User's Manual

CHAPTER 4. Message Flow

4-8

(Continued)

Classification Description

(6)~(8) If the Network re-entry from the MS is not transmitted until the Idle Resource Retain

timer expires, the RAS performs the Data Path (DP) Release procedure with the

ACR.

(9)~(10) As the MS status is changed to Idle Mode, the RAS notifies the charging termination

message to the AAA server and updates the charging information in the AAA server.

Awake Mode Æ Sleep Mode

The Awake Mode and the Sleep Mode of the MS can be classified only by the RAS, and

the ACR does not classify the two kinds of status, and recognizes and manages both of

them as the Awake Mode.

Figure 4.5 Awake Mode Q Sleep Mode Status Change Procedure

Classification Description

(1)~(2) If the MS does not transmit/receive the data for a certain time (set by the MS/RAS as

the parameter), timeout is generated in its own timer, and thus the mode is changed

from the Awake Mode to the Sleep Mode. Then, the MS transmits the MOB_SLP-

REQ message to the RAS, and the RAS transmits the MOB_SLP-RSP message for

this, and the status of MS is changed into the Sleep Mode.

(3)~(4) If the terminating traffic exists in the Sleep Mode MS, the RAS transmits the

MOB_TRF-IND message in the listening period of the corresponding MS, and the

MS which receives this, sets the BW value as 0 in the UL BW Request and transmits

it to the RAS. The RAS receives this message and recognizes that the status of MS

has been changed into the Awake Mode, and transmits the traffic to the MS.

MS RAS ACR

2) MOB_SLP-RSP

1) MOB_SLP-REQ

Awake

Sleep

3) MOB_TRF-IND

4) BW Request Header

Awake

DL Traffic