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5G NR

UL FRC Update in 38.141 v16.9.0

This topic provides information for the release 16 uplink FRC update.

FR1

NR-U Channels

High Speed Train (HST) Channels

FR1-A3A

FR1-A3B

Interlaced PUSCH

FR1-A8

FR1 Coupling Rules

FR2

FR2-A3A

FR2-A7

UCI-multiplex Support

FR2 Coupling Rules

FR1

FRC Type

Reference Channels

New Added Reference Channels

A1

G-FR1-A1-1...9

G-FR1-A1-10...19

A2

G-FR1-A2-1...6

G-FR1-A2-7...14

A3

G-FR1-A3-8...14

G-FR1-A3-22...28

G-FR1-A3-31/32

G-FR1-A3-33/33A

G-FR1-A3-34/34A

A3A

None

G-FR1-A3A-1...4

A3B

None

G-FR1-A3B-1...4

A4

G-FR1-A4-8...14

G-FR1-A4-22...28

G-FR1-A4-29/29A

G-FR1-A4-30/30A

G-FR1-A4-31/31A

G-FR1-A4-32/32A

A5

G-FR1-A5-8...14

G-FR1-A5-15..16

A8 in 38.104

A7 in 38.141

None

G-FR1-A7/8-1...4

NR-U Channels

Table A.1-1a and Table A.2-1a are FRC for band n46 and n96.

NR-U cases are defined in G-FR1-A1-12…19 and G-FR1-A2-7…14. The FRC channels are used for bands n46 and n96, which are LAA (aka Unlicensed).

For NR-U channels, RA Type is coupled and automatically sets to Type 2. Channel bandwidth requires a fixed value that you must set accordingly.

If Bandwidth is not set as required, an error message occurs, conveniently reporting which selection is valid. The dialog's OK button will be inactive until the correct Bandwidth is selected. ClosedView image.

When “RAType 2” is used, “Interlace Inter (N)” will be shown instead of “RB Offset." For API the name is still RB Offset.

For some channels, the “RAType 2” definition cannot be fully aligned with the “NOTE3…13” in Table A.1-1a and “NOTE4…11” in Table A.2-1a.

One more parameter “Unused RB” is added to the UL-SCH channel to define how many RBs will not be used. “Unused RB” is not defined in the spec and will be 0 by default. ClosedView image.

Reference channel

Bandwidth

Subcarrier Spacing

Full RB

Useful RB (BWP RB Number)

Selected RB 

G-FR1-A1-12

10 MHz

15 kHz

52

50

N, N+10,N+20, N+30, N+40 where N={0,1,2,3,4,…,9}

G-FR1-A1-13

10 MHz

30 kHz

24

20

N, N+5, N+10, N+15 where N={0,1,2,3,4}.

G-FR1-A1-14

20 MHz

15 kHz

106

100

N, N+10,N+20,..N+90 where N={0,1,2,3,...,9}.

G-FR1-A1-15

20 MHz

30 kHz

51

50

N, N+5,N+10,..,N+45 where N={0,1,2,3,4}.

G-FR1-A1-16

40 MHz

15 kHz

216

210

N, N+10,N+20,...,N+200 where N={0,1,2,3,4,...,9}.

G-FR1-A1-17

40 MHz

30 kHz

106

105

N, N+5, N+10, ..., N+100 where N={0,1,2,3,4}.

G-FR1-A1-18

60 MHz

30 kHz

162

160

N, N+5,N+10,...,N+155 where N={0,1,2,3,4}.

G-FR1-A1-19

80 MHz

30 kHz

217

215

N, N+5,N+10,...,N+210 where N={0,1,2,3,4}.

G-FR1-A2-7

10 MHz

15 kHz

52

50

N, N+10, N+20, N+30, N+40 where N={0,1,2,3,4,5,6,7,8,9}.

G-FR1-A2-8

10 MHz

30 kHz

24

20

N, N+5, N+10, N+15 where N={0,1,2,3,4}

G-FR1-A2-9

20 MHz

15 kHz

106

100

N, N+10,N+20,..N+90 where N={0,1,2,3,...,9}.

G-FR1-A2-10

20 MHz

30 kHz

51

50

N, N+5,N+10,.., N+45 where N={0,1,2,3,4}.

G-FR1-A2-11

40 MHz

15 kHz

216

210

N, N+10,N+20,...,N+200 where N={0,1,2,3,4,...,9}

G-FR1-A2-12

40 MHz

30 kHz

106

105

N, N+5, N+10, ..., N+100 where N={0,1,2,3,4}.

G-FR1-A2-13

60 MHz

30 kHz

162

160

N, N+5,N+10,..., N+155 where N={0,1,2,3,4}.

G-FR1-A2-14

80 MHz

30 kHz

217

215

N, N+5,N+10,..., N+210 where N={0,1,2,3,4}.

The "Number of RB in RB set" restriction in 38.214 is removed.

When a UE is provided with nrofCRBs = 0 for all intra-cell guard band(s) on a carrier with μ, the UE is indicated that no intra-cell guard-bands are configured for the carrier and expects NRB-set,x > 1. For μ = 0, the UE expects the number of RBs within a RB set is between 100 and 110. For μ = 1, the UE expects the number of RBs within a RB set is between 50 and 55 except for at most one RB set which may contain 56 RBs.

For these test cases, "Useful RB" is always less than all RBs allocated in an RB Set and BWP. Because BWP must cover all RBs in RB set, the RB number in BWP should be same as "Full RB". A new parameter "unused RB" is added in UL-SCH.

Option 3 -> 2 PRB unused

 

 

 

 

 

 

 

 

interlace 1:

0

10

20

30

40

interlace 2:

1

11

21

31

41

interlace 3:

2

12

22

32

42

interlace 4:

3

13

23

33

43

interlace 5:

4

14

24

34

44

interlace 6:

5

15

25

35

45

interlace 7:

6

16

26

36

46

interlace 8:

7

17

27

37

47

interlace 9:

8

18

28

38

48

interlace 10:

9

19

29

39

49

unused:

50

51

 

 

 

It is only visible when "RA Type" is type 2. The name is from R4-2002508 and the default value is 0. This is an example of RB interlace definition with 2 "unused RB." 

High Speed Train (HST) Channels

The requirements are defined in 8.2.4. The Additional DM-RS position is = pos2.

The following channels are used for HST.

For HST cases,an additional DM-RS position is = pos2. For G-FR1-A3-33/34/33A/34A and G-FR1-A4-29/30/29A/30A, the DMRS-typeA-pos can be 2 or 3. So a new parameter “DMRS-typeA-pos” is added to the Uplink FRC Config dialog to set the first DMRS Position. ClosedView image.

FRC Type

Reference Channels

Subcarrier Spacing

A3

G-FR1-A3-33

15 KHz

G-FR1-A3-34

30kHz

G-FR1-A3-33A

15 KHz

G-FR1-A3-34A

30 kHz

A4

G-FR1-A4-29

15 KHz

G-FR1-A4-30

30 kHz

G-FR1-A4-29A

15 KHz

G-FR1-A4-30A

30 kHz

FR1-A3A

FR1-A3A channels are for PUSCH 0.001% BLER Test. The requirements are defined in 8.2.6.

FR1-A3A is a newly-added chapter for Fixed Reference Channels for performance requirements (QPSK, R=99/1024). The channels are used for PUSCH with 0.001% BLER so the code rate is small (8.2.7).

The channels are:

FR1-A3B

FR1-A3B is a newly-added chapter for Fixed Reference Channels for performance requirements (QPSK, R=308/1024). The channels are used for PUSCH Mapping Type B with non-slot transmission (8.2.8).

The channels are:

Interlaced PUSCH

Same as NR-U channels, the channels for Interlaced PUSCH are using RA Type 2, the bandwidth is fixed and “RB Offset” is shown as “Interlace Index (N)”.

The channels are:

FR1-A8

FR1-A8 is called A7 in 38.141-1 v16.9.0 and A8 in 38.141-1 and 38.104. It is a new chapter for Fixed Reference Channels for performance requirements (QPSK, R=157/1024).

The channels are:

FR1 Coupling Rules

Yellow highlighted cells in the table below indicate read-only.

FRC Type

DMRS-add-pos

Number Of Layers

Transform Precoding

Reference Channel Choices

PUSCH Mapping Type

Others

A1

1

1

false

G-FR1-A1-1...19

Type A

G-FR1-A1-12...19 is for NR-U

A2

1

1

false

G-FR1-A2-1...14

Type A

G-FR1-A2-8...14 is for NR-U

A3

1

1

false

G-FR1-A3-8...14

Type A | Type B

A3

1

2

false

G-FR1-A3-22...28

Type A | Type B

A3

1

1

true

G-FR1-A3-31...32

Type A | Type B

A3

2

1

false

G-FR1-A3-33/33A/34/34A

Type A | Type B

A3A

1

1

false

G-FR1-A3A-1...4

Type A | Type B

A3B

0

1

false

G-FR1-A3B-1...4

Type B

A4

1

1

false

G-FR1-A4-8...14

Type A | Type B

A4

1

2

false

G-FR1-A4-15...22

Type A | Type B

A4

2

1

false

G-FR1-A4-29/29A/30/30A/31/32/31A/32A

Type A | Type B

G-FR1-A4-29/29A/30/30A is for HST

31A/32A are defined in 38.141-1 only, not 38.104 yet.

 A5

1

1

false

G-FR1-A8...14

Type A | Type B

A5

0

1

false

G-FR1-A15/16

Type A | Type B

A8

2

1

false

G-FR1-A8-1/2

Type A | Type B

A8

1

1

false

G-FR1-A8-3/4

Type A | Type B

"RB Offset" will be shown as "Interlace Index (N)" for NR-U cases (G-FR1-A1-12...19 and G-FR1-A2-8...14).

TypeAPos is only available for "High Speed Train" cases (G-FR1-A3-33/34/33A/34A and G-FR1-A4-29/30/29A/30A).

FR2

FRC Type

Reference Channels

New Added Reference Channels

A1

G-FR2-A1-1...5

A3

G-FR2-A3-1...24

G-FR2-A3-25/26

A3A

G-FR2-A3A-1...8

A4

G-FR2-A4-1...20


A5

G-FR2-A5-1...10

A7

G-FR2-A7-1...10

PUSCH for 2-step RA type

There are 2 PRBs allocated and are used for 2-step RA type.

The channels are:

FR2-A3A

There are 8 new channels defined for FR2-A3A.

FR2-A7

A7 is a new added chapter for performance requirements (16QAM, R=434/1024). There are 10 channels with 5 for “Additional DM-RS position” = 0 and 5 channels for “Additional DM-RS position” = 1.

FR2-A7 channels are used for BS type 2-O (11.2.2).

The channels are the following:

UCI-multiplex Support

For G-FR1-A4-11 and G-FR2-A4-3/13, there will be a new parameter “Number of UCI Bits” is added. ClosedView image.

The valid value for “Number of UCI Bits” can only be 7 and 40.

The use cases for G-FR1-A4-11 are defined in 8.2.11.

The use cases for G-FR2-A4-3/13 are deifned in 11.2.2.3.

FR2 Coupling Rules

FRC Type

DMRS-add-pos

Number of Layers

Transform Precoding

Reference Channel Choices

PUSCH Mapping Type

A1

1

1

false

G-FR2-A1-1...5

Type A

A3

0

1

false

G-FR2-A3-1...5

Type B 

A3

0

2

false

G-FR2-A3-6...10

Type B 

A3

0

1

true

G-FR2-A3-11...12

Type B 

A3

1

1

false

G-FR2-A3-13...17

Type B

A3

1

2

false

G-FR2-A3-18...22

Type B

A3

1

1

true

G-FR2-A3-23...24

Type B 

A3

1

1

false

G-FR2-A3-25...26

Type A

New Added for FR2 PUSCH performance requirements for 2-step RA type

A3A

0

1

false

G-FR2-A3A-1...4

Type B 

A3A

1

1

false

G-FR2-A3A-5...8

Type B 

A4

0

1

false

G-FR2-A4-1...5

Type B

A4

0

2

false

G-FR2-A4-6...10

Type B

A4

1

1

false

G-FR2-A4-11...15

Type B

A4

1

2

false

G-FR2-A4-15...20

Type B

A5

0

1

false

G-FR2-A5-1...5

Type A | Type B

A5

1

1

false

G-FR2-A5-6...10

Type A | Type B

A7

0

2

false

G-FR2-A7-1...5

Type B

A7

1

2

false

G-FR2-A7-6...10

Type B