Mobile MMS Content Adaptation Technology Research

Multimedia message service is developed from short message service and enhanced message service, and it provides a complete end to end solution to multimedia communication service. China Mobile was the first multimedia message service provider in China, and the service was launched on Oct 2002. The service was known as "CAIXIN", and it was the starting point of the data service epoch for China Mobile. Multimedia message service was treated as the drive of 2.5G and 3G data services, and it has a great marketing opportunity and foreground.It is very important to provide stable,reliable and high quality service to costumer in order to make the service success. There are more than 4500 terminal models in China's market, and the specifications of terminal are varies from different terminal provider. That makes multimedia message wouldn't be able to work properly, especially on Chinese character display. Those problems caused unsatisfied customer and complains. According to statistic data, more than fifty percent complain caused by terminal, and the service could only reach seventy eight percent of China Mobile's multimedia message users. It is a challenge to telecommunication operators on enhancing service quality by standardize terminal since the operators do not control the terminal channels. In order to solve the problem, adjustment on network is the best way.This thesis starts from analyzing existing media type and China Mobile's current network environment, and comes up with basic functions and key technologies. It draws a conclusion on message adjustment system for multimedia message service, and it also presents applications of multimedia message in China Mobile's network.The main objectives are as follows:1,Doing marketing research on multimedia message based on China Mobile's current conditions. The conclusion shows that doing message adjustment is the best way of solving the problem.2,Analyzing message format, and figure out the solution.Going through the solution, and doing the feasibility research.3,The system is designed from views which include system structure, service process, interface, and encoding. In the process of system design, in order to make the system extendable, pay extra attentions on system modules. Since there are no existing international standards in this area, we standardized the interface, message format, and message encoding.4,There are three solutions which according to China Mobile's network environment.5,China Mobile ran a trial version based on solutions. During the trial period, we did exam which focusing on data model, technical feasibilities, and real-time data. It gains experiences for service phase.