Granted Patent B2

US 12,375,149 · App. 18/506,025 · Granted Jul 29, 2025

Inventors: Md. Saifur Rahman (Plano, TX); Eko Onggosanusi (Coppell, TX)

Assignee: Samsung Electronics Co., Ltd.

H04B7/0626H04B7/0639

Abstract

Claims (378)

1. A user equipment (UE) comprising:

a transceiver configured to receive a configuration about a channel state information (CSI) report, the configuration indicating (i) a value of N 4 , (ii) a value of paramCombination indicating values of three parameters, and (iii) a codebookType; and

a processor operably coupled to the transceiver, the processor, based on the configuration, configured to determine the CSI report,

wherein the transceiver is further configured to transmit the CSI report, and

wherein N 4 is a number of time-domain (TD) slot intervals.

2. The UE of claim 1 , wherein, when the codebookType=typeII-Doppler-r18:

the paramCombination corresponds to paramCombination-Doppler-r18,

the three parameters correspond to (L, p v , β), where v is a number of layers, and

the value of N 4 belongs to a set including {1,2,4,8}.

3. The UE of claim 2 , wherein the values of the three parameters are according to:

p υ

paramCombination-

υ ∈

υ ∈

Doppler-r18

L

{1, 2}

{3, 4}

β

v1

2

⅛

  1/16

¼

v2

2

¼

⅛

½

v3

4

¼

⅛

¼

v4

4

¼

¼

¼

v5

4

¼

¼

½

v6

4

¼

¼

¾

v7

4

½

¼

½

v8

6

¼

—

½

v9

6

¼

—

 ¾.

4. The UE of claim 1 , wherein, when the codebookType=typeII-Doppler-PortSelection-r18:

the paramCombination corresponds to paramCombinationDoppler-PS-r18,

the three parameters correspond to (M, α, β), and

the value of N 4 =1.

5. The UE of claim 4 , wherein the values of the three parameters are according to:

paramCombinationDoppler-PS-r18

M

α

β

1

1

¾

½

2

1

1

½

3

1

1

¾

4

1

1

1

5

2

½

½

6

2

¾

½

7

2

1

½

8

2

1

 ¾.

6. The UE of claim 4 , wherein a number of TD channel quality indicators (CQIs) associated with N 4 =1 TD slot interval is one.

7. The UE of claim 1 , wherein:

the processor is further configured to determine at least one of:

A vectors, each of length

P

CSIRS

2

,

B vectors, each of length N 3 ,

Q vectors, each of length N 4 , when N 4 >1, and

2C coefficients, C coefficients associated with each of two halves of P CSIRS ; and

the transceiver is further configured to transmit the CSI report including indicators indicating at least one of: (i) the A vectors, (ii) the B vectors, (ii) the Q vectors when N 4 >1, and (iv) amplitude and phase of K NZ coefficients that are non-zero,

N 3 >1,

K NZ ≤2C,

P CSIRS is a number of CSI-reference signal (RS) ports configured for the CSI report,

when the codebookType=typeII-Doppler-r18:

A=L,

B=M v ,

C=ABQ when N 4 >1, and

C=AB when N 4 =1, and

when the codebookType=typeII-Doppler-PortSelection-r18:

A

=

α

⁢

P

CSIRS

2

,

B=M, and

C=AB.

8. A base station (BS) comprising:

a processor; and

a transceiver operably coupled to the processor, the transceiver configured to:

transmit a configuration about a channel state information (CSI) report, the configuration indicating (i) a value of N 4 , (ii) a value of paramCombination indicating values of three parameters, and (iii) a codebookType; and

receive the CSI report,

wherein N 4 is a number of time-domain (TD) slot intervals.

9. The BS of claim 8 , wherein, when the codebookType=typeII-Doppler-r18:

the paramCombination corresponds to paramCombination-Doppler-r18,

the three parameters correspond to (L, p v , β), where v is a number of layers, and

the value of N 4 belongs to a set including {1,2,4,8}.

10. The BS of claim 9 , wherein the values of the three parameters are according to:

p υ

paramCombination-

υ ∈

υ∈

Doppler-r18

L

{1, 2}

{3, 4}

β

v1

2

⅛

  1/16

¼

v2

2

¼

⅛

½

v3

4

¼

⅛

¼

v4

4

¼

¼

¼

v5

4

¼

¼

½

v6

4

¼

¼

¾

v7

4

½

¼

½

v8

6

¼

—

½

v9

6

¼

—

 ¾.

11. The BS of claim 8 , wherein, when the codebookType=typeII-Doppler-PortSelection-r18:

the paramCombination corresponds to paramCombinationDoppler-PS-r18,

the three parameters correspond to (M, α, β), and

the value of N 4 =1.

12. The BS of claim 11 , wherein the values of the three parameters are according to:

paramCombinationDoppler-PS-r18

M

α

β

1

1

¾

½

2

1

1

½

3

1

1

¾

4

1

1

1

5

2

½

½

6

2

¾

½

7

2

1

½

8

2

1

 ¾.

13. The BS of claim 11 , wherein a number of TD channel quality indicators (CQIs) associated with N 4 =1 TD slot interval is one.

14. The BS of claim 8 , wherein:

the CSI report includes indicators indicating at least one of:

A vectors, each of length

P

CSIRS

2

,

B vectors, each of length N 3 ,

Q vectors, each of length N 4 , when N 4 >1, and

amplitude and phase of K NZ coefficients that are non-zero,

N 3 >1,

K NZ ≤2C,

P CSIRS is a number of CSI-reference signal (RS) ports configured for the CSI report,

when the codebookType=typeII-Doppler-r18:

A=L,

B=M v ,

C=ABQ when N 4 >1, and

C=AB when N 4 =1, and

when the codebookType=typeII-Doppler-PortSelection-r18:

A

=

α

⁢

P

CSIRS

2

,

B=M, and

C=AB.

15. A method performed by a user equipment (UE), the method comprising:

receiving a configuration about a channel state information (CSI) report, the configuration indicating (i) a value of N 4 , (ii) a value of paramCombination indicating values of three parameters, and (iii) a codebookType;

determining the CSI report based on the configuration; and

transmitting the CSI report,

wherein N 4 is a number of time-domain (TD) slot intervals.

16. The method of claim 15 , wherein, when the codebookType=typeII-Doppler-r18:

the paramCombination corresponds to paramCombination-Doppler-r18,

the three parameters correspond to (L, p v , β), where v is a number of layers, and

the value of N 4 belongs to a set including {1,2,4,8}.

17. The method of claim 16 , wherein the values of the three parameters are according to:

p υ

paramCombination-

υ ∈

υ ∈

Doppler-r18

L

{1, 2}

{3, 4}

β

v1

2

⅛

  1/16

¼

v2

2

¼

⅛

½

v3

4

¼

⅛

¼

v4

4

¼

¼

¼

v5

4

¼

¼

½

v6

4

¼

¼

¾

v7

4

½

¼

½

v8

6

¼

—

½

v9

6

¼

—

 ¾.

18. The method of claim 15 , wherein, when the codebookType=typeII-Doppler-PortSelection-r18:

the paramCombination corresponds to paramCombinationDoppler-PS-r18,

the three parameters correspond to (M, α, β), and

the value of N 4 =1.

19. The method of claim 18 , wherein the values of the three parameters are according to:

paramCombinationDoppler-PS-r18

M

α

β

1

1

¾

½

2

1

1

½

3

1

1

¾

4

1

1

1

5

2

½

½

6

2

¾

½

7

2

1

½

8

2

1

 ¾.

20. The method of claim 18 , wherein a number of TD channel quality indicators (CQIs) associated with N 4 =1 TD slot interval is one.

Assignments (1)

Continuity (10)

References Cited (24)