Downlink control information size alignment for scheduling uplink transmission

A method of wireless communication performed by a network node, comprising:

• generating a downlink control information (DCI) message, wherein the DCI message has a fixed size based on one or more zero padding types of a plurality of zero padding types, and wherein the DCI message includes:
• a waveform selection field that indicates a waveform type associated with a physical uplink shared channel (PUSCH) transmission, and
• a sounding reference signal (SRS) resource set indication field that indicates a multiple transmission reception point (mTRP) transmission mode or a single transmission reception point (sTRP) transmission mode associated with the PUSCH transmission;
• and
• transmitting the DCI message to a user equipment (UE), wherein one or more fields in the DCI message are associated with one or more zero padding types based on one or more of a value of the waveform selection field or a value of the SRS resource set indication field.

A user equipment (UE) for wireless communication, comprising:

• a memory;
• and
• one or more processors, coupled to the memory, configured to:
• receive, from a network node, a downlink control information (DCI) message that schedules a physical uplink shared channel (PUSCH) transmission, wherein the DCI message has a fixed size based on one or more zero padding types of a plurality of zero padding types, and wherein the DCI message includes:
• a waveform selection field that indicates a waveform type associated with the PUSCH transmission, and
• a sounding reference signal (SRS) resource set indication field that indicates a multiple transmission reception point (mTRP) transmission mode or a single transmission reception point (sTRP) transmission mode associated with the PUSCH transmission;
• and
• decode the DCI message based on the one or more zero padding types associated with one or more fields in the DCI message that depend on one or more of a value of the waveform selection field or a value of the SRS resource set indication field.

A network node for wireless communication, comprising:

• a memory;
• and
• one or more processors, coupled to the memory, configured to:
• generate a downlink control information (DCI) message, wherein the DCI message has a fixed size based on one or more zero padding types of a plurality of zero padding types, and wherein the DCI message includes:
• a waveform selection field that indicates a waveform type associated with
• a physical uplink shared channel (PUSCH) transmission, and
• a sounding reference signal (SRS) resource set indication field that indicates a multiple transmission reception point (mTRP) transmission mode or a single transmission reception point (sTRP) transmission mode associated with the PUSCH transmission;
• and
• transmit the DCI message to a user equipment (UE), wherein one or more fields in the DCI message are associated with one or more zero padding types based on one or more of a value of the waveform selection field or a value of the SRS resource set indication field.