IP Library › Granted Patent US 9,565,044

Granted Patent B2

US 9,565,044 · App. 14/497,633 · Granted Feb 7, 2017

Transmitting apparatus, receiving apparatus, and control methods thereof

Inventors: Hak-ju Lee (Seoul, KR); Soon-chan Kwon (Incheon, KR); Se-ho Myung (Yongin-si, KR); Jung-hyun Park (Hwaseong-si, KR); Joo-sung Park (Suwon-si, KR); Hyun-koo Yang (Seoul, KR); Jung-pil Yu (Seongnam-si, KR); Sung-ryul Yun (Suwon-si, KR); Hong-sil Jeong (Suwon-si, KR); Jung-Il Han (Seongnam-si, KR)

Assignee: SAMSUNG ELECTRONICS CO., LTD.

H04L27/2602 H04L1/0071 H04L5/0048 H04L27/265 H04L27/2605 H04L27/2627 H04L27/2628

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Quick Facts

Patent No.: US 9,565,044
App. No.: 14/497,633
Granted: Feb 7, 2017
Kind: B2

External Links

USPTO Patent Center↗ Full Patent PDF↗

Abstract

A transmitting apparatus, a receiving apparatus and methods of controlling these apparatuses are provided. The transmitting apparatus includes: an input processor configured to process a plurality of input streams to generate a plurality of base band frames; a bit interleaved and coded modulation (BICM) processor configured to perform forward error correction (FEC) coding, constellation mapping, and interleaving on the plurality of baseband frames; a symbol generator configured to add signaling data to the plurality of baseband frames output from the BICM processor to generate an orthogonal frequency division multiplexing (OFDM) symbol; and a transmitter configured to select at least one of a plurality of pilot patterns based on a fast Fourier transform (FFT) size and a guard interval fraction, insert a pilot in the OFDM symbol according to the selected pilot pattern, and transmit a stream including the pilot-inserted OFDM symbol.

Claims (366)

1. A transmitting apparatus, comprising:

an input processor configured to process an input stream to generate at least one frame;

a bit interleaved and coded modulation (BICM) processor configured to perform forward error correction (FEC) coding, constellation mapping, and interleaving on the frame;

a symbol generator configured to add signaling data to the frame output from the BICM processor to generate an orthogonal frequency division multiplexing (OFDM) symbol; and

a transmitter configured to select at least one of a plurality of pilot patterns based on a fast Fourier transform (FFT) size and a guard interval fraction, insert a pilot in the OFDM symbol according to the selected pilot pattern, and transmit a stream including the pilot-inserted OFDM symbol,

wherein a maximum length of a predetermined sequence inserted into the OFDM symbol is defined based on an FFT size and a guard interval fraction as shown in a following table.

Maximum sequence length, NPN (chips)

Guard Interval Faction

FFT

12/

24/

36/

48/

57/

72/

96/

Mode

512

32K

16K

100

204

200

196

192

188

184

180

172.

2. The transmitting apparatus of claim 1 , wherein the transmitter includes a spectrum shaper configured to filter a signal corresponding to the OFDM symbol.

3. The transmitting apparatus of claim 2 , wherein the spectrum shaper increases attenuation of an intensity of the signal corresponding to the OFDM symbol to generate a signal having a preset form while reducing a filtering period length of the signal.

4. A transmitting apparatus, comprising:

an input processor configured to process an input stream to generate at least one frame;

a bit interleaved and coded modulation (BICM) processor configured to perform forward error correction (FEC) coding, constellation mapping, and interleaving on the frame;

a symbol generator configured to add signaling data to the frame output from the BICM processor to generate an orthogonal frequency division multiplexing (OFDM) symbol; and

wherein the plurality of pilot patterns are defined based on an FFT size and a guard interval fraction in a single input single output (SISO) mode as shown in a following table.

Guard interval

FFT

24/

36/

48/

57/

72/

96/

size

3/512

6/512

12/512

512

32K

P32,2

P16,2

P8,2

P32,2

P16,2

P32,2

16K

P32,2

P16,2

P8,2

P4,4

P16,4

P16,2

P8,2

P32,2

P16,4

P16,2

P32,2

P16,4.

5. A transmitting apparatus, comprising:

an input processor configured to process an input stream to generate at least one frame;

a bit interleaved and coded modulation (BICM) processor configured to perform forward error correction (FEC) coding, constellation mapping, and interleaving on the frame;

a symbol generator configured to add signaling data to the frame output from the BICM processor to generate an orthogonal frequency division multiplexing (OFDM) symbol; and

wherein the plurality of pilot patterns are defined based on an FFT size and a guard interval fraction in a multiple input single output (MISO) mode as shown in a following table.

Guard interval

FFT

24/

36/

48/

57/

72/

96/

size

3/512

6/512

12/512

512

32K

P8,2

P16,2

16K

P8,2

P4,4

P16,2

P8,2

P16,4

P16,2

P32,2

P16,4

P16,2

P8,2

P4,4

P16,4

P16,2

P8,2

P32,2

P16,4

P16,2

P32,2

P16,4.

6. A method of controlling a transmitting apparatus, the method comprising:

processing an input stream to generate at least one frame;

performing forward error correction (FEC) coding, constellation mapping, and interleaving on the frame;

adding signaling information to the interleaved frame to generate an orthogonal frequency division multiplexing (OFDM) symbol; and

selecting at least one of a plurality of pilot patterns based on a fast Fourier transform (FFT) size and a guard interval fraction, inserting a pilot in the OFDM symbol according to the selected pilot pattern, and transmitting a stream including the pilot-inserted OFDM symbol,

wherein a maximum length of a predetermined sequence inserted into the OFDM symbol is defined based on an FFT size and a guard interval fraction as shown in a following table.

Maximum sequence length, NPN (chips)

Guard Interval Faction

FFT

24/

36/

48/

57/

72/

96/

Mode

3/512

6/512

12/512

512

32K

16K

100

204

200

195

192

188

184

180

172.

7. The method of claim 6 , wherein the transmitting includes spectrum shaping to filter a signal corresponding to the OFDM symbol.

8. The method of claim 7 , wherein the spectrum shaping includes increasing attenuation of an intensity of the signal corresponding to the OFDM symbol to generate a signal having a preset form while reducing a filtering period length of the signal.

9. A method of controlling a transmitting apparatus, the method comprising:

processing an input stream to generate at least one frame;

performing forward error correction (FEC) coding, constellation mapping, and interleaving on the frame;

adding signaling information to the interleaved frame to generate an orthogonal frequency division multiplexing (OFDM) symbol; and

wherein the plurality of pilot patterns are defined based on an FFT size and a guard interval fraction in a single input single output (SISO) mode as shown in a following table.

TABLE

Guard interval

FFT

12/

24/

36/

48/

57/

72/

96/

size

3/512

6/512

512

32K

P32,2

P16,2

P8,2

P32,2

P16,2

P32,2

16K

P32,2

P16,2

P8,2

P4,4

P16,4

P16,2

P8,2

P32,2

P16,4

P16,2

P32,2

P16,4.

10. A method of controlling a transmitting apparatus, the method comprising:

processing an input stream to generate at least one frame;

performing forward error correction (FEC) coding, constellation mapping, and interleaving on the frame;

adding signaling information to the interleaved frame to generate an orthogonal frequency division multiplexing (OFDM) symbol; and

wherein the plurality of pilot patterns are defined based on an FFT size and a guard interval fraction in a multiple input single output (MISO) mode as shown in a following table.

TABLE

Guard interval

FFT

24/

36/

48/

57/

72/

96/

size

3/512

6/512

12/512

512

32K

P8,2

P16,2

16K

P8,2

P4,4

P16,2

P8,2

P16,4

P16,2

P32,2

P16,4

P16,2

P8,2

P4,4

P16,4

P16,2

P8,2

P32,2

P16,4

P16,2

P32,2

P16,4.

Assignments (1)

ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 26, 2014

From: LEE, HAK-JU; KWON, SOON-CHAN; MYUNG, SE-HO; PARK, JUNG-HYUN; PARK, JOO-SUNG; YANG, HYUN-KOO; YU, JUNG-PIL; YUN, SUNG-RYUL; JEONG, HONG-SIL; HAN, JUNG-IL

To: SAMSUNG ELECTRONICS CO., LTD.

Reel/Frame 033826/0318 →

Priority Claims (1)

KR 10-2014-0067460 · Jun 3, 2014 · national

Continuity (2)

Provisional Application 61883303 · Sep 27, 2013

Related Publication 20150092882A1 · Apr 2, 2015