Patent ID: 8363613
Filing Date: 2013-01-29
Classification: H04L,H04W

Abstract:
1. A method implemented by a transmitter device in a wireless network, the method comprising: receiving, by the transmitter device and from a receiver device, feedback that indicates a low signal-to-noise ratio (SNR) and that a packet error rate (PER) is above a target PER for a wireless communications link between the transmitter device and the receiver device; reducing, by the transmitter device, a current automatic repeat request (ARQ) block size from a first ARQ block size to a second ARQ block size for the wireless communications link based on the PER being above the target PER for the wireless communications link; transmitting, from the transmitter device and to the receiver device, data over the wireless communications link using the second ARQ block size; receiving, by the transmitter device and from the receiver device, feedback that indicates that a PER, for the data transmitted using the second ARQ block size, is below the target PER for the wireless communications link; increasing, by the transmitter device, the second ARQ block size to a third ARQ block size for the wireless communications link based on the PER, for the data transmitted using the second ARQ block size, being below the target PER for the wireless communications link, the third ARQ block size being between the first ARQ block size and the second ARQ block size; detecting, by the transmitter device, an improved SNR relative to the low SNR based on increasing the second ARQ block size to the third ARQ block size; and reverting, by the transmitter device, to the first ARQ block size after detecting the improved SNR.