Configuration and design of CQI and MCS tables for 5G communications

1. An apparatus, comprising: a processor configured to cause a user equipment (UE) to:

decode first RRC configuration information received from a base station, the first RRC configuration information including a channel quality indicator (CQI) table indication identifying a CQI table;

decode second RRC configuration information, the second RRC configuration information including a modulation coding scheme (MCS) table indication identifying an MCS table, the identified MCS table comprising one of a first MCS table and a second MCS table;

encode channel state information (CSI), the CSI including a CQI index associated with the CQI table, the CQI index for MCS selection by the base station;

decode downlink control information (DCI) received via a physical downlink control channel (PDCCH), the DCI providing a downlink (DL) grant for a physical downlink shared channel (PDSCH) reception and an MCS index to the MCS table;

select a target code rate (TCR) using the identified MCS table based on the MCS index, wherein if the first MCS table is identified, a higher TCR is selected based on the MCS index than it the second MCS table is identified, wherein the second MCS table includes the following modulation order and target code rate for MCS index values of 0-5:

MCS Index

Modulation Order

Target code Rate

Spectral

I MCS

Q m

R × [1024]

efficiency

0

2

30

0.0586

1

2

40

0.0781

2

2

50

0.0977

3

2

64

0.1250

4

2

78

0.1523

5

2

99

0.1934

and

decode the PDSCH based on the DL grant and using modulation order and target code rate corresponding to the MCS index to the MCS table.

2. The apparatus of claim 1 , wherein the processor is further configured to cause the UE to: determine the CQI index for reporting as part of the CSI based on the CQI table indication and a transport block error probability associated with the CQI table.

3. The apparatus of claim 2 , wherein the processor is further configured to cause the UE to: determine the transport block error probability is 0.1 or 0.00001 and is determined based on the CQI table indication.

4. The apparatus of claim 1 , wherein the CQI table is as follows:

CQI

code rate ×

index

modulation

1024

efficiency

0

out of range

1

QPSK

30

0.0586

2

QPSK

50

0.0977

3

QPSK

78

0.1523

4

QPSK

120

0.2344

5

QPSK

193

0.3770

6

QPSK

308

0.6016

7

QPSK

449

0.8770

8

QPSK

602

1.1758

9

16QAM

378

1.4766

10

16QAM

490

1.9141

11

16QAM

616

2.4063

12

64QAM

466

2.7305

13

64QAM

567

3.3223

14

64QAM

666

3.9023

15

64QAM

772

4.5234

5. The apparatus of claim 1 , wherein the MCS table indication is an mcs-Table parameter communicated via the second RRC configuration information.

6. The apparatus of claim 1 , wherein the processor is further configured to cause the UE to: decode a third RRC configuration information, the third RRC configuration information including an MCS table indication identifying an MCS table for uplink communications.

7. The apparatus of claim 6 , wherein the MCS table for the uplink communications includes the following modulation order and target code rate for MCS index values of 0-3, when the uplink communications use Discrete Fourier Transform (DFT) spread Orthogonal Frequency Division Multiplexing (OFDM) (DFT-s-OFDM) or transform precoding:

MCS Index

Modulation Order

Spectral

I MCS

Q m

Target code Rate R × 1024

efficiency

0

q

 60/q

0.0586

1

q

 80/q

0.0781

2

q

100/q

0.0977

3

q

128/q

0.1250

8. The apparatus of claim 6 , wherein the MCS table for the uplink communications includes the following modulation order and target code rate for MCS index values 0-5, when the uplink communications use Cyclic Prefix Orthogonal Frequency Division Multiplexing (CP-OFDM):

MCS Index

Modulation Order

Target code

Spectral

I MCS

Q m

Rate R × [1024]

efficiency

0

2

30

0.0586

1

2

40

0.0781

2

2

50

0.0977

3

2

64

0.1250

4

2

78

0.1523

5

2

99

0.1934

9. The apparatus of claim 1 , further comprising transceiver circuitry coupled to the processor; and, one or more antennas coupled to the transceiver circuitry.

10. A non-transitory computer-readable storage medium that stores instructions for execution by one or more processors of a base station (BS) operating in a 5G network, the instructions to configure the one or more processors for New Radio (NR) communications and to cause the BS to:

encode a first radio resource control (RRC) configuration information for transmission to a user equipment (UE), the first RRC configuration information including a channel quality indicator (CQI) table indication identifying a CQI table;

encode a second RRC configuration information for transmission to the UE, the second RRC configuration information including a modulation and coding scheme (MCS) table indication identifying an MCS table, the identified MCS table comprising one of a first MCS table and a second MCS table;

provide scheduling including a downlink (DL) grant using the identified MCS table, wherein if the first MCS table is identified, a higher target code rate (TCR) corresponds to an MCS index than if the second MCS table is identified, wherein the second MCS table includes the following modulation order and target code rate for MCS index values of 0-5:

MCS Index

Modulation Order

Target code Rate

Spectral

I MCS

Q m

R × [1024]

efficiency

0

2

30

0.0586

1

2

40

0.0781

2

2

50

0.0977

3

2

64

0.1250

4

2

78

0.1523

5

2

99

0.1934

and

encode DL information for transmission via a physical downlink shared channel (PDSCH) using the MCS table.

11. The non-transitory computer-readable storage medium of claim 10 , wherein the CQI table is as follows:

CQI index

modulation

code rate × 1024

efficiency

0

out of range

1

QPSK

30

0.0586

2

QPSK

50

0.0977

3

QPSK

78

0.1523

4

QPSK

120

0.2344

5

QPSK

193

0.3770

6

QPSK

308

0.6016

7

QPSK

449

0.8770

8

QPSK

602

1.1758

9

16QAM

378

1.4766

10

16QAM

490

1.9141

11

16QAM

616

2.4063

12

64QAM

466

2.7305

13

64QAM

567

3.3223

14

64QAM

666

3.9023

15

64QAM

772

4.5234

12. The non-transitory computer-readable storage medium of claim 10 , wherein the instructions further cause the BS to:

encode a third RRC signaling, the third RRC signaling including an MCS table indication identifying an MCS table for uplink communications.

13. The non-transitory computer-readable storage medium of claim 12 , wherein the MCS table for the uplink communications includes the following modulation order and target code rate for MCS index values of 0-3, when the uplink communications use Discrete Fourier Transform (DFT) spread Orthogonal Frequency Division Multiplexing (OFDM) (DFT-s-OFDM) or transform precoding:

MCS Index

Modulation Order

Target code Rate

Spectral

I MCS

Q m

R × 1024

efficiency

0

q

 60/q

0.0586

1

q

 80/q

0.0781

2

q

100/q

0.0977

3

q

128/q

0.1250

14. The non-transitory computer-readable storage medium of claim 10 , wherein the MCS table indication is an arcs-Table parameter communicated via the second RRC signaling.

15. The non-transitory computer-readable storage medium of claim 10 , wherein the instructions cause the BS to: encode a third RRC configuration information, the third RRC configuration information including an MCS table indication identifying an MCS table for uplink communications.

16. The non-transitory computer-readable storage medium of claim 15 , wherein the MCS table for the uplink communications includes the following modulation order and target code rate for MCS index values of 0-3, when the uplink communications use Discrete Fourier Transform (DFT) spread Orthogonal Frequency Division Multiplexing (OFDM) (DFT-s-OFDM) or transform precoding:

Modulation

MCS Index

Order

Target code

Spectral

I MCS

Q m

Rate R × 1024

efficiency

0

q

 60/q

0.0586

1

q

 80/q

0.0781

2

q

100/q

0.0977

3

q

128/q

 0.1250.

17. A non-transitory computer-readable storage medium that stores instructions for execution by one or more processors of a user equipment (UE) operating in a 5G network, the instructions to configure the one or more processors for New Radio (NR) communications and to cause the UE to:

receive a first radio resource control (RRC) configuration information received from a base station, the first RRC configuration information including a channel quality indicator (CQI) table indication identifying a CQI table;

receive a second RRC configuration information, the second RRC configuration information including an MCS table indication identifying an MCS table, the identified MCS table comprising one of a first MCS table and a second MCS table;

transmit, to the base station, channel state information (CSI), the CSI including a CQI index associated with the CQI table, the CQI index for MCS selection by the base station; and

receive scheduling including a downlink (DL) grant using the identified MCS table, wherein if the first MCS table is identified, a higher TCR is selected based on a MCS index than if the second MCS table is identified, wherein the second MCS table includes the following modulation order and target code rate for MCS index values of 0-5:

MCS Index

Modulation Order

Target code Rate

Spectral

I MCS

Q m

R × [1024]

efficiency

0

2

30

0.0586

1

2

40

0.0781

2

2

50

0.0977

3

2

64

0.1250

4

2

78

0.1523

5

2

99

0.1934

18. The non-transitory computer-readable storage medium of claim 17 , wherein the instructions cause the UE to:

determine the CQI index for reporting as part of the CSI based on the CQI table indication and a transport block error probability associated with the CQI table.

19. The non-transitory computer-readable storage medium of claim 18 , wherein the instructions cause the LYE to:

determine the transport block error probability is 0.1 or 0.00001 and is determined based on the CQI table indication.

20. The non-transitory computer-readable storage medium of claim 17 , wherein the CQI table is as follows:

CQI index

modulation

code rate × 1024

efficiency

0

out of range

1

QPSK

30

0.0586

2

QPSK

50

0.0977

3

QPSK

78

0.1523

4

QPSK

120

0.2344

5

QPSK

193

0.3770

6

QPSK

308

0.6016

7

QPSK

449

0.8770

8

QPSK

602

1.1758

9

16QAM

378

1.4766

10

16QAM

490

1.9141

11

16QAM

616

2.4063

12

64QAM

466

2.7305

13

64QAM

567

3.3223

14

64QAM

666

3.9023

15

64QAM

772

4.5234