HLRDA

    Cigale CORE CSCigale GSM

    roamna_plmnRoamNoAll

    roamna_RoamNoBarring

    sysfail_netwkResHLR

    Unexdata

    sysfail_netwkResVLR

    Sysfail

    Case study

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    Case studyTo better investigate on causes

    Here are examples of message interpretation at MSC levelMSCBSC HLR

    DA

    Cigale CORE CSCigale GSM

    Back

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    InboundRoamingPrinciple and objectives

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    Roaming categories

    Main categories of roamers that Astellia considers*Collected: Roamers coming directly from a foreign network

    *Retrieved: Roamers coming from a competitive network

    *Transit: Roamers moving within your network

    *Back: your subscribers coming back from another network

    Useful to analyze the behavior of the roamers and understand how yournetwork catches and keeps the roamers.

    How to increase revenues?

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    TopCapture cells

    TopTraffic cells

    Loss of roamers cells

    Back

    refresh

    How to increase revenues?categories and principles

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    Case Study 7Improve Radio Access

    for your InboundRoamers

    Identify & analyze the main

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    Below is thedistribution of the main roaming networksperforming Location Update on the visited Network

    Roaming networks

    Number of

    Location UpdateAttach efficiency

    By Imsi, Top 20 New (Request) from Telia

    0

    10000

    20000

    30000

    40000

    50000

    60000

    70000

    DEU

    262-01,T-Mo

    bileD

    1

    SW

    E240-01,TeliaM

    obile

    DNK238-01,Tdc

    -mobil

    DEU262-02,Vo

    dafoneD2

    SWE

    240-07

    ,Tele

    2Com

    viq

    DNK238-02,Sonofon

    DEU262-0

    3,E-Plus

    DNK238-30,Oran

    ge

    SWE240-08,VodafoneSE

    NOR242-0

    2,Ne

    tcom

    NOR242-0

    1,Telen

    or

    DEU262-07,

    O2DE

    POL

    260-03,OrangePL

    SWE240-02,H3G

    SE

    Network23807

    POL260-01,PlusG

    SM

    FIN244-91

    ,Sonera

    GBR234-10

    ,O2UK

    PHL

    515-03,SmartGold

    NLD

    204-08,KPN

    Mobile

    0

    0,2

    0,4

    0,6

    0,8

    1

    Collected(Req) Retr ieved(Req) New/(Collected+Retr ieved) New(Req)

    Identify & analyze the main

    inboundroaming networks

    Determine your capture

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    Determine your captureefficiency

    Most of the roamers are classified as collected, Means that the coverage at

    borders and airports must be good. This operator outperforms competitors

    networks

    Compare your Roaming capture performance with your competitors

    Top 20 capture cells

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    Top 20 capture cells

    Determine top cells where you capture roamers

    d f

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    Identify LU reject causes

    Location Area Not AllowedThis cause is sent to the MS if it requests location updating in a location area where the

    MS, by subscription, is not allowed to operate

    PLMN Not Allowed CauseMain reason for PLMN Not Allowed. Cause normally used for competitors.

    => Should not be used for rejecting roamers.

    Network Failure CauseMain reason for Network failure => This cause is mainly sent when we are in face to an

    issue of transmission.

    Unknown In HLR CauseDeactivated IMSIs (for # reasons out of date, stolen). People try to use them by forcing. If it

    observed for a few months =>problem with routing MAP messages.

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    LU efficiency

    Determine LU reject causes per operators

    Analyse the main capture areas

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    Optimization

    - Correlation with the A interface analysis Ensure the roamers can attach on GSM network and make a call (CSSR

    analysis)

    Ensure the radio coverage is good in this area (radio call drop rate)

    - Verification of the

    neighboring cells

    (airports, borders)

    Analyse the main capture areasInboundroamers

    Back

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    Top traffic networksTop traffic cells

    for your InboundRoamers

    Traffic Main roaming networks

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    Distribution of the roaming networks in term ofvoice traffic(minutes) or SMS

    Traffic Main roaming networksInboundroamers (1/2)

    Originating

    Calls

    Terminating

    Calls

    Traffic Main roaming cells

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    Distribution of the most important cellsin term of calls(number or duration)

    Traffic Main roaming cellsInboundroamers (2/2)

    Back

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    InboundRoamingEnsure the roaming traffic

    Traffic on roaming networks

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    Distribution of the roaming networks in term ofvoice traffic(minutes) or SMS

    Traffic on roaming networksInboundroamers (1/2)

    Originating

    Calls

    Terminating

    Calls

    Traffic Main roaming cells

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    Distribution of the most important cellsin term of calls(number orduration)

    Traffic Main roaming cellsInboundroamers (2/2)

    Back

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    Benchmark your roamers captureWith your competitors

    for your InboundRoamers

    Competitors failure

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    Competitors subscribers try to register in those cells (coverage issues). Roamers on thecompetitors network will encounter the same problem.

    Operator should take actions to retrieve or even capture roamers on

    those areas (Ensure the radio drop rate is low in these cells and the

    neighbouring ones)

    Competitor s failurecoverage holes

    Back

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    Customer case studyLossof your InboundRoamers

    Reduce areas where you loose Roamers

    Retainability Loss of Roamers

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    Loss of roamers analysis per cell

    - Detection of the roamers losses through the study of theinternational MAP links

    LOR detection

    Retainability Loss of RoamersInboundroamers

    Improve roaming retainability

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    Based on operators ownsubscribers.

    Detection of areas withweak radiocoverageand potentialloss ofsubscribers.

    Weakness is detected mainly indense urban areas.

    Improve roaming retainabilityUsing standard detection method

    Top 20%

    Top 20% to 40%

    Weak radiopoints

    / severity level

    Improve roaming retainability

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    Based onroamers statisticsexclusively.

    Identification of areas withpotential subscribers retentionweaknesses.

    Weakness is detected in touristicand coastal areas.

    Improve roaming retainabilityUsing Loss Of Roamers information

    Top 20%

    Top 20% to 40%

    Weak roamingpoints

    / severity level

    Improve roaming retainability

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    Bcch interference on a hotel indoor site- Hotel (63453, Indoor) Bcch 10, TRXs 14,32,56- N_MR66_Hotel (60413, Macro) Bcch 39, TRXs 10,30,34,41,47,54

    Improve roaming retainabilityExample of cell analysis

    Improve roaming retainability

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    Number of New roamers + 17%,

    from ~26500 to ~31150

    Roaming traffic + 51%,

    from 684 to 1033 Hours

    Roaming Loss value on Top LOR cells - 44%,

    from ~300 (for ~26500 New) to ~200 (for ~31150 New)

    Improve roaming retainabilitySome figures on the first month MSCs (Mt-8vs. Mt)

    Back

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    Customer case studyImprove accessibility to Data services

    Analysing Data accessibility

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    Handset data registration

    Attachment

    OK

    Data establishment

    PDP Context

    OK

    Data Transfer

    Services

    OK

    SGSN GGSN IP

    Subscribers need to passthese 3 steps

    in order to access Wap, Http & MMS services

    Analysing Data accessibility

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    Annexes

    Overview of Data Sources

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    (1/2)

    MSC

    A

    IuCsIuPs

    Abis

    GGSN

    BSC

    RNC

    BTS

    BTS

    NODE

    B

    NODE

    B

    HLR

    Gr

    SGSN

    PCU

    C/D

    Gp

    Other

    PLMN

    Iu b

    Abis

    Iu b

    GbGn

    RNC

    Iu r

    GiISUP

    PSTN

    Int.

    GTW

    Int. MAP

    Monitored interfaces

    Cigale Process

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    Engine generates a MySQL database

    Supports E1, HSL, SIGTRAN interfaces

    Cigale Process

    Probe to record MAP and A links

    on PCM, Ethernet or HSL

    Cigale Engine

    MySQL

    Activity Analysis

    CDR

    generation

    Stats

    Trends & Aggregation

    Roamers Classification 1/2

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    Roamers Classification 1/2

    Monitored Network

    Foreign Network

    Competitors Network

    5

    5 Retrieved(New)

    6

    6 Transit

    1

    Foreign subscriber1

    2

    Arrival on Observed network24

    4 Loss of Radio Link

    3

    Collected(New)3

    Roamers Classification 2/2

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    COLLECTED RETRIEVED

    TRANSIT

    NEW

    ALL

    Results

    per IMSI

    BACKIOL

    Roamers Classification 2/2

    Back (IOl)

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    Back (IOl)

    Monitored Network

    2Loss of Radio Link24

    Back(iol)4

    Home Subscriber1

    1

    3

    Failed LUOld LAC = iol3

    LOR Option (1/2)

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    LOR Option (1/2)The MAP Cancel Location message

    Previous Network

    New Network

    ROAMER

    HLR

    VLR

    BSC

    VLR

    BSC

    MAP InterfaceA Interface

    1 Location Updating Rq

    LOR Option (2/2)

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    Activity

    Activity

    MAP_Cancel_Location

    LOSS

    RECOVER

    MSC

    TL

    TR

    Time

    T0

    ROAMER

    HLR

    LOR Option (2/2)The concept of loss and recovery

    LU by network of origin

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    LU by network of origin

    LU Split on reject cause

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    LU, Split on reject cause

    Loss of Roamers (1/2)

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    Loss of Roamers (1/2)

    Loss of Roamers (2/2)

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    Loss of Roamers (2/2)

    Traffic, celld t k f i i

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    and network of origin

    Detailed activity of a Roamer(1/2)

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    (1/2)

    Detailed activity of a Roamer (2/2)

  • 8/10/2019 Astellia Roaming Solution

    78/78

    y ( / )