14.1.2 Generic test procedure for testing multi-RB combinations and simultaneous signalling

34.123-13GPPPart 1: Protocol conformance specificationRelease 15TSUser Equipment (UE) conformance specification

This procedure is used to test multiple radio bearer combinations. This procedure is also used to verify simultaneous transmission and reception of user data and signalling data.

Initial conditions

UE in idle mode

Test procedure

a) The SS establish the reference radio bearer configuration as specified in TS 34.108, clause 6.10 for the actual radio bearer test. For the case when the reference radio bearer configuration includes radio bearers for both CS and PS domain then the radio bearer setup procedure has to be performed once per domain. The first radio bearer setup procedure shall perform configuration of the physical channel for the radio bearer combination under test as well as the transport channels for the CS radio bearer(s),also the transport format combination set for only CS radio bearers has to provided. The second radio bearer procedure shall perform the configuration for the transport channel for the PS radio bearers . The Physical channel configuration shall be done for both CS and PS radio bearers combined. Here the transport format combination set for both CS and PS radio bearers shall be provided.

b) The SS limits the UE allowed uplink transport format combinations according to the "Restricted UL TFCIs", as specified for the sub-test of the actual radio bearer test, using the RRC transport format combination control procedure. See note 1.

c) The SS closes the test loop using UE test loop mode 1 and setting the UL RLC SDU size parameter, for all radio bearers under test, according to the "UL RLC SDU size" value as specified for the sub-test of the actual radio bearer test. See note 2.

d) The SS starts transmitting continuous test data for all radio bearers under test. The number of RLC SDUs to transmit every TTI and the size "Test data size" is specified for each sub-test of the actual radio bearer test. See note 3.

e) The SS waits to receive an UL RLC SDU on each RB. The SS waits a maximum time of T1 for this to occur, where T1 is equal to 12 times the largest TTI. See note 4

f) SS transmits a MEASUREMENT CONTROL message requesting periodic reporting with a period of T2.

g) SS waits the time equal to 4 times T2

h) During step e) to g) the SS checks that, for all radio bearers under test, the content of the received RLC SDUs have the correct content and is received having the correct transport format. See TS 34.109 [10] clause 5.3.2.6.2 for details regarding the UE loopback of RLC SDUs.

i) The SS opens the UE test loop.

j) Steps b) to i) are repeated for all sub-tests

h) The SS may optionally release the radio bearer.

i) The SS may optionally deactivate the radio bearer test mode.

NOTE 1: The restricted set of TFCIs shall contain all possible TFCI that could happen in a sub-test. The actual TTI of the different radio bearers and signalling radio bearers as well as the possible UE processing delays shall be taken into consideration. The restricted set of TFCIs must comply with the minimum set of TFCIs as specified in TS 25.331, clause 8.6.5.2.

NOTE 2: Selection of UL RLC SDU size parameter:
For the case when the reference radio bearer configuration under test uses RLC transparent mode in downlink and is not configured for segmented operation then the radio bearer test case shall set the UL RLC SDU size equal to the UL RLC PDU size. See [7] TS 25.322 for details regarding UE operation in RLC transparent mode. In case the reference radio bearer configuration under test does not use RLC transparent mode then, as the test procedure is based on continuous downlink transmission of test data in sub-sequent TTIs, the UL RLC SDU size parameter shall be selected to adopt to the uplink data rate and to the uplink/downlink TTI ratio. Selection of UL RLC SDU size for the different radio bearers under test should be such that the UE returns data in sub-sequent TTIs without causing the UE transmission buffer to become full. To achieve this the UL RLC SDU size shall be set to UL TF payload size under test, divided by the ratio between downlink and uplink TTI , minus the size of length indicator and expansion bit, . E.g. for a AM radio bearer having the uplink RLC payload size equal to 320, the downlink TTI equal to 10 ms, and the uplink TTI equal to 20 ms, then for the transport format 4×336 (TF payload size = 4×320=1280 bits) the UL RLC SDU size parameter should be set to 632 bits (=(1280bits/(20ms/10ms))- 8 bits).

NOTE 3: Selection of test data size:
For the case when the reference radio bearer configuration under test uses RLC transparent mode in downlink and is not configured for segmented operation then the radio bearer test case shall use a DL RLC SDU size (defined by the "Test data size" parameter) equal to the DL RLC PDU size. See [7] TS 25.322 for details regarding UE operation in RLC transparent mode. In case the reference radio bearer configuration under test does not use RLC transparent mode in downlink, the DL RLC SDU size/ test data size shall be set equal to the payload size of the DL TF under test minus the size of the length indicator and the expansion bit.

NOTE 4: [10] TS 34.109 clause 5.3.2.9 defines the loopback delay requirement for UE test loop mode 1 to be max 10 times actual TTI of a radio bearer when RLC and MAC is operated in transparent mode. As RLC/MAC may be operated in non-transparent modes depending on the actual reference radio bearer configuration to be tested an additional 2 TTI have been added to secure that UE starts transmitting data in uplink before SS transmit the MEASUREMENT CONTROL message.

Expected sequence

CS paging procedure

Step	Direction		Message	Comments
	UE	SS
1	<–		SYSTEM INFORMATION (BCCH)	Broadcast
2	<–		PAGING TYPE 1 (PCCH)	Paging (CS domain, TMSI)
3	–>		RRC CONNECTION REQUEST (CCCH)	RRC
4	<–		RRC CONNECTION SETUP (CCCH)	RRC
5	–>		RRC CONNECTION SETUP COMPLETE (DCCH)	RRC
6	–>		PAGING RESPONSE (DCCH)	RR
6a	<–		AUTHENTICATION REQUEST
6b	–>		AUTHENTICATION RESPONSE
6c	<–		SECURITY MODE COMMAND
6d	–>		SECURITY MODE COMPLETE

PS paging procedure

Step	Direction		Message	Comments
	UE	SS
1	<–		SYSTEM INFORMATION (BCCH)	Broadcast
2	<–		PAGING TYPE 1 (PCCH)	Paging (PS domain, P-TMSI)
3	–>		RRC CONNECTION REQUEST (CCCH)	RRC
4	<–		RRC CONNECTION SETUP (CCCH)	RRC
5	–>		RRC CONNECTION SETUP COMPLETE (DCCH)	RRC
6a	–>		SERVICE REQUEST (DCCH)	GMM
6b	<–		SECURITY MODE COMMAND	RRC see note 1
6c	–>		SECURITY MODE COMPLETE	RRC see note 1

NOTE 1: In addition to activate integrity protection Step 6b and Step 6c are inserted in order to stop T3317 timer in the UE, which starts after transmitting SERVICE REQUEST message.

Step		Direction		Message	Comments
		UE	SS
1..6		<– –>		Paging	Use the CS paging procedure for testing of CS and combined CS/PS reference radio bearer configurations. Use the PS paging procedure for testing of PS reference radio bearer configurations.
Case A: CS or PS radio bearers only
A7		<–		ACTIVATE RB TEST MODE (DCCH)	TC
A8		–>		ACTIVATE RB TEST MODE COMPLETE (DCCH)	TC
A9		<–		RADIO BEARER SETUP (DCCH)	RRC Channelization code must be set to SF – 1 for the DL DPCH configured. PS radio bearer(s) are configured. For the PS radio bearer(s) the ‘pdcp info’ IE must be omitted. Secondary Scrambling Code IE must be omitted
A10		–>		RADIO BEARER SETUP COMPLETE (DCCH)	RRC
Case B: CS + PS radio bearers
B7	<–			PAGING TYPE 2 (DCCH)	TMSI (GSM-MAP)/ P-TMSI
B7a	–>			SERVICE REQUEST (DCCH)	GMM
B7b	<–			SECURITY MODE COMMAND	RRC See note
B7c	–>			SECURITY MODE COMPLETE	RRC See note
B8	<–			ACTIVATE RB TEST MODE (DCCH)	TC
B8a	–>			ACTIVATE RB TEST MODE COMPLETE (DCCH)	TC
B9		<–		RADIO BEARER SETUP (DCCH)	RRC CS radio bearer(s) are configured
B10		–>		RADIO BEARER SETUP COMPLETE (DCCH)	RRC
B10a				Void
B10b				Void
B10c		<–		RADIO BEARER SETUP (DCCH)	RRC Channelization code must be set to SF – 1 for the DL DPCH configured. Secondary Scrambling Code IE must be omitted PS radio bearer(s) are configured. For the PS radio bearer the poll-SDU value must be set to 4 and the ‘pdcp info’ IE must be omitted.
B10d		–>		RADIO BEARER SETUP COMPLETE (DCCH)	RRC
11		<–		TRANSPORT FORMAT COMBINATION CONTROL (DCCH)	RRC Transport format combinations is limited to "Restricted UL TFCIs", as specified for the sub-test
12		<–		CLOSE UE TEST LOOP (DCCH)	TC UE test mode 1 RLC SDU size is for every active radio bearer set to "UL RLC SDU size", as specified for the sub-test.
13		–>		CLOSE UE TEST LOOP COMPLETE (DCCH)	TC
14a		<– –>		Test data	SS sends continuous test data in every TTI using the downlink transport format combination under test. The number of RLC SDUs and their sizes are specified in the actual test case. SS checks returned data
14b				Wait T1	SS continues to send data every TTI and check the returned data for a maximum time of T1 for the first UL RLC SDU to be received on each RB. T1 = 12 times the max TTI in the actual radio bearer combination under test
15a		<– –> <–		Test data (DTCH) + MEASUREMENT CONTROL (DCCH)	SS continues sending test data in every TTI. SS sends a MEASUREMENT CONTROL message simultaneously to the test data requesting periodic reporting at interval T2
15b		<– –> –>		Test data (DTCH) + MEASUREMENT REPORT (DCCH)	SS continues to send data in every TTI and check the returned data for time 4xT2 SS checks that at least one MEASUREMENT REPORT message is received
16		<–		OPEN UE TEST LOOP (DCCH)	TC
17		–>		OPEN UE TEST LOOP COMPLETE (DCCH)	TC
18				Repeat steps 11 to 17 for every sub-test.
19				RB RELEASE (DCCH)	RRC Optional step
20		<–		DEACTIVATE RB TEST MODE (DCCH)	TC Optional step
21		–>		DEACTIVATE RB TEST MODE COMPLETE (DCCH)	TC Optional step
Note: For case B (CS+PS radio bearers) the second security mode procedure is needed to enable testing of ciphering on the PS radio bearers. For the CS domain the security mode procedure is performed as part of the CS paging procedure.