LTE NAS description

Non Access Stratum protocol for Evolved Packet System (EPS)

24.301 v16.4.0

Control plane between UE and MME at the radio interface


§9.8 EPS mobility management messages
Increasing message type
Message type Direction Message Reference
0x41 65 to Network Attach request 8.2.4
0x42 66 to UE Attach accept 8.2.1
0x43 67 to Network Attach complete 8.2.2
0x44 68 to UE Attach reject 8.2.3
0x45 69 to UE Detach request (UE terminated detach) 8.2.11.2
0x45 69 to Network Detach request (UE originating detach) 8.2.11.1
0x46 70 to UE Detach accept (UE originating detach) 8.2.10.1
0x46 70 to Network Detach accept (UE terminated detach) 8.2.10.2
0x48 72 to Network Tracking area update request 8.2.29
0x49 73 to UE Tracking area update accept 8.2.26
0x4a 74 to Network Tracking area update complete 8.2.27
0x4b 75 to UE Tracking area update reject 8.2.28
0x4c 76 to Network Extended service request 8.2.15
0x4d 77 to Network Control plane service request 8.2.33
0x4e 78 to UE Service reject 8.2.24
0x4f 79 to UE Service accept 8.2.34
0x50 80 to UE GUTI reallocation command 8.2.16
0x51 81 to Network GUTI reallocation complete 8.2.17
0x52 82 to UE Authentication request 8.2.7
0x53 83 to Network Authentication response 8.2.8
0x54 84 to UE Authentication reject 8.2.6
0x55 85 to UE Identity request 8.2.18
0x56 86 to Network Identity response 8.2.19
0x5c 92 to Network Authentication failure 8.2.5
0x5d 93 to UE Security mode command 8.2.20
0x5e 94 to Network Security mode complete 8.2.21
0x5f 95 to Network Security mode reject 8.2.22
0x60 96 both EMM status 8.2.14
0x61 97 to UE EMM information 8.2.13
0x62 98 to UE Downlink NAS transport 8.2.12
0x63 99 to Network Uplink NAS transport 8.2.30
0x64 100 to UE CS Service notification 8.2.9
0x68 104 to UE Downlink generic NAS transport 8.2.31
0x69 105 to Network Uplink generic NAS transport 8.2.32
0xff 255 to Network Service request 8.2.25
Nb = 35

§9.8 EPS session management messages
Increasing message type
Message type Direction Message Reference
0xc1 193 to UE Activate default EPS bearer context request 8.3.6
0xc2 194 to Network Activate default EPS bearer context accept 8.3.4
0xc3 195 to Network Activate default EPS bearer context reject 8.3.5
0xc5 197 to UE Activate dedicated EPS bearer context request 8.3.3
0xc6 198 to Network Activate dedicated EPS bearer context accept 8.3.1
0xc7 199 to Network Activate dedicated EPS bearer context reject 8.3.2
0xc9 201 to UE Modify EPS bearer context request 8.3.18
0xca 202 to Network Modify EPS bearer context accept 8.3.16
0xcb 203 to Network Modify EPS bearer context reject 8.3.17
0xcd 205 to UE Deactivate EPS bearer context request 8.3.12
0xce 206 to Network Deactivate EPS bearer context accept 8.3.11
0xd0 208 to Network PDN connectivity request 8.3.20
0xd1 209 to UE PDN connectivity reject 8.3.19
0xd2 210 to Network PDN disconnect request 8.3.22
0xd3 211 to UE PDN disconnect reject 8.3.21
0xd4 212 to Network Bearer resource allocation request 8.3.8
0xd5 213 to UE Bearer resource allocation reject 8.3.7
0xd6 214 to Network Bearer resource modification request 8.3.10
0xd7 215 to UE Bearer resource modification reject 8.3.9
0xd9 217 to UE ESM information request 8.3.13
0xda 218 to Network ESM information response 8.3.14
0xdb 219 to UE Notification 8.3.18A
0xdc 220 both ESM dummy message 8.3.12A
0xe8 232 both ESM status 8.3.15
0xe9 233 to Network Remote UE report 8.3.23
0xea 234 to UE Remote UE report response 8.3.24
0xeb 235 both ESM data transport 8.3.25
Nb = 27

Presence (24.007)

M
Mandatory
O
Optional
C
Conditional

Total length X,Y-Z

X
Minimum length with mandatory IEI only
Y
Minimum length with all IEIs
Z
Maximum length with all IEIs

EPS mobility management message

8.2.1 Attach accept

IEI Information Element Type/Reference Presence Format Length
Protocol discriminator Protocol discriminator
9.2
M V 1/2
Security header type Security header type
9.3.1
M V 1/2
Attach accept message identity Message type
9.8
M V 1
EPS attach result EPS attach result
9.9.3.10
M V 1/2
Spare half octet Spare half octet
9.9.2.9
M V 1/2
T3412 value GPRS timer
9.9.3.16
M V 1
TAI list Tracking area identity list
9.9.3.33
M LV 7-97
ESM message container ESM message container
9.9.3.15
M LV-E 5-n
50 GUTI EPS mobile identity
9.9.3.12
O TLV 13
13 Location area identification Location area identification
9.9.2.2
O TV 6
23 MS identity Mobile identity
9.9.2.3
O TLV 7-10
53 EMM cause EMM cause
9.9.3.9
O TV 2
17 T3402 value GPRS timer
9.9.3.16
O TV 2
59 T3423 value GPRS timer
9.9.3.16
O TV 2
4A Equivalent PLMNs PLMN list
9.9.2.8
O TLV 5-47
34 Emergency number list Emergency number list
9.9.3.37
O TLV 5-50
64 EPS network feature support EPS network feature support
9.9.3.12A
O TLV 3
F- Additional update result Additional update result
9.9.3.0A
O TV 1
5E T3412 extended value GPRS timer 3
9.9.3.16B
O TLV 3
Nb IEI = 19 M = 8, O = 1116,65-n

8.2.2 Attach complete

IEI Information Element Type/Reference Presence Format Length
Protocol discriminator Protocol discriminator
9.2
M V 1/2
Security header type Security header type
9.3.1
M V 1/2
Attach complete message identity Message type
9.8
M V 1
ESM message container ESM message container
9.9.3.15
M LV-E 5-n
Nb IEI = 4 M = 47-n

8.2.3 Attach reject

IEI Information Element Type/Reference Presence Format Length
Protocol discriminator Protocol discriminator
9.2
M V 1/2
Security header type Security header type
9.3.1
M V 1/2
Attach reject message identity Message type
9.8
M V 1
EMM cause EMM cause
9.9.3.9
M V 1
78 ESM message container ESM message container
9.9.3.15
O TLV-E 6-n
5F T3346 value GPRS timer 2
9.9.3.16A
O TLV 3
16 T3402 value GPRS timer 2
9.9.3.16A
O TLV 3
Nb IEI = 7 M = 4, O = 33,15-n

8.2.4 Attach request

IEI Information Element Type/Reference Presence Format Length
Protocol discriminator Protocol discriminator
9.2
M V 1/2
Security header type Security header type
9.3.1
M V 1/2
Attach request message identity Message type
9.8
M V 1
EPS attach type EPS attach type
9.9.3.11
M V 1/2
NAS key set identifier NAS key set identifier
9.9.3.21
M V 1/2
EPS mobile identity EPS mobile identity
9.9.3.12
M LV 5-12
UE network capability UE network capability
9.9.3.34
M LV 3-14
ESM message container ESM message container
9.9.3.15
M LV-E 5-n
19 Old P-TMSI signature P-TMSI signature
9.9.3.26
O TV 4
50 Additional GUTI EPS mobile identity
9.9.3.12
O TLV 13
52 Last visited registered TAI Tracking area identity
9.9.3.32
O TV 6
5C DRX parameter DRX parameter
9.9.3.8
O TV 3
31 MS network capability MS network capability
9.9.3.20
O TLV 4-10
13 Old location area identification Location area identification
9.9.2.2
O TV 6
9- TMSI status TMSI status
9.9.3.31
O TV 1
11 Mobile station classmark 2 Mobile station classmark 2
9.9.2.4
O TLV 5
20 Mobile station classmark 3 Mobile station classmark 3
9.9.2.5
O TLV 2-34
40 Supported Codecs Supported Codec List
9.9.2.10
O TLV 5-n
F- Additional update type Additional update type
9.9.3.0B
O TV 1
5D Voice domain preference and UE's usage setting Voice domain preference and UE's usage setting
9.9.3.44
O TLV 3
D- Device properties Device properties
9.9.2.0A
O TV 1
E- Old GUTI type GUTI type
9.9.3.45
O TV 1
C- MS network feature support MS network feature support
9.9.3.20A
O TV 1
10 TMSI based NRI container Network resource identifier container
9.9.3.24A
O TLV 4
Nb IEI = 24 M = 8, O = 1616,76-n

8.2.5 Authentication failure

IEI Information Element Type/Reference Presence Format Length
Protocol discriminator Protocol discriminator
9.2
M V 1/2
Security header type Security header type
9.3.1
M V 1/2
Authentication failure message type Message type
9.8
M V 1
EMM cause EMM cause
9.9.3.9
M V 1
30 Authentication failure parameter Authentication failure parameter
9.9.3.1
O TLV 16
Nb IEI = 5 M = 4, O = 13,19-19

8.2.6 Authentication reject

IEI Information Element Type/Reference Presence Format Length
Protocol discriminator Protocol discriminator
9.2
M V 1/2
Security header type Security header type
9.3.1
M V 1/2
Authentication reject message type Message type
9.8
M V 1
Nb IEI = 3 M = 32

8.2.7 Authentication request

IEI Information Element Type/Reference Presence Format Length
Protocol discriminator Protocol discriminator
9.2
M V 1/2
Security header type Security header type
9.3.1
M V 1/2
Authentication request message type Message type
9.8
M V 1
NAS key set identifier ASME NAS key set identifier
9.9.3.21
M V 1/2
Spare half octet Spare half octet
9.9.2.9
M V 1/2
Authentication parameter RAND (EPS challenge) Authentication parameter RAND
9.9.3.3
M V 16
Authentication parameter AUTN (EPS challenge) Authentication parameter AUTN
9.9.3.2
M LV 17
Nb IEI = 7 M = 736

8.2.8 Authentication response

IEI Information Element Type/Reference Presence Format Length
Protocol discriminator Protocol discriminator
9.2
M V 1/2
Security header type Security header type
9.3.1
M V 1/2
Authentication response message type Message type
9.8
M V 1
Authentication response parameter Authentication response parameter
9.9.3.4
M LV 5-17
Nb IEI = 4 M = 47-19

8.2.9 CS service notification

IEI Information Element Type/Reference Presence Format Length
Protocol discriminator Protocol discriminator
9.2
M V 1/2
Security header type Security header type
9.3.1
M V 1/2
CS service notification message identity Message type
9.8
M V 1
Paging identity Paging identity
9.9.3.25A
M V 1
60 CLI CLI
9.9.3.38
O TLV 3-14
61 SS Code SS Code
9.9.3.39
O TV 2
62 LCS indicator LCS indicator
9.9.3.40
O TV 2
63 LCS client identity LCS client identity
9.9.3.41
O TLV 3-257
Nb IEI = 8 M = 4, O = 43,13-278

8.2.10.1 Detach accept (UE originating detach)

IEI Information Element Type/Reference Presence Format Length
Protocol discriminator Protocol discriminator
9.2
M V 1/2
Security header type Security header type
9.3.1
M V 1/2
Detach accept message identity Message type
9.8
M V 1
Nb IEI = 3 M = 32

8.2.10.2 Detach accept (UE terminated detach)

IEI Information Element Type/Reference Presence Format Length
Protocol discriminator Protocol discriminator
9.2
M V 1/2
Security header type Security header type
9.3.1
M V 1/2
Detach accept message identity Message type
9.8
M V 1
Nb IEI = 3 M = 32

8.2.11.1 Detach request (UE originating detach)

IEI Information Element Type/Reference Presence Format Length
Protocol discriminator Protocol discriminator
9.2
M V 1/2
Security header type Security header type
9.3.1
M V 1/2
Detach request message identity Message type
9.8
M V 1
Detach type Detach type
9.9.3.7
M V 1/2
NAS key set identifier NAS key set identifier
9.9.3.21
M V 1/2
EPS mobile identity EPS mobile identity
9.9.3.12
M LV 5-12
Nb IEI = 6 M = 68-15

8.2.11.2 Detach request (UE terminated detach)

IEI Information Element Type/Reference Presence Format Length
Protocol discriminator Protocol discriminator
9.2
M V 1/2
Security header type Security header type
9.3.1
M V 1/2
Detach request message identity Message type
9.8
M V 1
Detach type Detach type
9.9.3.7
M V 1/2
Spare half octet Spare half octet
9.9.2.9
M V 1/2
53 EMM cause EMM cause
9.9.3.9
O TV 2
Nb IEI = 6 M = 5, O = 13,5-5

8.2.12 Downlink NAS Transport

IEI Information Element Type/Reference Presence Format Length
Protocol discriminator Protocol discriminator
9.2
M V 1/2
Security header type Security header type
9.3.1
M V 1/2
Downlink NAS transport message identity Message type
9.8
M V 1
NAS message container NAS message container
9.9.3.22
M LV 3-252
Nb IEI = 4 M = 45-254

8.2.13 EMM information

IEI Information Element Type/Reference Presence Format Length
Protocol discriminator Protocol discriminator
9.2
M V 1/2
Security header type Security header type
9.3.1
M V 1/2
EMM information message identity Message type
9.8
M V 1
43 Full name for network Network name
9.9.3.24
O TLV 3-n
45 Short name for network Network name
9.9.3.24
O TLV 3-n
46 Local time zone Time zone
9.9.3.29
O TV 2
47 Universal time and local time zone Time zone and time
9.9.3.30
O TV 8
49 Network daylight saving time Daylight saving time
9.9.3.6
O TLV 3
Nb IEI = 8 M = 3, O = 52,21-n

8.2.14 EMM status

IEI Information Element Type/Reference Presence Format Length
Protocol discriminator Protocol discriminator
9.2
M V 1/2
Security header type Security header type
9.3.1
M V 1/2
EMM status message identity Message type
9.8
M V 1
EMM cause EMM cause
9.9.3.9
M V 1
Nb IEI = 4 M = 43

8.2.15 Extended service request

IEI Information Element Type/Reference Presence Format Length
Protocol discriminator Protocol discriminator
9.2
M V 1/2
Security header type Security header type
9.3.1
M V 1/2
Extended service request message identity Message type
9.8
M V 1
Service type Service type
9.9.3.27
M V 1/2
NAS key set identifier NAS key set identifier
9.9.3.21
M V 1/2
M-TMSI Mobile identity
9.9.2.3
M LV 6
B- CSFB response CSFB response
9.9.3.5
C TV 1
57 EPS bearer context status EPS bearer context status
9.9.2.1
O TLV 4
D- Device properties Device properties
9.9.2.0A
O TV 1
Nb IEI = 9 M = 6, C = 1, O = 29,15-15

8.2.16 GUTI reallocation command

IEI Information Element Type/Reference Presence Format Length
Protocol discriminator Protocol discriminator
9.2
M V 1/2
Security header type Security header type
9.3.1
M V 1/2
GUTI reallocation command message identity Message type
9.8
M V 1
GUTI EPS mobile identity
9.9.3.12
M LV 12
54 TAI list Tracking area identity list
9.9.3.33
O TLV 8-98
Nb IEI = 5 M = 4, O = 114,22-112

8.2.17 GUTI reallocation complete

IEI Information Element Type/Reference Presence Format Length
Protocol discriminator Protocol discriminator
9.2
M V 1/2
Security header type Security header type
9.3.1
M V 1/2
GUTI reallocation complete message identity Message type
9.8
M V 1
Nb IEI = 3 M = 32

8.2.18 Identity request

IEI Information Element Type/Reference Presence Format Length
Protocol discriminator Protocol discriminator
9.2
M V 1/2
Security header type Security header type
9.3.1
M V 1/2
Identity request message identity Message type
9.8
M V 1
Identity type Identity type 2
9.9.3.17
M V 1/2
Spare half octet Spare half octet
9.9.2.9
M V 1/2
Nb IEI = 5 M = 53

8.2.19 Identity response

IEI Information Element Type/Reference Presence Format Length
Protocol discriminator Protocol discriminator
9.2
M V 1/2
Security header type Security header type
9.3.1
M V 1/2
Identity response message Message type
9.8
M V 1
Mobile identity Mobile identity
9.9.2.3
M LV 4-10
Nb IEI = 4 M = 46-12

8.2.20 Security mode command

IEI Information Element Type/Reference Presence Format Length
Protocol discriminator Protocol discriminator
9.2
M V 1/2
Security header type Security header type
9.3.1
M V 1/2
Security mode command message identity Message type
9.8
M V 1
Selected NAS security algorithms NAS security algorithms
9.9.3.23
M V 1
NAS key set identifier NAS key set identifier
9.9.3.21
M V 1/2
Spare half octet Spare half octet
9.9.2.9
M V 1/2
Replayed UE security capabilities UE security capability
9.9.3.36
M LV 3-6
C- IMEISV request IMEISV request
9.9.3.18
O TV 1
55 Replayed nonce UE Nonce
9.9.3.25
O TV 5
56 Nonce MME Nonce
9.9.3.25
O TV 5
Nb IEI = 10 M = 7, O = 37,18-21

8.2.21 Security mode complete

IEI Information Element Type/Reference Presence Format Length
Protocol discriminator Protocol discriminator
9.2
M V 1/2
Security header type Security header type
9.3.1
M V 1/2
Security mode complete message identity Message type
9.8
M V 1
23 IMEISV Mobile identity
9.9.2.3
O TLV 11
Nb IEI = 4 M = 3, O = 12,13-13

8.2.22 Security mode reject

IEI Information Element Type/Reference Presence Format Length
Protocol discriminator Protocol discriminator
9.2
M V 1/2
Security header type Security header type
9.3.1
M V 1/2
Security mode reject message identity Message type
9.8
M V 1
EMM cause EMM cause
9.9.3.9
M V 1
Nb IEI = 4 M = 43

8.2.23 Security protected NAS message

IEI Information Element Type/Reference Presence Format Length
Protocol discriminator Protocol discriminator
9.2
M V 1/2
Security header type Security header type
9.3.1
M V 1/2
Message authentication code Message authentication code
9.5
M V 4
Sequence number Sequence number
9.6
M V 1
NAS message NAS message
9.7
M V 1-n
Nb IEI = 5 M = 57-n

8.2.24 Service reject

IEI Information Element Type/Reference Presence Format Length
Protocol discriminator Protocol discriminator
9.2
M V 1/2
Security header type Security header type
9.3.1
M V 1/2
Service reject message identity Message type
9.8
M V 1
EMM cause EMM cause
9.9.3.9
M V 1
5B T3442 value GPRS timer
9.9.3.16
C TV 2
5F T3346 value GPRS timer 2
9.9.3.16A
O TLV 3
Nb IEI = 6 M = 4, C = 1, O = 13,8-8

8.2.25 Service request

IEI Information Element Type/Reference Presence Format Length
Protocol discriminator Protocol discriminator
9.2
M V 1/2
Security header type Security header type
9.3.1
M V 1/2
KSI and sequence number KSI and sequence number
9.9.3.19
M V 1
Message authentication code (short) Short MAC
9.9.3.28
M V 2
Nb IEI = 4 M = 44

8.2.26 Tracking area update accept

IEI Information Element Type/Reference Presence Format Length
Protocol discriminator Protocol discriminator
9.2
M V 1/2
Security header type Security header type
9.3.1
M V 1/2
Tracking area update accept message identity Message type
9.8
M V 1
EPS update result EPS update result
9.9.3.13
M V 1/2
Spare half octet Spare half octet
9.9.2.9
M V 1/2
5A T3412 value GPRS timer
9.9.3.16
O TV 2
50 GUTI EPS mobile identity
9.9.3.12
O TLV 13
54 TAI list Tracking area identity list
9.9.3.33
O TLV 8-98
57 EPS bearer context status EPS bearer context status
9.9.2.1
O TLV 4
13 Location area identification Location area identification
9.9.2.2
O TV 6
23 MS identity Mobile identity
9.9.2.3
O TLV 7-10
53 EMM cause EMM cause
9.9.3.9
O TV 2
17 T3402 value GPRS timer
9.9.3.16
O TV 2
59 T3423 value GPRS timer
9.9.3.16
O TV 2
4A Equivalent PLMNs PLMN list
9.9.2.8
O TLV 5-47
34 Emergency number list Emergency number list
9.9.3.37
O TLV 5-50
64 EPS network feature support EPS network feature support
9.9.3.12A
O TLV 3
F- Additional update result Additional update result
9.9.3.0A
O TV 1
5E T3412 extended value GPRS timer 3
9.9.3.16B
O TLV 3
Nb IEI = 19 M = 5, O = 143,66-246

8.2.27 Tracking area update complete

IEI Information Element Type/Reference Presence Format Length
Protocol discriminator Protocol discriminator
9.2
M V 1/2
Security header type Security header type
9.3.1
M V 1/2
Tracking area update complete message identity Message type
9.8
M V 1
Nb IEI = 3 M = 32

8.2.28 Tracking area update reject

IEI Information Element Type/Reference Presence Format Length
Protocol discriminator Protocol discriminator
9.2
M V 1/2
Security header type Security header type
9.3.1
M V 1/2
message identity Message type
9.8
M V 1
EMM cause EMM cause
9.9.3.9
M V 1
5F T3346 value GPRS timer 2
9.9.3.16A
O TLV 3
Nb IEI = 5 M = 4, O = 13,6-6

8.2.29 Tracking area update request

IEI Information Element Type/Reference Presence Format Length
Protocol discriminator Protocol discriminator
9.2
M V 1/2
Security header type Security header type
9.3.1
M V 1/2
Tracking area update request message identity Message type
9.8
M V 1
EPS update type EPS update type
9.9.3.14
M V 1/2
NAS key set identifier NAS key set identifier
9.9.3.21
M V 1/2
Old GUTI EPS mobile identity
9.9.3.12
M LV 12
B- Non-current native NAS key set identifier NAS key set identifier
9.9.3.21
O TV 1
8- GPRS ciphering key sequence number Ciphering key sequence number
9.9.3.4a
O TV 1
19 Old P-TMSI signature P-TMSI signature
9.9.3.26
O TV 4
50 Additional GUTI EPS mobile identity
9.9.3.12
O TLV 13
55 NonceUE Nonce
9.9.3.25
O TV 5
58 UE network capability UE network capability
9.9.3.34
O TLV 4-15
52 Last visited registered TAI Tracking area identity
9.9.3.32
O TV 6
5C DRX parameter DRX parameter
9.9.3.8
O TV 3
A- UE radio capability information update needed UE radio capability information update needed
9.9.3.35
O TV 1
57 EPS bearer context status EPS bearer context status
9.9.2.1
O TLV 4
31 MS network capability MS network capability
9.9.3.20
O TLV 4-10
13 Old location area identification Location area identification
9.9.2.2
O TV 6
9- TMSI status TMSI status
9.9.3.31
O TV 1
11 Mobile station classmark 2 Mobile station classmark 2
9.9.2.4
O TLV 5
20 Mobile station classmark 3 Mobile station classmark 3
9.9.2.5
O TLV 2-34
40 Supported Codecs Supported Codec List
9.9.2.10
O TLV 5-n
F- Additional update type Additional update type
9.9.3.0B
O TV 1
5D Voice domain preference and UE's usage setting Voice domain preference and UE's usage setting
9.9.3.44
O TLV 3
E- Old GUTI type GUTI type
9.9.3.45
O TV 1
D- Device properties Device properties
9.9.2.0A
O TV 1
C- MS network feature support MS network feature support
9.9.3.20A
O TV 1
10 TMSI based NRI container Network resource identifier container
9.9.3.24A
O TLV 4
Nb IEI = 28 M = 6, O = 2215,91-n

8.2.30 Uplink NAS Transport

IEI Information Element Type/Reference Presence Format Length
Protocol discriminator Protocol discriminator
9.2
M V 1/2
Security header type Security header type
9.3.1
M V 1/2
Uplink NAS transport message identity Message type
9.8
M V 1
NAS message container NAS message container
9.9.3.22
M LV 3-252
Nb IEI = 4 M = 45-254

8.2.31 Downlink generic NAS transport

IEI Information Element Type/Reference Presence Format Length
Protocol discriminator Protocol discriminator
9.2
M V 1/2
Security header type Security header type
9.3.1
M V 1/2
Downlink generic NAS transport message identity Message type
9.8
M V 1
Generic message container type Generic message container type
9.9.3.42
M V 1
Generic message container Generic message container
9.9.3.43
M LV-E 3-n
65 Additional information Additional information
9.9.2.0
O TLV 3-n
Nb IEI = 6 M = 5, O = 16,9-n

8.2.32 Uplink generic NAS transport

IEI Information Element Type/Reference Presence Format Length
Protocol discriminator Protocol discriminator
9.2
M V 1/2
Security header type Security header type
9.3.1
M V 1/2
Uplink generic NAS transport message identity Message type
9.8
M V 1
Generic message container type Generic message container type
9.9.3.42
M V 1
Generic message container Generic message container
9.9.3.43
M LV-E 3-n
65 Additional information Additional information
9.9.2.0
O TLV 3-n
Nb IEI = 6 M = 5, O = 16,9-n

EPS session management message

8.3.1 Activate dedicated EPS bearer context accept

IEI Information Element Type/Reference Presence Format Length
Protocol discriminator Protocol discriminator
9.2
M V 1/2
EPS bearer identity EPS bearer identity
9.3.2
M V 1/2
Procedure transaction identity Procedure transaction identity
9.4
M V 1
Activate dedicated EPS bearer context accept message identity Message type
9.8
M V 1
27 Protocol configuration options Protocol configuration options
9.9.4.11
O TLV 3-253
Nb IEI = 5 M = 4, O = 13,6-256

8.3.2 Activate dedicated EPS bearer context reject

IEI Information Element Type/Reference Presence Format Length
Protocol discriminator Protocol discriminator
9.2
M V 1/2
EPS bearer identity EPS bearer identity
9.3.2
M V 1/2
Procedure transaction identity Procedure transaction identity
9.4
M V 1
Activate dedicated EPS bearer context reject message identity Message type
9.8
M V 1
ESM cause ESM cause
9.9.4.4
M V 1
27 Protocol configuration options Protocol configuration options
9.9.4.11
O TLV 3-253
Nb IEI = 6 M = 5, O = 14,7-257

8.3.3 Activate dedicated EPS bearer context request

IEI Information Element Type/Reference Presence Format Length
Protocol discriminator Protocol discriminator
9.2
M V 1/2
EPS bearer identity EPS bearer identity
9.3.2
M V 1/2
Procedure transaction identity Procedure transaction identity
9.4
M V 1
Activate dedicated EPS bearer context request message identity Message type
9.8
M V 1
Linked EPS bearer identity Linked EPS bearer identity
9.9.4.6
M V 1/2
Spare half octet Spare half octet
9.9.2.9
M V 1/2
EPS QoS EPS quality of service
9.9.4.3
M LV 2-14
TFT Traffic flow template
9.9.4.16
M LV 2-256
5D Transaction identifier Transaction identifier
9.9.4.17
O TLV 3-4
30 Negotiated QoS Quality of service
9.9.4.12
O TLV 14-22
32 Negotiated LLC SAPI LLC service access point identifier
9.9.4.7
O TV 2
8- Radio priority Radio priority
9.9.4.13
O TV 1
34 Packet flow Identifier Packet flow Identifier
9.9.4.8
O TLV 3
27 Protocol configuration options Protocol configuration options
9.9.4.11
O TLV 3-253
Nb IEI = 14 M = 8, O = 68,34-559

8.3.4 Activate default EPS bearer context accept

IEI Information Element Type/Reference Presence Format Length
Protocol discriminator Protocol discriminator
9.2
M V 1/2
EPS bearer identity EPS bearer identity
9.3.2
M V 1/2
Procedure transaction identity Procedure transaction identity
9.4
M V 1
Activate default EPS bearer context accept message identity Message type
9.8
M V 1
27 Protocol configuration options Protocol configuration options
9.9.4.11
O TLV 3-253
Nb IEI = 5 M = 4, O = 13,6-256

8.3.5 Activate default EPS bearer context reject

IEI Information Element Type/Reference Presence Format Length
Protocol discriminator Protocol discriminator
9.2
M V 1/2
EPS bearer identity EPS bearer identity
9.3.2
M V 1/2
Procedure transaction identity Procedure transaction identity
9.4
M V 1
Activate default EPS bearer context reject message identity Message type
9.8
M V 1
ESM cause ESM cause
9.9.4.4
M V 1
27 Protocol configuration options Protocol configuration options
9.9.4.11
O TLV 3-253
Nb IEI = 6 M = 5, O = 14,7-257

8.3.6 Activate default EPS bearer context request

IEI Information Element Type/Reference Presence Format Length
Protocol discriminator Protocol discriminator
9.2
M V 1/2
EPS bearer identity EPS bearer identity
9.3.2
M V 1/2
Procedure transaction identity Procedure transaction identity
9.4
M V 1
Activate default EPS bearer context request message identity Message type
9.8
M V 1
EPS QoS EPS quality of service
9.9.4.3
M LV 2-14
Access point name Access point name
9.9.4.1
M LV 2-101
PDN address PDN address
9.9.4.9
M LV 6-14
5D Transaction identifier Transaction identifier
9.9.4.17
O TLV 3-4
30 Negotiated QoS Quality of service
9.9.4.12
O TLV 14-22
32 Negotiated LLC SAPI LLC service access point identifier
9.9.4.7
O TV 2
8- Radio priority Radio priority
9.9.4.13
O TV 1
34 Packet flow Identifier Packet flow Identifier
9.9.4.8
O TLV 3
5E APN-AMBR APN aggregate maximum bit rate
9.9.4.2
O TLV 4-8
58 ESM cause ESM cause
9.9.4.4
O TV 2
27 Protocol configuration options Protocol configuration options
9.9.4.11
O TLV 3-253
B- Connectivity type Connectivity type
9.9.4.2A
O TV 1
Nb IEI = 16 M = 7, O = 913,46-428

8.3.7 Bearer resource allocation reject

IEI Information Element Type/Reference Presence Format Length
Protocol discriminator Protocol discriminator
9.2
M V 1/2
EPS bearer identity EPS bearer identity
9.3.2
M V 1/2
Procedure transaction identity Procedure transaction identity
9.4
M V 1
Bearer resource allocation reject message identity Message type
9.8
M V 1
ESM cause ESM cause
9.9.4.4
M V 1
27 Protocol configuration options Protocol configuration options
9.9.4.11
O TLV 3-253
37 T3396 value GPRS timer 3
9.9.3.16B
O TLV 3
Nb IEI = 7 M = 5, O = 24,10-260

8.3.8 Bearer resource allocation request

IEI Information Element Type/Reference Presence Format Length
Protocol discriminator Protocol discriminator
9.2
M V 1/2
EPS bearer identity EPS bearer identity
9.3.2
M V 1/2
Procedure transaction identity Procedure transaction identity
9.4
M V 1
Bearer resource allocation request message identity Message type
9.8
M V 1
Linked EPS bearer identity Linked EPS bearer identity
9.9.4.6
M V 1/2
Spare half octet Spare half octet
9.9.2.9
M V 1/2
Traffic flow aggregate Traffic flow aggregate description
9.9.4.15
M LV 2-256
Required traffic flow QoS EPS quality of service
9.9.4.3
M LV 2-14
27 Protocol configuration options Protocol configuration options
9.9.4.11
O TLV 3-253
C- Device properties Device properties
9.9.2.0A
O TV 1
Nb IEI = 10 M = 8, O = 28,12-528

8.3.9 Bearer resource modification reject

IEI Information Element Type/Reference Presence Format Length
Protocol discriminator Protocol discriminator
9.2
M V 1/2
EPS bearer identity EPS bearer identity
9.3.2
M V 1/2
Procedure transaction identity Procedure transaction identity
9.4
M V 1
Bearer resource modification reject message identity Message type
9.8
M V 1
ESM cause ESM cause
9.9.4.4
M V 1
27 Protocol configuration options Protocol configuration options
9.9.4.11
O TLV 3-253
37 T3396 value GPRS timer 3
9.9.3.16B
O TLV 3
Nb IEI = 7 M = 5, O = 24,10-260

8.3.10 Bearer resource modification request

IEI Information Element Type/Reference Presence Format Length
Protocol discriminator Protocol discriminator
9.2
M V 1/2
EPS bearer identity EPS bearer identity
9.3.2
M V 1/2
Procedure transaction identity Procedure transaction identity
9.4
M V 1
Bearer resource modification request message identity Message type
9.8
M V 1
EPS bearer identity for packet filter Linked EPS bearer identity
9.9.4.6
M V 1/2
Spare half octet Spare half octet
9.9.2.9
M V 1/2
Traffic flow aggregate Traffic flow aggregate description
9.9.4.15
M LV 2-256
5B Required traffic flow QoS EPS quality of service
9.9.4.3
O TLV 3-15
58 ESM cause ESM cause
9.9.4.4
O TV 2
27 Protocol configuration options Protocol configuration options
9.9.4.11
O TLV 3-253
C- Device properties Device properties
9.9.2.0A
O TV 1
Nb IEI = 11 M = 7, O = 46,15-531

8.3.11 Deactivate EPS bearer context accept

IEI Information Element Type/Reference Presence Format Length
Protocol discriminator Protocol discriminator
9.2
M V 1/2
EPS bearer identity EPS bearer identity
9.3.2
M V 1/2
Procedure transaction identity Procedure transaction identity
9.4
M V 1
Deactivate EPS bearer context accept message identity Message type
9.8
M V 1
27 Protocol configuration options Protocol configuration options
9.9.4.11
O TLV 3-253
Nb IEI = 5 M = 4, O = 13,6-256

8.3.12 Deactivate EPS bearer context request

IEI Information Element Type/Reference Presence Format Length
Protocol discriminator Protocol discriminator
9.2
M V 1/2
EPS bearer identity EPS bearer identity
9.3.2
M V 1/2
Procedure transaction identity Procedure transaction identity
9.4
M V 1
Deactivate EPS bearer context request message identity Message type
9.8
M V 1
ESM cause ESM cause
9.9.4.4
M V 1
27 Protocol configuration options Protocol configuration options
9.9.4.11
O TLV 3-253
37 T3396 value GPRS timer 3
9.9.3.16B
O TLV 3
Nb IEI = 7 M = 5, O = 24,10-260

8.3.13 ESM information request

IEI Information Element Type/Reference Presence Format Length
Protocol discriminator Protocol discriminator
9.2
M V 1/2
EPS bearer identity EPS bearer identity
9.3.2
M V 1/2
Procedure transaction identity Procedure transaction identity
9.4
M V 1
ESM information request message identity Message type
9.8
M V 1
Nb IEI = 4 M = 43

8.3.14 ESM information response

IEI Information Element Type/Reference Presence Format Length
Protocol discriminator Protocol discriminator
9.2
M V 1/2
EPS bearer identity EPS bearer identity
9.3.2
M V 1/2
Procedure transaction identity Procedure transaction identity
9.4
M V 1
ESM information response message identity Message type
9.8
M V 1
28 Access point name Access point name
9.9.4.1
O TLV 3-102
27 Protocol configuration options Protocol configuration options
9.9.4.11
O TLV 3-253
Nb IEI = 6 M = 4, O = 23,9-358

8.3.15 ESM status

IEI Information Element Type/Reference Presence Format Length
Protocol discriminator Protocol discriminator
9.2
M V 1/2
EPS bearer identity EPS bearer identity
9.3.2
M V 1/2
Procedure transaction identity Procedure transaction identity
9.4
M V 1
ESM status message identity Message type
9.8
M V 1
ESM cause ESM cause
9.9.4.4
M V 1
Nb IEI = 5 M = 54

8.3.16 Modify EPS bearer context accept

IEI Information Element Type/Reference Presence Format Length
Protocol discriminator Protocol discriminator
9.2
M V 1/2
EPS bearer identity EPS bearer identity
9.3.2
M V 1/2
Procedure transaction identity Procedure transaction identity
9.4
M V 1
Modify EPS bearer context accept message identity Message type
9.8
M V 1
27 Protocol configuration options Protocol configuration options
9.9.4.11
O TLV 3-253
Nb IEI = 5 M = 4, O = 13,6-256

8.3.17 Modify EPS bearer context reject

IEI Information Element Type/Reference Presence Format Length
Protocol discriminator Protocol discriminator
9.2
M V 1/2
EPS bearer identity EPS bearer identity
9.3.2
M V 1/2
Procedure transaction identity Procedure transaction identity
9.4
M V 1
Modify EPS bearer context reject message identity Message type
9.8
M V 1
ESM cause ESM cause
9.9.4.4
M V 1
27 Protocol configuration options Protocol configuration options
9.9.4.11
O TLV 3-253
Nb IEI = 6 M = 5, O = 14,7-257

8.3.18 Modify EPS bearer context request

IEI Information Element Type/Reference Presence Format Length
Protocol discriminator Protocol discriminator
9.2
M V 1/2
EPS bearer identity EPS bearer identity
9.3.2
M V 1/2
Procedure transaction identity Procedure transaction identity
9.4
M V 1
Modify EPS bearer context request message identity Message type
9.8
M V 1
5B New EPS QoS EPS quality of service
9.9.4.3
O TLV 3-15
36 TFT Traffic flow template
9.9.4.16
O TLV 3-257
30 New QoS Quality of service
9.9.4.12
O TLV 14-22
32 Negotiated LLC SAPI LLC service access point identifier
9.9.4.7
O TV 2
8- Radio priority Radio priority
9.9.4.13
O TV 1
34 Packet flow Identifier Packet flow Identifier
9.9.4.8
O TLV 3
5E APN-AMBR APN aggregate maximum bit rate
9.9.4.2
O TLV 4-8
27 Protocol configuration options Protocol configuration options
9.9.4.11
O TLV 3-253
Nb IEI = 12 M = 4, O = 83,36-564

8.3.18A Notification

IEI Information Element Type/Reference Presence Format Length
Protocol discriminator Protocol discriminator
9.2
M V 1/2
EPS bearer identity EPS bearer identity
9.3.2
M V 1/2
Procedure transaction identity Procedure transaction identity
9.4
M V 1
Notification message identity Message type
9.8
M V 1
Notification indicator Notification indicator
9.9.4.7A
M LV 2
Nb IEI = 5 M = 55

8.3.19 PDN connectivity reject

IEI Information Element Type/Reference Presence Format Length
Protocol discriminator Protocol discriminator
9.2
M V 1/2
EPS bearer identity EPS bearer identity
9.3.2
M V 1/2
Procedure transaction identity Procedure transaction identity
9.4
M V 1
PDN connectivity reject message identity Message type
9.8
M V 1
ESM cause ESM cause
9.9.4.4
M V 1
27 Protocol configuration options Protocol configuration options
9.9.4.11
O TLV 3-253
37 T3396 value GPRS timer 3
9.9.3.16B
O TLV 3
Nb IEI = 7 M = 5, O = 24,10-260

8.3.20 PDN connectivity request

IEI Information Element Type/Reference Presence Format Length
Protocol discriminator Protocol discriminator
9.2
M V 1/2
EPS bearer identity EPS bearer identity
9.3.2
M V 1/2
Procedure transaction identity Procedure transaction identity
9.4
M V 1
PDN connectivity request message identity Message type
9.8
M V 1
Request type Request type
9.9.4.14
M V 1/2
PDN type PDN type
9.9.4.10
M V 1/2
D- ESM information transfer flag ESM information transfer flag
9.9.4.5
O TV 1
28 Access point name Access point name
9.9.4.1
O TLV 3-102
27 Protocol configuration options Protocol configuration options
9.9.4.11
O TLV 3-253
C- Device properties Device properties
9.9.2.0A
O TV 1
Nb IEI = 10 M = 6, O = 44,12-361

8.3.21 PDN disconnect reject

IEI Information Element Type/Reference Presence Format Length
Protocol discriminator Protocol discriminator
9.2
M V 1/2
EPS bearer identity EPS bearer identity
9.3.2
M V 1/2
Procedure transaction identity Procedure transaction identity
9.4
M V 1
PDN disconnect reject message identity Message type
9.8
M V 1
ESM cause ESM cause
9.9.4.4
M V 1
27 Protocol configuration options Protocol configuration options
9.9.4.11
O TLV 3-253
Nb IEI = 6 M = 5, O = 14,7-257

8.3.22 PDN disconnect request

IEI Information Element Type/Reference Presence Format Length
Protocol discriminator Protocol discriminator
9.2
M V 1/2
EPS bearer identity EPS bearer identity
9.3.2
M V 1/2
Procedure transaction identity Procedure transaction identity
9.4
M V 1
PDN disconnect request message identity Message type
9.8
M V 1
Linked EPS bearer identity Linked EPS bearer identity
9.9.4.6
M V 1/2
Spare half octet Spare half octet
9.9.2.9
M V 1/2
27 Protocol configuration options Protocol configuration options
9.9.4.11
O TLV 3-253
Nb IEI = 7 M = 6, O = 14,7-257