Acknowledgment shaping for downlink data bursts

An apparatus for managing downlink data transmissions, comprising:

• a memory;
• and
• at least one processor coupled with the memory and configured to:
• obtain a burst of transmission control protocol (TCP) packets conveying packet data convergence protocol (PDCP) protocol data units (PDUs) by an application protocol TCP layer of a communication protocol stack of the apparatus;
• determine, based on an amount of data used to acknowledge (ACK) the burst of TCP packets, a first number of a first plurality of ACK tokens to transmit in a first transmission time interval (TTI), wherein the first plurality of ACK tokens corresponds to first data in one or more TCP packets of the burst of TCP packets, and wherein a maximum number of ACK tokens that can be transmitted in the first TTI is equal to a first threshold number of ACK tokens, and wherein, to determine the first number of the first plurality of ACK tokens, the at least one processor is configured to determine a minimum of:
• the first threshold number of ACK tokens, and
• a quotient of one-half of the amount of data divided by a size of each ACK token;
• transmit the first plurality of ACK tokens in the first TTI;
• and
• transmit a single ACK token in a second TTI subsequent to the first TTI, wherein the single ACK token corresponds to second data in one or more TCP packets of the burst of TCP packets.

An apparatus for managing downlink data transmissions, comprising:

• means for obtaining a burst of transmission control protocol (TCP) packets conveying packet data convergence protocol (PDCP) protocol data units (PDUs) by an application protocol TCP layer of a communication protocol stack of the UE;
• means for determining, based on an amount of data used to acknowledge (ACK) the burst of TCP packets, a first number of a first plurality of ACK tokens to transmit in a first transmission time interval (TTI), wherein the first plurality of ACK tokens corresponds to first data in one or more TCP packets of the burst of TCP packets, and wherein a maximum number of ACK tokens that can be transmitted in the first TTI is equal to a first threshold number of ACK tokens, wherein the means for determining the first number of the first plurality of ACK tokens comprises means for determining a minimum of:
• the first threshold number of ACK tokens, and
• a quotient of one-half of the amount of data divided by a size of each ACK token;
• means for transmitting the first plurality of ACK tokens in the first TTI;
• and
• means for transmitting a single ACK token in a second TTI subsequent to the first TTI, wherein the single ACK token corresponds to second data in one or more TCP packets of the burst of TCP packets.

A non-transitory computer readable medium comprising computer-executable instructions that, when executed by a processor of a user equipment (UE), cause the UE to perform a method of wireless communications, comprising:

• obtaining a burst of transmission control protocol (TCP) packets conveying packet data convergence protocol (PDCP) protocol data units (PDUs) by an application protocol TCP layer of a communication protocol stack of a user equipment (UE);
• determining, based on an amount of data used to acknowledge (ACK) the burst of TCP packets, a first number of a first plurality of ACK tokens to transmit in a first transmission time interval (TTI), wherein the first plurality of ACK tokens corresponds to first data in one or more TCP packets of the burst of TCP packets, and wherein a maximum number of ACK tokens that can be transmitted in the first TTI is equal to a first threshold number of ACK tokens, wherein determining the first number of the first plurality of ACK tokens comprises determining a minimum of:
• the first threshold number of ACK tokens, and
• a quotient of one-half of the amount of data divided by a size of each ACK token;
• transmitting the first plurality of ACK tokens in the first TTI;
• and
• transmitting a single ACK token in a second TTI subsequent to the first TTI, wherein the single ACK token corresponds to second data in one or more TCP packets of the burst of TCP packets.