Adaptive two-stage downlink control channel structure for code block group based fifth generation (5g) or other next generation systems

A method, comprising:

• in response to receiving, from a receiver device by a transmitter device comprising a processor, a feedback signal that indicates an error of a code block group that is part of a set of code block groups communicated to the receiver device,
• transmitting, by the transmitter device, during a first stage, first control data to the receiver device via a control channel, wherein the first control data is formatted in accordance with a first data structure having a first length that is fixed, and wherein the first control data comprises length data indicative of a third length of a transport block from which the set of code block groups was generated;
• and
• transmitting, by the transmitter device, during a second stage, second control data to the receiver device via the control channel, wherein the second control data is indicative of the code block group and is formatted in accordance with a second data structure having a second length that is variable.

A non-transitory machine-readable medium, comprising executable instructions that, when executed by a processor, facilitate performance of operations, comprising:

• in response to receiving, from a receiver system, a feedback signal that indicates an error of a code block group communicated to the receiver system,
• transmitting, during a stage, first control data to the receiver system via a control channel, wherein the first control data is formatted in accordance with a first data structure having a first length that is fixed, and wherein the first control data comprises length data indicative of a third length of a transport block from which multiple code block groups, comprising the code block group, were generated;
• and
• transmitting, during a different stage, second control data to the receiver system via the control channel, wherein the second control data is indicative of the code block group and is formatted in accordance with a second data structure having a second length that is modifiable.