Method executed by user equipment, and user equipment

1. A method executed by a user equipment for wireless communication, the method comprising:

receiving downlink control information (DCI) for scheduling a physical downlink shared channel (PDSCH) transmission;

determining, based on a frequency domain resource assignment (FDRA) field in the received DCI, a resource indication value (RIV);

if a frequency domain resource assignment scaling condition is not satisfied, determining, based on the RIV, a first starting resource block index and a first length of continuous resource blocks;

if the frequency domain resource assignment scaling condition is satisfied, determining, based on the RIV, a second starting resource block index and a second length of continuous resource blocks, wherein the first starting resource block index is determined by multiplying the second starting resource block index by a scaling factor, and the first length of continuous resource blocks is determined by multiplying the second length of continuous resource blocks by the scaling factor; and

determining an allocated frequency resource based on the first starting resource block index and the first length of continuous resource blocks,

wherein:

the scaling factor is determined based on a ratio of a size of an active downlink bandwidth part (BWP) to a size of an initial downlink BWP,

the frequency domain resource assignment scaling condition comprises a size of a format of the DCI that is derived from a first reference size, and

the first reference size is defined based on any one of the following:

a size of a DCI format 1_0 monitored in a common search space (CSS);

a size of a DCI format 0_0 monitored in the CSS; and

a common size of the DCI format 1_0 and a common size of the DCI format 0_0 monitored in the CSS.

2. The method according to claim 1 , wherein the first reference size is further defined based on any one of the following:

a size of a control resource set (CORESET) 0, which is a CORESET with an identity (ID) 0;

if the CORESET 0 in a cell is configured, the first reference size is equal to the size of the CORESET 0; and

if the CORESET 0 is not configured in the cell, the first reference size is equal to the size of the initial downlink BWP.

3. The method according to claim 1 , wherein the frequency domain resource assignment scaling condition further comprises:

a size of a format of the DCI that is applied to a reference BWP that satisfies a reference BWP condition, wherein the reference BWP is any of the following:

the active downlink BWP;

the initial downlink BWP;

a BWP indicated in the format of the DCI;

a pre-defined BWP or a pre-configured BWP; and

a BWP configured by a parameter obtained from a base station, or when the parameter is not configured, a default BWP.

4. A method executed by a user equipment for wireless communication, the method comprising:

receiving downlink control information (DCI) for scheduling a physical uplink shared channel (PUSCH) transmission;

determining, based on a frequency domain resource assignment (FDRA) field in the received DCI, a resource indication value (RIV);

if a frequency domain resource assignment scaling condition is not satisfied, determining, based on the RIV, a first starting resource block index and a first length of continuous resource blocks;

if the frequency domain resource assignment scaling condition is satisfied, determining, based on the RIV, a second starting resource block index and a second length of continuous resource blocks, wherein the first starting resource block index is determined by multiplying the second starting resource block index by a scaling factor, and the first length of continuous resource blocks is determined by multiplying the second length of continuous resource blocks by the scaling factor; and

determining an allocated frequency resource based on the first starting resource block index and the first length of continuous resource blocks,

wherein:

the scaling factor is determined based on a ratio of a size of an active uplink bandwidth part (BWP) to a size of an initial uplink BWP,

the frequency domain resource assignment scaling condition comprises a size of a format of the DCI that is derived from a third reference size, and

the third reference size is defined based on any one of the following:

a size of a DCI format 1_0 monitored in a common search space (CSS):

a size of a DCI format 0_0 monitored in the CSS; and

a common size of the DCI format 1_0 and a common size of the DCI format 0_0 monitored in the CSS.

5. The method according to claim 4 , wherein the frequency domain resource assignment scaling condition further comprises:

a size of a format of the DCI that is applied to a reference BWP that satisfies a reference BWP condition, wherein the reference BWP is any of the following:

the active uplink BWP;

the initial uplink BWP;

a BWP indicated in the format of the DCI;

a pre-defined BWP or a pre-configured BWP; and

a BWP configured by a parameter obtained from a base station, or when the parameter is not configured, a default BWP.

6. A user equipment, comprising:

at least one processor; and

at least one memory storing one or more instructions that, when executed by the at least one processor, cause the user equipment to:

receive downlink control information (DCI) for scheduling a physical downlink shared channel (PDSCH) transmission;

determine, based on a frequency domain resource assignment (FDRA) field in the received DCI, a resource indication value (RIV);

if a frequency domain resource assignment scaling condition is not satisfied, determine, based on the RIV, a first starting resource block index and a first length of continuous resource blocks;

if the frequency domain resource assignment scaling condition is satisfied, determine, based on the RIV, a second starting resource block index and a second length of continuous resource blocks, wherein the first starting resource block index is determined by multiplying the second starting resource block index by a scaling factor, and the first length of continuous resource blocks is determined by multiplying the second length of continuous resource blocks by the scaling factor; and

determine an allocated frequency resource based on the first starting resource block index and the first length of continuous resource blocks,

wherein:

the scaling factor is determined based on a ratio of a size of an active downlink bandwidth part (BWP) to a size of an initial downlink BWP,

the frequency domain resource assignment scaling condition comprises a size of a format of the DCI that is derived from a first reference size, and

the first reference size is defined based on any one of the following:

a size of a DCI format 1_0 monitored in a common search space (CSS);

a size of a DCI format 0_0 monitored in the CSS; and

a common size of the DCI format 1_0 and a common size of the DCI format 0_0 monitored in the CSS.

7. The user equipment according to claim 6 , wherein the first reference size is further defined based on any one of the following:

a size of a control resource set (CORESET) 0, which is a CORESET with an identity (ID) 0;

if the CORESET 0 in a cell is configured, the first reference size is equal to the size of the CORESET 0; and

if the CORESET 0 is not configured in the cell, the first reference size is equal to the size of the initial downlink BWP.

8. The user equipment according to claim 6 , wherein the frequency domain resource assignment scaling condition further comprises:

a size of a format of the DCI that is applied to a reference BWP that satisfies a reference BWP condition, wherein the reference BWP is any of the following:

the active downlink BWP;

the initial downlink BWP;

a BWP indicated in the format of the DCI;

a pre-defined BWP or a pre-configured BWP; and

a BWP configured by a parameter obtained from a base station, or when the parameter is not configured, a default BWP.

9. The method according to claim 3 , wherein the reference BWP condition comprises a size of the reference BWP satisfying a second reference size, and the second reference size being defined based on any one of the following:

the size of the DCI format 1_0 monitored in the CSS;

the size of the DCI format 0_0 monitored in the CSS; and

the common size of the DCI format 1_0 and the common size of the DCI format 0_0 monitored in the CSS.

10. The method according to claim 5 , wherein the reference BWP condition comprises a size of the reference BWP satisfying a fourth reference size, and the fourth reference size being defined based on any one of the following:

the size of the DCI format 1_0 monitored in the CSS;

the size of the DCI format 0_0 monitored in the CSS; and

the common size of the DCI format 1_0 and the common size of the DCI format 0_0 monitored in the CSS.

11. The user equipment according to claim 8 , wherein the reference BWP condition comprises a size of the reference BWP satisfying a second reference size, and the second reference size being defined based on any one of the following:

the size of the DCI format 1_0 monitored in the CSS;

the size of the DCI format 0_0 monitored in the CSS; and

the common size of the DCI format 1_0 and the common size of the DCI format 0_0 monitored in the CSS.