Methods and systems for performance enhancement of downlink shared channels

A method performed by a wireless device, the method comprising:

• receiving a control message, the control message indicating at least a Modulation and Coding Scheme (MCS) and a scaling factor for a shared downlink channel, wherein the scaling factor indicates a value less than 1;
• determining a transport block size (TBS) based at least on applying the scaling factor to an intermediate number of information bits, the intermediate number of information bits determined based at least on the MCS.

A network node comprising memory operable to store instructions and processing circuitry operable to execute the instructions, wherein the processing circuitry executes the instructions to:

• indicate in a control message at least a Modulation and Coding Scheme (MCS) and a scaling factor for a shared downlink channel, the scaling factor indicating a value less than 1;
• and
• send the control message to a User Equipment (UE), the control message enabling the UE to determine an intermediate number of information bits based at least on the MCS, the control message further enabling the UE to determine a Transport Block Size (TBS) for the shared downlink channel based at least on applying the scaling factor to the intermediate number of information bits.

A wireless device comprising memory operable to store instructions and processing circuitry operable to execute the instructions, wherein the processing circuitry executes the instructions to:

• receive a control message, the control message indicating at least a Modulation and Coding Scheme (MCS) and a scaling factor for a shared downlink channel, wherein the scaling factor indicates a value less than 1;
• determine a transport block size (TBS) based at least on applying the scaling factor to an intermediate number of information bits, the intermediate number of information bits determined based at least on the MCS.