QUALCOMM Incorporated
TECHNIQUES FOR DETERMINING RESOURCE ASSIGNMENTS FOR DECODE AND FORWARD RELAYING VIA DOWNLINK CONTROL INFORMATION

Abstract:

Methods, systems, and devices for wireless communications are described. In some systems, a source user equipment (UE) and a relay UE may participate in a decode and forward relaying procedure to provide greater uplink coverage to a base station. As part of the decode and forward relaying procedure, the source UE may transmit source data to the base station and the relay UE may overhear the source data transmission, decode the source data transmission from the source UE, and forward the source data to the base station. In some cases, the base station may unsuccessfully receive the source data from the source UE and the relay UE, and may transmit a groupcast downlink control information (DCI) message to indicate a resource assignment that the source UE and the relay UE may use for retransmitting the source data or for transmitting new source data, or both.