Method and apparatus for transmitting and receiving data channel
A method of transmitting and receiving a data channel by a user equipment (UE) in a wireless communication system is disclosed. The method includes receiving downlink control information (DCI) including information related to a resource region for a physical downlink shared channel (PDSCH) or a physical uplink shared channel (PUSCH), acquiring a resource indication value (RIV) from the DCI, acquiring a first length of allocated resource blocks based on the RIV, scaling the first length of allocated resource blocks to a second length of allocated resource blocks, based on a scaling factor and receiving the PDSCH or transmitting the PUSCH based on the second length of allocated resource blocks, wherein the scaling factor may be 2 n , and n may be non-negative integer.
1. A method performed by a user equipment (UE) configured to operate in a wireless communication system, the method comprising:
receiving downlink control information (DCI) related to scheduling a physical uplink shared channel (PUSCH); and
transmitting the PUSCH in an active bandwidth part (BWP) based on a first allocated resource block length,
wherein the DCI comprises a resource indication value (RIV) related to a second allocated resource block length,
wherein the first allocated resource block length is obtained based on scaling the second allocated resource block length by a scaling factor,
wherein the scaling factor is determined as a maximum value among a value satisfying 2 n and less than a first value,
wherein the first value is obtained by applying a floor function to a second value identical to dividing a size of the active BWP to a size of an initial BWP, and
wherein n is a non-negative integer number.
2. The method of claim 1 , wherein the transmitting of the PUSCH is performed further based on a first starting resource block,
wherein the RIV is further related to information regarding a second starting resource block, and
wherein the first starting resource block is obtained based on scaling the second starting resource block by the scaling factor.
3. The method of claim 2 , wherein, in a frequency domain, a starting resource block of a frequency resource on which the transmitting of the PUSCH is performed is identified based on the first starting resource block, and
wherein, in the frequency domain, a length of the frequency resource is identified based on the first allocated resource block length.
4. An apparatus configured to operate in a wireless communication system, the apparatus comprising:
a memory; and
at least one processor coupled with the memory,
wherein the at least one processor is configured to:
receive downlink control information (DCI) related to scheduling a physical uplink shared channel (PUSCH); and
transmit the PUSCH in an active bandwidth part (BWP) based on a first allocated resource block length,
wherein the DCI comprises a resource indication value (RIV) related to a second allocated resource block length,
wherein the first allocated resource block length is obtained based on scaling the second allocated resource block length by a scaling factor,
wherein the scaling factor is determined as a maximum value among a value satisfying 2 n and less than a first value,
wherein the first value is obtained by applying a floor function to a second value identical to dividing a size of the active BWP to a size of an initial BWP, and
wherein n is a non-negative integer number.
5. The apparatus of claim 4 , wherein the transmitting of the PUSCH is performed further based on a first starting resource block,
wherein the RIV is further related to information regarding a second starting resource block, and
wherein the first starting resource block is obtained based on scaling the second starting resource block by the scaling factor.
6. The apparatus of claim 5 , wherein, in a frequency domain, a starting resource block of a frequency resource on which the transmitting of the PUSCH is performed is identified based on the first starting resource block, and
wherein, in the frequency domain, a length of the frequency resource is identified based on the first allocated resource block length.
7. A method performed by a base station (BS) configured to operate in a wireless communication system, the method comprising:
transmitting downlink control information (DCI) related to scheduling a physical uplink shared channel (PUSCH); and
receiving the PUSCH in an active bandwidth part (BWP) based on a first allocated resource block length,
wherein the DCI comprises a resource indication value (RIV) related to a second allocated resource block length,
wherein the first allocated resource block length is obtained based on scaling the second allocated resource block length by a scaling factor,
wherein the scaling factor is determined as a maximum value among a value satisfying 2 n and less than a first value,
wherein the first value is obtained by applying a floor function to a second value identical to dividing a size of the active BWP to a size of an initial BWP, and
wherein n is a non-negative integer number.
8. An apparatus configured to operate in a wireless communication system, the apparatus comprising:
a memory; and
at least one processor coupled with the memory,
wherein the at least one processor is configured to:
transmit downlink control information (DCI) related to scheduling a physical uplink shared channel (PUSCH); and
receive the PUSCH in an active bandwidth part (BWP) based on a first allocated resource block length,
wherein the DCI comprises a resource indication value (RIV) related to a second allocated resource block length,
wherein the first allocated resource block length is obtained based on scaling the second allocated resource block length by a scaling factor,
wherein the scaling factor is determined as a maximum value among a value satisfying 2 n and less than a first value,
wherein the first value is obtained by applying a floor function to a second value identical to dividing a size of the active BWP to a size of an initial BWP, and
wherein n is a non-negative integer number.