UE determination of mics index based on PUSCH scheduling in 5G NR

A non-transitory computer-readable storage medium that stores instructions for execution by processing circuitry of a user equipment (UE) configured for operation in a fifth-generation new radio (5G NR) system, the processing circuitry to:

• request repetition of a physical uplink shared channel (PUSCH) scheduled by a random access response (RAR) uplink (UL) grant;
• decode a downlink control information (DCI) format 0_0 with Cyclic Redundancy Check (CRC) scrambled by a Temporary Cell-Radio Network Temporary Identifier (TC-RNTI), the DCI format 0_0 including a 5-bit modulation coding scheme (MCS) information field;
• wherein for a PUSCH scheduled by the DCI format 0_0:
• determine a number of PUSCH repetitions based on two most significant bits (MSBs) of the 5-bit MCS information field;
• and
• determine a modulation order and target code rate for transmitting the PUSCH using three least significant bits (LSBs) of the 5-bit MCS information field, wherein the three LSBs of the MCS information field provide a codepoint for use in determining an MCS index based on whether or not a higher layer parameter mcs-Msg3-Repetions is configured;
• and
• transmit the PUSCH in accordance with the determined modulation order and target code rate and the number of repetitions,
• wherein for a PUSCH scheduled by the RAR UL grant, the processing circuitry is to determine the modulation order and target code rate using two LSBs of the MCS information field based on whether or not the higher layer parameter mcs-Msg3-Repetions is configured,
• wherein when the UE is configured for physical uplink control channel (PUCCH) repetition with demodulation reference signal (DMRS) bundling, the processing circuitry is to:
• cancel a PUCCH transmission of the PUCCH repetition overlapping with a PUSCH transmission when the PUCCH transmission has a lower priority than the PUSCH transmission, and
• wherein when the UE is configured for the PUCCH repetition with DMRS bundling, the processing circuitry is to identify cancellation of the PUCCH transmission as an event which causes power consistency and phase continuity not to be maintained across PUCCH transmissions of the PUCCH repetition within a nominal time domain window (TDW).

An apparatus for a gNodeB (gNB) configured for operation in a fifth-generation new radio (5G NR) system, the apparatus comprising processing circuitry;

• and memory, the processing circuitry to:
• process a request for repetition of a physical uplink shared channel (PUSCH) scheduled by a random access response (RAR) uplink (UL) grant, the request received from a user equipment (UE);
• encode a downlink control information (DCI) format 0_0 with Cyclic Redundancy Check (CRC) scrambled by a Temporary Cell-Radio Network Temporary Identifier (TC-RNTI) for transmission to the UE, the DCI format 0_0 including a 5-bit modulation coding scheme (MCS) information field;
• wherein for a PUSCH scheduled by the DCI format 0_0:
• determine a number of PUSCH repetitions based on two most significant bits (MSBs) of the 5-bit MCS information field of the DCI format;
• and
• determine a modulation order and target code rate for transmitting the PUSCH using three least significant bits (LSBs) of the 5-bit MCS information field of the DCI format, the three LSBs of the MCS information field of the DCI format provide a first codepoint for use in determining a first MCS index;
• and
• wherein for the PUSCH scheduled by the RAR UL grant, the processing circuitry is to determine the modulation order and target code rate using two LSBs of an MCS information field of the RAR UL grant, the two LSBs of the MCS information field of the RAR UL grant provide a second codepoint for use in determining a second MCS index, and
• receive the PUSCH in accordance with the determined modulation order and target code rate and the number of repetitions.