System and method for PUCCH transmission scheme

An apparatus of a base station configured for communication of sounding reference signal (SRS) resources, the apparatus comprising:

• one or more processors configured to:
• identify one or more antenna ports (APs) for transmission of a physical uplink control channel (PUCCH) by a user equipment (UE);
• generate an antenna port index (API) based on the identified APs;
• encode the API for transmission to the UE;
• transmit, to the UE, higher layer signaling instructing the UE to define an SRS to transmit from the UE with the PUCCH in one or more SRS groups comprising:
• a first SRS group for SRS resources used for beam management;
• and
• a second SRS group for SRS resources used for PUCCH transmission;
• encode a radio resource control (RRC) signal with a spatial received parameter indicating the SRS to transmit from the UE with the PUCCH, wherein the PUCCH and the SRS are quasi co located (QCLed) at the UE based on the spatial received parameter, the spatial received parameter sharing a same spatial domain filter as the SRS;
• decode the SRS received from the UE, using the spatial received parameter;
• receive uplink control information (UCI) received from the UE in the PUCCH on the one or more antenna ports;
• and
• decode the UCI using the spatial received parameter;
• and
• a memory interface configured to send to a memory the spatial received parameter.

At least one non-transitory machine readable storage medium having instructions embodied thereon for a user equipment (UE) configured for communication of sounding reference signal (SRS) resources, the instructions thereon when executed by one or more processors at the UE perform the following:

• decode a radio resource control (RRC) signal indicating an SRS to transmit with a physical uplink control channel (PUCCH), wherein the PUCCH and the SRS are quasi co located (QCLed) based on a spatial received parameter sharing a same spatial domain filter as the SRS;
• define the SRS in one or more SRS groups comprising:
• a first SRS group for SRS resources used for beam management;
• and
• a second SRS group for SRS resources used for PUCCH transmission;
• encode the SRS for transmission using the spatial received parameter;
• receive an antenna port index (API) from a base station;
• identify one or more antenna ports (APs) based on the API;
• encode uplink control information (UCI) for transmission in the PUCCH using the spatial received parameter;
• and
• transmit the UCI in the PUCCH on the one or more antenna ports using the spatial received parameter;
• wherein a memory interface is configured to send to a memory the UCI.