Dynamic transmission front end and digital-to-analog converter in modem

An apparatus for wireless communication at a user equipment (UE), comprising:

• a processor,
• memory in electronic communication with the processor, and
• instructions stored in the memory and executable by the processor to cause the apparatus to:
• receive a downlink control message indicating at least one of a modulation and coding scheme associated with at least one uplink transmission or a number of layers associated with the at least one uplink transmission;
• determine to adjust a power consumption level of the UE;
• adjust, based at least in part on determining to adjust the power consumption level and based at least in part on the at least one of the modulation and coding scheme or the number of layers, a resolution of bits, associated with the at least one uplink transmission, input to a digital-to-analog converter (DAC) of the UE or a transmission front end component (TxFE) of the UE to adjust an effective number of bits (ENOB) associated with the DAC or a number of bits (NOB) associated with the TxFE, respectively;
• and
• transmit the at least one uplink transmission according to the adjusted ENOB or NOB.

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

• receiving a downlink control message indicating at least one of a modulation and coding scheme associated with at least one uplink transmission or a number of layers associated with the at least one uplink transmission;
• reducing, based at least in part on the at least one of the modulation and coding scheme or the number of layers, a first resolution of bits, associated with the at least one uplink transmission, input to a digital-to-analog converter (DAC) of the UE or a second resolution of bits input to a transmission front end component (TxFE) of the UE to reduce an effective number of bits (ENOB) associated with the DAC or a number of bits (NOB) associated with the TxFE, respectively, the reducing of the ENOB or the NOB reducing a power consumption level of the UE;
• and
• transmitting the at least one uplink transmission according to the adjusted ENOB or NOB.

An apparatus for wireless communication at a user equipment (UE), comprising:

• a processor,
• memory in electronic communication with the processor, and
• instructions stored in the memory and executable by the processor to cause the apparatus to:
• receive a downlink control message indicating at least one of a modulation and coding scheme associated with at least one uplink transmission or a number of layers associated with the at least one uplink transmission;
• reduce, based at least in part on the at least one of the modulation and coding scheme or the number of layers, a first resolution of bits, associated with the at least one uplink transmission, input to a digital-to-analog converter (DAC) of the UE or a second resolution of bits input to a transmission front end component (TxFE) of the UE to reduce an effective number of bits (ENOB) associated with the DAC or a number of bits (NOB) associated with the TxFE, respectively, the reducing of the ENOB or the NOB reducing a power consumption level of the UE;
• and
• transmit the at least one uplink transmission according to the adjusted ENOB or NOB.

A method for wireless communication at a base station, comprising:

• establishing a communication link with a user equipment (UE);
• transmitting, to the UE, a downlink control message comprising at least one of a modulation and coding scheme associated with at least one uplink transmission or a number of layers associated with the at least one uplink transmission, wherein the at least one of the modulation and coding scheme or the number of layers indicates to adjust a resolution of bits, associated with the at least one uplink transmission, input to a digital-to-analog converter (DAC) of the UE or a transmission front end component (TxFE) of the UE to adjust an effective number of bits (ENOB) associated with the DAC or a number of bits (NOB) associated with the TxFE, respectively, wherein the at least one of the modulation and coding scheme or the number of layers indicate a second number of bits by which to adjust the ENOB and a third number of bits by which to adjust the NOB;
• and
• receiving, from the UE, the at least one uplink transmission based at least in part on the at least one of the modulation and coding scheme or the number of layers indicating to adjust the resolution of bits.

An apparatus for wireless communication at a base station, comprising:

• a processor,
• memory in electronic communication with the processor, and
• instructions stored in the memory and executable by the processor to cause the apparatus to:
• establish a communication link with a user equipment (UE);
• transmit, to the UE, a downlink control message comprising at least one of a modulation and coding scheme associated with at least one uplink transmission or a number of layers associated with the at least one uplink transmission, wherein the at least one of the modulation and coding scheme or the number of layers indicates to adjust a resolution of bits, associated with the at least one uplink transmission, input to a digital-to-analog converter (DAC) of the UE or a transmission front end component (TxFE) of the UE to adjust an effective number of bits (ENOB) associated with the DAC or a number of bits (NOB) associated with the TxFE, respectively, wherein the at least one of the modulation and coding scheme or the number of layers indicate a second number of bits by which to adjust the ENOB and a third number of bits by which to adjust the NOB;
• and
• receive, from the UE, the at least one uplink transmission based at least in part on the at least one of the modulation and coding scheme or the number of layers indicating to adjust the resolution of bits.