APPARATUS AND METHOD FOR MEDIA ACCESS CONTROL BASED CROSS LAYER OPTIMIZATION

摘要

A CLO(Cross Layer Optimization)-based MAC(Medium Access Control) system and a method thereof are provided to efficiently implement QoS(Quality of Service)-guaranteed transmission by horizontally arranging 7 layers of each OSI(Open System Interconnection) model and making CLO information for each layer shared through API(Application Programming Interface) pipelines so that every layer can share various information for many dynamic changes in a wireless environment. A CLO-based MAC system(403) comprises an application API pipeline(401), a MAC API pipeline(402), a Tx packet processing unit, an Rx packet processing unit and a shared pool memory(410). The application API pipeline(401) is provided to make a connection with an upper interface. The MAC API pipeline(402) is provided to make a connection with a lower interface. The Tx packet processing unit receives a CLO application policy descriptor and a CLO MAC policy descriptor from the application API pipeline(401) and the MAC API pipeline(402) and transmits Tx packets to a physical layer. The Rx packet processing unit forwards CLO information for Rx packets, received from the physical layer, to the API pipelines(401,402). The shared pool memory(410) stores Tx packets and Rx packets.