QUALCOMM Incorporated
Signature based integrity check design for downlink grant error protection in enhanced component carriers

Abstract:

Methods, systems, and devices for wireless communication are described. After receiving a transmission, a user equipment (UE) may store status information for the transmission and send an acknowledgment message that includes a signature. When a base station receives an acknowledgment message with a signature, it may transmit a subsequent downlink grant that includes the same signature. The signature included in a downlink grant may enable the UE to retrieve a stored status and decode the next data transmission based on the retrieved status. That is, the base station may use the signature in the grant to indicate which acknowledgment the grant is based on.