Physical uplink control channel (PUCCH) format adaptation for 5th generation (5G) new radio (NR)
View Patent ↗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 uplink control channel (PUCCH) formats and configuration based on a signaling from a base station (gNB). The instructions are also executable to determine a control channel format and resource for uplink control information (UCI) feedback. The instructions are further executable to transmit UCI on a selected channel.
1. A user equipment (UE), comprising:
receiving circuitry configured to receive a physical downlink shared channel (PDSCH) that includes code block groups (CBGs) of a transport block; and
transmitting circuitry configured to transmit CBG based HARQ-ACK, wherein
for the CBG based HARQ-ACK corresponding to the PDSCH which is scheduled in a common search space (CSS), the transmitting circuitry is configured to report one HARQ-ACK bit for the transport block,
for the CBG based HARQ-ACK corresponding to the PDSCH which is scheduled in a UE-specific search space (USS), the transmitting circuitry is configured to report HARQ-ACK bits of all CBGs.
2. The UE of claim 1 , wherein determining circuitry configured to determine a physical uplink control channel (PUCCH) resource for transmission of the CBG based HARQ-ACK which PUCCH resource is one of a plurality PUCCH resources defined for different payload sizes.
3. A base station (gNB), comprising:
sending circuitry configured to send a physical downlink shared channel (PDSCH) that includes code block groups (CBGs) of a transport block; and
receiving circuitry configured to receive CBG based HARQ-ACK, wherein
for the CBG based HARQ-ACK corresponding to the PDSCH which is scheduled in a common search space (CSS), the receiving circuitry is configured to receive one HARQ-ACK bit for the transport block,
for the CBG based HARQ-ACK corresponding to the PDSCH which is scheduled in a UE-specific search space (USS), the receiving circuitry is configured to receive HARQ-ACK bits of all CBGs.
4. A communication method of a user equipment (UE) comprising:
receiving a physical downlink shared channel (PDSCH) that includes code block groups (CBGs) of a transport block; and
transmitting CBG based HARQ-ACK, wherein
for the CBG based HARQ-ACK corresponding to the PDSCH which is scheduled in a common search space (CSS), one HARQ-ACK bit for the transport block is transmitted,
for the CBG based HARQ-ACK corresponding to the PDSCH which is scheduled in a UE-specific search space (USS), HARQ-ACK bits of all CBGs are transmitted.
5. A communication method of a base station comprising:
sending a physical downlink shared channel (PDSCH) that includes code block groups (CBGs) of a transport block; and
receiving CBG based HARQ-ACK, wherein
for the CBG based HARQ-ACK corresponding to the PDSCH which is scheduled in a common search space (CSS), one HARQ-ACK bit for the transport block is received,
for the CBG based HARQ-ACK corresponding to the PDSCH which is scheduled in a UE-specific search space (USS), HARQ-ACK bits of all CBGs are received.