Development of a CDMA Converged T-DMB Receiver for Interactive Broadcasting Web Site Services

In this paper, we present the configuration diagram of the interactive terrestrial digital multimedia broadcasting (T-DMB) system using the code division multiple access (CDMA) telecommunication network for the interactive broadcasting services. The system consists of a T-DMB transmission system, a interactive receiver with a CDMA module, and a return channel server. We also describe the protocol stack for providing data broadcasting service in T-DMB and the interactive broadcasting web site (BWS) service of a new concept based on it. In order to verify the proposed service, we design and implement an interactive T-DMB receiver with a CDMA module. And also a return channel server is operated to test it, which includes the interactive contents produced in advance, responding user´s request. Under the constructed test environment, the proposed service and the newly designed receiver were verified. This means that new interactive services in digital broadcasting are possible by using mobility of T-DMB and CDMA.