Apparatus and method for providing television broadcasting service in a mobile communication system
AssigneeSamsung Electronics Co., Ltd.
InventorsByung-Hwan Kim, Yong-Hwan Lee
Life of this patent
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Abstract
An apparatus and method for providing broadcasting service in a mobile communication system. A format converter transcodes video data received from video resources to a format suitable for the mobile communication system. A base station spreads the transcoded video data with a predetermined dedicated spreading code and broadcasts the spread video signal. A mobile station receives and despreads the broadcasting signal from the base station with the spreading code.
Claims15
An apparatus for providing broadcasting service in a mobile communication system, comprising:
- a format converter for transcoding video data received from one or more video resources to a format suitable for a mobile communication system;
- a base station for spreading the transcoded video data with a predetermined spreading code and broadcasting the spread video signal;
- and
- a mobile station for receiving and despreading the broadcasting signal from the base station with the spreading codes,
- wherein the base station includes a quick paging channel transmitter for repeating quick paging indicators a predetermined number of times and outputting the repeated quick paging indicators.
A base station device for assigning a dedicated frequency for TV broadcasting, comprising:
- a channel encoder for encoding TV broadcasting channel data;
- an interleaver for interleaving the encoded data;
- an orthogonal spreader for spreading the interleaved data with a predetermined Walsh code corresponding to the TV broadcasting channel;
- a quick paging channel transmitter for repeating quick paging indicators a predetermined number of times and outputting the repeated quick paging indicators;
- an adder for summing outputs of the orthogonal spreader and the quick paging channel transmitter;
- a Pseudorandom noise (“PN”) spreader for spreading an output of the adder with a predetermined PN code;
- and
- a Radio Frequency (“RF”) module for transmitting the PN-spread signal using a dedicated frequency.
A mobile station device for receiving a broadcasting signal that has been spread with predetermined spreading codes and transmitted using a dedicated frequency for broadcasting in a base station, comprising:
- an RF module for being tuned to a dedicated frequency and receiving a broadcasting signal from a base station;
- a despreader for despreading the received broadcasting signal with a spreading code corresponding to a particular TV broadcasting channel;
- a deinterleaver for deinterleaving the despread broadcasting signal;
- a channel decoder for decoding the deinterleaved broadcasting signal;
- a video decoder for video-decoding an output of the channel decoder;
- and
- a quick paging signal monitor for monitoring paging for a voice call from the base station,
- wherein the output of the video decoder is processed and displayed on a display.
A method of receiving a broadcasting signal from a base station in a mobile station, which has been spread with predetermined spreading codes and transmitted using a dedicated frequency for broadcasting in the base station, comprising:
- assigning a spreading code corresponding to a particular TV channel to a demodulator in response to a key input indicating a request for broadcasting of a TV channel;
- tuning the demodulator to a dedicated frequency and despreading a broadcasting signal from a base station with the spreading code;
- displaying the despread broadcasting signal on a display;
- periodically monitoring a quick paging channel from the base station and determining whether there is paging for a voice call during receiving the broadcasting signal;
- and
- tuning the demodulator to a normal frequency of the base station in response to paging for the voice call, receiving a paging message, and setting up the voice call.
A method of providing TV broadcasting with a dedicated frequency in a base station, comprising:
- encoding TV broadcasting channel data and outputting coded symbols;
- spreading the coded symbols with one or more predetermined spreading codes corresponding to TV broadcasting channels and generating TV broadcasting channel signals;
- generating a quick paging channel signal by repeating quick paging indicators a predetermined number of times;
- adding the TV broadcasting channel signals and the quick paging channel signal;
- spreading the added signal with a PN code;
- and
- transmitting the PN-spread signal using a dedicated frequency.
Dependencies are inferred from the claim text.