Patent ID: 8265031

Claim:
A base station transmitting a broadcast channel to a user device a predefined number of times in a predetermined cycle for communication with the user device, the base station comprising: a repetition unit configured to repeat the broadcast channel, after the broadcast channel is channel-coded, for the predefined number of times to generate multiple broadcast channels; a signal waveform changing unit configured to process the generated broadcast channels such that the processed broadcast channels have different signal waveforms, wherein positions of the broadcast channels in order of transmission in the predetermined cycle are associated with the signal waveforms of the broadcast channels; an interleaving unit configured to interleave information bits of the respective broadcast channels generated by the repetition unit; a data modulation unit configured to data-modulate the interleaved broadcast channels; and a spreading unit configured to multiply the data-modulated broadcast channels by scrambling codes, wherein the signal waveform changing unit is configured to control the spreading unit to multiply the respective data-modulated broadcast channels by different scrambling codes.