Patent ID: 9178603
Filing Date: 2015-11-03
Classification: H04B,H04L

Abstract:
1. A method for wireless communication, comprising: obtaining an indication to operate in an amplify-and-forward (AF) mode or a decode-and-forward (DF) mode by a relay station; amplifying and forwarding signals by the relay station to support communication between an upstream station and a downstream station if the AF mode is selected; decoding and forwarding signals by the relay station to support communication between the upstream station and the downstream station if the DF mode is selected; receiving a signal from the upstream station by the relay station in the DF mode; sending a negative acknowledgement having a first type (NACK Type 1) to the upstream station if high peak-to-average-power ratio (PAPR) is detected or PAPR decoding fails for the signal; and sending a negative acknowledgement having a second type (NACK Type 2) to the upstream station if channel decoding fails for the signal.