Patent ID: 9591637
Date: 2017-03-07
CPC Classifications: H04J,H04L,H04W

Claim:
1. A method comprising: generating a first signal by a wireless device, by at least demodulating, descrambling and decoding signals received on a plurality of orthogonal frequency division multiplexing (OFDM) subcarriers in a first OFDM symbol; producing a processed first signal, by at least encoding, scrambling, modulating and scaling the first signal; generating a second signal, by subtracting the processed first signal from received signals on the plurality of OFDM subcarriers in the first OFDM symbol; producing a control format indicator, by at least demodulating, descrambling and decoding the second signal; and determining a number of OFDM symbols of a control region of a base station employing the control format indicator.