Patent ID: 7185256
Filing Date: 2007-02-27
Classification: H04L,H04W

Abstract:
1. A communication method comprising the steps of: a) transmitting an ACK signal indicating that a received packet includes no error or a NACK signal indicating that the received packet includes error from a reception station to a transmission station, and performing automatic repeat request; b) obtaining reliability of the received packet when demodulating the received packet at the reception station; and c) reporting from the reception station to the transmission station the reliability of the received packet, utilizing the ACK/NACK signal, wherein the NACK signal expresses at least two levels of reliability; d) determining based on the reliability of said received packet whether or not said received packet should be stored to be combined with a re-transmission packet, when said received packet includes an error; and e) performing re-transmission control based on the determination made in said step d).