Development Trends of Key Technologies for IPTV System

Fast growing IPTV services have become a major concern in the information industry of China. Unfortunately, the IPTV service model has not been perfected yet after long-time trial made in a couple of Chinese cities. The question of how to select optimum technologies for IPTV is difficult to be solved in a short term. So far most trial IPTV services in China are targeted to provide a small number of local viewers with television and recorded programs. Accordingly, the technology used for the available IPTV services can hardly become a paradigm for future IPTV technology development. Therefore, with a ultimate goal of constructing a countrywide IPTV service network that can meet requirements of commercial operations, it is necessary to conduct research into design of countrywide IPTV network architecture, improvement of the bearing network, selection of video encoding technology, terminal structure, building of the content distribution network, establishment of the open Digital Rights Management (DRM) platform, and construction of media asset management system.