Protocol Layer Structure

Service specific Convergence Sublayer (CS):

• Transformation or mapping of external network data
• Classify external network SDUs and associate them with proper MAC service flow (assigns SFID) and CID. SFID assignement is based on the QOS
• Payload Header Supression ()

MAC Common Part Sublayer (MAC CPS):

• Core MAC functionality of system access
• Bandwidth allocation
• Connection establishment and maintainence
• Classified to perticular MAC conection
• Quality of Service (QOS)
• Scheduling of data over PHY

Privacy Sublayer:

• Providing authentication
• Secure key exchange
• Encryption

Physical Layer (PHY):

• OFDMA,
• MIMO, AAS
• Space Time Coding (STC), Beam Forming
• HARQ
• Adaptive Modulation and Coding (AMC)
• Convolution Turbo Coding (CTC)