9.3.6 Minimum requirement (With multiple CSI processes)

36.1013GPPEvolved Universal Terrestrial Radio Access (E-UTRA)Release 18TSUser Equipment (UE) radio transmission and reception

The purpose of the test is to verify the reporting accuracy of the CQI and the UE processing capability for multiple CSI processes. Each CSI process is associated with a CSI-RS resource and a CSI-IM resource as shown in Table 9.3.6-1. For UE supports one CSI process, CSI process 2 is configured and the corresponding requirements shall be fulfilled. For UE supports three CSI processes, CSI processes 0, 1 and 2 are configured and the corresponding requirements shall be fulfilled. For UE supports four CSI processes, CSI processes 0, 1, 2 and 3 are configured and the corresponding requirements shall be fulfilled.

Table 9.3.6-1: Configuration of CSI processes

CSI process 0

CSI process 1

CSI process 2

CSI process 3

CSI-RS resource

CSI-RS signal 0

CSI-RS signal 1

CSI-RS signal 0

CSI-RS signal 1

CSI-IM resource

CSI-IM resource 0

CSI-IM resource 0

CSI-IM resource 1

CSI-IM resource 2

9.3.6.1 FDD

For the parameters specified in Table 9.3.6.1-1, and using the downlink physical channels specified in Annex C.3.2, the minimum requirements are specified in Table 9.3.6.1-2 and by the following

a) a sub-band differential CQI offset level of 0 shall be reported at least % of the time but less than % for each sub-band for CSI process 1, 2, or 3;

b) a CQI index not in the set {median CQI -1, median CQI, median CQI +1} shall be reported at least % of the time for CSI process 0;

c) the difference of the median CQIs of the reported wideband CQI for configurated CSI processes shall be greater or equal to the values as in Table 9.3.6.1-3;

d) the ratio of the throughput obtained when transmitting on a randomly selected sub-band among the sub-bands with the highest differential CQI offset level the corresponding TBS and that obtained when transmitting the TBS indicated by the reported wideband CQI median on a randomly selected sub-band in set S shall be ≥ ;

e) when transmitting on a randomly selected sub-band among the sub-bands with the highest differential CQI offset level the corresponding TBS, the average BLER for the indicated transport formats shall be greater or equal to 0.02.

The requirements only apply for sub-bands of full size and the random scheduling across the sub-bands is done by selecting a new sub-band in each TTI for FDD, each available downlink transmission instance for TDD. Sub-bands of a size smaller than full size are excluded from the test.

Table 9.3.6.1-1: Fading test for FDD

Parameter

Unit

Test 1

Test 2

TP1

TP2

TP1

TP2

Bandwidth

MHz

10 MHz

10 MHz

Transmission mode

10

10

10

10

Downlink power allocation

dB

0

0

dB

0

0

dB

-3

0

-3

0

σ

dB

-3

-3

SNR (Note 7)

dB

10

11

7

8

14

15

9

10

dB[mW/15kHz]

-88

-87

-91

-90

-84

-85

-89

-88

dB[mW/15kHz]

-98

-98

Propagation channel

EPA 5 Low

Clause B.2.4.1 with s, a = 1, Hz

EPA 5 Low

Clause B.2.4.1 with s, a = 1, Hz

Antenna configuration

4×2

2×2

4×2

2×2

Beamforming Model

As specified in Section B.4.3

As specified in Section B.4.3

Timing offset between TPs

us

0

0

Frequency offset between TPs

Hz

0

0

Cell-specific reference signals

Antenna ports 0,1

Antenna ports 0,1

CSI-RS signal 0

Antenna ports 15,…,18

N/A

Antenna ports 15,…,18

N/A

CSI-RS 0 periodicity and subframe offset TCSI-RS / ∆CSI-RS

5/1

N/A

5/1

N/A

CSI-RS 0 configuration

0

N/A

0

N/A

CSI-RS signal 1

N/A

Antenna ports 15,16

N/A

Antenna ports 15,16

CSI-RS 1 periodicity and subframe offset TCSI-RS / ∆CSI-RS

N/A

5/1

N/A

5/1

CSI-RS 1 configuration

N/A

5

N/A

5

Zero-power CSI-RS 0 configuration

ICSI-RS / ZeroPowerCSI-RS bitmap

N/A

1 / 1110000000000000

N/A

1 / 1110000000000000

Zero-power CSI-RS 1 configuration

ICSI-RS / ZeroPowerCSI-RS bitmap

1 / 0010011000000000

N/A

1 / 0010011000000000

N/A

CSI-IM 0 periodicity and subframe offset TCSI-RS / ∆CSI-RS

5/1

5/1

5/1

5/1

CSI-IM 0 configuration

2

2

2

2

CSI-IM 1 periodicity and subframe offset TCSI-RS / ∆CSI-RS

5/1

N/A

5/1

N/A

CSI-IM 1 configuration

6

N/A

6

N/A

CSI-IM 2 periodicity and subframe offset TCSI-RS / ∆CSI-RS

N/A

5/1

N/A

5/1

CSI-IM 2 configuration

N/A

1

N/A

1

CSI process 0

CSI-RS

CSI-RS 0

CSI-RS 0

CSI-IM

CSI-IM 0

CSI-IM 0

Reporting mode

PUCCH 1-1

PUCCH 1-1

CodeBookSubsetRestriction bitmap

0x0000 0000 0000 0001

0x0000 0000 0000 0001

Reporting periodicity

ms

Npd = 5

Npd = 5

CQI delay

ms

11

11

Physical channel for CQI/ PMI reporting

PUSCH (Note 6)

PUSCH (Note 6)

PUCCH Report Type for CQI/PMI

2

2

PUCCH channel for RI reporting

PUCCH Format 2

PUCCH Format 2

PUCCH report type for RI

3

3

cqi-pmi-ConfigurationIndex

4

4

ri-ConfigIndex

2

2

CSI process 1

CSI-RS

CSI-RS 1

CSI-RS 1

CSI-IM

CSI-IM 0

CSI-IM 0

Reporting mode

PUSCH 3-1

PUSCH 3-1

CodeBookSubsetRestriction bitmap

000001

000001

Reporting interval (Note 10)

ms

5

5

CQI delay

ms

11

11

Sub-band size

RB

6 (full size)

6 (full size)

CSI process 2

(For UE configured single process)

CSI-RS

CSI-RS 0

CSI-RS 0

CSI-IM

CSI-IM 1

CSI-IM 1

Reporting mode

PUSCH 3-1

PUSCH 3-1

CodeBookSubsetRestriction bitmap

0x0000 0000 0000 0001

0x0000 0000 0000 0001

Reporting interval (Note 8)

ms

5

5

CQI delay

ms

8

8

Sub-band size

RB

6 (full size) (Note 9)

6 (full size) (Note 9)

CSI process 3

CSI-RS

CSI-RS 1

CSI-RS 1

CSI-IM

CSI-IM 2

CSI-IM 2

Reporting mode

PUSCH 3-1

PUSCH 3-1

CodeBookSubsetRestriction bitmap

000001

000001

Reporting interval (Note 10)

ms

5

5

CQI delay

ms

11

11

Sub-band size

RB

6 (full size)

6 (full size)

CSI process for PDSCH scheduling

CSI process 2

CSI process 2

Cell ID

0

6

0

6

Quasi-co-located CSI-RS

CSI-RS 0

CSI-RS 1

CSI-RS 0

CSI-RS 1

Quasi-co-located CRS

Same Cell ID as Cell 1

Same Cell ID as Cell 2

Same Cell ID as Cell 1

Same Cell ID as Cell 2

PMI for subframe 2, 3, 4, 7, 8 and 9

0x0000 0000 0000 0001

100000

0x0000 0000 0000 0001

100000

PMI for subframe 1 and 6

0x0000 0000 0001 0000

100000

0x0000 0000 0001 0000

100000

Max number of HARQ transmissions

1

N/A

1

N/A

Note 1: If the UE reports in an available uplink reporting instance at subframe SF#n based on CQI estimation at a downlink SF not later than SF#(n-4), this reported wideband CQI cannot be applied at the eNB downlink before SF#(n+4)

Note 2: 3 symbols allocated to PDCCH

Note 3: Reference measurement channel RC.12 FDD according to Table A.4-1. PDSCH transmission is scheduled on subframe 2, 3, 4, 7, 8 and 9 from TP1.

Note 4: TM10 OCNG OP.8 FDD as specified in A.5.1.8 is transmitted on subframe 1 and 6 from TP1.

Note 5: TM10 OCNG OP.8 FDD as specified in A.5.1.8 is transmitted on subframe 1, 2, 3, 4, 6, 7, 8 and 9 from TP2

Note 6: To avoid collisions between CQI/PMI reports and HARQ-ACK it is necessary to report both on PUSCH instead of PUCCH. PDCCH DCI format 0 shall be transmitted in downlink SF#3 and #8 to allow periodic CQI/PMI to multiplex with the HARQ-ACK on PUSCH in uplink SF#2 and #7.

Note 7: For each test, the minimum requirements shall be fulfilled for at least one of the two SNR(s) and the respective wanted signal input level.

Note 8: PDCCH DCI format 0 with a trigger for aperiodic CQI shall be transmitted in downlink SF#1 and #6 to allow aperiodic CQI/PMI/RI to be transmitted in uplink SF#0 and #5.

Note 9: For these sub-bands which are not selected for PDSCH transmission, TM10 OCNG should be transmitted.

Note 10: PDCCH DCI format 0 with a trigger for aperiodic CQI shall be transmitted in downlink SF#2 and #7 to allow aperiodic CQI/PMI/RI to be transmitted in uplink SF#1 and #6.

Table 9.3.6.1-2: Minimum requirement (FDD)

CSI process 0

CSI process 1

CSI process 2

CSI process 3

[%]

N/A

2

2

2

[%]

N/A

40

40

40

[%]

10

N/A

N/A

N/A

N/A

N/A

1.02

N/A

UE Category

≥1

Table 9.3.6.1-3: Minimum median CQI difference between configured CSI processes (FDD)

CSI process 1

CSI process 2

CSI process 3

CSI process 0

N/A

1

3

UE Category

≥1

9.3.6.2 TDD

For the parameters specified in Table 9.3.6.2-1, and using the downlink physical channels specified in Annex C.3.2, the minimum requirements are specified in Table 9.3.6.2-2 and by the following

a) a sub-band differential CQI offset level of 0 shall be reported at least % of the time but less than % for each sub-band for CSI process 1, 2, or 3;

b) a CQI index not in the set {median CQI -1, median CQI, median CQI +1} shall be reported at least % of the time for CSI process 0;

c) the difference of the median CQIs of the reported wideband CQI for configurated CSI processes shall be greater or equal to the values as in Table 9.3.6.2-3;

d) the ratio of the throughput obtained when transmitting on a randomly selected sub-band among the sub-bands with the highest differential CQI offset level the corresponding TBS and that obtained when transmitting the TBS indicated by the reported wideband CQI median on a randomly selected sub-band in set S shall be ≥ ;

e) when transmitting on a randomly selected sub-band among the sub-bands with the highest differential CQI offset level the corresponding TBS, the average BLER for the indicated transport formats shall be greater or equal to 0.02.

The requirements only apply for sub-bands of full size and the random scheduling across the sub-bands is done by selecting a new sub-band in each TTI for FDD, each available downlink transmission instance for TDD. Sub-bands of a size smaller than full size are excluded from the test.

Table 9.3.6.2-1: Fading test for TDD

Parameter

Unit

Test 1

Test 2

TP1

TP2

TP1

TP2

Bandwidth

MHz

10 MHz

10 MHz

Transmission mode

10

10

10

10

Uplink downlink configuration

2

2

2

2

Special subframe configuration

4

4

4

4

Downlink power allocation

dB

0

0

dB

0

0

dB

-3

0

-3

0

σ

dB

-3

-3

SNR (Note 7)

dB

10

11

7

8

14

15

9

10

dB[mW/15kHz]

-88

-87

-91

-90

-84

-85

-89

-88

dB[mW/15kHz]

-98

-98

Propagation channel

EPA 5 Low

Clause B.2.4.1 with s, a = 1, Hz

EPA 5 Low

Clause B.2.4.1 with s, a = 1, Hz

Antenna configuration

4×2

2×2

4×2

2×2

Beamforming Model

As specified in Section B.4.3

As specified in Section B.4.3

Timing offset between TPs

us

0

0

Frequency offset between TPs

Hz

0

0

Cell-specific reference signals

Antenna ports 0,1

Antenna ports 0,1

CSI-RS signal 0

Antenna ports 15,…, 18

N/A

Antenna ports 15,…, 18

N/A

CSI-RS 0 periodicity and subframe offset TCSI-RS / ∆CSI-RS

5/3

N/A

5/3

N/A

CSI-RS 0 configuration

0

N/A

0

N/A

CSI-RS signal 1

N/A

Antenna ports 15, 16

N/A

Antenna ports 15, 16

CSI-RS 1 periodicity and subframe offset TCSI-RS / ∆CSI-RS

N/A

5/3

N/A

5/3

CSI-RS 1 configuration

N/A

5

N/A

5

Zero-power CSI-RS 0 configuration

ICSI-RS / ZeroPowerCSI-RS bitmap

N/A

3 / 1110000000000000

N/A

3 / 1110000000000000

Zero-power CSI-RS 1 configuration

ICSI-RS / ZeroPowerCSI-RS bitmap

3 / 0010011000000000

N/A

3 / 0010011000000000

N/A

CSI-IM 0 periodicity and subframe offset TCSI-RS / ∆CSI-RS

5/3

5/3

5/3

5/3

CSI-IM 0 configuration

2

2

2

2

CSI-IM 1 periodicity and subframe offset TCSI-RS / ∆CSI-RS

5/3

N/A

5/3

N/A

CSI-IM 1 configuration

6

N/A

6

N/A

CSI-IM 2 periodicity and subframe offset TCSI-RS / ∆CSI-RS

N/A

5/3

N/A

5/3

CSI-IM 2 configuration

N/A

1

N/A

1

CSI process 0

CSI-RS

CSI-RS 0

CSI-RS 0

CSI-IM

CSI-IM 0

CSI-IM 0

Reporting mode

PUCCH 1-1

PUCCH 1-1

CodeBookSubsetRestriction bitmap

0x0000 0000 0000 0001

0x0000 0000 0000 0001

Reporting periodicity

ms

Npd = 5

Npd = 5

CQI delay

ms

12

12

Physical channel for CQI/ PMI reporting

PUSCH (Note 6)

PUSCH (Note 6)

PUCCH Report Type for CQI/PMI

2

2

PUCCH channel for RI reporting

PUCCH Format 2

PUCCH Format 2

PUCCH report type for RI

3

3

cqi-pmi-ConfigurationIndex

3

3

ri-ConfigIndex

805 (Note 10)

805 (Note 10)

CSI process 1

CSI-RS

CSI-RS 1

CSI-RS 1

CSI-IM

CSI-IM 0

CSI-IM 0

Reporting mode

PUSCH 3-1

PUSCH 3-1

CodeBookSubsetRestriction bitmap

000001

000001

Reporting interval (Note 9)

ms

5

5

CQI delay

ms

12

12

Sub-band size

RB

6 (full size)

6 (full size)

CSI process 2

CSI-RS

CSI-RS 0

CSI-RS 0

CSI-IM

CSI-IM 1

CSI-IM 1

Reporting mode

PUSCH 3-1

PUSCH 3-1

CodeBookSubsetRestriction bitmap

0x0000 0000 0000 0001

0x0000 0000 0000 0001

Reporting interval (Note 9)

ms

5

5

CQI delay

ms

12

12

Sub-band size

RB

6 (full size) (Note 8)

6 (full size) (Note 8)

CSI process 3

CSI-RS

CSI-RS 1

CSI-RS 1

CSI-IM

CSI-IM 2

CSI-IM 2

Reporting mode

PUSCH 3-1

PUSCH 3-1

CodeBookSubsetRestriction bitmap

000001

000001

Reporting interval (Note 9)

ms

5

5

CQI delay

ms

12

12

Sub-band size

RB

6 (full size)

6 (full size)

CSI process for PDSCH scheduling

CSI process 2

CSI process 2

Cell ID

0

6

0

6

Quasi-co-located CSI-RS

CSI-RS 0

CSI-RS 1

CSI-RS 0

CSI-RS 1

Quasi-co-located CRS

Same Cell ID as Cell 1

Same Cell ID as Cell 2

Same Cell ID as Cell 1

Same Cell ID as Cell 2

PMI for subframe 4 and 9

0x0000 0000 0000 0001

100000

0x0000 0000 0000 0001

100000

PMI for subframe 3 and 8

0x0000 0000 0001 0000

100000

0x0000 0000 0001 0000

100000

Max number of HARQ transmissions

1

N/A

1

N/A

ACK/NACK feedback mode

Multiplexing

N/A

Multiplexing

N/A

Note 1: If the UE reports in an available uplink reporting instance at subframe SF#n based on CQI estimation at a downlink SF not later than SF#(n-4), this reported wideband CQI cannot be applied at the eNB downlink before SF#(n+4)

Note 2: 3 symbols allocated to PDCCH

Note 3: Reference measurement channel RC.12 TDD according to Table A.4-1. PDSCH transmission is scheduled on subframe 4 and 9 from TP1.

Note 4: TM10 OCNG OP.8 TDD is transmitted as specified in A.5.2.8 on subframe 3 and 8 from TP1.

Note 5: TM10 OCNG OP.8 TDD is transmitted as specified in A.5.2.8 on subframe 3, 4, 8 and 9 from TP2

Note 6: To avoid collisions between CQI/PMI reports and HARQ-ACK it is necessary to report both on PUSCH instead of PUCCH. PDCCH DCI format 0 shall be transmitted in downlink SF#3 and #8 to allow periodic CQI/PMI to multiplex with the HARQ-ACK on PUSCH in uplink SF#7 and #2.

Note 7: For each test, the minimum requirements shall be fulfilled for at least one of the two SNR(s) and the respective wanted signal input level.

Note 8: PDCCH DCI format 0 with a trigger for aperiodic CQI shall be transmitted in downlink SF#3 and #8 to allow aperiodic CQI/PMI/RI to be transmitted in uplink SF#7 and #2.

Note 9: For these sub-bands which are not selected for PDSCH transmission, TM10 OCNG should be transmitted.

Note 10: RI reporting interval is set to the maximum allowable length of 160ms to minimise collisions between RI, CQI/PMI and HARQ-ACK reports. In the case when all three reports collide, it is expected that CQI/PMI reports will be dropped, while RI and HARQ-ACK will be multiplexed. At eNB, CQI report collection shall be skipped every 160ms during performance verification and the reported CQI in subframe SF#7 of the previous frame is applied in downlink subframes until a new CQI (after CQI/PMI dropping) is available.

Table 9.3.6.2-2: Minimum requirement (TDD)

CSI process 0

CSI process 1

CSI process 2

CSI process 3

[%]

N/A

2

2

2

[%]

N/A

40

40

40

[%]

10

N/A

N/A

N/A

N/A

N/A

1.02

N/A

UE Category

≥1

Table 9.3.6.2-3: Minimum median CQI difference between configured CSI processes (TDD)

CSI process 1

CSI process 2

CSI process 3

CSI process 0

N/A

1

3

UE Category

≥1