Samsung Mobile WiMAX Outdoor RAS SPI-2331, System Description

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CHAPTER 4. Message Flow
4-20 © SAMSUNG Electronics Co., Ltd.
4.1.7 Access Termination
Access Termination (Awake Mode)
The following is the procedure that the access is terminated because the power of the
Awake Mode MS is turned off.
Figure 4.13 Access Termination (Awake Mode)
Classification Description
(1)~(3) If the power of the Awake Mode MS is turned off, the MS transmits the DREG-REQ
message including ‘Deregistration code=0’ to the RAS, and the RAS notifies the
ACR of this.
(4) ACR release the MIP related information with HA.
(5)~(6) The ACR notifies the RAS of the result of power down processing, and release
the data path.
(7)~(10) The S-ACR updates the information on interworking with the AAA server and the
final accounting information of MS. Diameter is applied to AAA protocol, S-ACR
performs the session termination procedure.
MS RAS ACR
AAA
1) DREG-REQ
(ReqCode: 0)
3) Path Deregistration Request
7) ACR
2) DREG-CMD
(ActionCode: 4)
(Power Down Indication)
8) ACA
5) Path Deregistration Response
6) Path Deregistration Ack
9) STR
10) STA
HA
4) MIP release