METHOD AND APPARATUS FOR CONTROLLING DOWNLINK DATA SYNCHRONIZATION IN EVOLVED MULTIMEDIA BROADCAST MULTICAST SERVICE(EMBMS) TRANSMISSION

摘要

The present invention is technical for controlling the downlink transmission of data synchronization in eMBMS radio link control entity of the base station proposes a scheme. By determining for each one of the service data unit length indicator corresponding to one of the extended bit, the length indicator and the extension bit of each byte of the RLC SDU are aligned, the base station service data having different length distribution produces different length indicator for the unit. By adopting the technical scheme of the present invention, the corresponding radio link control header overhead is fixed for each of the service data unit, so that the base station even if packet loss occurs in the successive service data unit received by a particular base station and synchronization between different base station receives exactly is still achieved. ;