Resource allocation method, device and system of wireless communication system
Disclosed are a UE of a wireless communication system and a wireless communication method using the same. More particularly, the method including receiving scheduling information including resource allocation information, wherein the resource allocation information comprises a RIV determined based on the number of RBs of a first BWP, and transmitting or receiving data on a RB set corresponding to the RIV in a second BWP, wherein the number of RBs of the second BWP is greater than the number of RBs of the first BWP, the starting RB index S and the number of RBs of the RB set corresponding to the RIV in the second BWP are given in powers of 2 and a device for the same are disclosed.
1 . A user equipment (UE) configured to operate in a 3 rd generation partnership project ( 3 GPP)-based wireless communication system using a plurality of Bandwidth Parts (BWPs) in a cell, the UE comprising:
a processor; and
a communication module,
wherein the processor is configured to:
receive downlink control information (DCI) including a frequency domain resource allocation (FDRA) field, wherein a size of the DCI is derived from a first BWP with a size N BWP1 , and the FDRA field includes a resource indication value (RIV); and
receive a physical downlink shared channel (PDSCH) corresponding to the DCI, on contiguous resource blocks (RBs) in a second BWP with a size N BWP2 ,
wherein, when N BWP2 >N BWP1 , the RIV corresponds to a starting RB index S and a length L of the contiguous RBs, where granularities of S and L are defined in units of RB sets in the second BWP, and a number M of RB sets is determined based on N BWP1 .
2 . The UE of claim 1 , wherein an RB set of the M RB sets includes a plurality of RBs in the second BWP.
3 . The UE of claim 1 , wherein Mis the same as N BWP1 .
4 . The UE of claim 1 , wherein a size of the FDRA field is derived from the first BWP with the size N BWP1 .
5 . The UE of claim 1 , wherein the processor is configured to transmit a physical uplink control channel (PUCCH) including hybrid automatic repeat and request acknowledgement (HARQ-ACK) information for the PDSCH.
6 . A base station (BS) configured to operate in a 3 rd generation partnership project (3GPP)-based wireless communication system using a plurality of Bandwidth Parts (BWPs) in a cell, the BS comprising:
a processor; and
a communication module,
wherein the processor is configured to:
transmit downlink control information (DCI) including a frequency domain resource allocation (FDRA) field, wherein a size of the DCI is derived from a first BWP with a size N BWP1 , and the FDRA field includes a resource indication value (RIV); and
transmit a physical downlink shared channel (PDSCH) corresponding to the DCI, on contiguous resource blocks (RBs) in a second BWP with a size N BWP2 ,
wherein, when N BWP2 >N BWP1 , the RIV corresponds to a starting RB index S and a length L of the contiguous RBs, where granularities of S and L are defined in units of RB sets in the second BWP, and a number M of RB sets is determined based on N BWP1 .
7 . The BS of claim 6 , wherein an RB set of the M RB sets includes a plurality of RBs in the second BWP.
8 . The BS of claim 6 , wherein M is the same as N BWP1 .
9 . The BS of claim 6 , wherein a size of the FDRA field is derived from the first BWP with the size N BWP1 .
10 . The BS of claim 6 , wherein the processor is configured to receive a physical uplink control channel (PUCCH) including hybrid automatic repeat and request acknowledgement (HARQ-ACK) information for the PDSCH.
11 . A method performed by a user equipment, UE, configured to operate in a 3 rd generation partnership project (3GPP)-based wireless communication system using a plurality of Bandwidth Parts (BWPs) in a cell, the method comprising:
receiving downlink control information (DCI) including a frequency domain resource allocation (FDRA) field, wherein a size of the DCI is derived from a first BWP with a size N BWP1 , and the FDRA field includes a resource indication value (RIV); and
receiving a physical downlink shared channel (PDSCH) corresponding to the DCI, on contiguous resource blocks (RBs) in a second BWP with a size N BWP2 ,
wherein, when N BWP2 >N BWP1 , the RIV corresponds to a starting RB index S and a length L of the contiguous RBs, where granularities of S and L are defined in units of RB sets in the second BWP, and a number M of RB sets is determined based on N BWP1 .
12 . The method of claim 11 , wherein an RB set of the M RB sets includes a plurality of RBs in the second BWP.
13 . The method of claim 11 , wherein M is the same as N BWP1 .
14 . The method of claim 11 , wherein a size of the FDRA field is derived from the first BWP with the size N BWP1 .
15 . The method of claim 11 , further comprising:
transmitting a physical uplink control channel (PUCCH) including hybrid automatic repeat and request acknowledgement (HARQ-ACK) information for the PDSCH.
16 . A method performed by a base station (BS) configured to operate in a 3 rd generation partnership project (3GPP)-based wireless communication system using a plurality of Bandwidth Parts (BWPs) in a cell, the method comprising:
transmitting downlink control information (DCI) including a frequency domain resource allocation (FDRA) field, wherein a size of the DCI is derived from a first BWP with a size N BWP1 , and the FDRA field includes a resource indication value (RIV); and
transmitting a physical downlink shared channel (PDSCH) corresponding to the DCI, on contiguous resource blocks (RBs) in a second BWP with a size N BWP2 ,
wherein, when N BWP2 >N BWP1 , the RIV corresponds to a starting RB index S and a length L of the contiguous RBs, where granularities of S and L are defined in units of RB sets in the second BWP, and a number M of RB sets is determined based on N BWP1 .
17 . The method of claim 16 , wherein an RB set of the M RB sets includes a plurality of RBs in the second BWP.
18 . The method of claim 16 , wherein M is the same as N BWP1 .
19 . The method of claim 16 , wherein a size of the FDRA field is derived from the first BWP with the size N BWP1 .
20 . The method of claim 16 , further comprising:
receiving a physical uplink control channel (PUCCH) including hybrid automatic repeat and request acknowledgement (HARQ-ACK) information for the PDSCH.