PUCCH collision handling for multi-slot long PUCCH in 5G NR
A user equipment (UE) is described. The UE includes receiving circuitry configured to receive a first parameter. The receiving circuitry is also configured to receive a second parameter. The UE also includes transmitting circuitry configured to perform, based on the first parameter, the first PUCCH repetitions in first multiple slots. The transmitting circuitry is also configured to perform, based on the second parameter, the second PUCCH receptions in second multiple slot. For a case that the first PUCCH repetitions collide with the second PUCCH receptions, a priority for different types of uplink control information (UCI) is applied. Hybrid automatic repeat request-acknowledgment (HARQ-ACK) has a higher priority than a scheduling request (SR) and channel state information (CSI). The SR has a higher priority than the CSI.
1. A user equipment (UE) comprising:
a processor configured to determine that a first physical uplink control channel (PUCCH) carrying first uplink control information (UCI) and a second PUCCH carrying second UCI overlap in a slot, the processor being configured to determine, based on a first priority for the first PUCCH and a second priority for the second PUCCH, one of the first PUCCH and the second PUCCH, a priority for the one of the first PUCCH and the second PUCCH being higher than that for the other one of the first PUCCH and the second PUCCH; and
a UL transmitter configured to transmit, in the slot, the one of the first PUCCH and the second PUCCH, without transmitting, in the slot, the other one of the first PUCCH and the second PUCCH, wherein
the first priority for the first PUCCH is based on a type of the first UCI, and the second priority for the second PUCCH is based on a type of the second UCI,
in a case that the type of the first UCI is Channel State Information (CSI) with higher priority and the type of the second UCI is CSI with lower priority, the one of the first PUCCH and the second PUCCH is the first PUCCH and the other one of the first PUCCH and the second PUCCH is the second PUCCH, and
the processor is configured to determine, on the basis of a priority rule in which semi-persistent CSI is defined to have a priority higher than periodic CSI, that the semi-persistent CSI and the periodic CSI are the CSI with higher priority and the CSI with lower priority, respectively.
2. The UE of claim 1 , wherein
the first PUCCH is a PUCCH with multi-slot transmission, and
the second PUCCH is another PUCCH with multi-slot transmission.
3. The UE of claim 1 , wherein
in a case that the type of the first UCI is Channel State Information (CSI) with higher priority and the type of the second UCI is CSI with lower priority, the one of the first PUCCH and the second PUCCH is determined to be the first PUCCH regardless of a duration of the first PUCCH in the slot and a duration of the second PUCCH in the slot.
4. A base station apparatus comprising:
a processor configured to determine that a first physical uplink control channel (PUCCH) carrying first uplink control information (UCI) and a second PUCCH carrying second UCI overlap in a slot, the processor being configured to determine, based on a first priority for the first PUCCH and a second priority for the second PUCCH, one of the first PUCCH and the second PUCCH, a priority for the one of the first PUCCH and the second PUCCH being higher than that for the other one of the first PUCCH and the second PUCCH; and
a UL receiver configured to receive, in the slot, the one of the first PUCCH and the second PUCCH, without receiving, in the slot, the other one of the first PUCCH and the second PUCCH, wherein
the first priority for the first PUCCH is based on a type of the first UCI, and the second priority for the second PUCCH is based on a type of the second UCI,
in a case that the type of the first UCI is Channel State Information (CSI) with higher priority and the type of the second UCI is CSI with lower priority, the one of the first PUCCH and the second PUCCH is the first PUCCH and the other one of the first PUCCH and the second PUCCH is the second PUCCH, wherein
the first PUCCH is received whereas the second PUCCH is not received on the basis of (a) a priority rule in which semi-persistent CSI is defined to have a priority higher than periodic CSI and (b) a determination by a user equipment that the semi-persistent CSI and the periodic CSI are the CSI with higher priority and the CSI with lower priority, respectively.
5. The base station apparatus of claim 4 , wherein
the first PUCCH is a PUCCH with multi-slot transmission, and
the second PUCCH is another PUCCH with multi-slot transmission.
6. The base station apparatus of claim 4 , wherein
in a case that the type of the first UCI is Channel State Information (CSI) with higher priority and the type of the second UCI is CSI with lower priority, the one of the first PUCCH and the second PUCCH is determined to be the first PUCCH regardless of a duration of the first PUCCH in the slot and a duration of the second PUCCH in the slot.
7. A communication method of a user equipment comprising:
determining that a first physical uplink control channel (PUCCH) carrying first uplink control information (UCI) and a second PUCCH carrying second UCI overlap in a slot;
determining, based on a first priority for the first PUCCH and a second priority for the second PUCCH, one of the first PUCCH and the second PUCCH, a priority for the one of the first PUCCH and the second PUCCH being higher than that for the other one of the first PUCCH and the second PUCCH;
transmitting, in the slot, the one of the first PUCCH and the second PUCCH, without transmitting, in the slot, the other one of the first PUCCH and the second PUCCH, wherein
the first priority for the first PUCCH is based on a type of the first UCI, and the second priority for the second PUCCH is based on a type of the second UCI, and
in a case that the type of the first UCI is Channel State Information (CSI) with higher priority and the type of the second UCI is CSI with lower priority, the one of the first PUCCH and the second PUCCH is the first PUCCH and the other one of the first PUCCH and the second PUCCH is the second PUCCH;
determining, on the basis of a priority rule in which semi-persistent CSI is defined to have a priority higher than periodic CSI, that the semi-persistent CSI and the periodic CSI are the CSI with higher priority and the CSI with lower priority, respectively.
8. A communication method of a base station apparatus comprising:
determining that a first physical uplink control channel (PUCCH) carrying first uplink control information (UCI) and a second PUCCH carrying second UCI overlap in a slot;
determining, based on a first priority for the first PUCCH and a second priority for the second PUCCH, one of the first PUCCH and the second PUCCH, a priority for the one of the first PUCCH and the second PUCCH being higher than that for the other one of the first PUCCH and the second PUCCH; and
receiving, in the slot, the one of the first PUCCH and the second PUCCH, without receiving, in the slot, the other one of the first PUCCH and the second PUCCH, wherein
the first priority for the first PUCCH is based on a type of the first UCI, and the second priority for the second PUCCH is based on a type of the second UCI,
in a case that the type of the first UCI is Channel State Information (CSI) with higher priority and the type of the second UCI is CSI with lower priority, the one of the first PUCCH and the second PUCCH is the first PUCCH and the other one of the first PUCCH and the second PUCCH is the second PUCCH, wherein
the first PUCCH is received whereas the second PUCCH is not received on the basis of (a) a priority rule in which semi-persistent CSI is defined to have a priority higher than periodic CSI and (b) a determination by a user equipment that the semi-persistent CSI and the periodic CSI are the CSI with higher priority and the CSI with lower priority, respectively.