Control channel in a wireless device and wireless network

摘要

A wireless device at least demodulates, descrambles and decodes a first control signal to generate a first signal. The wireless device processes the first signal by at least encoding, scrambling, modulating and scaling the first signal. The wireless device subtracts the processed first signal from received signals to generate a second signal. The wireless device at least demodulates, descrambles and decodes the second signal to generate a physical broadcast message. The wireless device determines a plurality of system parameters of a base station employing the physical broadcast message.

主权项

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.