User equipment, base station, and communication method
A communication method by a user equipment (UE) is described. The method includes receiving, from a base station, system information including a first RRC parameter, wherein the first RRC parameter provides a cell-specific physical uplink control channel (PUCCH) resource set and the cell-specific PUCCH resource set includes one or more PUCCH resources; and receiving a PDCCH with a DCI format scheduling a PDSCH; and performing, on a PUCCH resource of the cell-specific PUCCH resource set in an initial UL BWP, a PUCCH transmission with HARQ-ACK information in response to the PDSCH received, wherein whether a PRB index of the PUCCH transmission is determined based on a size of the initial UL BWP or not based on a size of the initial UL BWP is determined based on a second RRC parameter.
1 . A user equipment (UE), comprising:
reception circuitry configured to receive, from a base station, system information including a first RRC parameter and a second RRC parameter, wherein the first RRC parameter provides one or more PUCCH resources in an initial UL BWP, and to receive a PDCCH with a DCI format scheduling a PDSCH; and
transmission circuitry configured to transmit, on a PUCCH resource of the one or more PUCCH resources, a PUCCH with HARQ-ACK information in response to the PDSCH received, wherein whether a PRB index of the PUCCH resource is determined by using a size of the initial UL BWP or by not using the size of the initial UL BWP is determined based on the second RRC parameter.
2 . The UE of the claim 1 : wherein
in a case that the second RRC parameter is set to a first value, the PRB index is determined by using a first formula wherein the first formula does not use the size of the initial UL BWP as one of terms of the first formula,
in a case that the second RRC parameter is set to a second value, the PRB index is determined by using a second formula wherein the second formula uses the size of the initial UL BWP as one of terms of the second formula.
3 . The UE of the claim 2 : wherein
the UE performs the PUCCH transmission without frequency hopping.
4 . A base station, comprising:
transmission circuitry configured to transmit, to a user equipment (UE), system information including a first RRC parameter and a second RRC parameter, wherein the first RRC parameter provides one or more PUCCH resources in an initial UL BWP, and to transmit a PDCCH with a DCI format scheduling a PDSCH; and
reception circuitry configured to receive, on a PUCCH resource of the one or more PUCCH resources, a PUCCH with HARQ-ACK information in response to the PDSCH received, wherein whether a PRB index of the PUCCH resource is determined by using a size of the initial UL BWP or by not using the size of the initial UL BWP is determined based on the second RRC parameter.
5 . The base station of the claim 4 : wherein
in a case that the second RRC parameter is set to a first value, the PRB index is determined by using a first formula wherein the first formula does not use the size of the initial UL BWP as one of terms of the first formula,
in a case that the second RRC parameter is set to a second value, the PRB index is determined by using a second formula wherein the second formula uses the size of the initial UL BWP as one of terms of the second formula.
6 . The base station of the claim 4 : wherein
the base station receives the PUCCH transmission without frequency hopping.
7 . A communication method performed by a user equipment (UE), comprising:
receiving, from a base station, system information including a first RRC parameter and a second RRC parameter, wherein the first RRC parameter provides one or more PUCCH resources in an initial UL BWP; and
receiving a PDCCH with a DCI format scheduling a PDSCH; and
transmitting, on a PUCCH resource of the one or more PUCCH resources, a PUCCH with HARQ-ACK information in response to the PDSCH received, wherein whether a PRB index of the PUCCH resource is determined by using a size of the initial UL BWP or by not using the size of the initial UL BWP is determined based on the second RRC parameter.