T3302
T3302 is timer that is related to GPRS Attach process. The function of these timers are defined in 24.008 as follows.
< Table 11.3a/3GPP TS 24.008: GPRS 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 |
< Complete Location Update > |
|
|
2 |
UE -> NW |
Channel Request/Handover Access |
|
|
3 |
UE <- NW |
Immediate Assignment |
|
|
4 |
UE -> NW |
Attach Request |
|
|
5 |
UE <- NW |
Attach Reject (Cause #17) |
1st Reject |
|
6 |
UE -> NW |
Channel Request/Handover Access |
|
|
7 |
UE <- NW |
Immediate Assignment |
|
|
8 |
UE -> NW |
Attach Request |
|
|
9 |
UE <- NW |
Attach Reject (Cause #17) |
2nd Reject |
|
10 |
UE -> NW |
Channel Request/Handover Access |
|
|
11 |
UE <- NW |
Immediate Assignment |
|
|
12 |
UE -> NW |
Attach Request |
|
|
13 |
UE <- NW |
Attach Reject (Cause #17) |
3rd Reject |
|
14 |
UE -> NW |
Channel Request/Handover Access |
|
|
15 |
UE <- NW |
Immediate Assignment |
|
|
16 |
UE -> NW |
Attach Request |
|
|
17 |
UE <- NW |
Attach Reject (Cause #17) |
4th Reject |
|
18 |
UE -> NW |
Channel Request/Handover Access |
|
|
19 |
UE <- NW |
Immediate Assignment |
|
|
20 |
UE -> NW |
Attach Request |
|
|
21 |
UE <- NW |
Attach Reject (Cause #17) |
5th Reject |
|
22 |
UE |
< Start T3302 > |
|
|
23 |
UE |
|
UE Should not Retry Attach until T3320 Expires |
|
|
|
|
|
(4)(8)(12)(16)(20)Attach Request
DLT: 147, Payload: gsm_a_dtap (GSM A-I/F DTAP)
GSM A-I/F DTAP - Attach Request
Protocol Discriminator: GPRS mobility management messages
.... 1000 = Protocol discriminator: GPRS mobility management messages (0x08)
0000 .... = Skip Indicator: No indication of selected PLMN (0)
DTAP GPRS Mobility Management Message Type: Attach Request (0x01)
MS Network Capability
Length: 1
1... .... = GEA/1: Encryption algorithm available
.1.. .... = SM capabilities via dedicated channels: Mobile station supports mobile terminated
point to point SMS via dedicated signalling channels
..1. .... = SM capabilities via GPRS channels: Mobile station supports mobile terminated
point to point SMS via GPRS packet data channels
...0 .... = UCS2 support: Mobile station does not support mobile terminated
point to point SMS via GPRS packet data channels
.... 01.. = SS Screening Indicator: capability of handling of ellipsis notation
and phase 2 error handling (0x01)
.... ..0. = SoLSA Capability: The ME does not support SoLSA
.... ...0 = Revision level indicator: Used by a mobile station not supporting R99
or later versions of the protocol
Attach Type
0000 .... = Ciphering key sequence number: 0
Attach Type
.... 0... = Follow-on request pending: False
.... .001 = Type of attach: GPRS attach (1)
DRX Parameter
DRX Parameter
Split PG Cycle Code: Reserved, interpreted as 1 (10)
0000 .... = CN Specific DRX cycle length coefficient: CN Specific DRX cycle length coefficient
/ value not specified by the MS (0)
.... 0... = SPLIT on CCCH: Split pg cycle on CCCH is not supported by the mobile station
.... .000 = Non-DRX timer: no non-DRX mode after transfer state (0)
Mobile Identity - IMSI (001010123456789)
Length: 8
0000 .... = Identity Digit 1: 0
.... 1... = Odd/even indication: Odd number of identity digits
.... .001 = Mobile Identity Type: IMSI (1)
BCD Digits: 001010123456789
Routing Area Identification - Old routing area identification - RAI: 450-5-0-128
Routing area identification: 450-5-0-128
Mobile Country Code (MCC): Korea (Republic of) (450)
Mobile Network Code (MNC): Unknown (05)
Location Area Code (LAC): 0x0000 (0)
Routing Area Code (RAC): 0x80 (128)
MS Radio Access Capability
Length: 11
MS RA capability 1
0001 .... = Access Technology Type: GSM E --note that GSM E covers GSM P (1)
.... 0100 001. .... = Length in bits: 0x21 (33)
...1 00.. RF Power Capability, GMSK Power Class: 2 W (33 dBm) (4)
A5 Bits: A5 bits follow (1)
A5/1: encryption algorithm available (1)
A5/2: encryption algorithm not available (0)
A5/3: encryption algorithm available (1)
A5/4: encryption algorithm not available (0)
A5/5: encryption algorithm not available (0)
A5/6: encryption algorithm not available (0)
A5/7: encryption algorithm not available (0)
.... ..1. = Controlled early Classmark Sending: Implemented
.... ...1 = Pseudo Synchronisation: Present
0... .... = Voice Group Call Service: no VGCS capability or no notifications wanted
.0.. .... = Voice Broadcast Service: no VBS capability or no notifications wanted
..1. .... = Multislot capability struct: Present
HSCSD multislot class: Bits are not available (0)
.... 0111 = SMS_VALUE (Switch-Measure-Switch): 8/4 timeslot (~1154 microseconds) (7)
0001 .... = (SM_VALUE) Switch-Measure: 2/4 timeslot (~288 microseconds) (1)
.... .011 00.. .... = GPRS multislot class: Max Rx-Slot/TDMA:4 Max Tx-Slot
/TDMA:4 Max-Sum-Slot/TDMA:5 Tta:2 Ttb:1 Tra:2 Trb:1 Type:1 (12)
..1. .... = GPRS Extended Dynamic Allocation Capability: Implemented
MS RA capability 2
.... .001 1... .... = Access Technology Type: GSM 1800 (3)
.001 1010 = Length in bits: 0x1a (26)
001. .... RF Power Capability, GMSK Power Class: 1 W (30 dBm) (1)
A5 Bits: Same values apply for parameters as in the immediately
preceding Access capabilities field within this IE (0)
.... 1... = Controlled early Classmark Sending: Implemented
.... .1.. = Pseudo Synchronisation: Present
.... ..0. = Voice Group Call Service: no VGCS capability or no notifications wanted
.... ...0 = Voice Broadcast Service: no VBS capability or no notifications wanted
1... .... = Multislot capability struct: Present
HSCSD multislot class: Bits are not available (0)
..01 11.. = SMS_VALUE (Switch-Measure-Switch): 8/4 timeslot (~1154 microseconds) (7)
.... ..00 01.. .... = (SM_VALUE) Switch-Measure: 2/4 timeslot (~288 microseconds) (1)
...0 1100 = GPRS multislot class: Max Rx-Slot/TDMA:4 Max Tx-Slot/TDMA:4 Max-Sum-Slot
/TDMA:5 Tta:2 Ttb:1 Tra:2 Trb:1 Type:1 (12)
1... .... = GPRS Extended Dynamic Allocation Capability: Implemented
GPRS Timer - Ready Timer
Element ID: 0x17
GPRS Timer: 10 sec
000. .... = Unit: value is incremented in multiples of 2 seconds (0)
...0 0101 = Timer value: 5
UE network capability
Element ID: 0x58
Length: 4
1... .... = EEA0: Supported
.1.. .... = 128-EEA1: Supported
..1. .... = 128-EEA2: Supported
...0 .... = 128-EEA3: Not Supported
.... 0... = EEA4: Not Supported
.... .0.. = EEA5: Not Supported
.... ..0. = EEA6: Not Supported
.... ...0 = EEA7: Not Supported
0... .... = EIA0: Not Supported
.1.. .... = 128-EIA1: Supported
..1. .... = 128-EIA2: Supported
...0 .... = 128-EIA3: Not Supported
.... 0... = EIA4: Not Supported
.... .0.. = EIA5: Not Supported
.... ..0. = EIA6: Not Supported
.... ...0 = EIA7: Not Supported
1... .... = UEA0: Supported
.1.. .... = UEA1: Supported
..0. .... = UEA2: Not Supported
...0 .... = UEA3: Not Supported
.... 0... = UEA4: Not Supported
.... .0.. = UEA5: Not Supported
.... ..0. = UEA6: Not Supported
.... ...0 = UEA7: Not Supported
0... .... = UCS2 support (UCS2): The UE has a preference for the default alphabet
.1.. .... = UMTS integrity algorithm UIA1: Supported
..0. .... = UMTS integrity algorithm UIA2: Not Supported
...0 .... = UMTS integrity algorithm UIA3: Not Supported
.... 0... = UMTS integrity algorithm UIA4: Not Supported
.... .0.. = UMTS integrity algorithm UIA5: Not Supported
.... ..0. = UMTS integrity algorithm UIA6: Not Supported
.... ...0 = UMTS integrity algorithm UIA7: Not Supported
Voice domain preference and UE's usage setting
Element ID: 0x5d
Length: 1
0000 0... = Spare bit(s): 0
.... .0.. = UE's usage setting: Voice centric
.... ..01 = Voice domain preference for E-UTRAN: IMS PS Voice only (1)
(5)(9)(13)(17)(21)Attach Request
DLT: 147, Payload: gsm_a_dtap (GSM A-I/F DTAP)
GSM A-I/F DTAP - Attach Reject
Protocol Discriminator: GPRS mobility management messages
.... 1000 = Protocol discriminator: GPRS mobility management messages (0x08)
0000 .... = Skip Indicator: No indication of selected PLMN (0)
DTAP GPRS Mobility Management Message Type: Attach Reject (0x04)
GMM Cause
GMM Cause: Network failure (17)