Patent ID: 9531515
Filing Date: 2016-12-27
CPC Classification: H04B,H04L,H04W

Claim Text:
1. A method comprising: applying, during a transmission, at least one of time division multiplexing and frequency division multiplexing between a sounding reference signal, a control channel, a demodulation reference signal and a data channel; applying clustered sub-carrier mapping for the sounding reference signal and the control channel; transmitting the sounding reference signal so as to function as a demodulation reference signal for the control channel; and transmitting information on the control channel and information on the data channel during a same sub-frame, wherein backward compatibility is provided by using a sounding reference signal symbol and special time division duplex blocks for the control channel in order to minimize legacy impact, said special time division duplex blocks corresponding to a long-term evolution-advanced physical uplink control channel.