Patent ID: 8171366
Filing Date: 2012-05-01
Classification: H04B,H04L,H04W

Abstract:
1. A method of retransmission control in a wireless relay system that relays data from a wireless base station to a wireless terminal via one or a plurality of wireless relay stations, the method comprising: on the wireless base station or a wireless relay station that is closer to the wireless terminal than the wireless base station, transmitting new data and first allocation information on a wireless resource for transmitting the new data on a wireless link from a lower-level wireless relay station that is located downstream of the wireless base station or the wireless relay station that is closer to the wireless terminal than the wireless base station to the wireless terminal; on a marked relay station that is a wireless relay station that receives the first allocation information and the new data, checking, upon generating second allocation information for transmitting the received data to the lower-level wireless relay station or the wireless terminal based on the first allocation information, a reception result from the lower-level wireless relay station or the wireless terminal for previous transmission data; generating the second allocation information for retransmitting the previous transmission data based on the first allocation information when the reception result is a reception failure; and transmitting the second allocation information and the previous transmission data to the lower-level wireless relay station or the wireless terminal, and buffering the new data.