Method for transmitting multi-mode data business in mobile multimedia broadcasting system

Abstract

The invention discloses a method for transmitting multi-mode data traffic in mobile multimedia broadcasting system. Different service data are encapsulated into corresponding service data packets according to data traffic mode and corresponding protocols; then, the service data in different modes are packed to generate extensible multi-protocol encapsulation packets according to extensible multi-protocol encapsulation syntax structure; subsequently, the extensible multi-protocol encapsulation packets are fitted to data field of China mobile multimedia broadcasting multiplexing subframe; finally, the China mobile multimedia broadcasting multiplexing subframe is multiplexed and modulated to realize the multi-mode data traffic transmission based on China mobile multimedia broadcasting system. The invention further defines the mobile multimedia broadcasting data protocol hierarchy to effectively realize transmission and receiving of multi-mode data traffic in mobile multimedia broadcasting system; so users can receive multi-mode data traffic conveniently and rapidly; thereby, the user experience is greatly improved.

Description

technical field [0001] The invention belongs to the technical field of mobile multimedia broadcasting, and in particular relates to a transmission method of a multi-mode data service in a China Mobile Multimedia Broadcast (CMMB for short) system. Background technique [0002] The CMMB system uses high-power S-band satellite signals to cover the whole country, uses ground supplementary transponders to forward satellite signals at the same frequency and content at the same time, supplements points to cover satellite signal blind areas, and uses wireless mobile communication networks to construct return channels to form one-way broadcast and A mobile multimedia broadcasting network combined with two-way interaction. [0003] The CMMB system allows people to receive radio and television viewing and information services anytime and anywhere through various means of transportation and various portable terminals through satellite and terrestrial wireless broadcasting. Undoubtedly,...

AI Technical Summary

Problems solved by technology

However, due to the characteristics of CMMB, the wireless bandwidth provided by the service network to each mobile terminal is very limited

Therefore, it is necessary to meet the acceptable transmission efficiency of the terminal, ensure the accuracy of the transmission, save the power of the terminal, and better meet the multi-mode data service transmission required by the mobile multimedia service. At present, there is no suitable method to achieve this.

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