Preemption indicators and code-block-group-based retransmission techniques for multiplexing different services on physical layer frames

A non-transitory computer-readable medium having instructions stored thereon that are executable by a computing device to perform operations comprising:

• receiving, in a radio resource configuration (RRC) message, a configuration of a maximum number of code block groups for wireless communications;
• receiving first downlink control information (DCI) in a physical downlink control channel (PDCCH) corresponding to a downlink packet transmission;
• receiving the downlink packet transmission associated with the first DCI in a set of resources indicated by the DCI, wherein the packet transmission comprises:
• a number of code blocks, wherein the number of code blocks in a transport block is greater than or equal to one;
• and
• a number of code block groups, wherein the number of code blocks per code block group is greater than or equal to one;
• and
• attempting decoding of the packet transmission based on the first DCI, wherein the first DCI includes a field indicating which code block groups are transmitted, wherein the number of entries in the field is based on the configuration of the maximum number of code block groups, and each entry in the field indicates whether a corresponding code block group is included in the transmission.

A method, comprising:

• transmitting, by a base station in a radio resource configuration (RRC) message, a configuration of a maximum number of code block groups for wireless communications;
• transmitting, by the base station, first downlink control information (DCI) in a physical downlink control channel (PDCCH) corresponding to a downlink packet transmission;
• transmitting, by the base station, the downlink packet transmission associated with the first DCI in a set of resources indicated by the DCI, wherein the packet transmission comprises:
• a number of code blocks, wherein the number of code blocks in a transport block is greater than or equal to one;
• and
• a number of code block groups, wherein the number of code blocks per code block group is greater than or equal to one;
• wherein the first DCI includes a field indicating which code block groups are transmitted, wherein the number of entries in the field is based on the configuration of the maximum number of code block groups, and each entry in the field indicates whether a corresponding code block group is included in the transmission.