Method and apparatus for uplink control information omission

1. A user equipment (UE) for channel state information, (CSI) reporting in a wireless communication system, the UE comprising:

a transceiver configured to transmit and receive a signal and

a controller coupled with the transceiver and configured to:

receive, from a base station, configuration information configuring an enhanced type CSI report,

identify the enhanced type CSI report comprising a first CSI part including a channel quality indicator (CQI), a rank indicator (RI), and an indication of a total number of nonzero amplitude coefficients across layers and a second CSI part including a precoding matrix indicator (PMI), the PMI comprising a plurality of PMI components, wherein one or more PMI components of the plurality of PMI components comprise sub-components and indicate information on nonzero coefficients across v layers,

identify a priority value P for each sub-component of the one or more PMI components,

partition the second CSI part into Group 0, Group 1, and Group 2 such that the sub-components of the one or more PMI components are divided into Group 1 and Group 2 based on the identified priority values P for each sub-component, and

transmit, to the base station, the first CSI part and at least a portion of the second CSI part on a physical uplink shared channel (PUSCH) based on a resource allocation for the enhanced type CSI report, wherein the at least a portion of the second CSI part is one of Group 0, Group 0 and Group 1, or Group 0, Group 1, and Group 2,

wherein the priority value P for each of the sub-components indexed by l, i, and m is identified as:

P ( l,i,m )=2 L·v·F 1 ( m )+ v ·( i )+ l,

where v≥1 and is a rank value indicated by the RI,

where L is a parameter associated with a number of beams configured by the configuration information,

where i=0,1, . . . ,2L−1 is a spatial domain (SD) beam index,

where l=1,2, . . . , v is a layer index, and

where m−0,1,2, . . . , M−1 is a frequency domain (FD) index, and M is a number of FD basis vectors,

wherein a function F 1 (m) permutes values {0,1,2, . . . ,M−1} of the FD index m based on a permutation order of basis vector indices k m =k 0 , k 1 , . . . k M-1 which correspond to the FD index m, where k m ∈{0, 1, . . . , N 3 −1} and N 3 is determined based on a number of subbands configured to the UE,

wherein the FD basis vector indices k m are permuted based on a function given by min(2k m , 2(N 3 −k m )−1), and

wherein a sub-component with a higher priority has a lower priority value P.

2. The UE of claim 1 , wherein the one or more of the PMI components include the following:

{i 2,4,l :l=1, . . . , v}, where i 2,4,l indicates amplitudes of the K l NZ non-zero coefficients for layer l, where K l NZ is a number of non-zero coefficients for layer l;

{i 2,5,l :l=1, . . . , v}, where i 2,5,l indicates phases of the K l NZ non-zero coefficients for layer l; and

{i 1,7,l :l=1, . . . , v}, where i 1,7,l indicates indices (i, m) of the K l NZ non-zero coefficients for layer l; and

wherein each of i 2,4,l , i 2,5,l , and i 1,7,l comprise 2LM sub-components.

3. The UE of claim 2 , wherein based on the identified priority values of each of the K NZ non-zero coefficients across v layers, where K NZ =Σ l=1 v K l NZ :

⌈

K

NZ

2

⌉

-

v

sub-components of {i 2,4,l :l=1, . . . , v} having a higher priority are included in Group 1 and

⌊

K

NZ

2

⌋

sub-components of {i 2,4,l :l=1, . . . , v} having a lower priority are included in Group 2, and v sub-components of {i 2,4,l :l=1, . . . , v} corresponding to strongest coefficients, one for each layer, are excluded from Group 1 and Group 2;

⌈

K

NZ

2

⌉

-

v

sub-components of {i 2,5,l :l=1, . . . , v} having a higher priority are included in Group 1,

⌊

K

NZ

2

⌋

sub-components of {i 2,5,l :l=1, . . . , v} having a lower priority are included in Group 2, and v sub-components of {i 2,5,l :l=1, . . . , v} corresponding to the strongest coefficients, one for each layer, are excluded from Group 1 and Group 2; and

v

*

2

⁢

LM

v

-

⌊

K

NZ

2

⌋

sub-components of {i 1,7,l :l=1, . . . , v} having a higher priority are included in Group 1 and

⌊

K

NZ

2

⌋

sub-components of {i 1,7,l :l=1, . . . , v} having a lower priority are included in Group 2.

4. The UE of claim 3 , wherein the Group 0 includes a PMI component indicating a strongest coefficient indicator.

5. A base station (BS) in a wireless communication system, the BS comprising:

a transceiver configured to transmit and receive a signal; and

a controller coupled with the transceiver and configured to:

transmit, to a user equipment (UE) configuration information configuring an enhanced type channel state information (CSI) report, and

receive, from the UE, the enhanced type CSI report comprising a first CSI part including a channel quality indicator (CQI), a rank indicator (RI), and an indication of a total number of nonzero amplitude coefficients across layers and at least a portion of a second CSI part on a physical uplink shared channel (PUSCH) based on a resource allocation for the enhanced type CSI report,

wherein the second CSI part includes a precoding matrix indicator (PMI), the PMI comprising a plurality of PMI components,

wherein one or more PMI components of the plurality of PMI components comprise sub-components and indicate information on nonzero coefficients across v layers,

wherein the second CSI part is partitioned into Group 0, Group 1, and Group 2 such that the sub-components of the one or more PMI components are divided into Group 1 and Group 2 based on priority value P for each sub-component of the one or more PMI components, and

wherein the at least a portion of the second CSI part is one of Group 0, Group 0 and Group 1, or Group 0, Group 1, and Group 2,

wherein the priority value P for each of the sub-components indexed by l, i, and m is identified as:

P ( l,i,m )=2 L·v·F 1 ( m )+ v ·( i )+ l,

where v≥1 and is a rank value indicated by the RI,

where L is a parameter associated with a number of beams configured by the configuration information,

where i=0,1, . . . ,2L−1 is a spatial domain (SD) beam index,

where l=1,2, . . . , v is a layer index, and

where m−0,1,2, . . . , M−1 is a frequency domain (FD) index, and M is a number of FD basis vectors,

wherein a function F 1 (m) permutes values {0,1,2, . . . ,M−1} of the FD index m based on a permutation order of basis vector indices k m =k 0 , k 1 , . . . k M-1 which correspond to the FD index m, where k m ∈{0, 1, . . . , N 3 −1} and N 3 is determined based on a number of subbands configured to the UE,

wherein the FD basis vector indices k m are permuted based on a function given by min(2k m , 2(N 3 −k m )−1), and

wherein a sub-component with a higher priority has a lower priority value P.

6. The BS of claim 5 , wherein the one or more of the PMI components include the following:

{i 2,4,l :l=1, . . . , v}, where i 2,4,l indicates amplitudes of the K l NZ non-zero coefficients for layer l, where K l NZ is a number of non-zero coefficients for layer l;

{i 2,5,l :l=1, . . . , v}, where i 2,5,l indicates phases of the K l NZ non-zero coefficients for layer l; and

{i 1,7,l :l=1, . . . , v}, where i 1,7,l indicates indices (i, m) of the K l NZ non-zero coefficients for layer l; and

wherein each of i 2,4,l , i 2,5,l , and i 1,7,l comprise 2LM sub-components.

7. The B S of claim 6 , wherein based on the identified priority values of each of the K NZ non-zero coefficients across v layers, where K NZ =Σ l=1 v K l NZ :

⌈

K

NZ

2

⌉

-

υ

sub-components of {i 2,4,l :l=1, . . . , v} having a higher priority are included in Group 1 and

⌊

K

NZ

2

⌋

sub-components of {i 2,4,l :l=1, . . . , v} having a lower priority are included in Group 2, and v sub-components of {i 2,4,l :l=1, . . . , v} corresponding to strongest coefficients, one for each layer, are excluded from Group 1 and Group 2;

⌈

K

N

⁢

Z

2

⌉

-

v

sub-components of {i 2,5,l :l=1, . . . , v} having a higher priority are included in Group 1,

⌊

K

NZ

2

⌋

sub-components of {i 2,5,l :l=1, . . . , v} having a lower priority are included in Group 2, and v sub-components of {i 2,5,l :l=1, . . . , v} corresponding to the strongest coefficients, one for each layer, are excluded from Group 1 and Group 2; and

υ

*

2

⁢

LM

υ

-

⌊

K

NZ

2

⌋

sub-components of {i 1,7,l :l=1, . . . , v} having a higher priority are included in Group 1 and

⌊

K

NZ

2

⌋

sub-components of {i 1,7,l :l=1, . . . , v} having a lower priority are included in Group 2.

8. The BS of claim 5 , wherein the Group 0 includes a PMI component indicating a strongest coefficient indicator.

9. A method performed by a user equipment (UE) for channel state information (CSI) reporting in a wireless communication system, the method comprising:

receiving, from a base station, configuration information configuring an enhanced type CSI report;

identifying the enhanced type CSI report comprising a first CSI part including a channel quality indicator (CQI), a rank indicator (RI), and an indication of a total number of nonzero amplitude coefficients across layers and a second CSI part including a precoding matrix indicator (PMI), the PMI comprising a plurality of PMI components, wherein one or more PMI components of the plurality of PMI components comprise sub-components and indicate information on nonzero coefficients across v layers,

identifying a priority value P for each sub-component of the one or more PMI components,

partitioning the second CSI part into Group 0, Group 1, and Group 2 such that the sub-components of the one or more PMI components are divided into Group 1 and Group 2 based on the identified priority values P for each sub-component, and

transmitting, to the base station, the first CSI part and at least a portion of the second CSI part on a physical uplink shared channel (PUSCH) based on a resource allocation for the enhanced type CSI report,

wherein the at least a portion of the second CSI part is one of Group 0, Group 0 and Group 1, or Group 0, Group 1, and Group 2,

wherein the priority value P for each of the sub-components indexed by l, i, and m is identified as:

P ( l,i,m )=2 L·v·F 1 ( m )+ v ·( i )+ l,

where v≥1 and is a rank value indicated by the RI,

where L is a parameter associated with a number of beams configured by the configuration information,

where i=0,1, . . . ,2L−1 is a spatial domain (SD) beam index,

where l=1,2, . . . , v is a layer index, and

where m−0,1,2, . . . , M−1 is a frequency domain (FD) index, and M is a number of FD basis vectors,

wherein a function F 1 (m) permutes values {0,1,2, . . . ,M−1} of the FD index m based on a permutation order of basis vector indices k m =k 0 , k 1 , . . . k M-1 which correspond to the FD index m, where k m ∈{0, 1, . . . , N 3 −1} and N 3 is determined based on a number of subbands configured to the UE,

wherein the FD basis vector indices k m are permuted based on a function given by min(2k m , 2(N 3 −k m )−1), and

wherein a sub-component with a higher priority has a lower priority value P.

10. The method of claim 9 , wherein the one or more of the PMI components include the following:

{i 2,4,l :l=1, . . . , v}, where i 2,4,l indicates amplitudes of the K l NZ non-zero coefficients for layer l, where K l NZ is a number of non-zero coefficients for layer l;

{i 2,5,l :l=1, . . . , v}, where i 2,5,l indicates phases of the K l NZ non-zero coefficients for layer l; and

{i 1,7,l :l=1, . . . , v}, where i 1,7,l indicates indices (i, m) of the K l NZ non-zero coefficients for layer l; and

wherein each of i 2,4,l , i 2,5,l , and i 1,7,l comprise 2LM sub-components.

11. The method of claim 10 , wherein based on the identified priority values of each of the K NZ non-zero coefficients across v layers, where K NZ =Σ l=1 v K l NZ :

⌈

K

NZ

2

⌉

-

υ

sub-components of {i 2,4,l :l=1, . . . , v} having a higher priority are included in Group 1 and

⌊

K

NZ

2

⌋

sub-components of {i 2,4,l :l=1, . . . , v} having a lower priority are included in Group 2, and v sub-components of {i 2,4,l :l=1, . . . , v} corresponding to strongest coefficients, one for each layer, are excluded from Group 1 and Group 2;

⌈

K

NZ

2

⌉

-

υ

sub-components of {i 2,5,l :l=1, . . . , v} having a higher priority are included in Group 1,

⌊

K

NZ

2

⌋

sub-components of {i 2,5,l :l=1, . . . , v} having a lower priority are included in Group 2, and v sub-components of {i 2,5,l :l=1, . . . , v} corresponding to the strongest coefficients, one for each layer, are excluded from Group 1 and Group 2; and

υ

*

2

⁢

LM

υ

-

⌊

K

NZ

2

⌋

sub-components of {i 1,7,l :l=1, . . . , v} having a higher priority are included in Group 1 and

⌊

K

NZ

2

⌋

sub-components of {i 1,7,l :l=1, . . . , v} having a lower priority are included in Group 2.

12. The method of claim 9 , wherein the Group 0 includes a PMI component indicating a strongest coefficient indicator.

13. A method performed by a base station in a wireless communication system, the method comprising:

transmitting, to a user equipment (UE), configuration information configuring an enhanced type channel state information (CSI) report; and

receiving, from the UE, the enhanced type CSI report comprising a first CSI part including a channel quality indicator (CQI), a rank indicator (RI), and an indication of a total number of nonzero amplitude coefficients across layers and at least a portion of a second CSI part on a physical uplink shared channel (PUSCH) based on a resource allocation for the enhanced type CSI report,

wherein the second CSI part includes a precoding matrix indicator (PMI), the PMI comprising a plurality of PMI components,

wherein one or more PMI components of the plurality of PMI components comprise sub-components and indicate information on nonzero coefficients across v layers,

wherein the second CSI part is partitioned into Group 0, Group 1, and Group 2 such that the sub-components of the one or more PMI components are divided into Group 1 and Group 2 based on a priority value P for each sub-component of the one or more PMI components, and

wherein the at least a portion of the second CSI part is one of Group 0, Group 0 and Group 1, or Group 0, Group 1, and Group 2,

wherein the priority value P for each sub-component indexed by l, i, and m is identified as:

P ( l,i,m )=2 L·v·F 1 ( m )+ v ·( i )+ l,

where v≥1 and is a rank value indicated by the RI,

where L is a parameter associated with a number of beams configured by the configuration information,

where i=0,1, . . . ,2L−1 is a spatial domain (SD) beam index,

where l=1,2, . . . ,v is a layer index, and

where m−0,1,2, . . . , M−1 is a frequency domain (FD) index, and M is a number of FD basis vectors,

wherein a function F 1 (m) permutes values {0,1,2, . . . ,M−1} of the FD index m based on a permutation order of basis vector indices k m =k 0 , k 1 , . . . k M-1 which correspond to the FD index m, where k m ∈{0, 1, . . . , N 3 −1} and N 3 is determined based on a number of subbands configured to the UE,

wherein the FD basis vector indices k m are permuted based on a function given by min(2k m , 2(N 3 −k m )−1), and

wherein a sub-component with a higher priority has a lower priority value P.

14. The method of claim 13 , wherein the one or more PMI components include the following:

{i 2,4,l :l=1, . . . , v}, where i 2,4,l indicates amplitudes of the K l NZ non-zero coefficients for layer l, where K l NZ is a number of non-zero coefficients for layer l;

{i 2,5,l :l=1, . . . , v}, where i 2,5,l indicates phases of the K l NZ non-zero coefficients for layer l; and

{i 1,7,l :l=1, . . . , v}, where i 1,7,l indicates indices (i, m) of the K l NZ non-zero coefficients for layer l, and

wherein each of i 2,4,l , i 2,5,l , and i 1,7,l comprise 2LM sub-components.

15. The method of claim 14 , wherein based on the identified priority values of each of the K NZ non-zero coefficients across v layers, where K NZ =Σ l=1 v K l NZ :

⌈

K

N

⁢

Z

2

⌉

-

v

sub-components of {i 2,4,l :l=1, . . . , v} having a higher priority are included in Group 1 and

⌊

K

N

⁢

Z

2

⌋

sub-components of {i 2,4,l :l=1, . . . , v} having a lower priority are included in Group 2, and v sub-components of {i 2,4,l :l=1, . . . , v} corresponding to strongest coefficients, one for each layer, are excluded from Group 1 and Group 2;

⌈

K

N

⁢

Z

2

⌉

-

v

sub-components of {i 2,5,l :l=1, . . . , v} having a higher priority are included in Group 1,

⌊

K

N

⁢

Z

2

⌋

sub-components of {i 2,5,l :l=1, . . . , v} having a lower priority are included in Group 2, and v sub-components of {i 2,5,l :l=1, . . . , v} corresponding to the strongest coefficients, one for each layer, are excluded from Group 1 and Group 2; and

v

*

2

⁢

L

⁢

M

v

-

⌊

K

N

⁢

Z

2

⌋

sub-components of {i 1,7,l :l=1, . . . , v} having a higher priority are included in Group 1 and

⌊

K

N

⁢

Z

2

⌋

sub-components of {i 1,7,l :l=1, . . . , v} having a lower priority are included in Group 2.

16. The method of claim 13 , wherein the Group 0 includes a PMI component indicating a strongest coefficient indicator.