8.3 Performance requirements for PUCCH

36.1043GPPBase Station (BS) radio transmission and receptionEvolved Universal Terrestrial Radio Access (E-UTRA)Release 18TS

8.3.1 DTX to ACK performance

The DTX to ACK requirement is valid for any number of receive antennas, for all frame structures and for any channel bandwidth.

The DTX to ACK probability for multi user PUCCH case denotes the probability that ACK is detected when nothing is sent on the wanted signal and the interfering signals are present.

8.3.1.1 Minimum requirement

The DTX to ACK probability, i.e. the probability that ACK is detected when nothing was sent, shall not exceed 1%, where the performance measure definition is as follows:

,

where:

● #(false ACK bits) denotes the number of detected ACK bits.

● #(ACK/NACK bits) denotes the number of encoded bits per sub-frame

● #(PUCCH DTX) denotes the number of DTX occasions

8.3.2 ACK missed detection requirements for single user PUCCH format 1a

The ACK missed detection probability is the probability of not detecting an ACK when an ACK was sent.

ACK/NACK repetitions are disabled for PUCCH transmission.

Test parameters for PUCCH transmission on two antenna ports are presented in Annex A.10.

8.3.2.1 Minimum requirements

The ACK missed detection probability shall not exceed 1% at the SNR given in table 8.3.2.1-1 for 1Tx and in table 8.3.2.1-2 for 2Tx case.

Table 8.3.2.1-1 Minimum requirements for single user PUCCH format 1a, 1Tx

Number of TX antennas

Number of RX antennas

Cyclic Prefix

Propagation conditions and

correlation matrix (Annex B)

Channel Bandwidth / SNR [dB]

1.4 MHz

3 MHz

5 MHz

10 MHz

15 MHz

20 MHz

1

2

Normal

EPA 5 Low

-2.5

-3.9

-4.8

-5.4

-5.3

-5.1

EVA 5 Low

-4.5

-5.1

-5.1

-5.0

-5.1

-5.1

EVA 70 Low

-4.9

-5.2

-5.2

-5.1

-5.2

-5.1

ETU 300* Low

-5.0

-5.1

-4.9

-5.0

-5.2

-5.2

Extended

ETU 70* Low

-4.2

-4.3

-4.1

-4.3

-4.2

-4.3

4

Normal

EPA 5 Low

-7.9

-8.4

-8.7

-8.9

-8.9

-9.0

EVA 5 Low

-8.8

-9.1

-9.1

-8.8

-8.9

-8.9

EVA 70 Low

-8.9

-9.0

-9.0

-8.8

-9.0

-8.8

ETU 300* Low

-8.7

-8.9

-8.7

-8.7

-8.9

-8.8

Extended

ETU 70* Low

-7.9

-8.1

-7.9

-8.1

-8.0

-8.0

8

Normal

EPA 5 Low

-11.2

-11.5

-12.2

-12.3

-12.3

-12.3

EVA 5 Low

-12.0

-12.0

-12.1

-12.1

-12.3

-12.2

EVA 70 Low

-12.0

-12.1

-12.2

-12.1

-12.3

-12.1

ETU 300* Low

-11.6

-11.6

-11.6

-11.8

-11.6

-11.8

Extended

ETU 70* Low

-10.5

-10.7

-10.6

-10.7

-10.6

-10.6

Note*: Not applicable for Local Area BS and Home BS.

Table 8.3.2.1-2 Minimum requirements for single user PUCCH format 1a, 2Tx

Number of TX antennas

Number of RX antennas

Cyclic Prefix

Propagation conditions

and

correlation matrix (Annex B)

Channel Bandwidth / SNR [dB]

1.4 MHz

3 MHz

5 MHz

10 MHz

15 MHz

20 MHz

2

2

Normal

EPA 5 Low

-4.6

-4.9

-6.4

-6.5

-6.5

-6.7

EVA 70 Low

-5.8

-5.9

-6.4

-5.9

-6.4

-6.4

4

Normal

EPA 5 Low

-8.5

-8.5

-9.3

-9.5

-9.5

-9.5

EVA 70 Low

-9.0

-9.2

-9.3

-9.3

-9.4

-9.5

2

8

Normal

EPA 5 Low

-11.4

-11.5

-11.9

-12.0

-11.9

-12.0

EVA 70 Low

-11.7

-11.8

-11.8

-11.8

-11.8

-11.8

8.3.3 CQI performance requirements for PUCCH format 2

The CQI block error probability (BLER) is defined as the conditional probability of incorrectly decoding the CQI information when the CQI information is sent. All CQI information shall be decoded (no exclusion due to DTX).

The CQI information bit payload per sub-frame is equal to 4 bits.

Test parameters for PUCCH transmission on two antenna ports are presented in Annex A.10.

8.3.3.1 Minimum requirements

The CQI block error probability shall not exceed 1% at the SNR given in table 8.3.3.1-1 for 1Tx and in table 8.3.3.1-2 for 2Tx case.

Table 8.3.3.1-1 Minimum requirements for PUCCH format 2, 1Tx

Number of TX antennas

Number of RX antennas

Cyclic Prefix

Propagation conditions and

correlation matrix (Annex B)

Channel Bandwidth / SNR [dB]

1.4 MHz

3 MHz

5 MHz

10 MHz

15 MHz

20 MHz

1

2

Normal

EVA 5* Low

-3.7

-4.1

-4.4

-4.0

-4.2

-4.2

ETU 70** Low

-3.9

-4.4

-4.2

-4.4

-4.4

-4.4

Note*: Not applicable for Wide Area BS and Medium Range BS.

Note**: Not applicable for Local Area BS and Home BS.

Table 8.3.3.1-2 Minimum requirements for PUCCH format 2, 2Tx

Number of TX antennas

Number of RX antennas

Cyclic Prefix

Propagation conditions

and

correlation matrix (Annex B)

Channel Bandwidth / SNR [dB]

1.4 MHz

3 MHz

5 MHz

10 MHz

15 MHz

20 MHz

2

2

Normal

EVA 5 Low

-5.7

-5.6

-5.9

-5.8

-5.9

-5.9

8.3.4 ACK missed detection requirements for multi user PUCCH format 1a

The ACK missed detection probability is the conditional probability of not detecting an ACK on the wanted signal in the presence of the wanted signal and the interfering signals.

Test parameters for multi user PUCCH case are presented in Annex A.9.

ACK/NACK repetitions are disabled for PUCCH transmission.

8.3.4.1 Minimum requirement

The ACK missed detection probability for multi user PUCCH case shall not exceed 1% at the SNR given in table 8.3.4.1‑1.

Table 8.3.4.1-1 Minimum requirements for multi user PUCCH case

Number of TX antennas

Number of RX antennas

Cyclic Prefix

Propagation conditions and

correlation matrix (Annex B)

Channel Bandwidth / SNR [dB]

1.4 MHz

3 MHz

5 MHz

10 MHz

15 MHz

20 MHz

1

2

Normal

ETU 70* Low

-4.1

-4.4

-4.4

-4.6

-4.6

-4.4

Note*: Not applicable for Local Area BS and Home BS.

8.3.5 ACK missed detection requirements for PUCCH format 1b with Channel Selection

The ACK missed detection probability is the probability of not detecting an ACK bit when an ACK bit was sent on particular channel, with each missed ACK bit counted as one error.

The number of encoded ACK bits per sub-frame is equal to 4 bits (AAAA),

ACK/NACK repetitions are disabled for PUCCH transmission.

This requirement is applicable for FDD and TDD.

8.3.5.1 Minimum requirements

The ACK missed detection probability shall not exceed 1% at the SNR given in table 8.3.5.1-1.

Table 8.3.5.1-1 Minimum requirements for PUCCH format 1b with Channel Selection

Number of Tx antennas

Number of RX antennas

Cyclic Prefix

Propagation Conditions and correlation matrix (Annex B)

Channel Bandwidth / SNR [dB]

1.4MHz

3MHz

5MHz

10 MHz

15MHz

20MHz

1

2

Normal

EPA 5 Low

–

–

–

-4.5

-4.6

-4.6

EVA70 Low

–

–

–

-4.3

-4.5

-4.5

4

Normal

EPA 5 Low

–

–

–

-8.4

-8.5

-8.6

EVA70 Low

–

–

–

-8.3

-8.5

-8.5

8

Normal

EPA 5 Low

–

–

–

-11.7

-11.8

-11.8

EVA70 Low

–

–

–

-11.5

-11.7

-11.6

8.3.6 ACK missed detection requirements for PUCCH format 3

The ACK missed detection probability is the probability of not detecting an ACK bit when an ACK bit was sent on the particular bit position, with each missed ACK bit being accounted as one error.

The number of encoded ACK/NACK bits per sub-frame is defined for two cases as presented below:

● 4AN bits: applicable for FDD and TDD

● 16AN bits : applicable for TDD

ACK/NACK repetitions are disabled for PUCCH transmission. Random codeword selection is assumed.

8.3.6.1 Minimum requirements

The ACK missed detection probability shall not exceed 1% at the SNR given in table 8.3.6.1-1 and table 8.3.6.1‑2, for 4 and 16 AN bits per sub-frame, respectively.

Table 8.3.6.1-1 Minimum requirements for PUCCH format 3, 4AN bits

Number of Tx antennas

Number of RX antennas

Cyclic Prefix

Propagation Conditions and correlation matrix (Annex B)

Channel Bandwidth / SNR [dB]

1.4MHz

3MHz

5MHz

10 MHz

15MHz

20MHz

1

2

Normal

EPA 5 Low

–

–

–

-3.7

-3.8

-3.8

EVA70 Low

–

–

–

-3.5

-3.6

-3.7

4

Normal

EPA 5 Low

–

–

–

-7.3

-7.4

-7.5

EVA70 Low

–

–

–

-7.2

-7.3

-7.3

8

Normal

EPA 5 Low

–

–

–

-11.1

-10.9

-11.1

EVA70 Low

–

–

–

-10.9

-11.0

-11.0

Table 8.3.6.1-2 Minimum requirements for PUCCH format 3, 16AN bits

Number of Tx antennas

Number of RX antennas

Cyclic Prefix

Propagation Conditions and correlation matrix (Annex B)

Channel Bandwidth / SNR [dB]

1.4MHz

3MHz

5MHz

10 MHz

15MHz

20MHz

1

2

Normal

EPA 5 Low

–

–

–

-1.3

-1.2

-1.2

EVA70 Low

–

–

–

-0.8

-0.9

-0.9

4

Normal

EPA 5 Low

–

–

–

-5.3

-5.3

-5.4

EVA70 Low

–

–

–

-5.0

-5.1

-5.1

8

Normal

EPA 5 Low

–

–

–

-8.8

-8.8

-8.9

EVA70 Low

–

–

–

-8.7

-8.8

-8.7

8.3.7 NACK to ACK requirements for PUCCH format 3

The NACK to ACK detection probability is the probability that an ACK bit is falsely detected when an NACK bit was sent on the particular bit position, where the NACK to ACK detection probability is defined as follows:

,

where:

● denotes the total number of NACK bits transmitted

● denotes the number of NACK bits decoded as ACK bits at the receiver, i.e. the number of received ACK bits

● NACK bits in the definition do not contain the NACK bits which are mapped from DTX, i.e. NACK bits received when DTX is sent should not be considered.

ACK/NACK repetitions are disabled for PUCCH transmission. Random codeword selection is assumed.

Note: NACK to ACK requirement only applies to the PUCCH format3 16AN bits cases.

8.3.7.1 Minimum requirement

The NACK to ACK probability shall not exceed 0,1% at the SNR given in table 8.3.7.1-1 for 16 AN bits.

Table 8.3.7.1-1 Minimum requirements for PUCCH format 3, 16AN bits

Number of Tx antennas

Number of RX antennas

Cyclic Prefix

Propagation Conditions and correlation matrix (Annex B)

Channel Bandwidth / SNR [dB]

1.4MHz

3MHz

5MHz

10 MHz

15MHz

20MHz

1

2

Normal

EPA 5 Low

–

–

–

1.4

1.6

1.5

EVA70 Low

–

–

–

2.1

1.9

1.9

4

Normal

EPA 5 Low

–

–

–

-3.1

-3.3

-3.5

EVA70 Low

–

–

–

-2.9

-3.1

-3.2

8

Normal

EPA 5 Low

–

–

–

-7.3

-7.3

-7.3

EVA70 Low

–

–

–

-7.0

-7.1

-7.2

8.3.8 CQI performance requirements for PUCCH format 2 with DTX detection

The requirements in this clause apply to a BS supporting PUCCH format 2 with DTX. It is optional for a BS to support PUCCH format 2 with DTX.

A BS may meet the PUCCH format 2 requirements specified in Clause 8.3.8.1 instead of requirements specified in Clause 8.3.3.1.

The CQI block error probability (BLER) is defined as the sum of the:

– conditional probability of incorrectly decoding the CQI information when the CQI information is sent and

– conditional probability of detecting UE transmission as DTX, when the CQI information is sent.

The CQI false alarm probability is defined as the conditional probability of false detecting the CQI information transmitted from UE when no CQI information is sent.

The CQI information bit payload per sub-frame is equal to 4 bits.

Test parameters for PUCCH transmission on two antenna ports are presented in Annex A.10.

8.3.8.1 Minimum requirements

The CQI false alarm probability and the CQI block error probability shall not exceed 10% and 1%, respectively, at the SNR given in table 8.3.8.1-1.

Table 8.3.8.1-1 Minimum requirements for PUCCH format 2 with DTX detection

Number of TX antennas

Number of RX antennas

Cyclic Prefix

Propagation conditions and correlation matrix (Annex B)

Channel Bandwidth / SNR [dB]

1.4 MHz

3 MHz

5 MHz

10 MHz

15 MHz

20 MHz

1

2

Normal

EVA 5* Low

-3.7

-4.0

-4.4

-4.0

-4.2

-4.2

ETU 70** Low

-3.7

-4.0

-3.7

-4.1

-3.9

-4.1

2

2

Normal

EVA 5 Low

-5.3

-5.2

-5.5

-5.4

-5.3

-5.5

Note*: Not applicable for Wide Area BS and Medium Range BS.

Note**: Not applicable for Local Area BS and Home BS.

8.3.9 PUCCH performance requirements for coverage enhancement

8.3.9.1 DTX to ACK performance

The DTX to ACK requirement is valid for any number of receive antennas, for all frame structures and for any channel bandwidth.

8.3.9.1.1 Minimum requirement

The DTX to ACK probability, i.e. the probability that ACK is detected when nothing is sent per PUCCH transmission, shall not exceed 1% per PUCCH transmission. A PUCCH transmission may take multiple subframes due to PUCCH transmission repetition. The performance measure is defined as follows:

,

where:

– #(false ACK bits) denotes the number of detected ACK bits per PUCCH transmission.

– #(ACK/NACK bits) denotes the number of encoded bits per PUCCH transmission.

– #(PUCCH DTX) denotes the number of DTX occasions per PUCCH transmission.

8.3.9.2 ACK missed detection requirements for single user PUCCH format 1a

The ACK missed detection probability is the probability of not detecting an ACK when an ACK is sent.

8.3.9.2.1 Minimum requirements

The ACK missed detection probability shall not exceed 1% at the SNR given in table 8.3.9.2.1-1 for 1Tx.

Table 8.3.9.2.1-1 Minimum requirements for single user PUCCH format 1a, 1Tx

Number of TX antennas

Number of RX antennas

Cyclic Prefix

Propagation conditions and

correlation matrix (Annex B)

Repetitions

Channel Bandwidth / SNR [dB]

3 MHz

5 MHz

10 MHz

15 MHz

20 MHz

1

2

normal

EPA5 Low

4

-5.2

-5.5

-5.5

-5.6

-5.5

8

-9.2

-11.0

-10.9

-11.1

-11.3

32

-13.7

-14.8

-15.1

-15.1

-15.1

Note 1: Frequency Hopping Intervals: 4 (FDD); 10 (TDD).

Note 2: Guard period shall be created according to TS36.211, 5.2.5 [12]

8.3.9.3 CQI performance requirements for PUCCH format 2

The CQI block error probability (BLER) is defined as the conditional probability of incorrectly decoding the CQI information when the CQI information is sent per PUCCH transmission. A PUCCH transmission may take multiple subframes due to PUCCH transmission repetition. All CQI information shall be decoded (no exclusion due to DTX).

The CQI information bit payload per PUCCH transmission is equal to 4 bits.

8.3.9.3.1 Minimum requirements

The CQI block error probability shall not exceed 1% at the SNR given in table 8.3. 9.3.1-1 for 1Tx.

Table 8.3.9.3.1-1 Minimum requirements for PUCCH format 2, 1Tx

Number of TX antennas

Number of RX antennas

Cyclic Prefix

Propagation conditions and

correlation matrix (Annex B)

Repetitions

Channel Bandwidth / SNR [dB]

3 MHz

5 MHz

10 MHz

15 MHz

20 MHz

1

2

normal

EVA5 Low

4

-4.1

-5.0

-5.1

-4.9

-4.7

8

-9.8

-10.3

-10.0

-10.1

-10.0

32

-13.7

-14.1

-13.8

-14.0

-13.9

Note 1: Frequency Hopping Intervals: 4 (FDD); 10 (TDD)

Note 2: Guard period shall be created according to TS36.211, 5.2.5 [12]

8.3.10 ACK missed detection requirements for PUCCH format 4

The ACK missed detection probability is the probability of not detecting an ACK bit when an ACK bit was sent on the particular bit position, with each missed ACK bit being accounted as one error.

The number of encoded ACK/NACK bits per sub-frame is defined for two cases as presented below:

● 24AN bits with 1PRB allocated

● 64AN bits with 2PRB allocated

The requirements are applicable for FDD only, TDD only and TDD-FDD CA.

The requirements are applicable for both PUCCH on PCell and PUCCH on SCell.

ACK/NACK repetitions are disabled for PUCCH transmission. DAI based codebook size determination is disabled. Random codeword selection is assumed.

8.3.10.1 Minimum requirements

The ACK missed detection probability shall not exceed 1% at the SNR given in table 8.3.10.1-1 and table 8.3.10.1‑2 for 24 AN bits with 1 PRB allocated and 64 AN bits with 2 PRB allocated per sub-frame, respectively.

Table 8.3.10.1-1 Minimum requirements for PUCCH format 4, 24AN bits with 1 PRB allocated

Number of TX antennas

Number of RX antennas

Cyclic Prefix

Propagation conditions and

correlation matrix (Annex B)

Channel Bandwidth / SNR [dB]

1.4 MHz

3 MHz

5 MHz

10 MHz

15 MHz

20 MHz

1

2

Normal

EPA 5 Low

–

–

–

1.2

1.1

1.0

EVA 70 Low

–

–

–

1.4

1.2

1.2

4

Normal

EPA 5 Low

–

–

–

-3.0

-2.8

-2.9

EVA 70 Low

–

–

–

-2.6

-3.0

-3.0

8

Normal

EPA 5 Low

–

–

–

-6.1

-6.1

-6.1

EVA 70 Low

–

–

–

-6.0

-6.0

-6.1

Table 8.3.10.1-2 Minimum requirements for PUCCH format 4, 64AN bits with 2 PRB allocated

Number of TX antennas

Number of RX antennas

Cyclic Prefix

Propagation conditions and

correlation matrix (Annex B)

Channel Bandwidth / SNR [dB]

1.4 MHz

3 MHz

5 MHz

10 MHz

15 MHz

20 MHz

1

2

Normal

EPA 5 Low

–

–

–

1.7

1.5

1.5

EVA 70 Low

–

–

–

2.1

2.0

1.9

4

Normal

EPA 5 Low

–

–

–

-3.0

-2.9

-2.9

EVA 70 Low

–

–

–

-2.5

-2.7

-2.7

8

Normal

EPA 5 Low

–

–

–

-6.3

-6.3

-6.4

EVA 70 Low

–

–

–

-6.0

-6.2

-6.2

8.3.11 ACK missed detection requirements for PUCCH format 5

The ACK missed detection probability is the probability of not detecting an ACK bit when an ACK bit was sent on the particular bit position, with each missed ACK bit being accounted as one error.

The number of encoded ACK/NACK bits per sub-frame is equal to 24 bits.

The requirement is applicable for FDD only, TDD only and TDD-FDD CA. The requirement is applicable for both PUCCH on PCell and PUCCH on SCell.

ACK/NACK repetitions are disabled for PUCCH transmission. DAI based codebook size determination is disabled. Random codeword selection is assumed.

8.3.11.1 Minimum requirements

The ACK missed detection probability shall not exceed 1% at the SNR given in table 8.3.11.1-1.

Table 8.3.11.1-1 Minimum requirements for PUCCH format 5

Number of Tx antennas

Number of RX antennas

Cyclic Prefix

Propagation Conditions and correlation matrix (Annex B)

Channel Bandwidth / SNR [dB]

1.4MHz

3MHz

5MHz

10 MHz

15MHz

20MHz

1

2

Normal

EPA 5 Low

–

–

–

1.6

1.3

1.3

EVA70 Low

–

–

–

1.6

1.5

1.5

4

Normal

EPA 5 Low

–

–

–

-2.9

-2.8

-2.8

EVA70 Low

–

–

–

-2.5

-2.8

-2.7

8

Normal

EPA 5 Low

–

–

–

-6.0

-5.9

-6.0

EVA70 Low

–

–

–

-5.8

-5.9

-6.0