7.4 BMC

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

Tools: ARFCN - Frequency Conversion for 5G NR/LTE/UMTS/GSM

General

For BMC testing, the UE manufacturers shall define CB data as PIXIT (CB-Data 1 and 2) for different CB message types and for CB Data41 (ANSI-41 data) and it shall describe how the reception is indicated in a clear way on UE side.

Only Cell Broadcast Services (CBS) as distributed BMC service is applied. For a UE supporting BMC, it is assumed, that there is a BMC entity established, if Initial conditions are reached.

If not otherwise mentioned, the same procedures as used in RRC test specification [TS 34.123-1] are applied to reach Initial conditions for BMC testing.

It shall be possible to activate and deactivate a CB message types by using the Message ID of CB data 1, 2 and CB41 data 1 on UE side.

7.4.1 BMC RAB + SRBs for CCCH + SRB for DCCH + SRB for BCCH

7.4.1.1 Transport channel parameters of BMC RAB and SRBs for CCCH, SRB for DCCH, and SRB for BCCH

Higher layer	RAB/signalling RB		SRB#1	SRB#2	SRB#3	SRB#4	SRB#5	SRB#6	RAB#30
	User of Radio Bearer		RRC	RRC	RRC	NAS_DT High prio	NAS_DT Low prio	RRC	–
RLC	Logical channel type		CCCH	DCCH	DCCH	DCCH	DCCH	BCCH	CTCH
	RLC mode		UM	UM	AM	AM	AM	TM	UM
	Payload sizes, bit		152	136 or 120*	128	128	128	166	152
	Max data rate, bps		45600	40800 or 36000	38400	38400	38400	49800	45600
	AMD/UMD/TrD PDU header, bit		8	8	16	16	16	0	8
MAC	MAC header, bit		8	24 or 40	24	24	24	2	8
	MAC multiplexing		7 logical channel multiplexing
Layer 1	TrCH type		FACH
	TB sizes, bit		168
	TFS	TF0, bits	0x168
		TF1, bits	1×168
		TF2, bits	2×168
		TF3, bits	3×168
	TTI, ms		10
	Coding type		CC 1/2
	CRC, bit		16
	Max number of bits/TTI before rate matching		1136
	RM attribute		200-240

* MAC header size and RLC payload size depend on use of U-RNTI or C-RNTI.

7.4.1.2 TFCS

TFCS size	4
TFCS	(BMC RAB and SRBs for CCCH/DCCH/BCCH) = TF0, TF1, TF2, TF3

7.4.1.3 Physical channel parameters

SCCPCH	DTX position	Flexible
	Spreading factor	64
	Number of TFCI bits/slot	8
	Number of Pilot bits/slot	0
	Number of data bits/slot	72
	Number of data bits/frame	1080

7.4.2 General BMC message reception

7.4.2.1 UE in RRC Idle mode

7.4.2.1.1 Definition and applicability

Applicable only for a UE supporting Cell Broadcast Services (CBS) as a type of Broadcast/Multicast Services.

It shall be possible to indicate the reception of certain CBS message contents carried with certain activated CB message types in a clear way on UE side.

7.4.2.1.2 Conformance requirement

A UE supporting Cell Broadcast Services shall be capable to receive BMC messages in the RRC Idle mode.

Reference(s)

TS 25.324 clause 9.1

7.4.2.1.3 Test purpose

To verify, that a BMC configuration for a UE is able to receive activated CBS messages when in RRC Idle mode.

7.4.2.1.4 Method of test

Initial conditions

UE is in RRC Idle mode; BMC entity is established

SS: 1 cell,

NOTE: The CB message ID stored on the SIM shall be known for this test (parameter for CBS PDU’s). The CBS data type shall be allocated and activated in the UE.

Related ICS/IXIT Statement(s)

Support of BMC – Yes/No

Support of PS – Yes/No

ICS: CBS message support – YES/No

IXIT: CBS-Data 1: Octet string of N (where N1 and less than 1246)

NOTE: For CB-Data 1 IXIT, the manufacturer shall define CBS data as Octet string together with the CB message ID used for transmitting this CB data, which is indicated by the UE after reception in a clear way according to the capabilities stored on the SIM. Furthermore, the manufacturer shall describe the indication on UE side (e.g. certain CBS traffic information)

Test procedure

a) The UE in RRC Idle mode is triggered to wait for the next system information. The UE is activated to receive CBS messages,

b) The UE and the SS have configured their RLC, MAC and PHYs layers with all CB related system information, broadcasted by SS

c) The SS sends the CBS message containing an activated CBS message type according to CB-Data 1 to the UE; this shall be repeated for "CPREP" times (indicated by parameter "repetition period")

d) The UE indicates in an unambiguous way, that this message was received, by certain clear indications (e.g. a unique part of the CB data contents)

Expected sequence

Step	Direction		Message	Comments
	UE	SS
1			SYSTEM INFORMATION	Transmit this message as described below on the BCCH, in addition to the regular BCCH transmissions (see RRC test description). Included are CB related system information parameter of the CBS: – CTCH ID, – FACH ID and associated format set, – S-CCPCH ID, – BMC Schedule Level 1 information (N,K)
2				The SS waits for about 10 s to make sure, that the UE is configured to receive CBS data
3			BMC CBS Message	Activated CBS message with CB Data 1 message content as described by the manufacturer. This message shall be repeated "CPREP" times, Parameter: – Message_ID, – Serial-No, – Data coding scheme, – CB-Data 1,
4				After having received the BMC CBS message the UE shall indicate the reception of CB Data 1 in a clear way.

Specific Message Contents

SYSTEM INFORMATION TYPE 5 AND 6

The contents of SYSTEM INFORMATION TYPE 5 AND 6 Information Element in this test case are identical to those of the default contents of layer 3 messages for RRC tests [TS 34.123-1] with the following exceptions:

Information Element

Value/remark

CHOICE mode

– CTCH allocation period

– CTCH frame offset

Secondary CCPCH system

– Secondary CCPCH information

– TFCS

– FACH/PCH information

– TFS

– CTCH indicator

(see RRC default test settings)

TRUE

BMC CBS Message

Information Element

Value/remark

Message Type

Message ID

Serial Number

– Geographic Scope Indicator (2 bit)

– Message Code (10 bit)

– Update Number (4 bit)

Data Coding Scheme

CB Data

1 (CBS message)

Bitstring (16) CB message ID, it shall fit to the stored Message ID in the SIM inserted in the UE (source and type) [see TS 23.041] according to the transmitted CB-Data 1 content.

[see TS 23.041]

11 (Normal Cell wide)

in accordance with the Message ID

for a new message: 0000, incremented by one for each repetition

Bitstring (16) ID of the alphabet/coding and the applied language [see TS 23.041]

Octetstring, [see IXIT value: CB-Data 1]

7.4.2.1.5 Test requirements

The UE shall store and decode a received activated CBS message.

7.4.2.2 UE in RRC Connected mode, state CELL_PCH

7.4.2.2.1 Definition and applicability

Applicable only for a UE supporting Cell Broadcast Services (CBS) as a type of Broadcast/Multicast Services.

It shall be possible to indicate the reception of certain CBS message contents carried with certain activated CB message types in a clear way on UE side.

7.4.2.2.2 Conformance requirement

A UE supporting Cell Broadcast Service (CBS) shall be capable to receive BMC messages (…) in CELL_PCH RRC-state of Connected mode.

Reference(s)

TS 25.324 clause 9.1

7.4.2.2.3 Test purpose

To verify, that a BMC configuration for a UE is able to receive activated CBS messages when in RRC Connected mode, state CELL_PCH.

7.4.2.2.4 Method of test

Initial conditions

UE is in Connected mode state CELL_PCH; BMC entity is established

SS: 1 cell,

NOTE: The CB message ID stored on the SIM shall be known for this test (parameter for CBS PDU’s). The CBS data type shall be allocated and activated in the UE.

Related ICS/IXIT Statement(s)

ICS:

Support of BMC – Yes/No

Support of PS – Yes/No

CBS message support – YES/No

IXIT: CBS-Data 1: Octetstring of N (where N1 and less than 1246)

NOTE: For CB-Data 1 IXIT, the manufacturer shall define CBS data as Octetstring together with the CB message ID used for transmitting this CB data, which is indicated by the UE after reception in a clear way according to the capabilities stored on the SIM. Furthermore, the manufacturer shall describe the indication on UE side (e.g. certain CBS traffic information)

Test procedure

a) The UE in RRC CELL_PCH is triggered to wait for the next system information. The UE is activated to receive CBS messages.

b) The UE and the SS have configured their RLC, MAC and PHYs layers with all CB related system information, broadcasted by SS.

c) The SS sends the CBS message containing an activated CBS message type according to CB-Data 1 to the UE; this shall be repeated for "CPREP" times (indicated by parameter "repetition period").

d) The UE indicates in an unambiguous way, that this message was received, by certain clear indications (e.g. a unique part of the CB data contents).

Expected sequence

Step	Direction		Message	Comments
	UE	SS
1			SYSTEM INFORMATION	Transmit this message as described below on the BCCH, in addition to the regular BCCH transmissions (see RRC test description). Included are CB related system information parameter of the CBS: – CTCH ID, – FACH ID and associated format set, – S-CCPCH ID, – BMC Schedule Level 1 information (N,K)
2				The SS waits for about 10 s to make sure, that the UE is configured to receive CBS data
3			BMC CBS Message	Activated CBS message with CB Data 1 message content as described by the manufacturer. This message shall be repeated "CPREP" times, Parameter: – Message_ID, – Serial-No, – Data coding scheme, – CB-Data 1,
4				After having received the BMC CBS message the UE shall indicate the reception of CB Data 1 in a clear way.

Specific Message Contents

SYSTEM INFORMATION TYPE 5 and 6

The contents of SYSTEM INFORMATION TYPE 5 and 6 Information Element in this test case are identical to those of the default contents of layer 3 messages for RRC tests [TS 34.123-1] with the following exceptions:

Information Element

Value/remark

CHOICE mode

– CTCH allocation period

– CTCH frame offset

Secondary CCPCH system

– Secondary CCPCH information

– TFCS

– FACH/PCH information

– TFS

– CTCH indicator

(see RRC default test settings)

TRUE

(see RRC default test settings)

BMC CBS Message

Information Element

Value/remark

Message Type

Message ID

Serial Number

– Geographic Scope Indicator (2 bit)

– Message Code (10 bit)

– Update Number (4 bit)

Data Coding Scheme

CB Data

1 (CBS message)

Bitstring (16) CB message ID, it shall fit to the stored Message ID in the SIM inserted in the UE (source and type) [see TS 23.041] according to the transmitted CB-Data 1 content.

[see TS 23.041]

11 (Normal Cell wide)

in accordance with the Message ID

for a new message: 0000, incremented by one for each repetition

Bitstring (16) ID of the alphabet/coding and the applied language [see TS 23.041]

Octetstring, [see IXIT value: CB-Data 1]

7.4.2.2.5 Test requirements

The UE shall store and decode a received activated CBS message.

7.4.2.3 UE in RRC Connected mode, state URA_PCH

7.4.2.3.1 Definition and applicability

Applicable only for a UE supporting Cell Broadcast Services (CBS) as a type of Broadcast/Multicast Services.

It shall be possible to indicate the reception of certain CBS message contents carried with certain activated CB message types in a clear way on UE side.

7.4.2.3.2 Conformance requirement

A UE supporting Cell Broadcast Service (CBS) shall be capable to receive BMC messages (…) in CELL_PCH and URA_PCH RRC-state of Connected mode.

Reference(s)

TS 25.324 clause 9.1.

7.4.2.3.3 Test purpose

To verify, that a BMC configuration for a UE is able to receive activated CBS messages when in RRC Connected mode, state URA_PCH.

7.4.2.3.4 Method of test

Initial conditions

UE is in Connected mode state URA_PCH; BMC entity is established

SS: 1 cell.

NOTE: The CB message ID stored on the SIM shall be known for this test (parameter for CBS PDU’s). The CBS data type shall be allocated and activated in the UE.

Related ICS/IXIT Statement(s)

ICS:

Support of BMC – Yes/No

Support of PS – Yes/No

CBS message support – YES/No.

IXIT: CBS-Data 1: Octetstring of N (where N1 and less than 1246).

NOTE: For CB-Data 1 IXIT, the manufacturer shall define CBS data as Octetstring together with the CB message ID used for transmitting this CB data, which is indicated by the UE after reception in a clear way according to the capabilities stored on the SIM. Furthermore, the manufacturer shall describe the indication on UE side (e.g. certain CBS traffic information)

Test procedure

a) The UE in RRC URA_PCH is triggered to wait for the next system information. The UE is activated to receive CBS messages.

b) The UE and the SS have configured their RLC, MAC and PHYs layers with all CB related system information, broadcasted by SS.

c) The SS sends the CBS message containing an activated CBS message type according to CB-Data 1 to the UE, this shall be repeated for "CPREP" times (indicated by parameter "repetition period").

d) The UE indicates in an unambiguous way, that this message was received, by certain clear indications (e.g. a unique part of the CB data contents).

Expected sequence

Step	Direction		Message	Comments
	UE	SS
1			SYSTEM INFORMATION	Transmit this message as described below on the BCCH, in addition to the regular BCCH transmissions (see RRC test description). Included are CB related system information parameter of the CBS: – CTCH ID, – FACH ID and associated format set, – S-CCPCH ID, – BMC Schedule Level 1 information (N,K)
2				The SS waits for about 10 s to make sure, that the UE is configured to receive CBS data
3			BMC CBS Message	Activated CBS message with CB Data 1 message content as described by the manufacturer. This message shall be repeated "CPREP" times, Parameter: – Message_ID, – Serial-No, – Data coding scheme, – CB-Data 1,
4				After having received the BMC CBS message the UE shall indicate the reception of CB Data 1 in a clear way.

Specific Message Contents

SYSTEM INFORMATION TYPE 5 and 6

Information Element

Value/remark

CHOICE mode

– CTCH allocation period

– CTCH frame offset

Secondary CCPCH system

– Secondary CCPCH information

– TFCS

– FACH/PCH information

– TFS

– CTCH indicator

(see RRC default test settings)

TRUE

(see RRC default test settings)

BMC CBS Message

Information Element

Value/remark

Message Type

Message ID

Serial Number

– Geographic Scope Indicator (2 bit)

– Message Code (10 bit)

– Update Number (4 bit)

Data Coding Scheme

CB Data

1 (CBS message)

Bitstring (16) CB message ID, it shall fit to the stored Message ID in the SIM inserted in the UE (source and type) [see TS 23.041] according to the transmitted CB-Data 1 content.

[see TS 23.041]

11 (Normal Cell wide)

in accordance with the Message ID

for a new message: 0000, incremented by one for each repetition

Bitstring (16) ID of the alphabet/coding and the applied language [see TS 23.041]

Octetstring, [see IXIT value: CB-Data 1]

7.4.2.3.5 Test requirements

The UE shall store and decode a received activated CBS message.

7.4.2.4 UE in RRC Idle mode (ANSI-41 CB data)

7.4.2.4.1 Definition and applicability

Applicable only for a UE supporting Cell Broadcast Services (CBS) for ANSI-41 CB data as a type of Broadcast/Multicast Services.

It shall be possible to indicate the reception of a certain CBS41 message content carried with certain activated CB41 message types in a clear way on UE side.

7.4.2.4.2 Conformance requirement

A UE supporting Cell Broadcast Services shall be capable to receive BMC messages in RRC Idle mode. (…)BMC messages are identified: (…), CBS41 Message

Reference(s)

TS 25.324 clause 9.1.

7.4.2.4.3 Test purpose

To verify, that a BMC configuration supporting ANSI-41 CB Data is able to receive activated CBS41 messages when in RRC Idle mode.

7.4.2.4.4 Method of test

Initial conditions

UE is in RRC Idle mode; BMC entity is established.

SS: 1 cell,

NOTE: The CB message ID stored on the SIM shall be known for this test (parameter for CBS41 PDU’s). The CBS41 data type shall be allocated and activated in the UE.

Related ICS/IXIT Statement(s)

ICS:

Support of BMC – Yes/No

Support of PS – Yes/No

CBS41 message support – YES/No.

IXIT: CB41-Data 1: Octetstring of N (where N1 and less than 1246).

NOTE: For CB41-Data 1 IXIT, the manufacturer shall define CBS data as Octetstring together with the CB message ID used for transmitting this CB41 data, which is indicated by the UE after reception in a clear way according to the capabilities stored on the SIM. Furthermore, the manufacturer shall describe the indication on UE side (e.g. certain CBS41 traffic information)

Test procedure

a) The UE in RRC Idle mode is triggered to wait for the next system information. The UE is activated to receive expected CBS41 messages as described by the manufacturer.

b) The UE and the SS have configured their RLC, MAC and PHYs layers with all CB related system information, broadcasted by SS.

c) The SS sends the CBS41 message containing an activated CBS41 message type according to CB41-Data 1 to the UE; this shall be repeated for "CPREP" times (indicated by parameter "repetition period").

d) The UE indicates in an unambiguous way, that this message was received, by certain clear indications (e.g. a unique part of the CB41 data contents).

Expected sequence

Step	Direction		Message	Comments
	UE	SS
1			SYSTEM INFORMATION	Transmit this message as described below on the BCCH, in addition to the regular BCCH transmissions (see RRC test description). Included are CB related system information parameter of the CBS: – CTCH ID, – FACH ID and associated format set, – S-CCPCH ID, – BMC Schedule Level 1 information (N,K) In addition, the MIB and SIB 16 are sent as described below to setup the ANSI-41 parameters
2				The SS waits for about 10 s to make sure, that the UE is configured to receive CB41 data
3			BMC CBS41 Message	Activated CBS message with CB41 Data 1 message content as described by the manufacturer. This message shall be repeated "CPREP" times, Parameter: – Message_type, – Broadcast Address – CB41-Data 1
4				After having received the BMC CBS message the UE shall indicate the reception of CB41 Data 1 in a clear way.

Specific Message Contents

MASTER INFORMATION BLOCK (MIB)

The contents of MASTER INFORMATION BLOCK Information Element in this test case are identical to those of the default contents of layer 3 messages for RRC tests [TS 34.123-1] with the following exceptions:

Information Element	Value/remark
ANSI-41 Core Network information	Present

SYSTEM INFORMATION TYPE 5 AND 6

Information Element

Value/remark

CHOICE mode

– CTCH allocation period

– CTCH frame offset

Secondary CCPCH system

– Secondary CCPCH information

– TFCS

– FACH/PCH information

– TFS

– CTCH indicator

(see RRC default test settings)

TRUE

(see RRC default test settings)

SYSTEM INFORMATION TYPE 13

The contents of SYSTEM INFORMATION TYPE 13 Information Element in this test case are identical to those of the default contents of layer 3 messages for RRC tests [TS 34.123-1] with the following exceptions:

Information Element

Value/remark

CHOICE CN Type

– CN domain specific NAS information

– NAS (ANSI-41) system information

ANSI-41

T.B.D

BMC CBS41 Message

Information Element

Value/remark

Message Type

Broadcast Address

CB Data41

3 (CBS41 Message)

Bitstring (40) Address Information of higher layer

Octetstring, [see IXIT value: CB41-Data 1] (ANSI-41)

7.4.2.4.5 Test requirements

The UE shall store and decode a received activated CBS41 message.

7.4.2.5 UE in RRC Connected mode, state CELL_PCH (ANSI-41 CB data)

7.4.2.5.1 Definition and applicability

Applicable only for a UE supporting Cell Broadcast Services (CBS) for ANSI-41 CB data as a type of Broadcast/Multicast Services.

It shall be possible to indicate the reception of certain CBS41 message contents carried with certain activated CB41 message types in a clear way on UE side.

7.4.2.5.2 Conformance requirement

A UE supporting Cell Broadcast Service (CBS) shall be capable to receive BMC messages (…) in CELL_PCH RRC-state of Connected mode. (…)BMC messages are identified: (…), CBS41 Message.

Reference(s)

TS 25.324 clause 9.1.

7.4.2.5.3 Test purpose

To verify, that a BMC configuration supporting ANSI-41 CB Data is able to receive activated CBS41 messages when in RRC Connected mode, state CELL_PCH.

7.4.2.5.4 Method of test

Initial conditions

UE is in Connected mode state CELL_PCH; BMC entity is established.

SS: 1 cell,

NOTE: The CB41 message ID stored on the SIM shall be known for this test (parameter for CBS41 PDU’s). The CBS41 data type shall be allocated and activated in the UE.

Related ICS/IXIT Statement(s)

ICS:

Support of BMC – Yes/No

Support of PS – Yes/No

CBS41 message support – YES/No.

IXIT: CBS41-Data 1: Octetstring of N (where N1 and less than 1246).

Test procedure

a) The UE in RRC CELL_PCH is triggered to wait for the next system information. The UE is activated to receive expected CBS41 messages as described by the manufacturer.

b) The UE and the SS have configured their RLC, MAC and PHYs layers with all CB41 related system information, broadcasted by SS.

c) The SS sends the CBS41 message containing an activated CBS41 message type according to CB41-Data 1 to the UE; this shall be repeated for "CPREP" times (indicated by parameter "repetition period").

d) The UE indicates in an unambiguous way, that this message was received, by certain clear indications (e.g. a unique part of the CB41 data contents).

Expected sequence

Step	Direction		Message	Comments
	UE	SS
1			SYSTEM INFORMATION	Transmit this message as described below on the BCCH, in addition to the regular BCCH transmissions (see RRC test description). Included are CB related system information parameter of the CBS: – CTCH ID, – FACH ID and associated format set, – S-CCPCH ID, – BMC Schedule Level 1 information (N,K) In addition, the MIB and SIB 13 are sent as described below for setup the ANSI-41 parameters
2				The SS waits for about 10 s to make sure, that the UE is configured to receive CB41 data
3			BMC CBS41 Message	Activated CBS message with CB41 Data 1 message content as described by the manufacturer. This message shall be repeated "CPREP" times, Parameter: – Message_type, – Broadcast Address – CB41-Data 1
4				After having received the BMC CBS message the UE shall indicate the reception of CB41 Data 1 in a clear way.

Specific Message Contents

MASTER INFORMATION BLOCK (MIB)

Information Element	Value/remark
ANSI-41 Core Network information	Present

SYSTEM INFORMATION TYPE 5 and 6

Information Element

Value/remark

CHOICE mode

– CTCH allocation period

– CTCH frame offset

Secondary CCPCH system

– Secondary CCPCH information

– TFCS

– FACH/PCH information

– TFS

– CTCH indicator

(see RRC default test settings)

TRUE

(see RRC default test settings)

SYSTEM INFORMATION TYPE 13

Information Element

Value/remark

CHOICE CN Type

– CN domain specific NAS information

– NAS (ANSI-41) system information

ANSI-41

T.B.D

BMC CBS41 Message

Information Element

Value/remark

Message Type

Broadcast Address

CB Data41

3 (CBS41 Message)

Bitstring (40) Address Information of higher layer

Octetstring, [see IXIT value: CB41-Data 1] (ANSI-41)

7.4.2.5.5 Test requirements

The UE shall store and decode a received activated CBS41 message.

7.4.2.6 UE in RRC Connected mode, state URA_PCH (ANSI-41 CB data)

7.4.2.6.1 Definition and applicability

Applicable only for a UE supporting Cell Broadcast Services (CBS) for ANSI-41 CB data as a type of Broadcast/Multicast Services.

It shall be possible to indicate the reception of a certain CBS41 message content carried with certain activated CB41 message types in a clear way on UE side.

7.4.2.6.2 Conformance requirement

A UE supporting Cell Broadcast Service (CBS) shall be capable to receive BMC messages (…) in URA_PCH RRC-state of Connected mode. (…)BMC messages are identified: (…), CBS41 Message.

Reference(s)

TS 25.324 clause 9.1.

7.4.2.6.3 Test purpose

To verify, that a BMC configuration supporting ANSI-41 CB Data is able to receive activated CBS41 messages when in RRC Connected mode, state URA_PCH.

7.4.2.3.4 Method of test

Initial conditions

UE is in Connected mode state URA_PCH; BMC entity is established.

SS: 1 cell,

NOTE: The CB41 message ID stored on the SIM shall be known for this test (parameter for CBS41 PDU’s). The CBS41 data type shall be allocated and activated in the UE.

Related ICS/IXIT Statement(s)

ICS:

Support of BMC – Yes/No

Support of PS – Yes/No

CBS41 message support – YES/No.

IXIT: CBS41-Data 1: Octetstring of N (where N1 and less than 1246).

Test procedure

a) The UE in RRC URA_PCH is triggered to wait for the next system information. The UE is activated to receive expected CBS41 messages as described by the manufacturer.

b) The UE and the SS have configured their RLC, MAC and PHYs layers with all CB related system information, broadcasted by SS.

c) The SS sends the CBS41 message containing an activated CBS41 message type according to CB41-Data 1 to the UE, this shall be repeated for "CPREP" times (indicated by parameter "repetition period").

d) The UE indicates in an unambiguous way, that this message was received, by certain clear indications (e.g. a unique part of the CB41 data contents).

Expected sequence

Step	Direction		Message	Comments
	UE	SS
1			SYSTEM INFORMATION	Transmit this message as described below on the BCCH, in addition to the regular BCCH transmissions (see RRC test description). Included are CB related system information parameter of the CBS: – CTCH ID, – FACH ID and associated format set, – S-CCPCH ID, – BMC Schedule Level 1 information (N,K) In addition, the MIB and SIB 13 are sent as described below for setup the ANSI-41 parameters
2				The SS waits for about 10 s to make sure, that the UE is configured to receive CB41 data
3			BMC CBS41 Message	Activated CBS message with CB41 Data 1 message content as described by the manufacturer. This message shall be repeated "CPREP" times, Parameter: – Message_type, – Broadcast Address – CB41-Data 1
4				After having received the BMC CBS message the UE shall indicate the reception of CB41 Data 1 in a clear way.

Specific Message Contents

MASTER INFORMATION BLOCK (MIB)

Information Element	Value/remark
ANSI-41 Core Network information	Present

SYSTEM INFORMATION TYPE 5 and 6

Information Element

Value/remark

CHOICE mode

– CTCH allocation period

– CTCH frame offset

Secondary CCPCH system

– Secondary CCPCH information

– TFCS

– FACH/PCH information

– TFS

– CTCH indicator

(see RRC default test settings)

TRUE

(see RRC default test settings)

SYSTEM INFORMATION TYPE 13

Information Element

Value/remark

CHOICE CN Type

– CN domain specific NAS information

– NAS (ANSI-41) system information

ANSI-41

T.B.D

BMC CBS41 Message

Information Element

Value/remark

Message Type

Broadcast Address

CB Data41

3 (CBS41 Message)

Bitstring (40) Address Information of higher layer

Octetstring, [see IXIT value: CB41-Data 1] (ANSI-41)

7.4.2.6.5 Test requirements

The UE shall store and decode a received activated CBS41 message.

7.4.3 BMC message reception procedure

7.4.3.1 Reception of certain CBS message types

7.4.3.1.1 Definition and applicability

Applicable only for a UE supporting Cell Broadcast Services (CBS) as type of Broadcast/Multicast Services.

It shall be possible to indicate the reception of two different CBS message contents carried with different activated CB message types in a clear way on UE side.

It shall be possible to activate/deactivate the CBS message types used to receive CB Data 1 or 2.

7.4.3.1.2 Conformance requirement

A UE supporting Cell Broadcast Service (CBS) shall be capable to receive BMC messages in RRC Idle mode.

The BMC entity on UE side evaluates received BMC Schedule Messages and takes decisions which BMC messages are received.

If not otherwise requested by upper layers, only those CB messages received in BMC CBS Messages should be delivered to upper layers for which the Serial Number associated with the CB message has changed. This implies that the BMC has to store the last received Serial Number of each CB message activated by upper layers.

Reference(s)

TS 25.324 clause 9.1.

TS 25.324 clause 9.4.

7.4.3.1.3 Test purpose

1. To verify, that a UE supporting CBS ignores a deactivated CBS message type which has been broadcasted by SS.

2. To verify, that a UE only stores Serial Numbers of a newly transmitted CBS messages. This shall be verified by indication of a received CBS message with changed Serial Number as indication for the storage of Serial Numbers.

7.4.3.1.4 Method of test

Initial conditions

UE is in RRC Idle mode.

SS: 1 cell,

NOTE: The CB message ID stored on the SIM shall be known for this test (as parameter for the CBS message PDU). The CBS data type shall be allocated and in the UE. It shall be possible to activate/deactivate such CBS data type.

Related ICS/IXIT Statement(s)

ICS:

Support of BMC – Yes/No

Support of PS – Yes/No

CBS message support – YES/No.

IXIT:

– CBS-Data 1: Octetstring of N (where N1 and less than 1246), with used CB message ID for CB-Data 1.

– CBS-Data 2: Octetstring of N (where N1 and less than 1246), with used CB message ID for CB-Data 2 (CB message ID for CB-Data 1 shall be different to CB message ID for CB-Data 2).

NOTE: For CBS data IXIT’s, the manufacturer shall define CBS data as Octetstring as described in the IXIT, which is indicated by the UE after reception in a clear way according to the capabilities stored on the SIM. The manufacturer shall describe the indication on UE side for both CBS data types (e.g. certain CBS broadcast information shown in the display of the UE).

Test procedure

a) The UE in RRC Idle mode is triggered to wait for the next system information. The UE is activated to receive CBS data 1, CBS data 2) are deactivated.

b) The UE and the SS have configured their RLC, MAC and PHYs layers with all CB related system information, broadcasted by SS.

c) The SS sends the first BMC CBS schedule message to predict the next CBS messages to the UE.

d) The SS sends the CBS message containing CB-Data 1 to the UE, together with the CBS schedule message to predict the next CBS messages (repetition of CB Data 1, and the next CBS schedule message).

e) The UE indicates on an unambiguous way, that this CB-Data 1 has been received by the UE (e.g. a unique part of the CBS data contents shown on the display).

f) The SS sends the repeated CB Data 1, and the next CBS schedule message to predict the next CBS messages to the UE. (CBS schedule message predicts the first repetition of CB Data).

g) The UE indicates on an unambiguous way, that CB-Data 2 has been received by the UE (e.g. a unique part of the CBS data contents shown in the display).

h) The UE deactivates the CB Message type ID used for CB-Data 1.

i) The SS sends the CB Data 2 (as deactivated CB Data type) to the UE.

j) The UE ignores the newly received CB-Data 2, i.e. there is no indication for this CB Data 2 as described in step e).

Expected sequence

Step	Direction		Message	Comments
Step	UE	SS	Message
1			SYSTEM INFORMATION	Transmit these messages as described below on the BCCH, in addition to the regular BCCH transmissions. Included are all CB related system information parameter of the CBS: – CTCH ID, – FACH ID and associated format set, – S-CCPCH ID, – BMC Schedule Level 1 information (N,K)
2				The SS waits for about 10 s to make sure, that the UE is configured to receive the CBS Data message
3			BMC CBS Schedule	Inband CBS schedule message with BMC schedule information Level 2 (DRX) to predict the next CB data block (CB Data 1 –new-, CBS Schedule message)
4			BMC CBS Message	Activated CBS message with certain CB data content (CBS data 1 as described by the manufacturer). This message is sent the first time. Parameter: – Message_ID, – Serial-No, – Data coding scheme, – CB-Data 1 (new)
5				After having received the BMC CB-Data 1 the UE shall indicate the reception in a clear way.
6			BMC CBS Schedule	Inband CBS schedule message with BMC schedule information Level 2 (DRX) to predict the next CB data block (CB Data 1 –rep.1-, CBS Schedule message)
7			BMC CBS Message	Activated CBS message with certain CB data content (CBS data 1 as described by the manufacturer). This message is repeated. Parameter: – Message_ID, – Serial-No, – Data coding scheme, – CB-Data 1 (old)
8				The UE deactivates "CB message type ID" used for CB-Data 1
9			BMC CBS Schedule	Inband CBS schedule message with BMC schedule information Level 2 (DRX) to predict the next CB data block (CB Data 2 –new-).
10			BMC CBS Message	Deactivated CBS message with certain CB data content (CBS data 2 as described by the manufacturer). This message is sent the first time. Parameter: – Message_ID, – Serial-No, – Data coding scheme, – CB-Data 2 (new)
11				After having received the BMC CBS message (CB-Data 2) the UE shall ignore the newly received CBS data 1 message, i.e. there is no indication as described by the manufacturer.

Specific Message Contents

SYSTEM INFORMATION TYPE 5 and 6

Information Element

Value/remark

CHOICE mode

– CTCH allocation period

– CTCH frame offset

Secondary CCPCH system

– Secondary CCPCH information

– TFCS

– FACH/PCH information

– TFS

– CTCH indicator

(see RRC default test settings)

TRUE

(see RRC default test settings)

BMC CBS Message (Step 4 and 7)

Information Element

Value/remark

Message Type

Message ID

Serial Number

– Geographic Scope Indicator (2 bit)

– Message Code (10 bit)

– Update Number (4 bit)

Data Coding Scheme

CB Data

1 (CBS message)

Bitstring (16) CB message ID, it shall fit to the stored Message ID in the SIM inserted in the UE (source and type) [see TS 23.041]

[see TS 23.041]

11 (Normal Cell wide)

according with the Message ID

for a new message: 0000, incremented by one for each repetition

Bitstring (16) ID of the alphabet/coding and the applied language [see TS 23.041]

Octetstring, [see IXIT value: CB-Data 1]

BMC CBS Message (Step 10)

Information Element

Value/remark

Message Type

Message ID

Serial Number

– Geographic Scope Indicator (2 bit)

– Message Code (10 bit)

– Update Number (4 bit)

Data Coding Scheme

CB Data

1 (CBS message)

Bitstring (16) CB message ID, it shall fit to the stored Message ID in the SIM inserted in the UE (source and type) [see TS 23.041]

[see TS 23.041]

11 (Normal Cell wide)

according with the Message ID

for a new message: 0000, incremented by one for each repetition

Bitstring (16) ID of the alphabet/coding and the applied language [see TS 23.041]

Octetstring, [see IXIT value: CB-Data 2]

BMC Schedule Message (Step 3, 6 and Step 9)

The parameters for BMC Schedule Message (inband schedule message) in Step 5 are inserted for CB-Data 2 and in Step 8 for CB-Data 1.

Information Element

Value/remark

Message Type

Offset to begin CTCH BS index

Length of CBS Schedule Period

New Message Bitmap

Message Description

– Message Description Type

– Message ID

– Offset to CTCH (BS index of first transmission)

2 (Schedule message)

calculated offset value of the BS (Integer: 0…255) as recommended in TR 25.925

Number of consecutive CTCH BS of the next CBS Schedule Period, (Integer: 1…255) as recommended in TR 25.925

Bitmap (N*8), N = Length of CBS Schedule Period as recommended in TR 25.925

1 for new message (see TS 25.324, Table 11.9-3)

5 for old message (see TS 25.324, Table 11.9-3)

CB message ID used for the next CB data

for Message description type 1 or 5: CB message ID IE included (see TS 23.041)

7.4.3.1.5 Test requirements

After having received the CB-Data 1 message (step 4), the UE shall store the Serial Number of this message and indicate the reception of the CBS message as described by the manufacturer.

After CB-Data 2 message was newly broadcasted (step 10), the UE shall not indicate the reception for the deactivated CBS message (CB-Data 1).