U-S

Message

0

The SS transmits an RRCConnectionRelease-NB message

<-

RRCConnectionRelease-NB

–

–

0A

‘Generic Test Procedure NB-IoT Control Plane CIoT MT user data transfer non-SMS transport’ as described in TS 36.508 [18], clause 8.1.5A.2.3 are performed

–

–

–

–

0B

The SS transmits one IP packet to the UE embedded in a ESM DATA TRANSPORT and DLInformationTransfer-NB

<–

NAS: ESM DATA TRANSPORT

–

–

0C

Wait for 1 s after the IP packet has been transmitted in step 0B. (Note 1)

–

–

–

–

0D

Void.

–

–

–

–

1

The SS transmits an RRCConnectionRelease-NB message on Ncell 1 with IE extendedwaitTime set to 60s.

<–

RRCConnectionRelease-NB

–

–

2

Void

–

–

2A

Check: Does the UE ignore extendedwaitTime and transmit an RRCConnectionRequest-NB message on Ncell 1 within 60s (extendedwaitTime)?

–>

RRCConnectionRequest-NB

1

P

3

Void

3A

Void

–

–

–

–

–

3A1-3A3

Steps 2 to 4 of the ‘Generic Test Procedure NB-IoT Control Plan CIoT MO user data transfer non-SMS transport’ as described in TS 36.508 [18], clause 8.1.5A.3.3 are performed.

NOTE: The UE will transmit one ESM DATA TRANSPORT message containing loopback data received in step 0B.

–

–

–

–

3A5

The SS transmits an RRCConnectionRelease-NB message

<–

RRCConnectionRelease-NB

–

–

Void

–

–

–

–

3B

‘Generic Test Procedure NB-IoT Control Plane CIoT MT user data transfer non-SMS transport’ as described in TS 36.508 [18], clause 8.1.5A.2.3 are performed

–

–

–

–

3BA

The SS transmits a CLOSE UE TEST LOOP message to close the UE test loop mode for user data transfer (15 sec delay).

<–

RRC: DLInformationTransfer-NB

TC: CLOSE UE TEST LOOP

–

–

3BB

The UE transmits a CLOSE UE TEST LOOP COMPLETE message to confirm that loopback is activated.

–>

RRC: ULInformationTransfer-NB

TC: CLOSE UE TEST LOOP COMPLETE

–

–

3C

The SS transmits one IP packet to the UE embedded in a ESM DATA TRANSPORT and DLInformationTransfer-NB

<–

NAS: ESM DATA TRANSPORT

–

–

3D

Wait for 1 s after the IP packet has been transmitted. (Note 1)

–

–

–

–

3E

The SS transmits an RRCConnectionRelease-NB message

<–

RRCConnectionRelease-NB

–

–

3F

Void.

–

–

–

–

4

Void

–

–

–

–

5

UE transmits an RRCConnectionRequest-NB message.

–>

RRCConnectionRequest-NB

–

–

6

The SS responds with RRCConnectionReject-NB message with IE extendedwaitTime set to 60s.

<–

RRCConnectionReject-NB

–

–

6A

Check: Does the UE transmit an RRCConnectionRequest-NB message on Ncell 1 within 60s?

–>

RRCConnectionRequest-NB

2

F

6B

The SS starts timer Timer_1 = 8 s

–

–

–

–

–

EXCEPTION: Steps 6Ba1 to 6Bb1 describe a transaction that depends on the UE behaviour; the “lower case letter” identifies a test sequence that takes place if a specific behaviour happens (Note 2)

–

–

–

–

6Ba1-6Ba4

Steps 1 to 4 of the ‘Generic Test Procedure NB-IoT Control Plan CIoT MO user data transfer non-SMS transport’ as described in TS 36.508 [18], clause 8.1.5A.3.3 are performed.

NOTE: The UE will transmit one ESM DATA TRANSPORT message containing loopback data received in step 3C.

–

–

–

–

5Ba5

The SS transmits an RRCConnectionRelease-NB message

<–

RRCConnectionRelease-NB

–

–

6Bb1

The SS waits for Timer_1 expiry

–

–

–

–

7-11

Void

–

–

–

–

12b1

Void

–

–

–

Information Element

Value/Remark

Comment

Condition

UE test loop mode

‘00000110’B

UE test loop mode G setup

TL_MODE_G

Operation mode and repetitions

M0

0

return_via_EMM_SMC

R6..R0

‘0000001’B

1

The received DL message in uplink shall be looped back 1 time (once)

Uplink data delay

‘00001111’B

T_delay_modeGH timer=15 sec

Information Element

Value/remark

Comment

Condition

RRCConnectionRelease-NB ::= SEQUENCE {

rrc-TransactionIdentifier

RRC-TransactionIdentifier-DL

criticalExtensions CHOICE {

c1 CHOICE {

rrcConnectionRelease-r13 SEQUENCE {

releaseCause-r13

other

extendedWaitTime-r13

60

60 seconds

}

}

}

}

Information Element

Value/remark

Comment

Condition

RRCConnectionReject-NB ::= SEQUENCE {

criticalExtensions CHOICE {

c1 CHOICE {

rrcConnectionReject-r13 SEQUENCE {

extendedWaitTime-r13

60

60 seconds

}

}

}

}