Presentation on theme: "7. Fixed and mobile convergence and transition to IMS platform"— Presentation transcript:
1 7. Fixed and mobile convergence and transition to IMS platform 7.1. Common remarks and definitions7.2. FMC motivations7.3. FMC service architecture7.4. FMC and UMTS7.5. FMC and IN solutions7.6. FMC and IMS platform
2 7.1. Common remarks and definitions In competitive markets - operators’ main challenges - new marketopportunities/comprehensive solutions and servicesConvergence of fixed and mobile networks – for what?Fixed network operators - mobility enhances the service portfolio leading toan improved service differentiation strategyMobile network operators - fixed network allows the carrier to become a fullservice providerFixed-Mobile Convergence covers two main aspects: infrastructure and services. Infrastructure aspect deals with the capability of different network elements: switches, Intelligent Network (IN), or NGN, and Telecommunication Management Network (TMN) or Customer Care and Billing System (CC&BS) to support fixed or mobile applications. Services aspect is related to the different fixed-mobile convergence services that can be proposed to users (residential or professional subscribers).In deregulated markets one of the main areas of interest for any carrier is to open up new market opportunities and to offer their subscribers comprehensive solutions and services. For a fixed network operator, mobility enhances the service portfolio leading to an improved service differentiation strategy. For a mobile operator, a fixed network allows the carrier to become a full service provider. One-stop shopping for any combination of mobile and fixed access, broadband and data services is an ideal means of differentiation in a competitive environment.The combination of both networks, fixed and mobile, offers the chance to provide new and/or common services. In addition, it allows to reduce operational costs by using common resources such as transport, or by exploiting synergy effects such as a common OA&M. In a competitive market, Fixed Mobile Convergence (FMC) gives the operators the opportunity to go a step forward, both in price and service. To implement Fixed Mobile Convergence leads to a new market with unique services and high revenue potential.
4 Infrastructure convergence ESP – External Service PointSCE – Service Creation PointSCP – Service Control PointSMP – Service Management PointSSP – Service Switching PointSSF – Service Switching Function
6 Multimedia Communications Service convergenceCSFixedCommunicationsMobileCommunicationsPSMultimedia Communications
7 The combination of fixed and mobile networks - Fixed Mobile Convergence (FMC)# Any combination of mobile and fixed access, voice, video and data servicesdecrease operational costs by using common resources - transport, OA&M# FMC implementation leads to a new market with unique list of services andhigh revenue potentialFixed-Mobile Convergence allows network and service operators to make moreefficient use of existing access technologies (GSM, DSL, Wi-Fi), as well astaking an advantage of the roll-out of new access technologies such as 2.5/3G,WLAN, Bluetooth, Wi-Max UMA, etc, by launching new voice & multimediaservices and realizing cost reductions by implementing common servicemachinery for different access networks.
8 Fixed-Mobile Convergence allows users to connect to complementary access networks, buy and use a wider range of personalized services using fewer terminal devices. The primary device will be portable and for most applications it will be a multi-radio device, supporting voice and multimedia services.Users can be contacted with a single number independent of the network connection. The target of convergence is to enable easy implementation for the operator and service provider, and easy usage of services for end users. This will enable true mobility for users in both the residential and business environment.
9 Statistics for mobile and fixed networks # According ITU a number of global wireless phone subscribers exceeded the numberof wireline subscribers in 2002# In 2005 worldwide projections are for about 1.2 billion wireline subscribers andalmost 2 billion wireless subscribers# Wireline subscribers’ annual growth estimated at 2% and wireless growth at 10%# While mobile phone operators have seen phenomenal growth in their market,competition has eroded their average revenue per userARPUEurope - Euro 14 – 35USA Euro 34Japan - Euro 60
10 Definition of FMCThe following definition of FMC is based on the ETSI FMC ad hoc workgroup docs:Fixed and Mobile Convergence (FMC) is concerned with the provision of network and service capabilities, which are independent of the access technique. This does not necessarily imply the physical convergence of networks. It is concerned with the development of converged network capabilities and supporting standards. This set of standards may be used to offer a set of consistent services via fixed or mobile access to fixed or mobile, public or private networks.An important feature of FMC is to allow users to access a consistent set of services from any fixed or mobile terminal via any compatible access point. An important extension of this principle is related to roaming: users should be able to roam between different networks and be able to use the same consistent set of services through those visited networks. This feature is referred to as the Virtual Home Environment (VHE).
11 7.2. FMC motivationsCustomer motivations – more mobility with required list of services# The FMC greatest benefits - for the end-user# Mobility of people and the need to communicate on the move are increased andtherefore the demand for mobile communications# Conventional fixed networks continue to serve the home or the office# Wide range of services within a uniform network and mobile connection is mostimportant# Low costs and quality standards regarding reliability, security, etc.Three aspects of mobility - terminal/service/personal mobility:Terminal mobility allows the customer the use of his (personal) terminal, e.g. his telephone at any place, at home, in the office or en route even abroadService mobility provides for the customer an invariable set of services independent of the access type and location. The services should have the “same look and feel” even in different networksPersonal mobility means reachability in the sense, that the customer is reachable with one number, his personal number, everywhere. He can define several reachability profiles (private, office) and he can change his profiles, especially the terminal where he wants his calls to arrive, on line from any terminalCustomer motivation. The greatest benefits from the convergence of mobile telephony and fixed networks have to be noted for the customer, the end-user. The mobility of people and the need to communicate on the move increases and therefore the demand for mobile communications, while the conventional fixed networks continue to serve the home or the office. From the customer’s standpoint a wide range of services with a uniform fixed network and mobile connection is of utmost importance.Together with mobile communications the customers require comfort and low costs, and all under at least the today’s quality standard regarding reliability, security etc.
12 7.2. FMC motivations (Cntd) Operator motivations – better position on the market –increasing revenue, gaining new users# FMC can be understood as a marketing strategy to attract new customers bylaunching new innovative products# Offering customized set of attractive services: (VPN, VHE, …)# IN Services developed in fixed networks - Call Forwarding, Personal Number# Services developed in mobile networks - Prepaid Service, SMS# Investment cost saving (HW/SW for billing, IN equipment,…)# Operational cost savings (common OAM processes, common numbering plan,…)Operator motivation. Through FMC the operator can distinguish himself from his competitors, thus reducing churn and gain new customers.The definition of common services makes it possible to target special customer segments by offering customized set of attractive services. Especially enhancing Virtual Private Networks by FMC allows a better carrier positioning in the profitable corporate market. Thus, FMC can be understood as a marketing strategy to attract new customers by launching new innovative products.But FMC offers more than just differentiation. It is an excellent way to increase revenues. For example, services like Call Forwarding or Personal Number increase the call completion rate and consequently the revenues. By extending Prepaid Service already well known in mobile networks to the fixed network, new revenue streams can be tapped even in the legacy network. In addition, offering this service to fixed network subscribers may lead to a reduction of operational cost due to reduction of churn-induced costs or minimization of unpaid bills. This leads immediately to the third advantage of FMC, which are operational cost and investment savings.By providing unified procedures for service activation and deactivation, payment processes and other operational and network management processes, staff may be trained on one system only. Common processes lead to more efficient network operation. Investment for hardware and software, e.g. for billing, IN or other equipment, can be reduced by using synergy effects. A significant reduction of maintenance costs through shared use of workforce may also be possible. Network advantages can be obtained through a reduction of planning efforts by using common IN-systems and a common numbering plan.
13 7.3. FMC service architecture FMC services need to be provided over different types of access networks (wireline, cable network, Wireless Local Loop, Cordless Telephony System, cellular networks, satellites systems...). In order to provide FMC services, fixed and mobile network elements work together directly or via Intelligent Network (IN) platforms. As IN solutions support standardized interfaces, they can be used easily in multivendor environments, where fixed and mobile network elements may exist from different equipment suppliers.
14 7.4. FMC and UMTS UMTS characteristics in relation to FMC The following UMTS characteristics can be identified as potentialenablers for FMC:A. UMTS service capabilitiesB. UMTS radio interface applicability to a wide range of applicationenvironmentsC. FMC application scenarios in relation to UMTS
15 A. UMTS service capabilities The service capabilities associated with UMTS networks will provide the same service portfolio as ISDN and packet data networks. To allow for the multimedia services support the following requirements have been set in UMTS technical specifications: High speed data bearers (urban/suburban at least with 384 kbit/s for users moving at 120km/h; indoor at least with 2Mbps for users moving at 10km/h), both for circuit and packet dataMultiple QoS classes for packet data (still to be defined)Multiple media components during one and the same callAdd/delete resources and parties in multi-party calls
16 UMTS terrestrial radio interface (UTRA) B. UMTS radio interface applicability to a wide range of application environmentsUMTS terrestrial radio interface (UTRA)The UMTS terrestrial radio interface UTRA provides the W-CDMA mode and the TD-CDMA modeThe W-CDMA mode - for public macro- and micro-cell environments and paired spectrum allocations and for data rates up to 2 Mbit/sThe TD-CDMA mode - for public micro- and pico-cell environments, for unlicensed cordless and public wireless local loops, unpaired spectrum allocations and for data rates up to 2 Mbit/s (asymmetric traffic)
17 C. FMC application scenarios in relation to UMTS Main target of FMC - roaming in fixed and mobile networks and seamless handover between different networks (fixed/cellular/wireless)1. UMTS Cordless Access - connection of cordless telephones with UMTS radio interfaceUMTS users roaming between home cell and the public cellular networkSingle number and access to the converged services in both environmentsPersonal and terminal mobility is offered between private and public networks.2. Fixed access personal mobility with UMTS/USIM cardA subset of UMTS services may be offered via wireline terminalsThe subscriber uses the USIM (User Service Identity Module) card to get access tothese servicesFMC building blocks extend the UMTS virtual home environment of the cellular network to the fixed networkUMTS Cordless Access - connection of cordless telephones with UMTS radio interface support could be considered. This would allow UMTS users to roam between their (private) home cell, that could be connected to e.g. a fixed network, and the public cellular network while staying reachable under a single number and having access to the converged services in both environments.These services could also be offered via (cordless) private networks or cordless LANs, as long as the user is within coverage of the corporate network. Outside this area the same service set can be accessed via the public network. This will in the most economic way allow the corporate user to maintain the same service environment, while using the private or public network. Between the private and the public networks both personal and terminal mobility is offered.2. Fixed access personal mobility with UMTS card. A subset of UMTS services may be offered via wireline terminals. The subscriber uses the USIM (User Service Identity Module) card to get an access to these services. FMC feature building blocks extend the UMTS virtual home environment of the cellular network to the fixed network. In the wireline core network, terminal mobility management concepts could be re-used to allow for personal mobility.
18 3. FMC and Virtual Home Environment (VHE) MotivationUMTS concept - customers get services anytime, independent of the access technology and the core networkUMTS aims to provide to the user a comprehensive set of services, features and tools, which have the same “look and feel” whether they are used at home or abroadVirtual Home Environment (VHE) - ETSI concept - a system concept for service portability across network bordersRelation of VHE concept and FMC concept:- VHE allows a service provider (incl. fixed or mobile network operator) to offer services independent of the core network and access; ”seamless services” both in the fixed and the mobile networkMotivation of VHE. In the UMTS vision, customers get their personalized services anytime and with their familiar user interface, independent of the access technology and the core network used. UMTS aims to provide to the user a comprehensive set of services, features and tools, which have the same “look and feel” whether they are used at home or abroad. ETSI therefore introduced the ”Virtual Home Environment” concept, denoting a system concept for service portability across network borders.Obviously the VHE concept is strongly relevant to FMC scenarios: VHE allows a service provider (incl. fixed or mobile network operator) to offer services independent of the core network and access; ”seamless services” both in the fixed and the mobile network
19 CAMEL services for FMC/VHE applications in UMTS Customized Applications for Mobile Enhanced Logic (CAMEL)
20 The CAMEL-based VHE solution The GSM solution for transparent service availability at a visited cellular network is based on the concept of the Customized Applications for Mobile Enhanced Logic (CAMEL).The CAMEL concept allows for a VHE encompassing a subscriber’s home mobile network and any visited mobile network that has a CAMEL roaming agreement with the home network. Thus the mobile subscriber when roaming in a visited network can use the (non-standardized) IN services subscribed in his home network.To achieve this, the Mobile Switching Centers (MSCs) of the visited networks can communicate directly with the home network’s Switching Control Point (SCP) by means of a completely standardized INAP protocol - the CAMEL Application Part (CAP). The SCP is inquired for call control guidance during incoming and outgoing calls.
21 The CAMEL-based VHE solution The conditions for triggering the SCP are administered in the Home Location register (HLR) and are downloaded to the Visited Location Register (VLR) when the subscriber roams between location areas. In addition, the Mobile Application Part (MAP) protocol applied between SCP and HLR allows for the SCP to request subscriber status and location information in order to assist the service logic programs in deciding how the call should be further progressed (“Any Time Interrogation” procedure).Because the visited network is transparent for the service execution, this scenario is also referred ”service tunneling” or ”service remote execution”. However, in some cases the visited network may not be able to support the desired service or the storage and execution of the appropriate data.The GSM CAMEL VHE mechanism is adapted to UMTS. Hereby the functional network model of GSM CAMEL will be kept, but the used protocols MAP and CAP between the network entities are modified in order to support new UMTS capabilities.
22 7.6. FMC and IN solutionsCommon IN platform for both networks provides following features:support of new access technologies for network operators, serviceproviders, companies and end-users;IN-supported number conversion between fixed and mobile networks;IN-controlled creation of individual billing records for flexible and simplebilling; expenses are reduced due to the use of a single infrastructure forboth networks.Only standardized interfaces are used for the broadest range of networkelements from various manufacturers:MAP (Mobile Application Part) - to localize mobile subscribers,INAP (Intelligent Network Application Part) to communicate between INsystems and the base networks.
23 Personal Number (PN)The "Personal Number Service" means that the customer is available round the clock at a single personal phone number, regardless of whether located in a fixed or a mobile network. User-specific profiles managed by the user define whose calls shall get through, when and where. Also, incoming calls can be diverted to a single mailbox.Fixed Mobile Convergence and Virtual Private Network (FMC-VPN)The VPN under FMC conditions offers a series of improved performance features for fixed and mobile networks in form of an extended version of classic VPN service (= defined user group with access to the short numbers for the individual members and special rates). For example, the same short number can be used both on the mobile device and on the device connected at the fixed connection. Separate billing of private and business calls makes the invoice easy to read for the company and their staff. This service is suitable when combined with individual rate systems — especially for companies with various locations, fixed and mobile personnel and temporary staff.
24 Friends & Family (F&F)This service allows the end-user to define several telephone numbers that enjoy lower rates. The F&F list may contain the numbers of business partners, family members or friends who are called frequently, whereby special rates are valid for both the fixed and the mobile network. The end-user can easily administer these preferred numbers via a fixed network telephone, his mobile phone or the Internet.Prepaid Service (PPS)PPS was created for those customers who would rather not bind themselves by long-term contracts to any one fixed or mobile network operator, but who also do not want to lose the added value of integrated fixed and mobile networks. This service allows customers to communicate via fixed terminals or mobile phones and they will be charged to one single account paid in advance. The account balance is constantly kept up-to-date. The customer has clear control of his communications expenses through checking his account balance and through the various ways of renewing the account by individually defined amounts of money.
25 7.6. FMC and network evolution to the IMS platform IP Multimedia Subsystem (IMS) is a new framework, basically specified formobile networks, for providing Internet Protocol (IP) telecommunicationsservices.It has been introduced by the Third Generation Partnership Project (3GPP) intwo phases (release 5 and release 6) for Universal Mobile TelecommunicationsSystem (UMTS) networks. An IP multimedia framework was later introducedby 3GPP2 as the MultiMedia Domain (MMD) for third generation Code DivisionMultiple Access 2000 (CDMA2000) networks.
26 Concept of the IP Multimedia Subsystem (IMS) The IP Multimedia Subsystem is an open, standardized, NGN multi-mediaarchitecture for mobile and fixed IP-based services. It's a VoIPimplementation based on a 3GPP variant of SIP, and runs over thestandard Internet protocol. It's used by Telcos in NGN networks (whichcombine voice and data in a single packet switched network), to offer networkcontrolled multimedia services.The aim of IMS is not only to provide new services but to provide all theservices, current and future, that the Internet provides. In addition, usershave to be able to execute all their services when roaming as well asfrom their home networks. To achieve these goals the IMS uses openstandard IP protocols, defined by the IETF.
27 So, a multi-media session between 2 IMS users, IMS concept (Cntd.)So, a multi-media session between 2 IMS users,between an IMS user and a user on the Internet,and between 2 users on the Internet is establishedusing exactly the same protocol. Moreover, theinterfaces for service developers are also based inIP protocols. This is why the IMS truly merges theInternet with the cellular world; it uses cellulartechnologies to provide ubiquitous access andInternet technologies to provide appealing services.
28 IMS concept (Cntd.)The IMS concept was introduced to address the following network and userrequirements:• Deliver person-to-person real-time IP-based multimedia communications(e.g. voice or video telephony) as well as person-to-machine communications(e.g. gaming service).• Fully integrate real-time with non-real-time multimedia communications(e.g. live streaming and chat).Enable different services and applications to interact (e.g. combined useof presence and instant messaging).• Easy user setup of multiple services in a single session or multiplesimultaneous synchronized sessions.
30 History of IMSIMS first appeared in release 5 of the evolution from 2G to 3G networks for W-CDMA networks (UMTS), when SIP-based multimedia domain was added to NGN networks. Support for older GSM and GPRS networks is also provided.In 3GPP release 6, interworking with WLAN was added.3GPP release 7 adds support for fixed networks, together with TISPAN* R1."Early IMS" is defined for IPv4 networks, and provides a migration path to IPv6TISPAN - Telecoms & Internet converged Services & Protocols for Advanced Networks(ETSI)
31 Evolution of UMTS Technical Specifications to Release 5 (Rel’5) of the 3GPP – Transition to IMS Release 1999 (R’99) in April the initial standards for UMTS werecompleted by 3GPP. These standards are the basis for a majority of thecurrent commercially deployed UMTS systemsRelease 4 (Rel’4) in April 2001 was standardized in 3GPP, which providedsome improvements of the UMTS transport, radio interface and architecture.Rel’5 of UMTS was completed in March next significant evolution phaseof UMTS. UMTS Rel’5 will provide higher speed wireless data services withvastly improved spectral efficiencies through the High Speed Downlink PacketAccess (HSDPA) feature.
32 Release 5 (Rel’5) of the 3GPP High Speed Downlink Packet Access (HSDPA) offers significantly higherdata capacity and data user speeds on the downlink (theoretically up to 14Mbps peak) compared to R’99 UMTS through the use of very dynamic adaptivemodulation, coding and scheduling with Hybrid Automatic RetransmissionRequest (H-ARQ) processing.Through HSDPA, operators will benefit from a technology that will provideimproved end-user experience for Web access, file download and streamingServices, Wireless Broadband access to the Internet, intranet and corporateLAN will benefit greatly from HSDPA.
33 Release 5 (Rel’5) of the 3GPP (Cntd.) In addition to HSDPA, UMTS Rel’5 introduces the IP Multimedia System(IMS) architecture that promises to greatly enhance the end-user experiencefor Integrated multimedia applications and offer the mobile operator anefficient means for offering such services.The IMS enables new and more advanced multimedia applications foroperators (including VoIP), the ability for these services to interact and theability to fully integrate real-time, near real-time as well as non-real timeservices.UMTS Rel’5 also introduces the IP UTRAN concept to realize networkefficiencies and reduce network costs. IP UTRAN uses IP as a transportprotocol to realize network efficiencies that reduce the cost of deliveringtraffic and can provide wireless traffic routing flexibility.