9.2.3 Reporting of Channel Quality Indicator

25.1023GPPRelease 17TSUser Equipment (UE) radio transmission and reception (TDD)

The reporting accuracy of channel quality indicator (CQI) under AWGN and static orthogonal environments is determined by the reporting variance and the BLER performance using the transport format indicated by the reported CQI median.

9.2.3.1 Minimum Requirement-UE categories 1-24

For the parameters specified in Table 9.15, the reported CQI value shall be within +/- x, as specified in Table 9.16, of the reported median CQI for more than Y%, also specified in Table 9.16, of the time.

Table 9.15: Test parameters for CQI reporting measurement channel requirements (1.28 Mcps TDD Option)

Category

1-3

Category 4-6

Category 7-9

Category 10-12

Category

13-15

Category

16-18

Category

19-21

Category

22-24

Parameter

Unit

Test 1

Test 2

Test 3

Test 4

Test 5

Test 6

Test 7

Test 8

Test

9

Test

10

Test

11

Test

12

Number of TS

–

2

2

3

4

5

3

4

5

Number of HS-PDSCH codes per TS

–

10

10

10

10

10

14

14

14

HS-PDSCHi_Ec/Ior

dB

-10

-10

-10

-10

-10

-11.46

-11.46

-11.46

HS-PDSCH Channelization Codes*

C(k,Q)

C(i,16)

1i10

C(i,16)

1i10

C(i,16)

1i10

C(i,16)

1i10

C(i,16)

1i10

C(i,16)

1i14

C(i,16)

1i14

C(i,16)

1i14

Number of DPCHo

–

0

Number of HARQ Process

–

4

Number of transmission

–

1

Ioc**

dBm/1.28MHz

-60

dB

1

1

8

1

8

1

8

1

8

18

18

18

Propagation Channel

–

AWGN

*Note 1 Refer to TS 25.223 for definition of channelization codes, scrambling code and basic midamble code.

**Note 2 For multi-carrier reception, it refers to on each carrier.

Table 9.16: Performance requirements for CQI reporting measurement channel requirements (1.28 Mcps TDD Option)

Test

Permitted CQI range from median (x)

% of time that CQI must be within +/- x of median (Y)

Maximum BLER for median reported CQI

Test 1

+/- 3

90

10%

Test 2

+/- 3

90

Test 3

+/- 2

90

Test 4

+/- 2

90

Test 5

+/-2

90

Test 6

+/-2

90

Test 7

+/-2

90

Test 8

+/-2

90

Test 9

+/-2

90

Test 10

+/-2

90

Test 11

+/-2

90

Test 12

+/-2

90

9.2.3.2 Minimum Requirement-UE categories 25-27

For the parameters specified in Table 9.16A, the reported CQI value shall be within +/- x, as specified in Table 9.16B, of the reported median CQI for more than Y%, also specified in Table 9.16B, of the time.

The MIMO dual stream static orthogonal propagation conditions are defined in subclause B.3.2.1. For UE supporting Spreading Factor 1 only in dual stream transmission, the number of HS-PDSCH codes per TS should be configured to 1 in dual stream transmission, and the HS-PDSCHi_Ec/Ior should be 0dB.

Table 9.16A: Test parameters for CQI reporting measurement channel requirements (1.28 Mcps TDD Option)

Category 25

Category 26

Category 27

Parameter

Unit

Test 1

Test 2

Test 3

Test 4

Test 5

Test 6

Number of TS

–

3

4

5

Number of HS-PDSCH codes per TS

–

16

16

16

Number of HS-PDSCH codes per TS

–

16

HS-PDSCHi_Ec/Ior

dB

-12.04

HS-PDSCH Channelization Codes

C(k,Q)

C(i,16)

1i16

Number of DPCHo

–

0

Number of HARQ Process perstream

–

4

Number of transmission

–

1

Ioc

dBm

-60

dB

8

10

8

10

8

10

Stream Number

configuration

–

Single

Stream

Dual

Stream

Single

Stream

Dual

Stream

Single

Stream

Dual

Stream

Propagation Channel

–

AWGN

Static Orthogonal

AWGN

Static Orthogonal

AWGN

Static Orthogonal

Table 9.16B: Performance requirements for CQI reporting measurement channel requirements (1.28 Mcps TDD Option)

Test

Permitted CQI range from median (x)

% of time that CQI must be within +/- x of median (Y)

Maximum BLER for median reported CQI

Test 1

+/- 2

90

10%

Test 2

+/- 2

90

Test 3

+/- 2

90

Test 4

+/- 2

90

Test 5

+/-2

90

Test 6

+/-2

90

9.2.3.3 Minimum Requirement-UE categories 28-30

For the parameters specified in Table 9.16C, the reported CQI value shall be within +/- x, as specified in Table 9.16D, of the reported median CQI for more than Y%, also specified in Table 9.16D, of the time.

The MIMO dual stream static orthogonal propagation conditions are defined in subclause B.3.2.1. For UE supporting Spreading Factor 1 only in dual stream transmission, the number of HS-PDSCH codes per TS should be configured to 1 in dual stream transmission, and the HS-PDSCHi_Ec/Ior should be 0dB.

Table 9.16C: Test parameters for CQI reporting measurement channel requirements (1.28 Mcps TDD Option)

Category 28

Category 29

Category 30

Parameter

Unit

Test 1

Test 2

Test 3

Test 4

Test 5

Test 6

Number of TS

–

3

4

5

Number of HS-PDSCH codes per TS

–

16

16

16

Number of HS-PDSCH codes per TS

–

16

HS-PDSCHi_Ec/Ior

dB

-12.04

HS-PDSCH Channelization Codes

C(k,Q)

C(i,16)

1i16

Number of DPCHo

–

0

Number of HARQ Process perstream

–

4

Number of transmission

–

1

Ioc

dBm

-60

dB

16

18

16

18

16

18

Stream Number

–

Single

Stream

Dual

Stream

Single

Stream

Dual

Stream

Single

Stream

Dual

Stream

Propagation Channel

–

AWGN

Static Orthogonal

AWGN

Static Orthogonal

AWGN

Static Orthogonal

Table 9.16D: Performance requirements for CQI reporting measurement channel requirements (1.28 Mcps TDD Option)

Test

Permitted CQI range from median (x)

% of time that CQI must be within +/- x of median (Y)

Maximum BLER for median reported CQI

Test 1

+/- 2

90

10%

Test 2

+/- 2

90

Test 3

+/- 2

90

Test 4

+/- 2

90

Test 5

+/- 2

90

Test 6

+/- 2

90