Samsung Mobile WiMAX Outdoor RAS SPI-2331 System Description page 17

CHAPTER 1. Overview of Mobile WiMAX System
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 performs the Radio Resource Control(RRC) and RR Agent(RRA) functions to
collect/manage the radio resource information(e.g., BSID) from MSs and the RAS itself.
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.
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