|
T3210/T3211
T3210 and T3211 is timer that is related to Location Updating process. The function of these timers are defined in 24.008 as follows.
< Table 11.1/3GPP TS 24.008: Mobility management timers - MS-side >
If I represent into sequence diagram, it can be as follows.
Example 1 >
|
Step
|
Direction
|
Message
|
Comment
|
|
1
|
UE -> NW
|
Channel Request/Handover Access
|
|
|
2
|
UE <- NW
|
Immediate Assignment
|
|
|
3
|
UE -> NW
|
Location Updating Request
|
T3210 Start on UE
|
|
4
|
UE <- NW
|
Identity Request
|
|
|
5
|
UE -> NW
|
Identity Response
|
|
|
6
|
NW
|
< Do not send Location Updating >
|
|
|
7
|
UE
|
|
20 sec elapsed since step 3
|
|
8
|
UE
|
|
T3210 expire/T3211 Start
|
|
9
|
UE
|
|
15 sec elapsed since step 8
|
|
10
|
|
|
T3211 Exipires
|
|
11
|
UE -> NW
|
Channel Request/Handover Access
|
|
|
12
|
UE <-> NW
|
< Normal Location Updating >
|
|
|