QUALCOMM Incorporated
Transport block size indication for retransmissions in wireless communications

Abstract:

Methods, systems, and devices for wireless communications are described that provide for transport block size (TBS) determination for one or more wireless retransmissions of an initial transmission, in which the initial transmission may not be successfully received at a receiver. The receiver may determine, based on control information received in a retransmission, that the associated initial transmission was lost, and that the retransmission is not able to be decoded at the receiver. The receiver, in such cases, may provide a negative acknowledgment of the retransmission and an indication to the transmitter that the initial transmission was lost. The transmitter, responsive to the indication that the initial transmission was lost, may discontinue retransmitting the transmission, or may transmit additional control information for use in decoding the one or more retransmissions.