Signaling methods and apparatus

• US 9,590,782 B2
• Filed: 06/22/2015
• Issued: 03/07/2017
• Est. Priority Date: 06/22/2015
• Status: Active Grant

• Current Assignee: Saturn Licensing LLC (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Amimoto, Tatsuki, Michael, Lachlan, Goto, Yuken
• Primary Examiner(s): KAMARA, MOHAMED A
• Application Number:
  US14/746,541
• Publication Number:
  US 20160373221A1
• Time in Patent Office: 624 Days
• US Class Current: 1/1
• CPC Class Codes: H04L 27/2613 Structure of the reference signals
• CPC Class Codes: H04L 5/0007 the frequencies being orthogonal, e.g. OFDM(A), DMT
• CPC Class Codes: H04L 5/0044 allocation of payload
• CPC Class Codes: H04L 5/005 of common pilots, i.e. pilots destined for multiple users or terminals
• CPC Class Codes: H04L 5/0053 Allocation of signaling, i.e. of overhead other than pilot signals

Abstract

A transmission apparatus and transmitting method for signaling parameters of a preamble, and a reception apparatus and receiving method for decoding the preamble. The transmitting method includes generating, using processing circuitry of a transmission apparatus, a bootstrap symbol based on the parameters of the preamble. The bootstrap symbol is prefixed to a frame that includes the preamble using the circuitry. The bootstrap symbol is selected from a plurality of patterns. Further, the plurality of patterns represent at least a subset of predetermined combinations of the parameters of the preamble including an FFT (Fast Fourier Transform) size, a guard interval, a frequency domain displacement component of a SPP (Scattered Pilot Pattern) and a L1 mode.

Claims

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

generating, using processing circuitry of a transmission apparatus, a bootstrap symbol based on the parameters of the preamble; and

prefixing, using the processing circuitry, the bootstrap symbol to a frame that includes the preamble, wherein

the bootstrap symbol is selected from a plurality of patterns, and

the plurality of patterns represent at least a subset of predetermined combinations of the parameters of the preamble including an FFT (Fast Fourier Transform) size, a guard interval, a frequency domain displacement component of a SPP (Scattered Pilot Pattern) and a L1 mode.

2. The method of claim 1, wherein a time domain displacement component of the SPP for each of the subset of predetermined combinations is equal to one or another predetermined number.

3. The method of claim 1, wherein for each combination of the FFT size and the guard interval having a plurality of frequency domain displacement component values of the SPP that are multiples of each other in the predetermined combinations of the parameters of the preamble, the subset of the predetermined combinations only includes the lowest of the plurality of frequency domain displacement component values of the SPP for the respective combination of the FFT size and the guard interval.

4. The method of claim 1, wherein the FFT size, the guard interval and the SPP are signaled using a first subset of a predetermined number of bits and the L1 mode is signaled using a second subset of the predetermined number of bits.

5. The method of claim 1, wherein the FFT size of at least a first one of the plurality of patterns is 8K, the FFT size of at least a second one of the plurality of patterns is 16K, and the FFT size of at least a third one of the plurality of patterns is 32K.

6. The method of claim 1, wherein when a preamble only includes one symbol for a predetermined FFT size of the predetermined combinations, the plurality of patterns further represent at least one combination of the predetermined FFT size and the frequency domain displacement component of the SPP that is not associated with a particular guard interval.

7. The method of claim 1, wherein the frequency domain displacement in the predetermined combinations is predefined.

8. The method of claim 1, wherein the bootstrap symbol has a predetermined number of seven or eight bits.

9. The method of claim 1, wherein the number of L1 modes is four.

10. The method of claim 1, wherein the FFT size, the guard interval, and the frequency domain displacement component of the SPP in the subset of predetermined combinations are:

11. The method of claim 1, wherein the FFT size, the guard interval, and the frequency domain displacement component combinations in the predetermined combinations are

12. The method of claim 1, wherein the predetermined combinations includes at least one combination for each of a plurality of guard intervals, and at least one combination for each of the plurality of guard intervals is included in the subset of predetermined combinations.

13. A transmission apparatus, comprising:

a memory, and

circuitry configured to

generate a bootstrap symbol based on signaling parameters of a preamble; and

prefix the bootstrap symbol to a frame that includes the preamble, wherein

the bootstrap symbol is selected from a plurality of patterns, and

the plurality of patterns represent at least a subset of predetermined combinations of the parameters of the preamble including a FFT (Fast Fourier Transform) size, a guard interval, a frequency domain displacement component of a SPP (Scattered Pilot Pattern) and a L1 mode.

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

detecting, using processing circuitry of a reception apparatus, a bootstrap symbol; and

extracting, using the processing circuitry, signaling parameters of the preamble from the bootstrap symbol by referencing at least one look up table stored in a memory, wherein

the at least one look-up table includes a plurality of patterns representing at least a subset of predetermined combinations of the parameters of the preamble including an FFT (Fast Fourier Transform) size, a guard interval, a frequency domain displacement component of a SPP (Scattered Pilot Pattern) and a L1 mode.

15. The method of claim 14, further comprising:

decoding, using the processing circuitry, the preamble based on the extracted signaling parameters to obtain signaling data of a payload of the frame, and

decoding the payload using the signaling data of the payload.

16. The method of claim 14, wherein a time domain displacement component of the SPP for each of the subset of predetermined combinations is equal to one or another predetermined number.

17. The method of claim 14, wherein for each combination of the FFT size and the guard interval having a plurality of frequency domain displacement component values of the SPP that are multiples of each other in the predetermined combinations of the parameters of the preamble, the subset of the predetermined combinations only includes the lowest of the plurality of frequency domain displacement component values of the SPP for the respective combination of the FFT size and the guard interval.

18. The method of claim 14, wherein the FFT size, the guard interval and the SPP are signaled using a first subset of a predetermined number of bits and the L1 mode is signaled using a second subset of the predetermined number of bits.

19. The method of claim 14, wherein the FFT size of at least a first one of the plurality of patterns is 8K, the FFT size of at least a second one of the plurality of patterns is 16K, and the FFT size of at least a third one of the plurality of patterns is 32K.

20. The method of claim 14, wherein when a preamble only includes one symbol for a predetermined FFT size of the predetermined combinations, the plurality of patterns further represent at least one combination of the predetermined FFT size and the frequency domain displacement component of the SPP that is not associated with a particular guard interval.

21. The method of claim 14, wherein the frequency domain displacement in the predetermined combinations is predefined.

22. The method of claim 14, wherein the bootstrap symbol has a predetermined number of seven or eight bits.

23. The method of claim 14, wherein the number of L1 modes is four.

24. The method of claim 14, wherein the FFT size, the guard interval, and the frequency domain displacement component of the SPP in the subset of predetermined combinations are:

25. The method of claim 14, wherein the FFT size, the guard interval, and the frequency domain displacement component combinations in the predetermined combinations are

26. The method of claim 14, wherein the predetermined combinations includes at least one combination for each of a plurality of guard intervals, and at least one combination for each of the plurality of guard intervals is included in the subset of predetermined combinations.

39. The reception apparatus of claim 26, wherein the predetermined combinations includes at least one combination for each of a plurality of guard intervals, and at least one combination for each of the plurality of guard intervals is included in the subset of predetermined combinations.

27. A reception apparatus, comprising:

a memory; and

circuitry configured to

detect a bootstrap symbol,

extract signaling parameters of a preamble of a frame from the bootstrap symbol by referencing at least one look-up table stored in the memory, wherein

the at least one look-up table includes a plurality of patterns representing at least a subset of predetermined combinations of the parameters of the preamble including an FFT (Fast Fourier Transform) size, a guard interval, a frequency domain displacement component of a SPP (Scattered Pilot Pattern) and a L1 mode.

28. The reception apparatus of claim 27, wherein the circuitry is further configured to:

decode the preamble based on the extracted signaling parameters to obtain signaling data of a payload of the frame, and

decode the payload using the signaling data of the payload.

29. The reception apparatus of claim 27, wherein a time domain displacement component of the SPP for each of the subset of predetermined combinations is equal to one or another predetermined number.

30. The reception apparatus of claim 27, wherein for each combination of the FFT size and the guard interval having a plurality of frequency domain displacement component values of the SPP that are multiples of each other in the predetermined combinations of the parameters of the preamble, the subset of the predetermined combinations only includes the lowest of the plurality of frequency domain displacement component values of the SPP for the respective combination of the FFT size and the guard interval.

31. The reception apparatus of claim 27, wherein the FFT size, the guard interval and the SPP are signaled using a first subset of a predetermined number of bits and the L1 mode is signaled using a second subset of the predetermined number of bits.

32. The reception apparatus of claim 27, wherein the FFT size of at least a first one of the plurality of patterns is 8K, the FFT size of at least a second one of the plurality of patterns is 16K, and the FFT size of at least a third one of the plurality of patterns is 32K.

33. The reception apparatus of claim 27, wherein when a preamble only includes one symbol for a predetermined FFT size of the predetermined combinations, the plurality of patterns further represent at least one combination of the predetermined FFT size and the frequency domain displacement component of the SPP that is not associated with a particular guard interval.

34. The reception apparatus of claim 27, wherein the frequency domain displacement in the predetermined combinations is predefined.

35. The reception apparatus of claim 27, wherein the bootstrap symbol has a predetermined number of seven or eight bits.

36. The reception apparatus of claim 27, wherein the number of L1 modes is four.

37. The reception apparatus of claim 27, wherein the FFT size, the guard interval, and the frequency domain displacement component of the SPP in the subset of predetermined combinations are:

38. The reception apparatus of claim 27, wherein the FFT size, the guard interval, and the frequency domain displacement component combinations in the predetermined combinations are