METHOD OF DATA CONTROLING BY DATA LINK LAYER IN COMMUNICATION SYSTEM

摘要

A method for processing data of a data link layer in a communication system is provided to reduce a loss of data to be transmitted to an upper layer by allowing an LLC(Logical Link Layer) to temporarily store received data in a ring buffer. When an LLC layer receives data from a lower MAC(Media Access Control) layer(S201), it checks whether it has been set so as to use a ring buffer currently(S202). When the LLC layer uses the ring buffer, the received data is temporarily stored in the ring buffer(S203). The LLC layer checks whether the data can be transmitted to an upper layer(S204). When the data can be transmitted, the LLC layer transmits the data within the ring buffer to an upper layer(S205). After transmitting the data, the LLC layer erases all the data stored in the ring buffer(S206).