User's Manual

Mobile WiMAX Outdoor RAS SPI-2210 System Description/Ed.05

The RAS performs the Service Flow Management (SFM) function to create/change/release

connections for each Service Flow (SF) and the admission control function while

creating/changing connections. In regard to the SFM function of the RAS, the ACR carries

out the SF Authentication (SFA) and SFID management functions. The ACR carries out the

SFA function to obtain the QoS information from Policy Function (PF) and apply it in the

SF creation and performs the SFID management function to create/change/release SFID

and map SF according to the packet classification.

In handover, the RAS performs the handover control function to determine the execution of

the handover and deal with corresponding handover signaling. The ACR confirms the

neighbor BS list and relays the handover signaling message to the target system.

At this time, the ACR and the RAS carries out the context function to exchange the context

information between the target system and the serving system.

The RAS provides admission control to collect/manage the MS's radio resource

information and the RAS's own radio resource information (e.g., BSID). When load

balancing is required based on admission control results, it performs resource management

through FA overriding and BS init HO (Handover).

ASN System Function

For the detailed description about the RAS functions, refer to Chapter 2 of this

system description. For the description about the ACR functions, refer to the

system description for ACR provided by Samsung.