Base station and broadcast channel transmission method
First Claim
1. 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.
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Abstract
A disclosed base station transmits 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 includes 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; and a signal waveform changing unit configured to process the generated broadcast channels such that the processed broadcast channels have different signal waveforms. Positions of the broadcast channels in the order of transmission in the predetermined cycle are associated with the signal waveforms of the broadcast channels.
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Citations
10 Claims
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1. 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:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method of transmitting a broadcast channel by a base station to a user device for communication with the user device where the broadcast channel is transmitted a predefined number of times in a predetermined cycle, the method comprising:
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a repetition step of repeating 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 step of processing the generated broadcast channels such that the processed broadcast channels have different signal waveforms that are associated with positions of the broadcast channels in order of transmission in the predetermined cycle; an interleaving step of interleaving information bits of the respective broadcast channels generated by the repetition step; a data modulation step of data-modulating the interleaved broadcast channels; and a spreading step of multiplying the data-modulated broadcast channels by scrambling codes, wherein the signal waveform changing step controls the spreading step to multiply the respective data-modulated broadcast channels by different scrambling codes.
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Specification