Samsung Mobile WiMAX Outdoor RAS SPI-2331, Описание системы

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CHAPTER 4. Message Flow
4-14 © SAMSUNG Electronics Co., Ltd.
4.1.5 Paging
Paging can be classified into the following two types.
y
The RAS broadcasts the MOB_PAG-ADV message periodically and notifies the MS
of the corresponding paging group. The MS is changed into the Idle Mode and checks
if the paging group of the MS is changed by checking the MOB_PAG-ADV message
periodically based on the paging information(Paging Cycle, Paging Offset, PGID)
received from the system.
y
If the traffic to be transmitted to the Idle Mode MS exists in the ACR, the ACR
triggers the MOB_PAG-ADV message to the RAS to change the corresponding MS
into the Awake Mode.
The following figure is the procedure to perform paging on the Idle Mode MS.
Figure 4.9 Paging Procedure
Classification Description
(1)~(2) When receiving the packet to be transmitted to the specific MS, the ACR
transmits the MS Paging Announce message including the MAC address, the
Paging Group ID and the Action Code(0x10) of the MS when the corresponding
MS is the Idle Mode to the RAS. The RAS transmits the MOB_PAG-ADV
message including the information received from the ACR to the MS.
After this, the MS performs the QCS procedure with the network. For the information on
the QCS procedure, see the procedure of ‘Idle Mode
Æ
Awake Mode’ in ‘4.1.3’.
MS RAS ACR
1) MS Paging Announcement
2) MOB PAG-ADV
QCS
Incoming traffic