4.7 Default NAS message and information element contents

36.5083GPPCommon test environments for User Equipment (UE) conformance testingEvolved Universal Terrestrial Radio Access (E-UTRA) and Evolved Packet Core (EPC)Release 17TS

This clause contains the default values of common NAS messages and information elements, which apply to all test cases unless otherwise specified. All the messages and information elements are listed in alphabetical order.

4.7.1 Security protected NAS messages

In subclauses 4.7.2 and 4.7.3 in this document, all the NAS messages are described in the plain NAS message format.

When a NAS message is security protected, the message shall be contained by SECURITY PROTECTED NAS MESSAGE unless contained by another NAS message.

The default contents of SECURITY PROTECTED NAS MESSAGE message are defined in table 4.7.1-1.

Table 4.7.1-1: SECURITY PROTECTED NAS MESSAGE

Derivation Path: 24.301 clause 8.2.23

Information Element

Value/remark

Comment

Condition

Protocol discriminator

EMM

Security header type

‘0001’B

Integrity protected

UNCIPHERED

‘0010’B

Integrity protected and ciphered

CIPHERED

‘0011’B

Integrity protected with new EPS security context

UNCIPHERED-NEW

‘0100’B

Integrity protected and ciphered with new EPS security context

CIPHERED-NEW

‘0101’B

Integrity protected and partially ciphered NAS message

CIPHERED-PARTIALLY

Message authentication code

The calculated value of MAC-I for this message.

The value of MAC-I is calculated by SS using Sequence number sent by UE.

SENT-BY-SS

The same value as the XMAC-I value calculated by SS.

SENT-BY-UE

Sequence number

The internal counter of the SS

SENT-BY-SS

Any allowed value

SENT-BY-UE

NAS message

Set according to specific message content

Condition

Explanation

UNCIPHERED

This condition applies to unciphered NAS message exchange

CIPHERED

This condition applies to ciphered NAS message exchange

UNCIPHERED-NEW

This condition applies to unciphered NAS message exchange with new EPS security context

CIPHERED-NEW

This condition applies to ciphered NAS message exchange with new EPS security context

CIPHERED-PARTIALLY

This condition applies to partially ciphered NAS message exchange

SENT-BY-SS

Use for the message sent from SS to UE

SENT-BY-UE

Use for the message sent from UE to SS

When a valid NAS security context exists, unless specified otherwise in other clauses of the present specification or in a test case, for every DL NAS message sent within SECURITY PROTECTED NAS MESSAGE message, the condition CIPHERED applies.

4.7.2 Contents of EMM messages

– ATTACH ACCEPT

This message is sent by the SS to the UE.

Table 4.7.2-1: ATTACH ACCEPT

Derivation Path: 24.301 clause 8.2.1

Information Element

Value/remark

Comment

Condition

Protocol discriminator

EMM

Security header type

‘0000’B

Plain NAS message, not security protected

Attach accept message identity

‘0100 0010’B

Attach accept

EPS attach result

‘0001’B

EPS only

EPS_only

‘0010’B

combined EPS/IMSI attach

combined_EPS_IMSI

Spare half octet

‘0000’B

T3412 value

Timer value

‘0 0000’B

Unit

‘111’B

value indicates that the timer is deactivated.

TAI list

Length of tracking area identity list contents

‘0000 0110’B

6 octets

Partial tracking area identity list 1

Number of elements

‘0 0000’B

1 element

Type of list

’00’B

list of TACs belonging to one PLMN, with non-consecutive TAC values

MCC

See table 4.4.2-2 in this document

For NAS test cases, see table 6.3.2.2-1.

MNC

See table 4.4.2-2 in this document

For NAS test cases, see table 6.3.2.2-1.

TAC 1

See table 4.4.2-2 in this document

For NAS test cases, see table 6.3.2.2-1.

ESM message container

ACTIVATE DEFAULT EPS BEARER CONTEXT REQUEST message to activate the default bearer

ESM message container

ESM DUMMY MESSAGE

CIoT_Attach_WithoutPDN

GUTI

Length of EPS mobile identity contents

‘0000 1011’B

11 octets

Type of identity

‘110’B

GUTI

Odd/even indication

‘0’B

even number of identity digits and also when the GUTI is used

MCC

See table 4.4.2-2 in this document

For NAS test cases, see table 6.3.2.2-1.

MNC

See table 4.4.2-2 in this document

For NAS test cases, see table 6.3.2.2-1.

MME Group ID

See table 4.4.2-2 in this document

For NAS test cases, see table 6.3.2.2-1.

MME Code

See table 4.4.2-2 in this document

For NAS test cases, see table 6.3.2.2-1.

M-TMSI

See table 4.4.2-2 in this document

For NAS test cases, see table 6.3.2.2-1.

Location area identification

Not present

EPS_only

Location area identification

combined_EPS_IMSI

MCC

MCC of the EUTRA cell from which this message is sent

MNC

MCC of the EUTRA cell from which this message is sent

LAC

1

MS identity

Not present

EPS_only

MS identity

combined_EPS_IMSI

Length of mobile identity contents

‘0000 0101’B

5 octets

Type of identity

‘100’B

TMSI/P-TMSI/M-TMSI

Odd/even indication

‘0’B

even number of identity digits and also when the TMSI/P-TMSI or TMGI and optional MBMS Session Identity is used

TMSI

TMSI-1

EMM cause

Not present

T3402 value

Not present

T3423 value

Not present

Equivalent PLMNs

Not present

Emergency number list

Not present

EPS network feature support

‘0000 0011’B

IMS voice over PS session in S1 mode supported, emergency bearer services in S1 mode supported

EPS network feature support

‘0000 0001’B

IMS voice over PS session in S1 mode supported

Rel-8

EPS network feature support

‘1000 0011 0000 1111’B

IMS voice over PS session in S1 mode, emergency bearer services in S1 mode, CP CIoT, ePCO, HC-CP CIoT, S1-U data and UP CIoT supported

CIoT

EPS network feature support

‘1100 0000 0000 1100’B

CIoT control plane optimization indicated, Attach Without PDN supported, ePCO supported, Header Compression for CIoT control plane supported

CIoT_CP AND pc_NB

EPS network feature support

‘1000 0000 0000 1011’B

CP CIoT supported, ePCO supported, S1-U data transfer supported, CIoT user plane optimization indicated

CIoT_UP AND pc_NB

EPS network feature support

‘1000 0000 0000 1010’B

CP CIoT supported, ePCO supported, S1-U data transfer only indicated

S1-U Only AND pc_NB

EPS network feature support

‘0010 0000 0000 0000’B

EXTENDED SERVICE REQUEST for packet services indicated

ESRPS

EPS network feature support

‘0000 0011 0000 1000’B

– IMS voice over PS session in S1 mode supported

– emergency bearer services in S1 mode supported

– ePCO supported

– Interworking without N26 interface not supported

NR

Additional update result

Not present

Additional update result

‘0010’ B

“SMS only”

additional_update_result_SMS OR CIoT_SMSOnly

T3412 extended value

Not present

Rel-10

T3324 value

Not present

Extended DRX parameters

Not present

DCN-ID

Not present

SMS services status

Not present

Non-3GPP NW provided policies

Not present

T3448 value

Not present

Network policy

Not present

T3447 value

Not present

Extended emergency number list

Not present

Ciphering key data

Not present

UE radio capability ID

The same value as received in UE radio capability ID; if any of the SECURITY MODE COMPLETE message

RACS

UE radio capability ID deletion indication

Not present

Negotiated IMSI offset

Not present

Condition

Explanation

EPS_only

This condition applies if the UE is configured to initiate EPS attach or if explicitly specified.

combined_EPS_IMSI

This condition applies if the UE is configured to initiate combined EPS/IMSI attach or if explicitly specified. This condition does not apply for NB-S1.

additional_update_result_SMS

If the UE requested “SMS only” in the Additional update type IE and combined_EPS_IMSI condition applies

CIoT_Attach_WithoutPDN

If the UE wants to attach without PDN for CIoT optimization

CIoT_CP

If test case requires control plane CIoT optimization

CIoT_SMSOnly

If SMS Only is indicated in the ATTACH REQ received earlier

CIoT_UP

If test case requires user plane CIoT optimization

S1-U data Only

If S1-U data transfer Only is indicated

CIoT

If in the last ATTACH REQUEST, the UE network capability was included with the “CP CIoT” (octet 8, bit 3) or the “UP CIoT” and “S1-U data” (octet 8, bit 4 and bit 5).

Note 1: This condition is only applicable for E-UTRA UEs (TS 36.523-2 A.4.1-1/1 or A.4.1-1/2).

ESRPS

If the test case requires the network to indicate support of EXTENDED SERVICE REQUEST for packet services (ESRPS)

NR

Used in NR test cases (TS 38.523-1 [71])

RACS

Used in RACS test cases (TS 36.523-1 [18]) If pc_EPC_RACS

NOTE: This message is always sent within SECURITY PROTECTED NAS MESSAGE message.

– ATTACH COMPLETE

This message is sent by the UE to the SS.

Table 4.7.2-2: ATTACH COMPLETE

Derivation Path: 24.301 clause 8.2.2

Information Element

Value/remark

Comment

Condition

Protocol discriminator

EMM

Security header type

‘0000’B

Plain NAS message, not security protected

Attach complete message identity

‘0100 0011’B

Attach complete

ESM message container

ACTIVATE DEFAULT EPS BEARER CONTEXT ACCEPT message

ESM message container

ESM DUMMY MESSAGE

CIoT_Attach_WithoutPDN

Condition

Explanation

CIoT_Attach_WithoutPDN

If the UE wants to attach without PDN for CIoT optimization

NOTE: This message is always sent within SECURITY PROTECTED NAS MESSAGE message.

– ATTACH REJECT

This message is sent by the SS to the UE.

Table 4.7.2-3: ATTACH REJECT

Derivation Path: 24.301 clause 8.2.3

Information Element

Value/remark

Comment

Condition

Protocol discriminator

EMM

Security header type

‘0000’B

Plain NAS message, not security protected

Attach reject message identity

‘0100 0100’B

Attach reject

EMM cause

Set according to specific message content.

ESM message container

Set according to specific message content.

NOTE: If this message includes the EMM cause set to #3, #6, #7, #8, #11, #12, #13, #14, #15, #25 or #35, it is sent within SECURITY PROTECTED NAS MESSAGE message. Otherwise this message is sent without integrity protection.

– ATTACH REQUEST

This message is sent by the UE to the SS.

Table 4.7.2-4: ATTACH REQUEST

Derivation Path: 24.301 clause 8.2.4

Information Element

Value/remark

Comment

Condition

Protocol discriminator

EMM

Security header type

‘0000’B

Plain NAS message, not security protected

Attach request message identity

‘0100 0001’B

Attach request

EPS attach type

‘0001’B

EPS attach

EPS_only

‘0010’B

combined EPS/IMSI attach

combined_EPS_IMSI

NAS key set identifier

Any allowed value

EPS mobile identity

Any allowed value

UE network capability

Any allowed value

UE network capability

EN-DC

All octets with the exception of octet 9, bit 5

Any allowed value

Dual connectivity with NR (DCNR) (octet 9, bit 5)

1

dual connectivity with NR supported

UE network capability

NR

All octets with the exception of octet 8, bit 8 and octet 9, bit 6

Any allowed value

Extended protocol configuration options (ePCO) (octet 8, bit 8)

‘1’

Extended protocol configuration options IE supported

N1 mode supported (N1mode) (octet 9, bit 6)

1

N1 mode supported

UE network capability

pc_EPC_RACS

All octets with the exception of octet 10, bit 1

Any allowed value

Radio capability signalling optimisation (RACS) capability (octet 10, bit 1)

1

ESM message container

PDN CONNECTIVITY REQUEST message to request PDN connectivity to the default PDN

ESM message container

ESM DUMMY MESSAGE

CIoT_Attach_WithoutPDN

Old P-TMSI signature

Not present or any allowed value

Additional GUTI

Not present or any allowed value

Last visited registered TAI

Not present or any allowed value

DRX parameter

Not present or any allowed value

MS network capability

Not present or any allowed value

Old location area identification

Not present or any allowed value

TMSI status

Not present or any allowed value

Mobile station classmark 2

Not present or any allowed value

Mobile station classmark 3

Not present or any allowed value

Supported Codecs

Not present or any allowed value

Additional update type

Not present

EPS_only

Additional update type

Any allowed value

EPS_only_with_SMS

Additional update type

Not present or any allowed value

combined_EPS_IMSI or CIoT

Voice domain preference and UE’s usage setting

Not present or any allowed value

Device properties

Not present or any allowed value

Old GUTI type

Not present or any allowed value

MS network feature support

Not present or any allowed value

TMSI based NRI container

Not present or any allowed value

T3324 value

Not present or any allowed value

T3412 extended value

Not present or any allowed value

Extended DRX parameters

Not present or any allowed value

UE additional security capability

Any allowed value (NOTE 1, NOTE 2)

EN-DC OR NR

UE status

Not present or any allowed value

Additional information requested

Not present or any allowed value

UE radio capability ID availability

Not present or any allowed value

pc_EPC_RACS

Requested IMSI offset

Not present or any allowed value

NOTE 1: For a UE supporting dual connectivity with NR, if the UE supports one of the encryption algorithms for 5GS in bits 8 to 5 of octet 3, it shall support the same algorithms for E-UTRAN as specified in 3GPP TS 33.401 [41].

NOTE 2: For a UE supporting dual connectivity with NR, if the UE supports one of the integrity protection algorithms for 5GS in bits 8 to 5 of octet 5, it shall support the same algorithms for E-UTRAN as specified in 3GPP TS 33.401 [41].

Condition

Explanation

EPS_only

See the definition below table 4.7.2-1.

combined_EPS_IMSI

See the definition below table 4.7.2-1.

CIoT_Attach_WithoutPDN

If the UE wants to attach without PDN for CIoT optimization

EPS_only_with_SMS

If the UE wants to perform EPS attach with SMS only for CIoT optimization

CIoT

If UE supports CIoT Optimisation

EN-DC

Used in E-UTRA-NR dual connectivity test cases (TS 38.523-1 [71])

NR

Used in NR test cases (TS 38.523-1 [71])

NOTE: This message is sent integrity protected when a valid security context exists and without integrity protection otherwise.

– AUTHENTICATION FAILURE

This message is sent by the UE to the SS.

Table 4.7.2-5: AUTHENTICATION FAILURE

Derivation Path: 24.301 clause 8.2.5

Information Element

Value/remark

Comment

Condition

Protocol discriminator

EMM

Security header type

‘0000’B

Plain NAS message, not security protected

Authentication failure message type

‘0101 1100’B

Authentication failure

EMM cause

‘0001 0100’B

Mac failure

Authentication failure parameter

Not present

See TS 24.301 [28] subclause 8.2.5.2

NOTE: The security protection of this message is the same as the previous AUTHENTICATION REQUEST message.

– AUTHENTICATION REJECT

This message is sent by the SS to the UE.

Table 4.7.2-6: AUTHENTICATION REJECT

Derivation Path: 24.301 clause 8.2.6

Information Element

Value/remark

Comment

Condition

Protocol discriminator

EMM

Security header type

‘0000’B

Plain NAS message, not security protected

Authentication reject message type

‘0101 0100’B

Authentication reject

NOTE: This message is sent without integrity protection.

– AUTHENTICATION REQUEST

This message is sent by the SS to the UE.

Table 4.7.2-7: AUTHENTICATION REQUEST

Derivation Path: 24.301 clause 8.2.7

Information Element

Value/remark

Comment

Condition

Protocol discriminator

EMM

Security header type

‘0000’B

Plain NAS message, not security protected

Authentication request message type

‘0101 0010’B

Authentication request

NAS key set identifierASME

NAS key set identifier

An arbitrarily selected value between ‘000’B and ‘110’B, different from the valid NAS key set identifier of the UE if such a value exists.

TSC

‘0’B

native security context (for KSIASME)

Spare half octet

‘0000’B

Authentication parameter RAND (EPS challenge)

An arbitrarily selected 128 bits value

Authentication parameter AUTN (EPS challenge)

See TS 24.301 [28] subclause 9.9.3.2

NOTE: Within a test execution this message is sent without integrity protection before NAS security mode control procedure has been successfully completed; and sent integrity protected and ciphered within SECURITY PROTECTED NAS MESSAGE message after NAS security mode control procedure has been successfully completed. SS does not maintain information for NAS security mode control procedure after a TC is completed.

– AUTHENTICATION RESPONSE

This message is sent by the UE to the SS.

Table 4.7.2-8: AUTHENTICATION RESPONSE

Derivation Path: 24.301 clause 8.2.8

Information Element

Value/remark

Comment

Condition

Protocol discriminator

EMM

Security header type

‘0000’B

Plain NAS message, not security protected

Authentication response message type

‘0101 0011’B

Authentication response

Authentication response parameter

See TS 24.301 [28] subclause 9.9.3.4

NOTE: When sent in response to an AUTHENTICATION REQUEST message which is not integrity protected and not ciphered, the AUTHENTICATION RESPONSE message may be sent integrity protected when a valid security context exists and without integrity protection otherwise.

– CS SERVICE NOTIFICATION

This message is sent by the SS to the UE.

Table 4.7.2-8A: CS SERVICE NOTIFICATION

Derivation Path: 24.301 clause 8.2.9

Information Element

Value/remark

Comment

Condition

Protocol discriminator

EMM

Security header type

‘0000’B

Plain NAS message, not security protected

CS service notification message identity

‘01100100’B

CS Service notification

Paging identity

‘1’B

TMSI

CLI

Not present

SS Code

Not present

LCS indicator

Not present

LCS client identity

Not present

NOTE: This message is always sent within SECURITY PROTECTED NAS MESSAGE message.

– CONTROL PLANE SERVICE REQUEST

This message is sent by the UE to the SS.

Table 4.7.2-28: CONTROL PLANE SERVICE REQUEST

Derivation Path: 24.301 clause 8.2.33

Information Element

Value/remark

Comment

Condition

Protocol discriminator

EMM

Security header type

‘0000’B

Plain NAS message, not security protected

Control plane service request message identity

‘0100 1101’B

Control plane service request

Data service type

Data service type value

Any allowed value

"Active" flag

‘0’B

No radio bearer establishment requested

NAS key set identifier

NAS key set identifier

The valid NAS key set identifier of the UE

TSC

‘0’B

native security context (for KSIASME)

ESM message container

Not present or PDN CONNECTIVITY REQUEST message to request PDN connectivity to the default PDN

NAS message container

Not present or set according to specific message content

EPS bearer context status

Not present or (octet 3 = ‘00100000’B and octet 4 = ‘00000000’B)

Device properties

Not present or Any allowed value

NOTE: This message is always sent within SECURITY PROTECTED NAS MESSAGE message as an integrity protected message. If the ESM Message Container or NAS message container is present, this element is ciphered – so the whole message is then integrity protected and partially ciphered.

– DETACH ACCEPT (UE originating detach)

This message is sent by the SS to the UE.

Table 4.7.2-9: DETACH ACCEPT

Derivation Path: 24.301 clause 8.2.10.1

Information Element

Value/remark

Comment

Condition

Protocol discriminator

EMM

Security header type

‘0000’B

Plain NAS message, not security protected

Detach accept message identity

‘0100 0110’B

Detach accept

NOTE: This message is sent using the same security protection as in the previous DETACH REQUEST message received from the UE.

– DETACH ACCEPT (UE terminated detach)

This message is sent by the UE to the SS.

Table 4.7.2-10: DETACH ACCEPT

Derivation Path: 24.301 clause 8.2.10.2

Information Element

Value/remark

Comment

Condition

Protocol discriminator

EMM

Security header type

‘0000’B

Plain NAS message, not security protected

Detach accept message identity

‘0100 0110’B

Detach accept

NOTE: This message is sent without integrity protection before NAS security mode control procedure has been successfully completed and sent within SECURITY PROTECTED NAS MESSAGE message after NAS security mode control procedure has been successfully completed.

– DETACH REQUEST (UE originating detach)

This message is sent by the UE to the SS.

Table 4.7.2-11: DETACH REQUEST

Derivation Path: 24.301 clause 8.2.11.1

Information Element

Value/remark

Comment

Condition

Protocol discriminator

EMM

Security header type

‘0000’B

Plain NAS message, not security protected

Detach request message identity

‘0100 0101’B

Detach request

Detach type

Type of detach

‘001’B

EPS detach

EPS_only

‘011’B

combined EPS/IMSI detach

Combined_EPS_IMSI

Switch off

‘1’B

switch off

NAS key set identifier

NAS key set identifier

The valid NAS key set identifier.

TSC

Any Value

GUTI or IMSI

If the UE has a valid GUTI, set to the GUTI, otherwise set to the IMSI of the UE.

Condition

Explanation

EPS_only

See the definition below table 4.7.2-1.

Combined_EPS_IMSI

See the definition below table 4.7.2-1.

NOTE: This message is sent with integrity protection before SS has started the ciphering and integrity and ciphered protected after SS has started the ciphering.

– DETACH REQUEST (UE terminated detach)

This message is sent by the SS to the UE.

Table 4.7.2-12: DETACH REQUEST

Derivation Path: 24.301 clause 8.2.11.2

Information Element

Value/remark

Comment

Condition

Protocol discriminator

EMM

Security header type

‘0000’B

Plain NAS message, not security protected

Detach request message identity

‘0100 0101’B

Detach request

Detach type

Set according to specific message content.

Spare half octet

‘0000’B

EMM cause

Set according to specific message content.

NOTE: This message is always sent within SECURITY PROTECTED NAS MESSAGE message.

– DOWNLINK NAS TRANSPORT

This message is sent by the SS to the UE.

Table 4.7.2-12A: DOWNLINK NAS TRANSPORT

Derivation Path: 24.301 clause 8.2.12

Information Element

Value/remark

Comment

Condition

Protocol discriminator

EMM

Security header type

‘0000’B

Plain NAS message, not security protected

Downlink NAS transport message identity

‘0110 0010’B

Downlink NAS transport

NAS message container

Set according to specific message content

NOTE: This message is always sent within SECURITY PROTECTED NAS MESSAGE message.

– EMM INFORMATION

This message is sent by the SS to the UE.

Table 4.7.2-13: EMM INFORMATION

Derivation Path: 24.301 clause 8.2.13

Information Element

Value/remark

Comment

Condition

Protocol discriminator

EMM

Security header type

‘0000’B

Plain NAS message, not security protected

EMM information message identity

‘0110 0001’B

EMM information

Full name for network

Set according to specific message content.

Short name for network

Set according to specific message content.

Local time zone

Set according to specific message content.

Universal time and local time zone

Set according to specific message content.

Network daylight saving time

Set according to specific message content.

NOTE: This message is always sent within SECURITY PROTECTED NAS MESSAGE message.

– EMM STATUS

This message is sent by the UE or by the SS.

Table 4.7.2-14: EMM STATUS

Derivation Path: 24.301 clause 8.2.14

Information Element

Value/remark

Comment

Condition

Protocol discriminator

EMM

Security header type

‘0000’B

Plain NAS message, not security protected

EMM status message identity

‘0110 0000’B

EMM status

EMM cause

Set according to specific message content.

NOTE: This message is always sent within SECURITY PROTECTED NAS MESSAGE message.

– EXTENDED SERVICE REQUEST

This message is sent by the UE to the SS.

Table 4.7.2-14A: EXTENDED SERVICE REQUEST

Derivation Path: 24.301 clause 8.2.15

Information Element

Value/remark

Comment

Condition

Protocol discriminator

EMM

Security header type

‘0000’B

Plain NAS message, not security protected

Extended service request message identity

‘0100 1100’B

Extended service request

Service type

‘0001’B

mobile terminating CS fallback or 1xCS fallback

NAS key set identifier

NAS key set identifier

The valid NAS key set identifier.

TSC

‘0’B

native security context (for KSIASME)

M-TMSI

If the UE has a valid M-TMSI, set to the M-TMSI, otherwise set to the IMSI of the UE.

CSFB response

’001’B

CS fallback accepted by the UE

UE request type

Not present or any allowed value

Paging restriction

Not present

NOTE: This message is always sent within SECURITY PROTECTED NAS MESSAGE message.

– GUTI REALLOCATION COMMAND

This message is sent by the SS to the UE.

Table 4.7.2-15: GUTI REALLOCATION COMMAND

Derivation Path: 24.301 clause 8.2.16

Information Element

Value/remark

Comment

Condition

Protocol discriminator

EMM

Security header type

‘0000’B

Plain NAS message, not security protected

GUTI reallocation command message identity

‘0101 0000’B

GUTI reallocation command

GUTI

Set according to specific message content.

TAI list

Set according to specific message content.

NOTE: This message is always sent within SECURITY PROTECTED NAS MESSAGE message.

– GUTI REALLOCATION COMPLETE

This message is sent by the UE to the SS.

Table 4.7.2-16: GUTI REALLOCATION COMPLETE

Derivation Path: 24.301 clause 8.2.17

Information Element

Value/remark

Comment

Condition

Protocol discriminator

EMM

Security header type

‘0000’B

Plain NAS message, not security protected

GUTI reallocation complete message identity

‘0101 0001’B

GUTI reallocation complete

NOTE: This message is always sent within SECURITY PROTECTED NAS MESSAGE message.

– IDENTITY REQUEST

This message is sent by the SS to the UE.

Table 4.7.2-17: IDENTITY REQUEST

Derivation Path: 24.301 clause 8.2.18

Information Element

Value/remark

Comment

Condition

Protocol discriminator

EMM

Security header type

‘0000’B

Plain NAS message, not security protected

Identity request message identity

‘0101 0101’B

Identity request

Identity type

‘0001’B

IMSI

Spare half octet

‘0000’B

NOTE: This message is sent without integrity protection before NAS security mode control procedure has been successfully completed and sent within SECURITY PROTECTED NAS MESSAGE message after NAS security mode control procedure has been successfully completed.

– IDENTITY RESPONSE

This message is sent by the UE to the SS.

Table 4.7.2-18: IDENTITY RESPONSE

Derivation Path: 24.301 clause 8.2.19

Information Element

Value/remark

Comment

Condition

Protocol discriminator

EMM

Security header type

‘0000’B

Plain NAS message, not security protected

Identity response message

‘0101 0110’B

Identity response

Mobile identity

IMSI of the UE

NOTE: This message is sent without integrity protection before NAS security mode control procedure has been successfully completed and sent within SECURITY PROTECTED NAS MESSAGE message after NAS security mode control procedure has been successfully completed.

– SECURITY MODE COMMAND

This message is sent by the SS to the UE.

Table 4.7.2-19: SECURITY MODE COMMAND

Derivation Path: 24.301 clause 8.2.20

Information Element

Value/remark

Comment

Condition

Protocol discriminator

EMM

Security header type

‘0000’B

Plain NAS message, not security protected

Security mode command message identity

‘0101 1101’B

Security mode command

Selected NAS security algorithms

Type of integrity protection algorithm

Set according to PIXIT parameter for default integrity protection algorithm

For SIG

0(reserved or eia0)

This IE is set to one of the algorithms supported by the UE as indicated in the IE "UE network capability" in the ATTACH REQUEST message.

For RF

eia1

eia2

Type of ciphering algorithm

Set according to PIXIT parameter for default ciphering algorithm

For SIG

eea0

For RF

NAS key set identifier

NAS key set identifier

The valid NAS key set identifier.

TSC

‘0’B

native security context (for KSIASME)

Spare half octet

‘0000’B

Replayed UE security capabilities

Set according to the received UE security capabilities

IMEISV request

Not present

Replayed nonceUE

Not present

NonceMME

Not present

HashMME

Not present

Replayed UE additional security capability

Set to the value received in the Attach/TAU Request

EN-DC_duringRegistration

UE radio capability ID request

1

UE radio capability ID requested

RACS and UE radio capability ID availability is set in Attach/TAU Request

Condition

Explanation

For SIG

Used for signalling test cases

For RF

Used for RF/RRM test cases

EN-DC_duringRegistration

If the UE supports E-UTRA-NR dual connectivity NR ([71] pc_EN_DC) and this message is sent during an Attach or TAU procedure

RACS

Used in RACS test cases (TS 36.523-1 [18]) If pc_EPC_RACS

NOTE: This message is always sent integrity protected with new EPS security context.

– SECURITY MODE COMPLETE

This message is sent by the UE to the SS.

Table 4.7.2-20: SECURITY MODE COMPLETE

Derivation Path: 24.301 clause 8.2.21

Information Element

Value/remark

Comment

Condition

Protocol discriminator

EMM

Security header type

‘0000’B

Plain NAS message, not security protected

Security mode complete message identity

‘0101 1110’B

Security mode complete

IMEISV

Not present

UE radio capability ID

Any allowed value

pc_EPC_RACS

NOTE: This message is always sent within SECURITY PROTECTED NAS MESSAGE message with new EPS security context.

– SECURITY MODE REJECT

This message is sent by the UE to the SS.

Table 4.7.2-21: SECURITY MODE REJECT

Derivation Path: 24.301 clause 8.2.22

Information Element

Value/remark

Comment

Condition

Protocol discriminator

EMM

Security header type

‘0000’B

Plain NAS message, not security protected

Security mode reject message identity

‘0101 1111’B

Security mode reject

EMM cause

The value is set according to specific message content.

NOTE: This message is sent without integrity protection before NAS security mode control procedure has been successfully completed and sent within SECURITY PROTECTED NAS MESSAGE message after NAS security mode control procedure has been successfully completed.

– SERVICE ACCEPT

This message is sent by the SS to the UE.

Table 4.7.2-21A: SERVICE ACCEPT

Derivation Path: 24.301 clause 8.2.34

Information Element

Value/remark

Comment

Condition

Protocol discriminator

EMM

Security header type

‘0000’B

Plain NAS message, not security protected

Service accept message identity

‘0100 1111’B

Service accept

EPS bearer context status

The same value as the value set in CONTROL PLANE SERVICE REQUEST

EPS additional request result

Not present

NOTE: This message is always sent within SECURITY PROTECTED NAS MESSAGE message.

– SERVICE REJECT

This message is sent by the SS to the UE.

Table 4.7.2-22: SERVICE REJECT

Derivation Path: 24.301 clause 8.2.24

Information Element

Value/remark

Comment

Condition

Protocol discriminator

EMM

Security header type

‘0000’B

Plain NAS message, not security protected

Service reject message identity

‘0100 1110’B

Service reject

EMM cause

Set according to specific message content.

T3442 value

Not present

NOTE: If this message includes the EMM cause set to #3, #6, #7, #8, #11, #12, #13, #14, #15, #25 or #35, it is sent within SECURITY PROTECTED NAS MESSAGE message. Otherwise this message is sent without integrity protection.

– SERVICE REQUEST

This message is sent by the UE to the SS.

Table 4.7.2-23: SERVICE REQUEST

Derivation Path: 24.301 clause 8.2.25

Information Element

Value/remark

Comment

Condition

Protocol discriminator

EMM

Security header type

‘1100’B

Security header for the SERVICE REQUEST message

KSI and sequence number

Sequence number (short)

The 5 least significant bits of the NAS COUNT value applicable when this message is sent for sequence number.

KSI

The effective KSI value.

Message authentication code (short)

The 2 least significant octets of the resulting message authentication code

– TRACKING AREA UPDATE ACCEPT

This message is sent by the SS to the UE.

Table 4.7.2-24: TRACKING AREA UPDATE ACCEPT

Derivation Path: 24.301 clause 8.2.26

Information Element

Value/remark

Comment

Condition

Protocol discriminator

EMM

Security header type

‘0000’B

Plain NAS message, not security protected

Tracking area update accept message identity

‘0100 1001’B

Tracking area update accept

EPS update result

‘0000’B

TA updated

TA_only

‘0001’B

combined TA/LA updated

combined_TA_LA

Spare half octet

‘0000’B

T3412 value

Not present

Periodic

T3412 value

Timer value

‘0 0000’B

Unit

‘111’B

value indicates that the timer is deactivated.

GUTI

Length of EPS mobile identity contents

‘0000 1011’B

11 octets

Type of identity

‘110’B

GUTI

Odd/even indication

‘0’B

even number of identity digits and also when the GUTI is used

MCC

See table 4.4.2-2 in this document

For NAS test cases, see table 6.3.2.2-1.

MNC

See table 4.4.2-2 in this document

For NAS test cases, see table 6.3.2.2-1.

MME Group ID

See table 4.4.2-2 in this document

For NAS test cases, see table 6.3.2.2-1.

MME Code

See table 4.4.2-2 in this document

For NAS test cases, see table 6.3.2.2-1.

M-TMSI

See table 4.4.2-2 in this document

For NAS test cases, see table 6.3.2.2-1.

TAI list

Length of tracking area identity list contents

‘0000 0110’B

6 octets

Partial tracking area identity list 1

Number of elements

‘0 0000’B

1 element

Type of list

’00’B

list of TACs belonging to one PLMN, with non-consecutive TAC values

MCC

See table 4.4.2-2 in this document

For NAS test cases, see table 6.3.2.2-1.

MNC

See table 4.4.2-2 in this document

For NAS test cases, see table 6.3.2.2-1.

TAC 1

See table 4.4.2-2 in this document

For NAS test cases, see table 6.3.2.2-1.

EPS bearer context status

The same value as the value set in TRACKING AREA UPDATE REQUEST message

Location area identification

Not present

TA_only

Location area identification

combined_TA_LA

MCC

MCC of the EUTRA cell from which this message is sent

MNC

MCC of the EUTRA cell from which this message is sent

LAC

1

MS identity

Not present

TA_only

MS identity

combined_TA_LA

Length of mobile identity contents

‘0000 0101’B

5 octets

Type of identity

‘100’B

TMSI/P-TMSI/M-TMSI

Odd/even indication

‘0’B

even number of identity digits and also when the TMSI/P-TMSI or TMGI and optional MBMS Session Identity is used

TMSI

TMSI-1

EMM cause

Not present

T3402 value

Not present

T3423 value

Not present

Equivalent PLMNs

Not present

Emergency number list

Not present

EPS network feature support

0000 0001’B

IMS voice over PS session in S1 mode supported

EPS network feature support

‘1100 0000 0000 1100’B

CIoT control plane optimization indicated, Attach Without PDN supported, ePCO supported, Header Compression for CIoT control plane supported

(CIoT_CP OR CIoT_CP_SMSOnly) AND pc_NB

EPS network feature support

‘1000 0000 0000 1011’B

CP CIoT supported, ePCO supported, S1-U data transfer supported, CIoT user plane optimization indicated

CIoT_UP AND pc_NB

EPS network feature support

‘1000 0000 0000 1010’B

CP CIoT supported, ePCO supported, S1-U data transfer Only indicated

S1-U Only AND pc_NB

EPS network feature support

‘0000 0011 0000 1000’B

– IMS voice over PS session in S1 mode supported

– emergency bearer services in S1 mode supported

– ePCO supported

– Interworking without N26 interface not supported

NR

Additional update result

Not present

Additional update result

‘0010’ B

“SMS only”

TAU_additional_update_result_SMS OR CIoT_CP_SMSOnly

T3412 extended value

Not present

Rel-10

T3324 value

Not present

Extended DRX parameters

Not present

Header compression configuration status

Not present or set according to specific message content

DCN-ID

Not present

SMS services status

Not present

Non-3GPP NW provided policies

Not present

T3448 value

Not present

Network policy

Not present

T3447 value

Not present

Extended emergency number list

Not present

Ciphering key data

Not present

UE radio capability ID

The same value as received in UE radio capability ID; if any of the SECURITY MODE COMPLETE message

RACS

UE radio capability ID deletion indication

Not present

Negotiated IMSI offset IE

Not present

EPS additional request result

Not present

Condition

Explanation

TA_only

This condition applies if the UE is configured to initiate EPS attach or if explicitly specified.

combined_TA_LA

This condition applies if the UE is configured to initiate combined EPS/IMSI attach or if explicitly specified. This condition does not apply for NB-S1.

Periodic

This condition applies if in the last TRACKING AREA UPDATE REQUEST sent prior to this message, the EPS update type Value = ‘011’B (periodic updating).

TAU_additional_update_result_SMS

If the UE requested "SMS only" in the Additional update type IE and combined_TA_LA.

CIoT_CP

If test case requires control plane CIoT optimization

CIoT_CP_SMSOnly

If test case requires control plane CIoT optimization and SMS Only is indicated

CIoT_UP

If test case requires user plane CIoT optimization

S1-U data Only

If S1-U data transfer Only is indicated

NR

Used in NR test cases (TS 38.523-1 [71])

RACS

Used in RACS test cases (TS 36.523-1 [18]) If pc_EPC_RACS

NOTE: This message is always sent within SECURITY PROTECTED NAS MESSAGE message.

– TRACKING AREA UPDATE COMPLETE

This message is sent by the UE to the SS.

Table 4.7.2-25: TRACKING AREA UPDATE COMPLETE

Derivation Path: 24.301 clause 8.2.27

Information Element

Value/remark

Comment

Condition

Protocol discriminator

EMM

Security header type

‘0000’B

Plain NAS message, not security protected

Tracking area update complete message identity

‘0100 1010’B

Tracking area update complete

NOTE: This message is always sent within SECURITY PROTECTED NAS MESSAGE message.

– TRACKING AREA UPDATE REJECT

This message is sent by the SS to the UE.

Table 4.7.2-26: TRACKING AREA UPDATE REJECT

Derivation Path: 24.301 clause 8.2.28

Information Element

Value/remark

Comment

Condition

Protocol discriminator

EMM

Security header type

‘0000’B

Plain NAS message, not security protected

Tracking area update reject message identity

‘0100 1011’B

Tracking area update reject

EMM cause

Set according to specific message content.

NOTE: If this message includes the EMM cause set to #3, #6, #7, #8, #11, #12, #13, #14, #15, #25 or #35, it is sent within SECURITY PROTECTED NAS MESSAGE message. Otherwise this message is sent without integrity protection.

– TRACKING AREA UPDATE REQUEST

This message is sent by the UE to the SS.

Table 4.7.2-27: TRACKING AREA UPDATE REQUEST

Derivation Path: 24.301 clause 8.2.29

Information Element

Value/remark

Comment

Condition

Protocol discriminator

EMM

Security header type

‘0000’B

Plain NAS message, not security protected

Tracking area update request message identity

‘0100 1000’B

Tracking area update request

EPS update type

EPS update type Value

‘000’B

TA updating

TA_only

‘001’B

Combined TA/LA updating

combined_TA_LA

"Active" flag

‘0’B

No bearer establishment requested

NAS key set identifier

NAS key set identifier

The valid NAS key set identifier of the UE

TSC

‘0’B

native security context (for KSIASME)

Old GUTI

Any allowed value

Non-current native NAS key set identifier

Not present

GPRS ciphering key sequence number

Not present

Old P-TMSI signature

Not present

Additional GUTI

Not present

NonceUE

Not present

UE network capability

Not present or any allowed value

UE network capability

EN-DC

All octets with the exception of octet 9, bit 5

Any allowed value

Dual connectivity with NR (DCNR) (octet 9, bit 5)

1

dual connectivity with NR supported

UE network capability

NR

All octets with the exception of octet 8, bit 8 and octet 9, bit 6

Any allowed value

Extended protocol configuration options (ePCO) (octet 8, bit 8)

1

ePCO supported

N1 mode supported (N1mode) (octet 9, bit 6)

1

N1 mode supported

UE network capability

pc_EPC_RACS

All octets with the exception of octet 10, bit 1

Any allowed value

Radio capability signalling optimisation (RACS) capability (octet 10, bit 1)

1

Last visited registered TAI

Not present or any allowed value

DRX parameter

Not present or any allowed value

UE radio capability information update needed

Not present or any allowed value

EPS bearer context status

Not present or (octet 3 = ‘00100000’B and octet 4 = ‘00000000’B)

MS network capability

Not present or any allowed value

Old location area identification

Not present or any allowed value

TMSI status

Not present or any allowed value

Mobile station classmark 2

Not present or any allowed value

Mobile station classmark 3

Not present or any allowed value

Supported Codecs

Not present or any allowed value

Additional update type

Not present

TA_only

Additional update type

Not present or any allowed value

combined_TA_LA

Additional update type

Any allowed value

TA_only_with_SMS

Additional update type

Not present or any allowed value

CIoT

Voice domain preference and UE’s usage setting

Not present or any allowed value

Old GUTI type

Not present or any allowed value

Device properties

Not present or any allowed value

MS network feature support

Not present or any allowed value

TMSI based NRI container

Not present or any allowed value

T3324 value

Not present or any allowed value

T3412 extended value

Not present or any allowed value

Extended DRX parameters

Not present or any allowed value

UE additional security capability

Any allowed value (NOTE 1, NOTE 2)

EN-DC OR NR

UE status

Not present or any allowed value

Additional information requested

Not present or any allowed value

UE radio capability ID availability

Not present or any allowed value

pc_EPC_RACS

Requested IMSI offset

Not present or any allowed value

UE request type

Not present or any allowed value

Paging restriction

Not present or any allowed value

NOTE 1: For a UE supporting dual connectivity with NR, if the UE supports one of the encryption algorithms for 5GS in bits 8 to 5 of octet 3, it shall support the same algorithms for E-UTRAN as specified in 3GPP TS 33.401 [41].

NOTE 2: For a UE supporting dual connectivity with NR, if the UE supports one of the integrity protection algorithms for 5GS in bits 8 to 5 of octet 5, it shall support the same algorithms for E-UTRAN as specified in 3GPP TS 33.401 [41].

Condition

Explanation

TA_only

See the definition below table 4.7.2-24.

combined_TA_LA

See the definition below table 4.7.2-24.

EPS_only_with_SMS

If the UE wants to update for EPS attach with SMS only for CIoT optimization

CIoT

If UE supports CIoT Optimisation

EN-DC

Used in E-UTRA-NR dual connectivity test cases (TS 38.523-1 [71])

NR

Used in NR test cases (TS 38.523-1 [71])

NOTE: This message is always sent within SECURITY PROTECTED NAS MESSAGE message.

– UPLINK NAS TRANSPORT

This message is sent by the UE to the SS.

Table 4.7.2-27A: UPLINK NAS TRANSPORT

Derivation Path: 24.301 clause 8.2.30

Information Element

Value/remark

Comment

Condition

Protocol discriminator

EMM

Security header type

‘0000’B

Plain NAS message, not security protected

Uplink NAS transport message identity

‘0100 0011’B

Uplink NAS transport

NAS message container

Set according to specific message content

NOTE: This message is always sent within SECURITY PROTECTED NAS MESSAGE message.

4.7.3 Contents of ESM messages

– ACTIVATE DEDICATED EPS BEARER CONTEXT ACCEPT

This message is sent by the UE to the SS.

Table 4.7.3-1: ACTIVATE DEDICATED EPS BEARER CONTEXT ACCEPT

Derivation Path: 24.301 clause 8.3.1

Information Element

Value/remark

Comment

Condition

Protocol discriminator

ESM

EPS bearer identity

The same value as the value set in ACTIVATE DEDICATED EPS BEARER CONTEXT REQUEST message

Procedure transaction identity

‘0000 0000’B

No procedure transaction identity assigned

Activate dedicated EPS bearer context accept message identity

‘1100 0110’B

Activate dedicated EPS bearer context accept

Protocol configuration options

Not present or any allowed value

NOT (pc_NB or pc_NonIP_PDN)

Protocol configuration options

Not present

pc_NB or pc_NonIP_PDN

NBIFOM container

Not present or any allowed value

Extended protocol configuration options

Not present or any allowed value

NOTE: This message is always sent within SECURITY PROTECTED NAS MESSAGE message.

– ACTIVATE DEDICATED EPS BEARER CONTEXT REJECT

This message is sent by UE to the SS.

Table 4.7.3-2: ACTIVATE DEDICATED EPS BEARER CONTEXT REJECT

Derivation Path: 24.301 clause 8.3.2

Information Element

Value/remark

Comment

Condition

Protocol discriminator

ESM

EPS bearer identity

The same value as the value set in ACTIVATE DEDICATED EPS BEARER CONTEXT REQUEST message.

Procedure transaction identity

‘0000 0000’B

No procedure transaction identity assigned

Activate dedicated EPS bearer context reject message identity

‘1100 0111’B

Activate dedicated EPS bearer context reject

ESM cause

The value is set according to specific message content.

Protocol configuration options

Not present

NBIFOM container

Not present or any allowed value

Extended protocol configuration options

Not present or any allowed value

NOTE: This message is always sent within SECURITY PROTECTED NAS MESSAGE message.

– ACTIVATE DEDICATED EPS BEARER CONTEXT REQUEST

This message is sent by the SS to the UE.

Table 4.7.3-3: ACTIVATE DEDICATED EPS BEARER CONTEXT REQUEST

Derivation Path: 24.301 clause 8.3.3

Information Element

Value/remark

Comment

Condition

Protocol discriminator

ESM

EPS bearer identity

Arbitrarily selected value between ‘0101’B and ‘1111’B.

Procedure transaction identity

‘0000 0000’B

No procedure transaction identity assigned

NETWORK-INITIATED

The same value as the value set in BEARER RESOURCE MODIFICATION REQUEST message or BEARER RESOURCE ALLOCATION REQUEST message

UE-INITIATED

Activate dedicated EPS bearer context request message identity

‘1100 0101’B

Activate dedicated EPS bearer context request

Linked EPS bearer identity

The EPS bearer identity of the associated default bearer

Spare half octet

‘0000’B

EPS QoS

See Reference dedicated EPS bearer context #1 in table 6.6.2-1

TFT

See Reference dedicated EPS bearer context #1 in table 6.6.2-1

Transaction identifier

Not present

Distinct value between 0 and 127 calculated on basis of the EPS bearer identity.

pc_UTRAN AND/OR pc_GERAN

Negotiated QoS

See Reference dedicated EPS bearer context #1 in table 6.6.2-1

Negotiated LLC SAPI

See Reference dedicated EPS bearer context #1 in table 6.6.2-1

Radio priority

See Reference dedicated EPS bearer context #1 in table 6.6.2-1

Packet flow Identifier

Not present

‘0000 0000’B

Best Effort

pc_GERAN

Protocol configuration options

See Reference dedicated EPS bearer context #1 in table 6.6.2-1

NOT (pc_NB or pc_NonIP_PDN)

Protocol configuration options

Not present

pc_NB or pc_NonIP_PDN

WLAN offload container

Not present

NBIFOM container

Not present

Extended protocol configuration options

Not present

NOT (pc_NB or pc_NonIP_PDN)

Extended protocol configuration options

See Reference dedicated EPS bearer context #1 in table 6.6.2-1

pc_NB or pc_NonIP_PDN

Condition

Explanation

NETWORK-INITIATED

Network initiated ESM procedures

UE-INITIATED

UE initiated ESM procedures

NOTE: This message is always sent within SECURITY PROTECTED NAS MESSAGE message.

– ACTIVATE DEFAULT EPS BEARER CONTEXT ACCEPT

This message is sent by the UE to the SS.

Table 4.7.3-4: ACTIVATE DEFAULT EPS BEARER CONTEXT ACCEPT

Derivation Path: 24.301 clause 8.3.4

Information Element

Value/remark

Comment

Condition

Protocol discriminator

ESM

EPS bearer identity

The same value as the value set in ACTIVATE DEFAULT EPS BEARER CONTEXT REQUEST message

Procedure transaction identity

‘0000 0000’B

No procedure transaction identity assigned

Activate default EPS bearer context accept message identity

‘1100 0010’B

Activate default EPS bearer context accept

Protocol configuration options

Not present or any allowed value

NOT (pc_NB or pc_NonIP_PDN)

Protocol configuration options

Not present

pc_NB or pc_NonIP_PDN

Extended protocol configuration options

Not present or any allowed value

NOTE: This message is always sent within SECURITY PROTECTED NAS MESSAGE message.

– ACTIVATE DEFAULT EPS BEARER CONTEXT REJECT

This message is sent by UE to the SS.

Table 4.7.3-5: ACTIVATE DEFAULT EPS BEARER CONTEXT REJECT

Derivation Path: 24.301 clause 8.3.5

Information Element

Value/remark

Comment

Condition

Protocol discriminator

ESM

EPS bearer identity

The same value as the value set in ACTIVATE DEFAULT EPS BEARER CONTEXT REQUEST message.

Procedure transaction identity

‘0000 0000’B

No procedure transaction identity assigned

Activate default EPS bearer context reject message identity

‘1100 0011’B

Activate default EPS bearer context reject

ESM cause

The value is set according to specific message content.

Protocol configuration options

Not present

Extended protocol configuration options

Not present

NOTE: This message is always sent within SECURITY PROTECTED NAS MESSAGE message.

– ACTIVATE DEFAULT EPS BEARER CONTEXT REQUEST

This message is sent by the SS to the UE.

Table 4.7.3-6: ACTIVATE DEFAULT EPS BEARER CONTEXT REQUEST

Derivation Path: 24.301 clause 8.3.6

Information Element

Value/remark

Comment

Condition

Protocol discriminator

ESM

EPS bearer identity

An arbitrarily selected value between ‘0101’B and ‘1111’B.

Procedure transaction identity

The same value as the value set in the latest PDN CONNECTIVITY REQUEST message sent prior to this message.

Activate default EPS bearer context request message identity

‘1100 0001’B

Activate default EPS bearer context request

EPS QoS

See Reference default EPS bearer context #1 in table 6.6.1-1

NOT IMS_PDN_ConnEstab

EPS QoS

See Reference default EPS bearer context #2 in table 6.6.1-1

IMS_PDN_ConnEstab

Access point name

The SS defines a Default APN

NOT IMS_PDN_ConnEstab AND NOT APN_Provided

Access point name

APN as provided in ESM INFORMATION RESPONSE or PDN CONNECTIVITY REQUEST

NOT IMS_PDN_ConnEstab AND APN_Provided

Access point name

IMS. mnc<MNC>.mcc<MCC>.gprs

The <MNC> and <MCC> are set to the same values as in IMSI.

IMS_PDN_ConnEstab AND NOT APN_Provided

Access point name

Use APN Network Identifier provided in ESM INFORMATION RESPONSE or PDN CONNECTIVITY REQUEST message and the APN Operator Identifier mnc<MNC>.mcc<MCC>.gprs. The <MNC> and <MCC> are set to the same values as in IMSI.

IMS_PDN_ConnEstab AND APN_Provided

PDN address

IPv4

Length of PDN address contents

5 octets

PDN type value

‘001’B

IPv4

PDN address information

IPv4 address

The SS provides a valid IPv4 address

NOT IPv4-DHCP

0.0.0.0

DHCPv4 is to be used to allocate the IPv4 address

IPv4-DHCP

PDN address

IPv6

Length of PDN address contents

9 octets

PDN type value

‘010’B

IPv6

PDN address information

IPv6 interface identifier

The SS provides a valid IPv6 interface identifier

PDN address

IPv4v6

Length of PDN address contents

13 octets

PDN type value

‘011’B

IPv4v6

PDN address information (Octets 4 to 11)

IPv6 interface identifier

The SS provides a valid IPv6 interface identifier

PDN address information (Octets 12 to 15)

IPv4 address

The SS provides a valid IPv4 address

NOT IPv4-DHCP

0.0.0.0

DHCPv4 is to be used to allocate the IPv4 address

IPv4-DHCP

PDN address

CIoT_CP_NON_IP

Length of PDN address contents

2 octets

PDN type value

‘101’B

Non-IP PDN

PDN address information (Octets 4 to 7)

Coded as 0

spare

Transaction identifier

Not present

Transaction identifier

Distinct value between 0 and 127 calculated on basis of the EPS bearer identity.

pc_UTRAN AND/OR pc_GERAN

Negotiated QoS

See Reference default EPS bearer context #1 in table 6.6.1-1

Negotiated LLC SAPI

See Reference default EPS bearer context #1 in table 6.6.1-1

Radio priority

See Reference default EPS bearer context #1 in table 6.6.1-1

Packet flow Identifier

Not present

Packet flow Identifier

‘0000 0000’B

Best Effort

pc_GERAN

APN-AMBR

See Reference default EPS bearer context #1 in table 6.6.1-1

ESM cause

Not present

Protocol configuration options

Not present

pc_NB or pc_NonIP_PDN

Protocol configuration options

NOT (pc_NB or pc_NonIP_PDN)

Configuration protocol

See Reference default EPS bearer context #1 in table 6.6.1-1

Container ID 1

‘0001’H

P-CSCF IPv6

Length of container ID 1 contents

Length value determined by the TTCN implementation

Container ID 1 contents

IPv6 address

P-CSCF IPv6 Address

Container ID 2

‘000C’H

P-CSCF IPv4

Length of container ID 2 contents

Length value determined by the TTCN implementation

Container ID 2 contents

IPv4 address

P-CSCF IPv4 Address

Container ID n

‘0003’H

n assigned to next available number

DNS IPv6

Length of container ID n contents

Length value determined by the TTCN implementation

Container ID n contents

IPv6 address

DNS IPv6 Address

Container ID n+1

‘000D’H

n assigned to next available number

DNS IPv4

Length of container ID n+1 contents

Length value determined by the TTCN implementation

Container ID n+1 contents

IPv4 address

DNS IPv4 Address

Container ID n+2

‘001D’H

n assigned to next available number

Interworking_with_5GS

Length of container ID n+2 contents

Length value determined by the TTCN implementation

Container ID n+2 contents

Session-AMBR

Session-AMBR

Session AMBR

Unit for Session-AMBR for downlink

‘000 00101’

Value is incremented in multiples of 256 Kbps

Session-AMBR for downlink

‘0000 0000 0000 0100’B

1024 Kbps

Unit for Session-AMBR for uplink

‘000 00101’

Value is incremented in multiples of 256 Kbps

Session-AMBR for uplink

‘0000 0000 0000 0100’B

1024 Kbps

Container ID n+3

‘001C’H

n assigned to next available number

Interworking_with_5GS

Length of container ID n+3 contents

Length value determined by the TTCN implementation

Container ID n+3 contents

QoS rules

QoS rules according to TS 38.508-1 [67] Table 4.8.2.1-1

NOT IMS_PDN_ConnEstab

Container ID n+3 contents

QoS rules

QoS rules according to TS 38.508-1 [67] Table 4.8.2.1-2

IMS_PDN_ConnEstab

Container ID n+4

‘001F’H

n assigned to next available number

Interworking_with_5GS

Length of container ID n+4 contents

Length value determined by the TTCN implementation

Container ID n+4 contents

Qos flow descriptions

Qos flow descriptions according to TS 38.508-1 [67] 4.8.2.3-1 with condition Interworking_with_EPS

NOT IMS_PDN_ConnEstab

Container ID n+4 contents

Qos flow descriptions

Qos flow descriptions refer to TS 38.508-1 [67] 4.8.2.3-2 with condition Interworking_with_EPS

IMS_PDN_ConnEstab

Container ID n+5

‘001B’H

n assigned to next available number

Interworking_with_5GS

Length of container ID n+5 contents

Length value determined by the TTCN implementation

Container ID n+5 contents (Octet 1)

‘0000 0001’B

SST of S-NSSAI same as the allowed NSSAI in TS 38.508-1 [67] Table 4.7.1-7: REGISTRATION ACCEPT

Container ID n+5 contents (Octets 2 to 4)

PLMN ID

PLMD ID same as TS 38.508-1 [67] Table 6.3.2.2-1

WLAN offload indication

Not present

WLAN offload indication

WLAN

WLAN offload acceptability

‘0001’B

Offloading the traffic of the PDN connection via a WLAN when in S1 mode is acceptable

NBIFOM container

Not present

Header compression configuration

Not present or set according to specific message content

Control plane only indication

Not present

Control plane only indication

‘0001’B

CIoT_ControlPlane_PDN

Extended protocol configuration options

Not present

NOT (pc_NB or pc_NonIP_PDN)

Extended protocol configuration options

pc_NB or pc_NonIP_PDN

Configuration protocol

See Reference default EPS bearer context #1 in table 6.6.1-1

Container ID n

‘0003’H

n assigned to next available number

DNS IPv6

Length of container ID n contents

Length value determined by the TTCN implementation

Container ID n contents

IPv6 address

DNS IPv6 Address

Container ID n+1

‘000D’H

n assigned to next available number

DNS IPv4

Length of container ID n+1 contents

Length value determined by the TTCN implementation

Container ID n+1 contents

IPv4 address

DNS IPv4 Address

Serving PLMN rate control

Not present

Serving PLMN rate control

‘FFFF’H

Maximum number of ESM DATA TRANSPORT messages allowed per 6 min interval is not restricted

CIoT_ControlPlane_PDN

Condition

Explanation

IPv4

If in the last PDN CONNECTIVITY REQUEST sent prior to this message, the PDN type = ‘001’B

IPv6

If in the last PDN CONNECTIVITY REQUEST sent prior to this message, the PDN type = ‘010’B

IPv4v6

If in the last PDN CONNECTIVITY REQUEST sent prior to this message, the PDN type = ‘011’B

IPv4-DHCP

If in the last PDN CONNECTIVITY REQUEST or ESM INFORMATION RESPONSE sent prior to this message, the IE Protocol configuration options contains a configuration protocol option = ‘000B00H’ ("IPv4 address allocation via DHCPv4", length of contents = 0).

Note 1: This condition is used in conjunction with IPv4 or IPv4v6 as indicated in the "PDN address row" just above.

Note 2: If both messages, PDN CONNECTIVITY REQUEST and ESM INFORMATION RESPONSE, are received and contain a Protocol configuration options IE then the IE from the message which is received later shall be used.

P-CSCF IPv6

If in the last PDN CONNECTIVITY REQUEST or ESM INFORMATION RESPONSE sent prior to this message, the Protocol configuration options and the additional parameter list was included with a “P-CSCF IPv6 Address Request”

Note 1: This condition is only applicable for UEs with IMS support (TS 36.523-2 A.4.4-1/25).

Note 2: If both messages, PDN CONNECTIVITY REQUEST and ESM INFORMATION RESPONSE, are received and contain a Protocol configuration options IE then the IE from the message which is received later shall be used.

P-CSCF IPv4

If in the last PDN CONNECTIVITY REQUEST or ESM INFORMATION RESPONSE sent prior to this message, the Protocol configuration options and the additional parameter list was included with a “P-CSCF IPv4 Address Request”

Note 1: This condition is only applicable for UEs with IMS support (TS 36.523-2 A.4.4-1/25).

Note 2: If both messages, PDN CONNECTIVITY REQUEST and ESM INFORMATION RESPONSE, are received and contain a Protocol configuration options IE then the IE from the message which is received later shall be used.

DNS IPv6

If in the last PDN CONNECTIVITY REQUEST or ESM INFORMATION RESPONSE sent prior to this message, the Protocol configuration options and the additional parameter list was included with a “DNS IPv6 Address Request”.

Note: If both messages, PDN CONNECTIVITY REQUEST and ESM INFORMATION RESPONSE, are received and contain a Protocol configuration options IE then the IE from the message which is received later shall be used.

DNS IPv4

If in the last PDN CONNECTIVITY REQUEST or ESM INFORMATION RESPONSE sent prior to this message, the Protocol configuration options and the additional parameter list was included with a “DNS IPv4 Address Request”.

Note: If both messages, PDN CONNECTIVITY REQUEST and ESM INFORMATION RESPONSE, are received and contain a Protocol configuration options IE then the IE from the message which is received later shall be used.

APN_Provided

If in the last PDN CONNECTIVITY REQUEST or ESM INFORMATION RESPONSE sent prior to this message an Access Point Name was included

NOTE: APN_Provided is equivalent to pc_Provide_IMS_APN for establishment of the first PDN connectivity during initial registration and if the first PDN is IMS (see table 4.7.3-14)

IMS_PDN_ConnEstab

If this message refers to establishment of connectivity to the IMS PDN (only applicable if the UE supports IMS according to TS 36.523-2 A.4.4-1/25).

WLAN

If the message is being sent for RAN Assisted WLAN interworking.

CIoT_ControlPlane_PDN

If the associated PDN connection is only for control plane CIoT optimization

CIoT_CP_NON_IP

If the UE requests a Non-IP type PDN

Interworking_with_5GS

If the UE has indicated support of N1, then the SS shall include these IEs to provide details for the interworking with 5GS. Applicable to 5G test cases defined in TS 38.523-1 [71].

NOTE: This message is always sent within SECURITY PROTECTED NAS MESSAGE message.

– BEARER RESOURCE ALLOCATION REJECT

This message is sent by the SS to the UE.

Table 4.7.3-6A: BEARER RESOURCE ALLOCATION REJECT

Derivation Path: 24.301 clause 8.3.7

Information Element

Value/remark

Comment

Condition

Protocol discriminator

ESM

EPS bearer identity

‘0000’B

No EPS bearer identity assigned

Procedure transaction identity

The value indicated in BEARER RESOURCE ALLOCATION REQUEST message.

Bearer resource allocation reject message identity

‘1101 0101’B

Bearer resource allocation reject

ESM cause

Set according to specific message content.

Protocol configuration options

Not present

NBIFOM container

Not present

Extended protocol configuration options

Not present

NOTE: This message is always sent within SECURITY PROTECTED NAS MESSAGE message.

– BEARER RESOURCE ALLOCATION REQUEST

This message is sent by the UE to the SS.

Table 4.7.3-6B: BEARER RESOURCE ALLOCATION REQUEST

Derivation Path: 24.301 clause 8.3.8

Information Element

Value/remark

Comment

Condition

Protocol discriminator

ESM

EPS bearer identity

‘0000’B

No EPS bearer identity assigned

Procedure transaction identity

Any value from 1 to 254

Bearer resource allocation request message identity

‘1101 0100’B

Bearer resource allocation request

Linked EPS bearer identity

The EPS bearer identity of the associated default bearer.

Spare half octet

‘0000’B

Traffic flow aggregate

Number of packet filters

Greater than 0 and less than or equal to 16

E bit

Any allowed value

TFT operation code

‘001’B

Create new TFT

Packet filter list

Any allowed value

Parameters list

Not present or any allowed value

Required traffic flow QoS

Any allowed value

Protocol configuration options

Not present or any allowed value

NBIFOM container

Not present or any allowed value

Extended protocol configuration options

Not present or any allowed value

NOTE: This message is always sent within SECURITY PROTECTED NAS MESSAGE message.

– BEARER RESOURCE MODIFICATION REJECT

This message is sent by the SS to the UE.

Table 4.7.3-7: BEARER RESOURCE MODIFICATION REJECT

Derivation Path: 24.301 clause 8.3.9

Information Element

Value/remark

Comment

Condition

Protocol discriminator

ESM

EPS bearer identity

‘0000’B

No EPS bearer identity assigned

Procedure transaction identity

The value indicated in BEARER RESOURCE MODIFICATION REQUEST message.

Bearer resource modification reject message identity

‘1101 0111’B

Bearer resource modification reject

ESM cause

Set according to specific message content.

Protocol configuration options

Not present

NBIFOM container

Not present

Extended protocol configuration options

Not present

NOTE: This message is always sent within SECURITY PROTECTED NAS MESSAGE message.

– BEARER RESOURCE MODIFICATION REQUEST

This message is sent by the UE to the SS.

Table 4.7.3-8: BEARER RESOURCE MODIFICATION REQUEST

Derivation Path: 24.301 clause 8.3.10

Information Element

Value/remark

Comment

Condition

Protocol discriminator

ESM

EPS bearer identity

‘0000’B

No EPS bearer identity assigned

Procedure transaction identity

Any value from 1 to 254

Bearer resource modification request message identity

‘1101 0110’B

Bearer resource modification request

EPS bearer identity for packet filter

The EPS bearer identity of the associated dedicated EPS bearer related with packet filter.

Spare half octet

‘0000’B

Traffic flow aggregate

Any allowed value

Traffic flow aggregate

RELEASE-REQUESTED

Number of packet filters

Greater than 0 and less than or equal to 16

E bit

Any allowed value

TFT operation code

‘101’B

Delete packet filters from existing TFT

Packet filter list

Any allowed value

Parameters list

Not present or any allowed value

Required traffic flow QoS

Not present or any allowed value

ESM cause

Not present

‘0010 0100’B

Regular deactivation

RELEASE-REQUESTED

Protocol configuration options

Not present or any allowed value

NBIFOM container

Not present or any allowed value

Header compression configuration

Not present or any allowed value

Extended protocol configuration options

Not present or any allowed value

Condition

Explanation

RELEASE-REQUESTED

UE requests the release of bearer resources.

NOTE: This message is always sent within SECURITY PROTECTED NAS MESSAGE message.

Table 4.7.3-9: (Void)

Table 4.7.3-10: (Void)

– DEACTIVATE EPS BEARER CONTEXT ACCEPT

This message is sent by the UE to the SS.

Table 4.7.3-11: DEACTIVATE EPS BEARER CONTEXT ACCEPT

Derivation Path: 24.301 clause 8.3.9

Information Element

Value/remark

Comment

Condition

Protocol discriminator

ESM

EPS bearer identity

The same value as the value set in DEACTIVATE EPS BEARER CONTEXT REQUEST message.

Procedure transaction identity

‘0000 0000’B

No procedure transaction identity assigned

Deactivate EPS bearer context accept message identity

‘1100 1110’B

Deactivate EPS bearer context accept

Protocol configuration options

Not present or any allowed value

Extended protocol configuration options

Not present or any allowed value

NOTE: This message is always sent within SECURITY PROTECTED NAS MESSAGE message.

– DEACTIVATE EPS BEARER CONTEXT REQUEST

This message is sent by the SS to the UE.

Table 4.7.3-12: DEACTIVATE EPS BEARER CONTEXT REQUEST

Derivation Path: 24.301 clause 8.3.10

Information Element

Value/remark

Comment

Condition

Protocol discriminator

ESM

EPS bearer identity

Set according to specific message content.

Procedure transaction identity

‘0000 0000’B

No procedure transaction identity assigned

NETWORK-INITIATED

The same value as the value set in PDN DISCONNECT REQUEST message or BEARER RESOURCE MODIFICATION REQUEST message.

UE-INITIATED

Deactivate EPS bearer context request message identity

‘1100 1101’B

Deactivate EPS bearer context request

ESM cause

Set according to specific message content.

Protocol configuration options

Not present

NBIFOM container

Not present

Extended protocol configuration options

Not present

Condition

Explanation

NETWORK-INITIATED

Network initiated ESM procedures

UE-INITIATED

UE initiated ESM procedures

NOTE: This message is always sent within SECURITY PROTECTED NAS MESSAGE message.

– ESM DATA TRANSPORT

This message is sent by the UE or by the SS.

Table 4.7.3-12A: ESM DATA TRANSPORT

Derivation Path: 24.301 clause 8.3.25

Information Element

Value/remark

Comment

Condition

Protocol discriminator

ESM

EPS bearer identity

‘0000’B

No EPS bearer identity assigned

Procedure transaction identity

Any value from 1 to 254

ESM data transport message identity

‘1110 1011’B

ESM data transport

User data container

set according to specific message content

Release assistance indication

Not present or set according to specific message content

NOTE: This message is always sent within SECURITY PROTECTED NAS MESSAGE message.

– ESM DUMMY MESSAGE

This message is sent by the SS to the UE or by the UE to the SS.

Table 4.7.3-12B: ESM DUMMY MESSAGE

Derivation Path: 24.301 clause 8.3.12A

Information Element

Value/remark

Comment

Condition

Protocol discriminator

ESM

EPS bearer identity

‘0000’B

No EPS bearer identity assigned

Procedure transaction identity

The value indicated in ESM DUMMY MESSAGE message.

ESM information request message identity

‘1101 1100’B

ESM dummy message

NOTE: This message is always sent within SECURITY PROTECTED NAS MESSAGE message.

– ESM INFORMATION REQUEST

This message is sent by the SS to the UE.

Table 4.7.3-13: ESM INFORMATION REQUEST

Derivation Path: 24.301 clause 8.3.11

Information Element

Value/remark

Comment

Condition

Protocol discriminator

ESM

EPS bearer identity

‘0000’B

No EPS bearer identity assigned

Procedure transaction identity

The value indicated in PDN CONNECTIVITY REQUEST message.

ESM information request message identity

‘1101 1001’B

ESM information request

NOTE: This message is always sent within SECURITY PROTECTED NAS MESSAGE message.

– ESM INFORMATION RESPONSE

This message is sent by the UE to the SS.

Table 4.7.3-14: ESM INFORMATION RESPONSE

Derivation Path: 24.301 clause 8.3.12

Information Element

Value/remark

Comment

Condition

Protocol discriminator

ESM

EPS bearer identity

‘0000’B

No EPS bearer identity assigned

Procedure transaction identity

The same value as the value set in ESM INFORMATION REQUEST message.

ESM information response message identity

‘1101 1010’B

ESM information response

Access point name

Not present or any allowed value

Internet_APN

Access point name

Not present

IMS_APN_Default

Access point name

Any allowed value

IMS_APN_Provided

Protocol configuration options

Not present or any allowed value

NOT (pc_NB or pc_NonIP_PDN)

Protocol configuration options

If present including at least the following container

Interworking_with_5GS

Container ID n

‘001A’H

n assigned to next available number

Length of container ID n contents

1 octet

Container ID n contents

PDU session ID

PDU session ID assigned by the UE

Protocol configuration options

Not present

pc_NB or pc_NonIP_PDN

Extended protocol configuration options

Not present or any allowed value

Extended protocol configuration options

If present including at least the following container

Interworking_with_5GS

Container ID n

‘001A’H

n assigned to next available number

Length of container ID n contents

1 octet

Container ID n contents

PDU session ID

PDU session ID assigned by the UE

Condition

Expression

Explanation

IMS_APN_Provided

pc_IMS AND
NOT pc_Provide_IMS_as_second_APN AND
pc_Provide_IMS_APN

IMS APN shall be provided by the UE:

IMS_APN_Default

pc_IMS AND
NOT pc_Provide_IMS_as_second_APN AND
NOT pc_Provide_IMS_APN

No IMS APN shall be provided by the UE;
IMS APN is default APN

Internet_APN

NOT pc_IMS OR pc_Provide_IMS_as_second_APN

Interworking_with_5GS

If the UE has indicated support of N1, then the SS shall include this IE to provide details for the interworking with 5GS. Applicable to 5G test cases defined in TS 38.523-1 [71].

Note: The PDU session ID container shall be sent in either the Protocol configuration options or the Extended protocol configuration options IE.

NOTE: This message is always sent within SECURITY PROTECTED NAS MESSAGE message.

– ESM STATUS

This message is sent by the UE or by the SS.

Table 4.7.3-15: ESM STATUS

Derivation Path: 24.301 clause 8.3.13

Information Element

Value/remark

Comment

Condition

Protocol discriminator

ESM

EPS bearer identity

Set according to specific message content.

Procedure transaction identity

‘0000 0000’B

No procedure transaction identity assigned

ESM status message identity

‘1110 1000’B

ESM status

ESM cause

Set according to specific message content.

NOTE: This message is always sent within SECURITY PROTECTED NAS MESSAGE message.

– MODIFY EPS BEARER CONTEXT ACCEPT

This message is sent by the UE to the SS.

Table 4.7.3-16: MODIFY EPS BEARER CONTEXT ACCEPT

Derivation Path: 24.301 clause 8.3.14

Information Element

Value/remark

Comment

Condition

Protocol discriminator

ESM

EPS bearer identity

The same value as the value set in MODIFY EPS BEARER CONTEXT REQUEST message.

Procedure transaction identity

‘0000 0000’B

No procedure transaction identity assigned

Modify EPS bearer context accept message identity

‘1100 1010’B

Modify EPS bearer context accept

Protocol configuration options

Not present or any allowed value

NBIFOM container

Not present or any allowed value

Extended protocol configuration options

Not present or any allowed value

NOTE: This message is always sent within SECURITY PROTECTED NAS MESSAGE message.

– MODIFY EPS BEARER CONTEXT REJECT

This message is sent by the UE to the SS.

Table 4.7.3-17: MODIFY EPS BEARER CONTEXT REJECT

Derivation Path: 24.301 clause 8.3.15

Information Element

Value/remark

Comment

Condition

Protocol discriminator

ESM

EPS bearer identity

The same value as the value set in MODIFY EPS BEARER CONTEXT REQUEST message.

Procedure transaction identity

‘0000 0000’B

No procedure transaction identity assigned

Modify EPS bearer context reject message identity

‘1100 1011’B

Modify EPS bearer context reject

ESM cause

The value is set according to specific message content.

Protocol configuration options

Not present

NBIFOM container

Not present

Extended protocol configuration options

Not present

NOTE: This message is always sent within SECURITY PROTECTED NAS MESSAGE message.

– MODIFY EPS BEARER CONTEXT REQUEST

This message is sent by the SS to the UE.

Table 4.7.3-18: MODIFY EPS BEARER CONTEXT REQUEST

Derivation Path: 24.301 clause 8.3.16

Information Element

Value/remark

Comment

Condition

Protocol discriminator

ESM

EPS bearer identity

Set according to specific message content.

Procedure transaction identity

‘0000 0000’B

No procedure transaction identity assigned

NETWORK-INITIATED

The same value as the value set in BEARER RESOURCE MODIFICATION REQUEST message or BEARER RESOURCE ALLOCATION REQUEST message.

UE-INITIATED

Modify EPS bearer context request message identity

‘1100 1001’B

Modify EPS bearer context request

New EPS QoS

Use the same value as used in Activate EPS Bearer Context Request message

TFT

According to reference dedicated EPS bearer context #2 except for TFT operation code which is set to ‘100’B and TFT identifier is set to ‘00110000’B..

New QoS

Not Present.

Negotiated LLC SAPI

Not Present.

Radio priority

Not Present.

Packet flow Identifier

Not Present.

‘0000 0000’B

Best Effort

pc_GERAN

APN-AMBR

Not Present.

Protocol configuration options

Not present

WLAN offload container

Not present

NBIFOM container

Not present

Header compression configuration

Not present

Extended protocol configuration options

Not present

Condition

Explanation

NETWORK-INITIATED

Network initiated ESM procedures

UE-INITIATED

UE initiated ESM procedures

NOTE: This message is always sent within SECURITY PROTECTED NAS MESSAGE message.

– NOTIFICATION

This message is sent by the SS to the UE.

Table 4.7.3-18A: NOTIFICATION

Derivation Path: 24.301 clause 8.3.18A

Information Element

Value/remark

Comment

Condition

Protocol discriminator

ESM

EPS bearer identity

‘0000’B

No EPS bearer identity assigned

The same value as the value set in ACTIVATE DEFAULT EPS BEARER CONTEXT REQUEST message for IMS signalling.

SRVCC-HO-CANCELLED

Procedure transaction identity

‘0000 0000’B

No procedure transaction identity assigned

Notification message identity

‘1101 1011’B

Notification

Notification indicator

‘0000 0001’B

SRVCC handover cancelled, IMS session re-establishment required

SRVCC-HO-CANCELLED

Condition

Explanation

SRVCC-HO-CANCELLED

Used if SRVCC handover is cancelled.

NOTE: This message is always sent within SECURITY PROTECTED NAS MESSAGE message.

– PDN CONNECTIVITY REJECT

This message is sent by the SS to the UE.

Table 4.7.3-19: PDN CONNECTIVITY REJECT

Derivation Path: 24.301 clause 8.3.17

Information Element

Value/remark

Comment

Condition

Protocol discriminator

ESM

EPS bearer identity

‘0000’B

No EPS bearer identity assigned

Procedure transaction identity

The same value as the value set in PDN CONNECTIVITY REQUEST message.

PDN connectivity reject message identity

‘1101 0001’B

PDN connectivity reject

ESM cause

The value is set according to specific message content.

Protocol configuration options

Not present

NBIFOM container

Not present

Extended protocol configuration options

Not present

NOTE: This message is sent without integrity protection before NAS security mode control procedure has been successfully completed and sent within SECURITY PROTECTED NAS MESSAGE message after NAS security mode control procedure has been successfully completed.

– PDN CONNECTIVITY REQUEST

This message is sent by the UE to the SS.

Table 4.7.3-20: PDN CONNECTIVITY REQUEST

Derivation Path: 24.301 clause 8.3.20

Information Element

Value/remark

Comment

Condition

Protocol discriminator

ESM

EPS bearer identity

‘0000’B

No EPS bearer identity assigned

Procedure transaction identity

Any value from 1 to 254

PDN connectivity request message identity

‘1101 0000’B

PDN connectivity request

Request type

‘0001’B

initial request

PDN type

Any value between ‘001’B, ‘010’B, ‘011’B and ‘100’B

The allowed values are respectively IPv4, IPv6, IPv4v6 and "unused but interpreted as IPv6 by the network"

PDN type

‘101’B

Non-IP

CIoT_CP_NON_IP

ESM information transfer flag

Not present or any allowed value

Access point name

Not present

The value is mandatory when the PDN CONNECTIVITY REQUEST message is sent together with an ATTACH REQUEST message.

Protocol configuration options

Not present or any allowed value

The value received from the UE does not affect the possible verdict associated with the message when received by the SS. The SS shall remember if this IE is present and its contents because this affects subsequent SS behaviour, e.g. coding of ACTIVATE DEFAULT EPS BEARER CONTEXT REQUEST.

NOT (pc_NB or pc_NonIP_PDN)

Protocol configuration options

Not present

pc_NB or pc_NonIP_PDN

Protocol configuration options

If present including at least the following container

Interworking_with_5GS

Container ID n

‘001A’H

n assigned to next available number

Length of container ID n contents

1 octet

Container ID n contents

PDU session ID

PDU session ID assigned by the UE

NBIFOM container

Not present or any allowed value

Header compression configuration

Not present or any allowed value

Extended protocol configuration options

Not present or any allowed value

Extended protocol configuration options

If present including at least the following container

Interworking_with_5GS

Container ID n

‘001A’H

n assigned to next available number

Length of container ID n contents

1 octet

Container ID n contents

PDU session ID

PDU session ID assigned by the UE

Condition

Explanation

CIoT_CP_NON_IP

If the UE requests a Non-IP type PDN

Interworking_with_5GS

If the UE has indicated support of N1, then the SS shall include this IE to provide details for the interworking with 5GS. Applicable to 5G test cases defined in TS 38.523-1 [71].

Note: The PDU session ID container shall be sent in either the Protocol configuration options or the Extended protocol configuration options IE.

NOTE: This message is sent without integrity protection before NAS security mode control procedure has been successfully completed and sent within SECURITY PROTECTED NAS MESSAGE message after NAS security mode control procedure has been successfully completed.

– PDN DISCONNECT REJECT

This message is sent by the SS to the UE.

Table 4.7.3-21: PDN DISCONNECT REJECT

Derivation Path: 24.301 clause 8.3.19

Information Element

Value/remark

Comment

Condition

Protocol discriminator

ESM

EPS bearer identity

‘0000’B

No EPS bearer identity assigned

Procedure transaction identity

The value indicated in PDN DISCONNECT REQUEST message.

PDN disconnect reject message identity

‘1101 0011’B

PDN disconnect reject

ESM cause

Set according to specific message content.

Protocol configuration options

Not present

Extended protocol configuration options

Not present

NOTE: This message is always sent within SECURITY PROTECTED NAS MESSAGE message.

– PDN DISCONNECT REQUEST

This message is sent by the UE to the SS.

Table 4.7.3-22: PDN DISCONNECT REQUEST

Derivation Path: 24.301 clause 8.3.20

Information Element

Value/remark

Comment

Condition

Protocol discriminator

ESM

EPS bearer identity

‘0000’B

No EPS bearer identity assigned

Procedure transaction identity

Any value from 1 to 254

PDN disconnect request message identity

‘1101 0010’B

PDN disconnect request

Linked EPS bearer identity

The EPS bearer identity of the associated default bearer.

Spare half octet

‘0000’B

Protocol configuration options

Not present or any allowed value

Extended protocol configuration options

Not present or any allowed value

NOTE: This message is always sent within SECURITY PROTECTED NAS MESSAGE message.