User's Manual

Mobile WiMAX RAS SPI-2L10 System Description/Ed.00

4-25

Category Description

(1)~(3) When the MS in Awake mode is turned off, the MS sends the RAS the DREG-REQ

message containing ‘Deregistration code=0,’ and the RAS notifies the ACR of this.

(4)

The ACR performs the procedure for releasing the MIP-related information with the HA.

(5)~(6) The ACR notifies the RAS of the result for the power down of the MS, and releases

the data path.

(7)~(10) The ACR updates the final accounting information for the MS in interoperation with

the AAA server. If the Diameter protocol is used as the AAA protocol, the S-ACR

performs the session release procedure with the AAA server. However, when the

RADIUS protocol is used, only the Accounting Request stop procedure and the

Accounting Response stop procedure are processed and the STR/STA procedure is

omitted.

Disconnection (Idle Mode)

The figure below shows the procedure with which the MS in Idle mode is disconnected

because the power is turned off.

Figure 4.16 Disconnection (Idle Mode)

Category Description

(1)~(5) When the MS in Idle mode is turned off, the MS sends the RAS the RNG-REQ

message containing the power down indicator, and the RAS notifies the ACR of this.

The ACR deletes the information for the MS.

(6)

The ACR performs the procedure for releasing the MIP-related information with the HA.

(7)~(8) If the Diameter protocol is used as the AAA protocol, the S-ACR performs the session

release procedure with the AAA server. However, when the RADIUS protocol is used,

only the Accounting Request stop and Accounting Response stop operations are

performed, instead of the STR/STA process.

RAS ACR

1) RNG-REQ

(Location Update Request,

Paging Controller ID)

2) LU Request

4) RNG-RSP

(Location Update Response)

3) LU Response

5) LU Confirm

AAA

6) MIP release

7) Diameter: STR/RADIUS: Accounting Request stop

8) Diameter: STA/RADIUS: Accounting Response stop