Patent ID: 7388852

Claim:
A method for initiating retransmission of frames comprising: a) detecting a failed attempt to transmit a frame at a physical layer of a receiver; b) sending a message from the physical layer of the receiver to a link control layer of the receiver to indicate the failed attempt to transmit a frame has been detected; and c) upon receipt of the message, sending a retransmission message from the link control layer of the receiver, the retransmission message configured to cause a sender to retransmit data associated with the frame, wherein the link control layer implements a Radio Link Protocol (RLP) using an RLP entity associated with an application, and wherein the frame is a physical layer frame encapsulating data represented by an RLP frame and the sending step further comprises generating the retransmission message to include identification for one of the group consisting of a recently received RLP frame and recently received data such that the sender can identify data or an RLP frame to retransmit.