IP Library › Granted Patent US 10,355,900
Granted Patent B2
US 10,355,900 · App. 15/879,969 · Granted Jul 16, 2019

Signaling methods and apparatus

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Quick Facts
Patent No.
US 10,355,900
App. No.
15/879,969
Granted
Jul 16, 2019
Kind
B2
Abstract

A method for signaling preamble structure parameters. The method includes generating a bootstrap symbol that signals a single 8-bit preamble structure value. The single 8-bit preamble structure value identifies four different preamble structure parameters of a preamble that follows the bootstrap symbol. The method further includes generating a transmission frame including the bootstrap symbol, the preamble, and a data payload, and outputting the transmission frame for transmission via a terrestrial broadcast. The single 8-bit preamble structure value is limited to signaling a subset of different combinations of the four different preamble structure parameters.

Claims (205)

1. A method for signaling preamble structure parameters, the method comprising:

generating a bootstrap symbol that signals a single 8-bit preamble structure value, the single 8-bit preamble structure value identifying four different preamble structure parameters of a preamble that follows the bootstrap symbol;

generating a transmission frame including the bootstrap symbol, the preamble, and a data payload; and

outputting the transmission frame for transmission via a terrestrial broadcast, wherein

the single 8-bit preamble structure value is limited to signaling a subset of different combinations of the four different preamble structure parameters.

2. The method of claim 1 , wherein the total number of different combinations of the four different preamble structure parameters defined in the subset is less than 256.

3. The method of claim 1 , wherein the four different preamble structure parameters include one or a combination of FFT (Fast Fourier Transform) size, guard interval length, a frequency domain displacement component of a SPP (Scattered Pilot Pattern), and modulation information.

4. The method of claim 1 , wherein a time domain displacement component of a SPP (Scattered Pilot Pattern) for each of the subset of different combinations of the four different preamble structure parameters is equal to one.

5. The method of claim 1 , wherein

one of the four different preamble structure parameters is FFT (Fast Fourier Transform) size, and

the FFT size of at least a first one of the subset of different combinations of the four different preamble structure parameters is 8K, the FFT size of at least a second one of the subset of different combinations of the four different preamble structure parameters is 16K, and the FFT size of at least a third one of the subset of different combinations of the four different preamble structure parameters is 32K.

6. The method of claim 3 , wherein the subset of different combinations of the four different preamble structure parameters includes:

Guard interval

length

(samples)

8K FFT

16K FFT

32K FFT

192

SP16_1 

SP32_1 

SP32_1

384

SP8_1

SP16_1 

SP32_1

512

SP6_1

SP12_1 

SP24_1

768

SP4_1

SP8_1

SP16_1

1024

SP3_1

SP6_1

SP12_1

1536

SP4_1

SP4_1

 SP8_1

2048

SP3_1

SP3_1

 SP6_1

2432

NA

SP3_1

 SP6_1

3072

NA

SP4_1

SP3_1, SP8_1

3648

NA

SP4_1

SP3_1, SP8_1

4096

NA

SP3_1

 SP3_1

4864

NA

NA

  SP3_1.

7. A transmission apparatus, comprising:

a memory, and

circuitry configured to

generate a bootstrap symbol that signals a single 8-bit preamble structure value, the single 8-bit preamble structure value identifying four different preamble structure parameters of a preamble that follows the bootstrap symbol;

generate a transmission frame including the bootstrap symbol, the preamble, and a data payload; and

output the transmission frame for transmission via a terrestrial broadcast, wherein

the single 8-bit preamble structure value is limited to signaling a subset of different combinations of the four different preamble structure parameters.

8. A method for decoding a preamble of a frame, the method comprising:

detecting, by processing circuitry of a reception apparatus, a bootstrap symbol that signals a single 8-bit preamble structure value, the single 8-bit preamble structure value identifying four different preamble structure parameters of the preamble that follows the bootstrap symbol; and

processing the preamble that follows the bootstrap symbol based on the four different preamble structure parameters identified by the single 8-bit preamble structure value, wherein

the single 8-bit preamble structure value is limited to signaling a subset of different combinations of the four different preamble structure parameters.

9. The method of claim 8 , wherein the total number of different combinations of the four different preamble structure parameters defined in the subset is less than 256.

10. The method of claim 8 , wherein the four different preamble structure parameters include one or a combination of FFT (Fast Fourier Transform) size, guard interval length, a frequency domain displacement component of a SPP (Scattered Pilot Pattern), and modulation information.

11. The method of claim 8 , wherein a time domain displacement component of a SPP (Scattered Pilot Pattern) for each of the subset of different combinations of the four different preamble structure parameters is equal to one.

12. The method of claim 8 , wherein

one of the four different preamble structure parameters is FFT (Fast Fourier Transform) size, and

the FFT size of at least a first one of the subset of different combinations of the four different preamble structure parameters is 8K, the FFT size of at least a second one of the subset of different combinations of the four different preamble structure parameters is 16K, and the FFT size of at least a third one of the subset of different combinations of the four different preamble structure parameters is 32K.

13. The method of claim 10 , wherein the subset of different combinations of the four different preamble structure parameters includes:

Guard interval

length

(samples)

8K FFT

16K FFT

32K FFT

192

SP16_1 

SP32_1 

SP32_1

384

SP8_1

SP16_1 

SP32_1

512

SP6_1

SP12_1 

SP24_1

768

SP4_1

SP8_1

SP16_1

1024

SP3_1

SP6_1

SP12_1

1536

SP4_1

SP4_1

 SP8_1

2048

SP3_1

SP3_1

 SP6_1

2432

NA

SP3_1

 SP6_1

3072

NA

SP4_1

SP3_1, SP8_1

3648

NA

SP4_1

SP3_1, SP8_1

4096

NA

SP3_1

 SP3_1

4864

NA

NA

  SP3_1.

14. A reception apparatus, comprising:

a memory; and

processing circuitry configured to

detect a bootstrap symbol that signals a single 8-bit preamble structure value, the single 8-bit preamble structure value identifying four different preamble structure parameters of the preamble that follows the bootstrap symbol; and

process the preamble that follows the bootstrap symbol based on the four different preamble structure parameters identified by the single 8-bit preamble structure value, wherein

the single 8-bit preamble structure value is limited to signaling a subset of different combinations of the four different preamble structure parameters.

15. The reception apparatus of claim 14 , wherein the total number of different combinations of the four different preamble structure parameters defined in the subset is less than 256.

16. The reception apparatus of claim 14 , wherein the four different preamble structure parameters include one or a combination of FFT (Fast Fourier Transform) size, guard interval length, a frequency domain displacement component of a SPP (Scattered Pilot Pattern), and modulation information.

17. The reception apparatus of claim 14 , wherein a time domain displacement component of a SPP (Scattered Pilot Pattern) for each of the subset of different combinations of the four different preamble structure parameters is equal to one.

18. The reception apparatus of claim 14 , wherein

one of the four different preamble structure parameters is FFT (Fast Fourier Transform) size, and

the FFT size of at least a first one of the subset of different combinations of the four different preamble structure parameters is 8K, the FFT size of at least a second one of the subset of different combinations of the four different preamble structure parameters is 16K, and the FFT size of at least a third one of the subset of different combinations of the four different preamble structure parameters is 32K.

19. The reception apparatus of claim 16 , wherein the subset of different combinations of the four different preamble structure parameters includes:

Guard interval

length

(samples)

8K FFT

16K FFT

32K FFT

192

SP16_1 

SP32_1 

SP32_1

384

SP8_1

SP16_1 

SP32_1

512

SP6_1

SP12_1 

SP24_1

768

SP4_1

SP8_1

SP16_1

1024

SP3_1

SP6_1

SP12_1

1536

SP4_1

SP4_1

 SP8_1

2048

SP3_1

SP3_1

 SP6_1

2432

NA

SP3_1

 SP6_1

3072

NA

SP4_1

SP3_1, SP8_1

3648

NA

SP4_1

SP3_1, SP8_1

4096

NA

SP3_1

 SP3_1

4864

NA

NA

  SP3_1.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 30, 2020
From: SONY CORPORATION
To: SATURN LICENSING LLC
Reel/Frame 052256/0443 →