MULTICAST DATA TRANSMISSION FROM A WEB SERVER TO CLIENT TERMINAL DEVICES USING A WIRELESS LOCAL AREA NETWORK

摘要

A method of multicast data transmission from a web server to client terminal devices using a wireless local area network (WLAN) includes, before transmitting data from the web server, data preprocessing including data object type identification, forming of one or several logical channels in the overall bandwidth of a WLAN for each data object type, fragmentation of data objects into multiple data packets, and marking of each data packet with a header which contains at least transmission parameters. Data packets with headers are transmitted within the logical channels by data type, in a cyclic retranslation mode or by duplicating data packets and transmitting copies with delay. Data reception by client terminal devices includes identification of a logic channel for each data packet, packet redistribution among logic channels followed by integrity control of received data packets in each logic channel with error correction

主权项

1. A method of data transmission, comprising:
preparing, by a server, data for multicasting from the server to client terminal devices via a wireless local area network (WLAN) including identifying data objects in the data by data object type and configuring one or more separate logic channels in a bandwidth of the WLAN for each data object type; preparing, by the server, the data objects for multicasting by fragmenting each of the data objects into multiple data packets, and providing each of the data packets with a header containing corresponding transmission parameters; multicasting the data packets via the WLAN with the headers using the separate logic channels of the WLAN by cyclic retranslation mode of data packets or by duplication and transmission of copies with delay.