Physical uplink control channel repetition in next generation wireless networks
Some of the present implementations provide a method for a user equipment (UE) for performing a physical uplink control channel (PUCCH) repetition. The method may include receiving, from a base station, a physical downlink control channel (PDCCH) comprising downlink control information (DCI) in a control resource set (CORESET). The method then determines a spatial domain filter for a PUCCH transmission based on an index associated with the CORESET. After determining the spatial domain filter, the method may transmit, to the base station, a PUCCH in a slot using the spatial domain filter, and transmit, to the base station, a repeat of the PUCCH in one of the same slot, or a different slot, using the spatial domain filter.
1. A method of a user equipment (UE) for performing a physical uplink control channel (PUCCH) repetition, the method comprising:
receiving, from a base station, via downlink control information (DCI) in a control resource set (CORESET), a PUCCH repetition indicator that indicates a number of PUCCH repetition transmissions;
determining at least two spatial domain filters for the number of PUCCH repetition transmissions;
transmitting, to the base station, a PUCCH in a first slot using a first spatial domain filter of the at least two spatial domain filters; and
transmitting, to the base station, a repeat of the PUCCH in one of the first slot or a second slot different from the first slot using a second spatial domain filter of the at least two spatial domain filters,
wherein the at least two spatial domain filters are mapped to each of the number of PUCCH repetition transmissions cyclically.
2. The method of claim 1 , wherein:
the PUCCH transmitted to the base station using the first spatial domain filter corresponds to a first transmission-reception point (TRP); and
the repeat of the PUCCH transmitted to the base station using the second spatial domain filter corresponds to a second TRP.
3. A user equipment (UE) comprising:
one or more non-transitory computer-readable media having computer-executable instructions for transmitting physical uplink control channel (PUCCH) repetition; and
at least one processor coupled to the one or more non-transitory computer-readable media, and configured to execute the computer-executable instructions to cause the UE to:
receive, from a base station, via downlink control information (DCI) in control resource set (CORESET) a PUCCH repetition indicator that indicates a number of PUCCH repetition transmissions;
determine at least two spatial domain filters for the number of PUCCH transmissions;
transmit, to the base station, a PUCCH in a first slot using a first spatial domain filter of the at least two spatial domain filters; and
transmit, to the base station, a repeat of the PUCCH in one of the first slot or a second slot different from the first slot using a second spatial domain filter of the at least two spatial domain filters,
wherein the at least two spatial domain filters are mapped to each of the number of PUCCH repetition transmissions cyclically.
4. The UE of claim 3 , wherein:
the PUCCH transmitted to the base station using the first spatial domain filter corresponds to a first transmission-reception point (TRP); and
the repeat of the PUCCH transmitted to the base station using the second spatial domain filter corresponds to a second TRP.