Burst transmission scheduling method for mobile multimedia broadcast network

Abstract

The invention discloses a burst transmission scheduling method for a mobile multimedia broadcast network. The method comprises the steps of (1), sorting channels in a progressively increasing mode according to burst periods of the channels; (2), scheduling a first channel after sorting, then scheduling a second channel after sorting, and the like, until each channel is scheduled after sorting, thereby finishing first-time channel scheduling; and (3), carrying out next-time channel scheduling, wherein the scheduling sequence and mode are the same to those of the former time. According to the method, the scheduling disorder resulting from an RPS (Regulated Period Scheduling) scheme when buffer lengths of different types of receivers in the network are different is overcome, the unreasonable phenomenon that partial channels cannot be scheduled resulting from the extreme condition of the RPS scheme is also overcome, an effective solution for designing and realizing burst transmission scheduling in the mobile multimedia broadcast network is provided, thereby improving the burst transmission scheduling performance of the mobile multimedia broadcast network.

Description

technical field [0001] The invention relates to the technical field of wireless communication, in particular to the transmission technology of a wireless digital multimedia broadcasting system. Background technique [0002] With the rapid development of mobile technology, the spread of multimedia services has extended from traditional wired networks to wireless users. Relevant mobile TV standards include DVB-H (Digital Video Broadcast-Handheld), MediaFLO (Forward Link Only), ATSC M / H (Advanced Television Systems Committee-Mobile / Handheld), MBMS (Multimedia Broadcast Multicast Services), T-DMB (TerrestrialDigital Multimedia Broadcast) has been widely deployed. [0003] Nevertheless, mobile TV still faces some practical problems, such as the limited use time under the battery power limit. In order to reduce the receiver's energy consumption, the concept of time slicing is proposed in DVB-H and ATSC M / H. Time slicing involves broadcasting video data in bursts at a rate much h...

AI Technical Summary

Problems solved by technology

Since the receiver buffer lengths of different types of mobile devices are not necessarily the same, for different mobile devices, the maximum burst period of the same channel will be different, resulting in scheduling confusion, which is not feasible

In addition, the calculation of the channel burst period in PRS only needs to meet the condition that the channel burst period is less than the channel's maximum burst period, and some channels may be over-scheduled and some channels cannot be effectively scheduled.