Integration of IPTV into Existing Operating Systems

Rapid broadband growth and consumer demand for advanced TV services fuel the Internet Protocol Television (IPTV) market. To capture this revenue opportunity, carriers should promptly respond to constant changes in the market, to customer demands for new features and services, by quickly and cost-effectively evolving their IPTV offering as needed. Their service offering should be diverse, attractive and unique to local market.

ZTE's IPTV platform provides carriers a proactive as well efficient way to offer new and customized services. Besides, ZTE has developed a highly-skilled IPTV team of R&D and marketing, to ensure fast and high quality service delivery, and that the individual needs of each local market are met.

One of the challenges that face operators is that whether their Billing Operating Support Systems (BOSS) systems can support these new services. ZTE's middleware well solves this problem. The middleware, as the core software of IPTV system, provides abundant standard and open application program interfaces (APIs) that allow integration with operators' existing billing and operating systems. A deep collaboration between operators and equipment providers is necessary to facilitate integration between the middleware and the external OSS.

Socket interface
New IPTV services entail great impact on operator's existing BOSS systems. The IPTV deployments require the integration of legacy systems into IPTV systems. Fig. 1 illustrates the network configuration between the middleware and operation system. As it shows, socket as an interface for communication between IPTV system and operation system is introduced. MML stands for man-machine language, a computer language.

A "socket" is a loose term used to define "an end point for communication." Berkley sockets is an API developed at the University of California at Berkeley, The Berkley socket API consists of a set of C function calls to support network communication. 
    
Transmission Control Protocol/IP (TCP/IP) stack is the basis for Internet and new services like IPTV. A socket is used as an interface to TCP/IP. The socket API is not specifically designed for TCP/IP. Therefore, more overhead programming and understanding is required to develop TCP/IP applications.

A TCP/IP socket connection with the IPTV system is established before the BOSS system sends messages interactively, then gets disconnected when it stops sending the messages.
 
The service message of the socket interface protocol transfers the operation information. The service message is a minimum unit between the BOSS and IPTV systems, according to the format of which, the BOSS system converts MML command into a properly-encoded message, and sends it to the IPTV system while synchronously encoding the received message.

Integration into BOSS 
The APIs easily integrate the IPTV system into the operator's existing BOSS that is responsible for provisioning end users and operating contents and services. The APIs allow integrators to create and manage user accounts, as well as service packages and pay-per-view services, and also provide UI notification and group management. The interfaces and their parameters could be customized according to different system interfaces.

With respect to the billing system, it supports two ways of integration as there are different data transfer requirements. If the IPTV platform needs to offer real-time billing for prepaid services, it requires an open API to connect with the billing system. In the non-real time billing mode, it sends the Call Detail Records (CDR) data to the billing system.

Conclusion
One of the challenges in IPTV deployment is to interwork with the existing BOSS infrastructure on which to offer new services. ZTE as a leading IPTV vendor provides a middleware that features open APIs for the integration of the existing BOSS. Through ZTE's middleware solution, operators can implement a unified operating and billing platform, improve efficiency of their network, and enhance their revenue streams. 

 

 

 

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