Application method of QoS, IPv6, Security in WiBro

Main service classes of WiBro are unsolicited grant service, real time polling service, non-real time poling service and best effort service. Concerning QoS assurance methods according to the class of service, L2 mobility with CAC factors of maximum/minimum bandwidth and traffic priority are applied at operator´s first implementation stage, and L2/L3 mobility with CAC parameters of maximum/minimum bandwidth, traffic priority, maximum delay and tolerated jitter are adjusted at the second implementation stage, along with more strengthen QoS manager functions at the third implementation stage. For IPv6 adaptation, dual stack of IPv4 and IPv6 is applied from terminals to subscriber networks, and gradually and partially IPv6 is applied from subscriber networks to public IP network at the first implementation stage, and dual stack for IPv4 and IPv6 with IPv6 header is applied in all networks at the second implementation stage, along with IPv6 in all networks at the third implementation stage. Finally, concerning security application, diameter based EAP-TLS and PKM are applied at the wireless region, and IDS/IPS is adapted at wired region during first implementation stage, and upgraded new PKM and link layer security are applied at the wireless region network, along with ISAC, IDS/IPS at the wired region during second and third implementation stage