Base stations, user equipments, and related communication methods
A method for reporting uplink control information (UCI) by a user equipment (UE) is disclosed. The method includes storing information on whether a simultaneous physical uplink control channel (PUCCH) and physical uplink shared channel (PUSCH) transmission is supported. The method also includes, when the simultaneous PUCCH and PUSCH transmission is not supported and in case of a channel collision between a PUCCH and a PUSCH, transmitting, by the UE, the UCI using the PUCCH in an overlapping portion between the PUCCH and the PUSCH, and dropping the overlapping portion of the PUSCH.
1. A user equipment (UE) configured to report uplink control information (UCI), the UE comprising:
a processor; and
a non-transitory machine-readable memory storing instructions, executable by the processor, for:
determining whether a channel collision between a physical uplink control channel (PUCCH) and a physical uplink shared channel (PUSCH) has occurred by determining whether overlapping symbols between the PUCCH and the PUSCH within a slot exist; and
after determining that the channel collision between the PUCCH and the PUSCH within the slot has occurred,
transmitting the UCI using the PUCCH,
dropping the overlapping symbols of the PUSCH in the slot, and
transmitting the PUSCH in non-overlapping symbols in the slot;
wherein the non-transitory machine-readable memory further stores instructions for determining that a simultaneous transmission of the PUCCH and the PUSCH is not supported before determining whether the channel collision between the PUCCH and the PUSCH has occurred.
2. The UE of claim 1 , wherein the instructions for determining whether the simultaneous transmission of the PUCCH and the PUSCH is not supported comprise instructions for determining whether the simultaneous transmission of the PUCCH and the PUSCH is not supported based on at least one of subcarrier spacing and waveforms in the PUCCH and the PUSCH.
3. A base station configured to acquire uplink control information (UCI) from a user equipment (UE), the base station comprising:
a processor; and
a non-transitory machine-readable memory storing instructions, executable by the processor, for:
receiving, from the UE, the UCI via a physical uplink control channel (PUCCH) when overlapping symbols between the PUCCH and a physical uplink shared channel (PUSCH) within a slot existsand
receiving the PUSCH in non-overlapping symbols in the slot, wherein the UE drops the overlapping symbols of the PUSCH in the slot;
wherein the non-transitory machine-readable memory further stores instructions for determining that a simultaneous transmission of the PUCCH and the PUSCH is not supported before determining whether the channel collision between the PUCCH and the PUSCH has occurred.
4. The base station of claim 3 , wherein the instructions for determining whether the simultaneous transmission of the PUCCH and the PUSCH is not supported comprise instructions for determining whether the simultaneous transmission of the PUCCH and the PUSCH is not supported based on at least one of subcarrier spacing and waveforms in the PUCCH and the PUSCH.