U – S

Message

–

EXCEPTION: Steps 1a1 to 1b1 describe behaviour that depends on the UE capability; the "lower case letter" identifies a step sequence that take place if [36] pc_SwitchOnOff or [37] pc_USIM_Removal is supported

–

–

1a1

IF pc_SwitchOnOff THEN switch off UE, IF pc_USIM_Removal THEN remove the USIM (Note 1)

–

–

1a2

UE transmits an RRCSetupRequest message.

–>

RRC: RRCSetupRequest

1a3

SS transmit an RRCSetup message.

<–

RRC: RRCSetup

–

EXCEPTION: Steps 1a4Aa1 to 1a4Aa5b1 specify optional behaviour if the UE has previously performed IMS registration

–

–

1a4Aa1

The UE transmits an RRCSetupComplete message to confirm the successful completion of the connection establishment and to initiate the IMS signalling procedure by including the SERVICE REQUEST message.

–>

RRC: RRCSetupComplete

5GMM: SERVICE REQUEST

1a4Aa2

The SS transmits a SecurityModeCommand message to activate AS security.

<–

RRC: SecurityModeCommand

1a4Aa3

The UE transmits a SecurityModeComplete message and establishes the initial security configuration.

–>

RRC: SecurityModeComplete

1a4Aa4

The SS transmits an RRCReconfiguration message and a SERVICE ACCEPT message to establish SRB2 and DRB.

<–

RRC: RRCReconfiguration

5GMM: SERVICE ACCEPT

–

EXCEPTION: In parallel to the event described in step 1a4Aa5 below, the generic test procedure in TS 34.229-5 [47] Annex A.11 may be performed.

–

–

1a4Aa5

The UE transmits an RRCReconfigurationComplete message.

–>

RRC: RRCReconfigurationComplete

–

EXCEPTION: Steps 1a4Aa5a1 – 1a4Aa5b1 may be performed depending on UE implementation

–

–

1a4Aa5a1

The UE transmits a PDU SESSION RELEASE REQUEST message.

–>

PDU SESSION RELEASE REQUEST

1a4Aa5a2

PDU session release procedure defined in clause 4.9.21 of TS 38.508-1 [4] is performed

–

–

1a4Aa5a3

The UE transmits a DEREGISTRATION REQUEST message.

–>

5GMM: DEREGISTRATION REQUEST

1a4Aa5b1

The UE transmits a DEREGISTRATION REQUEST message

–

5GMM: DEREGISTRATION REQUEST

–

EXCEPTION: Step 1a4Ab1 below specifies the behaviour if the UE has not previously performed IMS registration

–

–

1a4Ab1

The UE transmits an RRCSetupComplete message including the DEREGISTRATION REQUEST message.

–>

RRC: RRCSetupComplete

5GMM: DEREGISTRATION REQUEST

1a4

Void

–

–

1a5

The SS transmits an RRCRelease message

<–

RRC: RRCRelease

1b1

ELSE power off UE (Note 2)

–

–

U – S

Message

–

EXCEPTION: Steps 1a1 to 1b1 describe behaviour that depends on the UE capability; the "lower case letter" identifies a step sequence that take place if [36] pc_SwitchOnOff or [37] pc_USIM_Removal is supported

–

–

1a1

IF pc_SwitchOnOff THEN switch off UE, IF pc_USIM_Removal THEN remove the USIM (Note 1)

–

–

1a2

UE transmits an RRCResumeRequest message.

–>

NR RRC: RRCResumeRequest

1a3

SS transmit an RRCResume message.

<–

NR RRC: RRCResume

–

EXCEPTION: Steps 1a4Aa1 to 1a4Aa5b1 specify optional behaviour if the UE has previously performed IMS registration

–

–

1a4Aa1

The UE transmits an RRCResumeComplete message to confirm the successful completion of the connection establishment and to initiate the IMS signalling procedure by including the SERVICE REQUEST message.

–>

RRC: RRCResumeComplete

5GMM: SERVICE REQUEST

1a4Aa2

The SS transmits a SecurityModeCommand message to activate AS security.

<–

RRC: SecurityModeCommand

1a4Aa3

The UE transmits a SecurityModeComplete message and establishes the initial security configuration.

–>

RRC: SecurityModeComplete

1a4Aa4

The SS transmits an RRCReconfiguration message and a SERVICE ACCEPT message to establish SRB2 and DRB.

<–

RRC: RRCReconfiguration

5GMM: SERVICE ACCEPT

–

EXCEPTION: In parallel to the event described in step 1a4Aa5 below, the generic test procedure in TS 34.229-5 [47] Annex A.11 may be performed.

–

–

1a4Aa5

The UE transmits an RRCReconfigurationComplete message.

–>

RRC: RRCReconfigurationComplete

–

EXCEPTION: Steps 1a4Aa5a1 – 1a4Aa5b1 may be performed depending on UE implementation

–

–

1a4Aa5a1

The UE transmits a PDU SESSION RELEASE REQUEST message.

–>

PDU SESSION RELEASE REQUEST

1a4Aa5a2

PDU session release procedure defined in clause 4.9.21 of TS 38.508-1 [4] is performed

–

–

1a4Aa5a3

The UE transmits a DEREGISTRATION REQUEST message.

–>

5GMM: DEREGISTRATION REQUEST

1a4Aa5b1

The UE transmits a DEREGISTRATION REQUEST message

–

5GMM: DEREGISTRATION REQUEST

–

EXCEPTION: Step 1a4Ab1 below specifies the behaviour if the UE has not previously performed IMS registration

–

–

1a4

Void

–

–

1a5

The SS transmits an RRCRelease message

<–

NR RRC: RRCRelease

1b1

ELSE power off UE (Note 2)

–

–

Information Element

Value/remark

Comment

Condition

RRCResumeRequest ::= SEQUENCE {

rrcResumeRequest SEQUENCE {

resumeIdentity

Not checked

resumeMAC-I

Not checked

resumeCause

Not checked

spare

Not checked

}

}

U – S

Message

1a1-1a3

Void

–

–

2-4

Void

–

–

–

EXCEPTION: Steps 5a1 to 5b1 describe behaviour that depends on the UE implementation; the "lower case letter" identifies a step sequence that take place if a particular implementation is under test.

–

–

5a1

IF pc_SwitchOnOff THEN switch off UE, IF pc_USIM_Removal THEN remove the USIM (Note 1)

–

EXCEPTION : Step 5a1Aa1 to 5a2Ab1 below specifies optional behaviour if the UE has previously performed IMS registration

–

–

5a1Aa1

The UE may perform the generic test procedure described in TS 34.229-5 [47] Annex A.11

–

–

–

EXCEPTION: Steps 5a2Aa1a1 – 5a2Ab1 may be performed depending on UE implementation

–

–

5a2Aa1a1

The UE transmits a PDU SESSION RELEASE REQUEST message.

–>

PDU SESSION RELEASE REQUEST

5a2Aa1a2

PDU session release procedure defined in clause 4.9.21 of TS 38.508-1 [4] is performed

–

–

5a2Aa1a3

The UE transmits a DEREGISTRATION REQUEST message.

–>

5GMM: DEREGISTRATION REQUEST

5a2Ab1

The UE transmits a DEREGISTRATION REQUEST message.

–>

5GMM: DEREGISTRATION REQUEST

5a3

The SS transmits an RRCRelease message.

<–

NR RRC: RRCRelease

5b1

ELSE power off UE (Note 2)

–

–

U – S

Message

1

SS starts timer1 = T3540 (10 sec).

–

–

2

The SS locally releases the RRC connection.

–

–

3

SS waits for Timer1 expires.

NOTE: On expiry of T3540 UE shall locally release the established N1 NAS signalling connection

–

–

4

The test procedure as described in Table 4.9.6.1-1: Switch off procedure in RRC_IDLE take place.

–

–

U – S

Message

–

EXCEPTION: Steps 1a1 to 1b1 describe behaviour that depends on the UE capability; the "lower case letter" identifies a step sequence that take place if [36] pc_SwitchOnOff or [37] pc_USIM_Removal is supported

–

–

1a1

IF pc_SwitchOnOff THEN switch off UE (Note 1)

–

–

1b1

ELSE power off UE (Note 2)

–

–

U – S

Message

–

EXCEPTION: Steps 1a1 to 1b1 describe behaviour that depends on the UE capability; the "lower case letter" identifies a step sequence that take place if [30] pc_SwitchOnOff or [31] pc_USIM_Removal is supported

–

–

1a1

IF pc_SwitchOnOff THEN switch off UE (Note 1)

–

–

1a2

The UE transmits a DEREGISTRATION REQUEST message.

–>

5GMM: DEREGISTRATION REQUEST

1a3

The generic procedure for SS-requested IPsec Secure tunnel disconnection, specified in subclause 4.5A.5, takes place performing disconnection of security association

–

–

1b1

ELSE power off UE (Note 2)

–

–