Slot structure of long physical uplink control channel (PUCCH) design for 5th generation (5G) new radio (NR)
A user equipment (UE) is described. The UE includes a processor and memory in electronic communication with the processor. Instructions stored in the memory are executable to determine the uplink control channel (PUCCH) format and configuration based on a signaling from a base station (gNB). The instructions are also executable to determine the demodulation reference signal (DMRS) locations in the configured PUCCH. The instructions are further executable to determine the uplink control information (UCI) multiplexing methods on the configured PUCCH. The instructions are additionally executable to determine the resource of the control channel for UCI feedback. The instructions are also executable to transmit UCI feedback on the selected control channel.
1. A user equipment (UE), comprising:
a processor; and
memory in electronic communication with the processor, wherein instructions stored in the memory are executable to:
transmit uplink control information (UCI) using a physical uplink control channel (PUCCH) format that supports more than 2 bits of UCI payload, wherein
a position(s) in time domain of a demodulation reference signal (DMRS) for the PUCCH format is determined based on a length of a PUCCH for the PUCCH format, a starting OFDM symbol of the PUCCH for the PUCCH format, and a frequency hopping configuration for the PUCCH format,
the PUCCH with only 1 DMRS does not support a frequency hopping and the PUCCH with 2 or more DMRSs supports a configurable frequency hopping,
in a case where the length of the PUCCH is 4 to 14 symbols, the PUCCH with 4 DMRSs supports the frequency hopping between the position of the second DMRS and the position of the third DMRS.
2. A base station (gNB), comprising:
a processor; and
memory in electronic communication with the processor, wherein instructions stored in the memory are executable to:
receive uplink control information (UCI) using a physical uplink control channel (PUCCH) format that supports more than 2 bits of UCI payload, wherein
a position(s) in time domain of a demodulation reference signal (DMRS) for the PUCCH format is determined based on a length of a PUCCH for the PUCCH format, a starting OFDM symbol of the PUCCH for the PUCCH format, and a frequency hopping configuration for the PUCCH format,
the PUCCH with only 1 DMRS does not support a frequency hopping and the PUCCH with 2 or more DMRSs supports a configurable frequency hopping,
in a case where the length of the PUCCH is 4 to 14 symbols, the PUCCH with 4 DMRSs supports the frequency hopping between the position of the second DMRS and the position of the third DMRS.
3. A method by a user equipment (UE), the method comprising:
transmitting uplink control information (UCI) using a physical uplink control channel (PUCCH) format that supports more than 2 bits of UCI payload, wherein
a position(s) in time domain of a demodulation reference signal (DMRS) for the PUCCH format is determined based on a length of a PUCCH for the PUCCH format, a starting OFDM symbol of the PUCCH for the PUCCH format, and a frequency hopping configuration for the PUCCH format,
the PUCCH with only 1 DMRS does not support a frequency hopping and the PUCCH with 2 or more DMRSs supports a configurable frequency hopping,
in a case where the length of the PUCCH is 4 to 14 symbols, the PUCCH with 4 DMRSs supports the frequency hopping between the position of the second DMRS and the position of the third DMRS.
4. A method by a base station apparatus, the method comprising:
receiving uplink control information (UCI) using a physical uplink control channel (PUCCH) format that supports more than 2 bits of UCI payload, wherein
a position(s) in time domain of a demodulation reference signal (DMRS) for the PUCCH format is determined based on a length of a PUCCH for the PUCCH format, a starting OFDM symbol of the PUCCH for the PUCCH format, and a frequency hopping configuration for the PUCCH format,
the PUCCH with only 1 DMRS does not support a frequency hopping and the PUCCH with 2 or more DMRSs supports a configurable frequency hopping,
in a case where the length of the PUCCH is 4 to 14 symbols, the PUCCH with 4 DMRSs supports the frequency hopping between the position of the second DMRS and the position of the third DMRS.