# US 2014/0153615 A1 · Method and apparatus for transmitting/receiving broadcasting-communication data

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- Number: US 2014/0153615 A1
- Document ID: US20140153615A1
- Status: Published application
- Kind: A1
- Application number: 14/174,622
- Filed: 2014-02-06
- Published: 2014-06-05
- Earliest claimed: 2008-05-29
- Assignees: Electronics and Telecommunications Research Institute
- Applicants: Electronics and Telecommunications Research Institute
- Inventors: Sung-Ik PARK; Hyoungsoo LIM; Heung-Mook KIM; Soo-In LEE
- Web page: https://patentgrep.com/patent/US20140153615A1

## CPC

- H04H 40/18: Arrangements characterised by circuits or components specially adapted for receiving
- H04B 1/709: Correlator structure
- H04L 1/0041: {Arrangements at the transmitter end}
- H04L 1/0047: {Decoding adapted to other signal detection operation (in conjunction with sequence estimation or equalization H04L25/03286)}
- H04L 1/0065: {Serial concatenated codes}
- H04L 1/0071: {Use of interleaving (interleaving per se H03M13/27)}
- H04W 52/322: {Power control of broadcast channels}
- H04L 1/0057: {Block codes (H04L1/0061, H04L1/0064 take precedence)}
- H04L 2001/0093: {Point-to-multipoint}
- H04H: BROADCAST COMMUNICATION (multiplex communication H04J; pictorial communication aspects of broadcast systems H04N)
- H04B: TRANSMISSION
- H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M)
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)

## Abstract

A broadcasting-communication data receiving apparatus for receiving mixed signals including original signals and additional signals. The apparatus includes a receiver for receiving the mixed signals and outputting mixed signals of a predetermined band, a first demodulator for receiving the mixed signals of the predetermined band and generating baseband mixed signals, an original data generator for receiving the baseband mixed signals and generating original data, an original signal generator for receiving the original data and generating baseband original signals, a modulator for receiving the baseband original signals and generating original signals of a predetermined band, a subtractor for subtracting the original and mixed signals of the predetermined band to thereby generate additional signals of a predetermined band, a second demodulator for receiving the additional signals of the predetermined band and generating baseband additional signals, and an additional data generator for receiving the baseband additional signals and generating additional data.

## Claims

### Claim 1

A broadcasting-communication data receiving apparatus for receiving mixed signals including original signals and additional signals, comprising:
a receiver configured to receive the mixed signals and output mixed signals of a predetermined band;
a first demodulator configured to receive the mixed signals of the predetermined band and generate baseband mixed signals;
an original data generator configured to receive the baseband mixed signals and generate original data;
an original signal generator configured to receive the original data and generate baseband original signals;
a modulator configured to receive the baseband original signals and generate original signals of a predetermined band;
a subtractor configured to subtract the original signals of the predetermined band from the mixed signals of the predetermined band to thereby generate additional signals of a predetermined band;
a second demodulator configured to receive the additional signals of the predetermined band and generate baseband additional signals; and
an additional data generator configured to receive the baseband additional signals and generate additional data.

### Claim 2 (depends on 1)

The broadcasting-communication data receiving apparatus of claim 1, wherein the original data generator includes:
an inner decoder configured to receive the baseband mixed signals and output inner-decoded baseband mixed signals;
a deinterleaver configured to receive the inner-decoded baseband mixed signals and output deinterleaved baseband mixed signals;
an outer decoder configured to receive the deinterleaved baseband mixed signals and output outer-decoded baseband mixed signals; and
a derandomizer configured to generate original data by receiving and derandomizing the outer-decoded baseband mixed signals.

### Claim 3 (depends on 1)

The broadcasting-communication data receiving apparatus of claim 1, wherein the additional data generator includes:
a despreading sequence generator configured to generate an orthogonal or quasi-orthogonal sequence;
a correlator configured to calculate correlation values between the baseband additional signals and the despreading sequence, select a largest correlation value, and output baseband additional signals having a spreading gain by the largest correlation value; and
a first decoder configured to remove noise from the baseband additional signals outputted from the correlator.

### Claim 4 (depends on 3)

The broadcasting-communication data receiving apparatus of claim 3, wherein the decoder includes:
a deinterleaver configured to receive the baseband additional signals outputted from the correlator and output deinterleaved baseband additional signals; and
a noise removing decoder configured to remove noise from the deinterleaved baseband additional signals obtained in the deinterleaver.

### Claim 5

A broadcasting-communication data receiving apparatus for receiving mixed signals including original signals and additional signals, comprising:
a receiver configured to receive the mixed signals and output mixed signals of a predetermined band;
a first demodulator configured to receive the mixed signals of the predetermined band and generate baseband mixed signals;
an original data generator configured to receive the baseband mixed signals and generate original data;
a decider configured to generate baseband original signals by removing components other than the baseband original signals from the baseband mixed signals;
a modulator configured to receive the baseband original signals and generate original signals of a predetermined band;
a subtractor configured to subtract the original signals of the predetermined band from the mixed signals of the predetermined band to thereby generate additional signals of a predetermined band;
a second demodulator configured to receive the additional signals of the predetermined band and generate baseband additional signals; and
an additional data generator configured to receive the baseband additional signals and generate additional data.

### Claim 6

A broadcasting-communication data receiving apparatus for receiving mixed signals including original signals and additional signals, comprising:
a receiver configured to receive the mixed signals and output mixed signals of a predetermined band;
a demodulator configured to receive the mixed signals of the predetermined band and generate baseband mixed signals;
an original data generator configured to receive the baseband mixed signals and generate original data;
an original signal generator configured to receive the original data and generate baseband original signals;
a subtractor configured to subtract the baseband original signals from the baseband mixed signals to thereby generate baseband additional signals; and
an additional data generator configured to receive the baseband additional signals and generate additional data.

### Claim 7

A broadcasting-communication data receiving apparatus for receiving mixed signals including original signals and additional signals, comprising:
a receiver configured to receive the mixed signals and output mixed signals of a predetermined band;
a demodulator configured to receive the mixed signals of the predetermined band and generate baseband mixed signals;
an original data generator configured to receive the baseband mixed signals and generate original data;
a decider configured to generate baseband original signals by removing components other than the baseband original signals from the baseband mixed signals;
a subtractor configured to subtract the baseband original signals from the baseband mixed signals to thereby generate baseband additional signals; and
an additional data generator configured to receive the baseband additional signals and generate additional data.

### Claim 8

A broadcasting-communication data receiving method for receiving mixed signals including original signals and additional signals, comprising:
receiving the mixed signals and outputting mixed signals of a predetermined band;
receiving the mixed signals of the predetermined band and generating baseband mixed signals;
receiving the baseband mixed signals and generating original data;
receiving the original data and generating baseband original signals;
receiving the baseband original signals and generating original signals of a predetermined band;
subtracting the original signals of the predetermined band from the mixed signals of the predetermined band to thereby generate additional signals of a predetermined band;
receiving the additional signals of the predetermined band and generating baseband additional signals; and
receiving the baseband additional signals and generating additional data.