TMN Workshop Antwerp, 27 May1998 Reference Framework for OSS Inter-connection inc. case studies on Number Portability, Charging and Accounting Dave Milham

TMN WorkshopAntwerp, 27 May1998

Reference Framework for OSS Inter-connection

inc. case studies on Number Portability,

Charging and Accounting

Dave Milham

BT

EURESCOM Project P811 Leader

TMN WorkshopAntwerp, 27 May 1998

Dave [email protected] +44 1473 64901

P811 Overview

• OSS Interconnection Framework

– Requirements

– The need for enhancement

– OSS Framework

• Case Studies

– Number Portability - Vertical study• Modelling Numbers and Number porting• Repair and Provisioning Processes• Information Models

– Charging and Accounting - Horizontal Study• Real time Charging• Linking network and OSS studies



CustomerCustomer PNO

OSS

PNO

OSSPNO

OSS

PNO

OSSXcoopXuser

PNO

OSS

PNO

OSS

Xsuper

• Deregulation impacts

• More organisations able to offer Telecom Services• Organisations can perform more than one role• Organisation roles no longer static

Drivers: Deregulated Telecom Market

• EURESCOM TMN Model (1994)

– Based upon concept of• Public Network Operator (PNO)

• Regulated Monopolies



OSS Framework Studies

• Goal

– Generic European Processes/components for OSS Interconnect

– Follow NMF Common Interconnection Gateway ‘Use cases’ and Information Model Approach

• Capture Regulatory Requirements

– European

– National

• Adapt integrate other work

– EURESCOM P609 Process Modelling

– TINA -C Reference Framework and Reference Points

– Roles and and relationships



OSS Interconnection Framework

Information SystemDevelopment

Object modelUse Case model

Use Case model Analysis model Design model Implementation model

Business Model

Development

BusinessProcessModel(s)

System Function

Business Process

User Function Scope of P811•Generic requirements•Generic OSS Processes•Generic ‘Use cases’•Generic Information Models

•using practical examples of OSS interconnect

•Validated by case studies



Applying the OSS Framework

Generic IndustryBusinessProcesses

Interconnection Business Model

Specific IndustryBusinessProcesses

Specific Inteconnection Business Model

Specific Information Systems development

OSS Interconnection Framework

Selection of specificBusiness model

ServiceSpecific Parameters

Implementation

Cross references

I.eNumber PortabilityCharging and Accounting

GenerateGeneric by useof examples

eg access requests,Leased lines ,etc


Number Portability (NP) Case Study



European Legislation on NP

• EC directive (for 1/1/2000)

– by 1/1/1998: identification of technical, operational or regulatory barriers

– by 1/6/1999: removal of all national regulatory barriers – From 1/1/2000,

• European customers will be able to demand that NP is immediately established between operators

• Currently NP is established on a bi-lateral agreement based on company readiness.

• Countries with NP deployed

– UK, Netherlands, Denmark, France,….

• Countries with plans to meet 2/1/2000 directive

– Italy,...…



ETSI Number Portability Study

• ETSI Number Portability Task Force

– Provides analysis of network solutions

– Provides a set of network implementation options

– Documented in Task Force Reports• Service Definition

• Network Options

• ETSI Service Provider Portability

– Geographic GNP (UK) and Local Number Portability LNP (USA)

– non-Geographic NGNP also 800 service (USA)

• ETSI Location Portability

– Retain number when moving within a region



Scope of P811 NP study

• Analysis of Regulatory Requirements

– Phase 1 National and European

• Development of OSS Scenarios and Solutions

– Customer to Service Provider interfaces

– Service Provider to Service Provider interfaces

– Common solutions for Service Provider portability

• Develop Repair and Provisioning processes

• Information models

• Evolution to centralised number administration and porting facility

• European NP Administration Centre (ENPAC) Proposal



Recipient

Other SPs

Subscriber

Donor

Recipient Donor

Other SPsOther SPs

Subscriber

““INSURANCE”INSURANCE”MODELMODEL

““BANK”BANK”MODELMODEL

Subscriber-Operator Interaction Models



CLEARING CLEARING HOUSEHOUSE

(NPAC by ICC,(NPAC by ICC, IB by AUSTEL*)IB by AUSTEL*)

BILATERAL BILATERAL AGREEMENTAGREEMENT

IncumbentOperator

mgt. i/f

IncumbentOperator

IncumbentOperator

SuperParties

mgt. i/f

mgt.i/f

mgt.i/f

** Number Portability Administration Centre, Illinois Commerce ChamberIndependent Body, AUStralian TELecommunication authority

CLEC

CLEC CLEC

CLEC

CLECCLEC

Inter-Operator Interaction Models



Existing Flows• Subscription of a new line• Withdrawal• Location change• New DN assignment• Subscriber Profile Update• Arrears

Missing Flows • Porting to/from a Competitor• Returning to/from a Competitor• Number Returning to/from a Competitor• Subsequent Porting

Example of OSS process: SERVICE DELIVERY

OSS: new process flows



BT GNP experiences order-handling

OSS OSS NetworkNetwork

faxorders

electronicorders

BT OLO

• It is essential that order-handling is automated when volume traffic is realised. • The early definition of the order-handling interface is vital.• It must be standardised across all carriers.



Impact of NP on OSS - it’s everywhere !

Service Management

System

Network

OperatorServices

MaintenanceServices

BillingSystems

NetworkManager

new order-handlingmechanism

Billing changes

Operator Assistance/999/Directory changes

Network prefixesNetwork routing

new Fault & Repair processes

OSSElectronic

Manual

Number Administration/

reservation

Number Administration/

reservation



P811 Number Portability - initial results

• Business interaction model based on roles

• Cover Geographic and Non Geographic

• Model of Numbers, Number Ranges and Regulators

• Demise of Number ranges

• Model ‘Number’, reservation and administration processes

– Allocation processes

– State model

– Access users, processes and access/security rules

• Model Number Porting Processes

• ENPAC Euro NP Administration Centre – -a physical instantiation of

• Number /plan administration

• Number porting administration / agency

• Number reservation agent role



Number Model Evolution

NumberNumber

Number RangeNumber Range

Number Range HolderNumber Range Holder

National Regulatory AuthorityNational Regulatory Authority

1+

Administers

Assigns

Defines

1+

Service UserService User

‘owns’

OrganisationOrganisation

Administers

1+

Current Constraint:must be Network Operator

Current Constraint:Numbers allocated in ranges



Number States

FreeRNR

Reserved

Active

ANR

UNR orT1 Expires

DNR

PortingMNRP

T2 Expires

Ported

DNR

T3 Expires

RNRP

Number Ownership Changes

UNRP

Number Ownership Changes



Number Portability Roles

• Current Descriptions

– Based on Current Organisations • e.g. Public Network Operator, OLO,

Regulator

• Models

– Define Roles independent of current organisations

– Service Provider

– Network Operator

– Number/plan Administration

– Number Reservation

– Number Porting Administration

Network Operator Role

Network Operator Role

ServiceProvider Role

ServiceProvider Role

Traditional Public Network Operator

PNO

Number Reservation

Number Reservation

Number/planAdministration



OSS NP Scenarios

NO 1NO 1

Key Coloured shape indicates where service is provided for the number.

No. Reservation Agency n

No. Reservation Agency 2

European Number Portability Admin Centre ENPAC

Number reservation

Number reservation

Number Porting Administration


PNO

NO 2NO 2

NO nNO n

SP1SP1 SP2SP2 SPnSPnSP3SP3 SP4SP4

No. Reservation

Agency




Moving to Service Provider 1

NO 1NO 1





Number reservation

Number reservation



PNONO 2NO 2

NO nNO n


No. Reservation

Agency


Number/plan Administration



Moving to Service Provider 2

NO 1NO 1





Number reservation

Number reservation



PNONO 2NO 2

NO nNO n


No. Reservation

Agency


Number/plan Administration



Next steps

• P811 runs to end 1998

P811

Initial

Analysis

and Design

Euro NP

OSS

Experiments

1998 1999 2000

Euro

NPAC

Service

IntroductionVendor

discussions

&

Planning

NMF NP

Catalyst

Project???


Charging and Accounting Case Study



P811 Charging and Accounting

• Context

– Deregulation impacts:• transparency, Equal access,• cost representatives.

– Work in progress in ITU, ETSI on signalling protocol to provide Charging Data e.g. DSS1, ISUP, INAP, SCP to SCP.

– Work in progress in other forums like NMF on BAC

– Agreements on SP/NO or NO/NO about circuit or service usage.




• Major topics

– On line charging and call processing are tightly linked, for example, in Call Detail Records generation

– On line Charging for services provided also by Network Operators and Service Providers

– Off line covered Accounting and every aspects using CDRs transferred from network or service provider until billing requirements




• The expected result is:

– To get generic aspects of OSS interconnection on this subject and on both side SP and NO by extending what is still existing

– To cross requirements amongst the two level network and OSS

– To extract what is needed and useful for services in particular NP

– To open up on mobility with service like Virtual Home Environment



Cover both Network and OSS issues Real Time Charging Focus




Summary

• Driven by deregulation and regulation

• Requirements and analysis focused

• Generic Framework for OSS interconnect– Follows NMF CIGP model

• Development of Numbering and Porting models– Logical roles– Model of ‘Number’– State model for Number – Processes for management of: Numbers & Porting– Covering repair and provisioning processes

• Charging and accounting– OSS and network interconnect– On-line and off-line



P811 Timescales

• Requirements

– Issue 1 end April 1998– Final up-issue in Deliverable 1 - December 1998

• OSS Framework

– Issue I Draft Framework September 1998– Final up-issue in Deliverable 1 December 1998

• Number Portability

– OSS scenarios and requirements analysis - end May 98– Provisioning processes - September 1998– Repair processes - September 1998– Security process requirements - October 98– Information Model - November 98– Final up-issue in Deliverable 2 - December 1998

• Charging and Accounting

Documents

TMN Workshop Antwerp, 27 May1998 Reference Framework for OSS Inter-connection inc. case studies on Number Portability, Charging and Accounting Dave Milham