Long physical uplink control channel (PUCCH) design for 5th generation (5G) new radio (NR)

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:

acquire a first higher layer configuration indicating at least a physical uplink control channel (PUCCH) resource configuration corresponding to a long PUCCH format among a plurality of possible PUCCH formats consisting of short and long PUCCH formats, wherein short is defined as one or two symbols, and wherein long is defined as four or more symbols and configurable in length;

acquire a second higher layer configuration indicating multiple sets of PUCCH resource configurations;

select a set of PUCCH resource configurations from the acquired sets of PUCCH resource configurations based on a payload size of uplink control information (UCI); and

transmit the UCI on a PUCCH resource, the PUCCH resource comprising a first PUCCH resource corresponding to a first PUCCH resource configuration within the selected set of PUCCH resource configurations,

wherein when (i) the first PUCCH resource corresponds to a first long PUCCH format and spans over multiple slots and (ii) an inter-slot frequency hopping is configured for the long PUCCH format,

then (a) the inter-slot frequency hopping is applied per slot for the transmission of the first PUCCH resource, and (b) the first long PUCCH format spans multiple symbols and is transmitted in each slot of the multiple slots.

2. The UE of claim 1 , wherein the first higher layer configuration comprises at least a number of symbols, a number of resource blocks (RBs), and whether frequency hopping is applied.

3. The UE of claim 1 , wherein the multiple TTIs are contiguous TTIs.

4. The UE of claim 3 , wherein symbols occupied by the first long PUCCH format in a TTI of the multiple TTIs are contiguous in time, and symbols occupied by the first long PUCCH format in two neighboring TTIs of the multiple TTIs are not contiguous in time.

5. A method for a user equipment (UE), the method comprising:

acquiring a first higher layer configuration indicating at least a physical uplink control channel (PUCCH) resource configuration corresponding to a long PUCCH format among a plurality of possible PUCCH formats consisting of short and long PUCCH formats, wherein long is defined as four or more symbols and configurable in length, and wherein short is defined as one or two symbols;

acquiring a second higher layer configuration indicating multiple sets of PUCCH resource configurations;

selecting a set of PUCCH resource configurations from the acquired sets of PUCCH resource configurations based on a payload size of uplink control information (UCI); and

transmitting the UCI on a PUCCH resource, the PUCCH resource comprising a first PUCCH resource corresponding to a first PUCCH resource configuration within the selected set of PUCCH resource configurations,

wherein when (i) the first PUCCH resource corresponds to a first long PUCCH format and spans over multiple slots and (ii) an inter-slot frequency hopping is configured for the first long PUCCH format,

then (a) the inter-slot frequency hopping is applied per slot for the transmission of the first PUCCH resource, and (b) the first long PUCCH format spans multiple symbols and is transmitted in each slot of the multiple slots.

6. The method of claim 5 , wherein the multiple TTIs are contiguous TTIs.

7. The method of claim 6 , wherein symbols occupied by the first long PUCCH format in a TTI of the multiple TTIs are contiguous in time, and symbols occupied by the first long PUCCH format in two neighboring TTIs of the multiple TTIs are not contiguous in time.

8. A base station, comprising:

a processor; and

memory in electronic communication with the processor, wherein instructions stored in the memory are executable to:

send a first higher layer configuration indicating at least a physical uplink control channel (PUCCH) resource configuration corresponding to a long PUCCH format among a plurality of possible PUCCH formats consisting of short and long PUCCH formats, wherein short is defined as one or two symbols, wherein long is defined as four or more symbols and configurable in length;

send a second higher layer configuration indicating multiple sets of PUCCH resource configurations;

and

receive uplink control information (UCI) on a PUCCH resource, the PUCCH resource comprising a first PUCCH resource corresponding to a first PUCCH resource configuration within a set of PUCCH resource configurations selected from the sets of PUCCH resource configurations based on a payload size of the UCI,

wherein when (i) the first PUCCH resource corresponds to a first long PUCCH format and spans over multiple transmission time intervals (TTIs) and (ii) an inter-TTI frequency hopping is configured for the first long PUCCH format,

then (a) the inter-TTI frequency hopping is applied at every TTI boundary for the transmission of the first PUCCH resource, and (b) the first long PUCCH format is transmitted in each TTI of the multiple TTIs.

9. The base station of claim 8 , wherein the multiple TTIs are contiguous TTIs.

10. The base station of claim 9 , wherein symbols occupied by the first long PUCCH format in a TTI of the multiple TTIs are contiguous in time, and symbols occupied by the first long PUCCH format in two neighboring TTIs of the multiple TTIs are not contiguous in time.