Triple Play Service Delivery Architecture (TPSDA)

Overview

Benefits

Components

Collateral

News

The Triple Play Service Delivery Architecture (TPSDA) is the blueprint architecture to accelerate IP network transformation for delivery of video, voice, data and entertainment services. It is an end-to-end architecture designed from the ground up to deliver high subscriber scale, high bandwidth throughput per subscriber and high concurrency – the fundamental attributes for a new era of ‘always-on’, mass market residential broadband services.

TPSDA represents a significant upgrade from first-generation broadband network solutions - that tunnel “best effort” Internet traffic across the network – by providing distributed, fine-grain policy enforcement with centralized policy control to deliver multiple services to subscribers, including managed services such as IPTV, voice and managed online services as well as unmanaged services such as High Speed Internet (HSI). TPSDA is unique in utilizing all parts of the network to deliver and enforce policy end-to-end.

TPSDA 2.0: Leveraging the network to enhance the TV & video experience

TPSDA 2.0 is the evolution of TPSDA, powered by applications intelligence, to assure and optimize content delivery enabling operators to take IPTV to the next level. This is achieved by caching, storing, streaming and splicing video content within the TPSDA network elements as well as characterizing application layer content traversing the network. This is needed to support the evolution of IPTV services to a new level of mass personalization of content and ubiquitous HDTV.

TPSDA is by far the most widely deployed end-to-end architecture for triple play networks today, with over 55 deployments to date.

TPSDA leverages Alcatel-Lucent innovations to provide a reliable and virtually future-proof foundation for delivering innovative multimedia services. To the end-user, TPSDA provides a superior Quality of Experience (QoE); to the operator, a proven and cost-optimized network foundation for fast service roll-out and new revenue generation.

Superior quality of experience for the end-user

Uses distributed service and application intelligence across the network elements and QoS policy enforcement end-to-end with centralized management for maximum scalability, service richness and uncompromised performance of IPTV, voice and Internet services
Accommodates massive growth of video traffic level in the network due to mass scale unicast services with high concurrency and high-bandwidth services such as HDTV and multi-room IPTV
Provides integrated control over subscribers, network, services and applications to prevent congestion and ensure operational excellence
Ensures non-stop service delivery with high availability platforms and comprehensive approach across entire infrastructure for control, forwarding and management plane resiliency
Controls network resources and subscribers and integrates service management, providing a consistent, high quality user experience
Enforces network security and authentication to prevent service theft and service denial and protect digital rights

Improve profit potential for operators

Accelerate deployment of innovative services to create competitive advantage, attract subscribers, reduce churn and grow revenues
Develop new revenue opportunities through local, zoned and targeted ad insertion
Create new value for Internet video content using application assurance to offer a new portfolio of managed online services and embrace over the top phenomena as an opportunity
Optimize infrastructure costs with integrated and distributed architecture as well as fiber to the most economical point
Reduce operational costs with staged graceful migration of legacy voice and HSI services over a converged infrastructure

Click the image for a larger version of the diagram.

TPSDA is based on an innovative and comprehensive product portfolio specifically designed to meet next generation triple play infrastructure and network transformation requirements. The architecture leverages Alcatel-Lucent's industry-leading broadband access, optics, Carrier Ethernet and service-aware IP technologies to address the fundamental challenges of optimizing performance and cost with distributed functionality, allowing each device to optimize its role in the network to meet individual service needs. TPSDA combines these technologies with robust subscriber and network management, security capabilities, and a comprehensive suite of design, deployment and integration services.

Key Network Elements:

Icon	Role
RG	Residential Gateways (RGs). RGs are the demarcation devices between the home network and the operator network. They typically combine a broadband access termination function with an integrated router and firewall, VoIP gateway and wireless LAN access capabilities. RGs enable the connecting of home computers, TV set-top boxes (STBs), and existing POTS/ISDN “black phones,” as well as IP “hard phones” and IP “soft phones.”
BSAN	Broadband Service Access Node (BSAN). This new generation of access devices enables operators to deploy fiber to the most economical point in their network with flexible deployment models utilizing DSL technologies, such as ADSL, ADSL2plus, SHDSL, VDSL and VDSL2, in addition to fiber to the home technologies such as GPON and Ethernet. The BSAN is an IP access node enabling a wide range of services to both residential and business users including high speed internet access, voice access with SIP or H.248, IPTV, business access and mobile backhaul. The Alcatel-Lucent Intelligent Services Access Manager (ISAM) portfolio supports the role of the BSAN.
BSA	Broadband Service Aggregator (BSA). The BSA combines the strengths of Ethernet and multiprotocol label switching (MPLS) technologies to provide a Carrier Ethernet solution for efficient traffic aggregation. The BSA supports subscriber access control functions and optimizes quality and efficiency in IP service transport over Ethernet for both IP unicast and multicast traffic. It supports ring and tree topologies in the aggregation network. The BSA has IP service and application awareness and support functions. The Alcatel-Lucent 7450 Ethernet Service Switch (ESS) supports the role of the BSA.
BSR	Broadband Service Router (BSR): The BSR acts as the converged IP service edge and performs IP routing functions. The BSR uses a unified mode of operation based on IP over Ethernet (IPoE) and DHCP for strategic, next generation services as well as PPPoE for legacy service migration. Together, the BSA and BSR work as a virtual node that functionally replaces the BRAS and associated ATM-based aggregation nodes in legacy IP service infrastructures.The Alcatel-Lucent 7750 Service Router (SR) supports the role of the BSR. It is also used in the core where reliability, scale and service virtualization are crucial.
Optical Transport	Optical Transport: Data-aware MSPP and WDM platforms aggregate multiple services to cost-effectively connect the BSA with the BSAN and enable a smooth evolution to all packet transport. The Alcatel-Lucent OMSN and DMX are SDH and SONET multiservice provisioning platforms while the 1850 TSS is a hybrid packet/TDM/WDM transport service switch. The Alcatel-Lucent 1830 PSS, 1696 MS and 1626 LM are metro and core WDM transport platforms.