SYSTEM AND METHOD FOR TRANSMITTING DATA PAYLOAD IN WB SC, AGGREGATE SC, DUPLICATE SC, OFDM TRANSMISSION FRAMES

• US 20160330738A1
• Filed: 04/25/2016
• Published: 11/10/2016
• Est. Priority Date: 05/07/2015
• Status: Active Grant

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Eitan, Alecsander
• Granted Patent: US 9,949,259 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H04L 1/0079 Formats for control data H04L1/16 takes precedence; training sequences H04L25/00 and H04L27/00
• CPC Class Codes: H04L 1/0083 Formatting with frames or packets; Protocol or part of protocol for error control
• CPC Class Codes: H04L 1/0084 Formats for payload data
• CPC Class Codes: H04L 27/2602 Signal structure
• CPC Class Codes: H04L 27/2603 Signal structure ensuring backward compatibility with legacy system
• CPC Class Codes: H04L 27/261 Details of reference signals
• CPC Class Codes: H04L 27/2646 using feedback from receiver for adjusting OFDM transmission parameters, e.g. transmission timing or guard interval length
• CPC Class Codes: H04L 27/32 Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
• CPC Class Codes: H04L 41/0896 Bandwidth or capacity management, i.e. automatically increasing or decreasing capacities flow or congestion control using dynamic resource allocation, e.g. in-call renegotiation, H04L47/76
• CPC Class Codes: H04L 5/0044 allocation of payload
• CPC Class Codes: H04W 72/0446 Resources in time domain, e.g. slots or frames

Abstract

An apparatus for wireless communications is disclosed. The apparatus includes a processing system configured to generate a frame having a preamble, a header, and a data payload, wherein the preamble, the header, and the data payload are decodable by a first device when operating according to a first protocol, wherein the preamble and the header are decodable by a second device when operating according to a second protocol, the data payload not being decodable by the second device when operating according to the second protocol; and an interface configured to output the frame for transmission.

Claims

1. An apparatus for wireless communications, comprising:

a processing system configured to generate a frame comprising a preamble, a header, and a data payload, wherein the preamble, the header, and the data payload are decodable by a first device when operating according to a first protocol, wherein the preamble and the header are decodable by a second device when operating according to a second protocol, the data payload not being decodable by the second device when operating according to the second protocol; and

an interface configured to output the frame for transmission.

2. The apparatus of claim 1, wherein the processing system is configured to generate the frame for transmission via a single channel.

3. The apparatus of claim 2, wherein the data payload of the frame for transmission via the single channel comprises at least one data block, wherein each of the at least one data block comprises a plurality of data symbols and a first guard interval comprising a sequence of symbols known to the first device.

4. The apparatus of claim 3, wherein a number of sequence symbols in the first guard interval is different than a number of sequence symbols specified according to the second protocol.

5. The apparatus of claim 4, wherein the number of sequence symbols is 32 or 128.

6. The apparatus of claim 1, wherein the processing system is configured to generate the data payload of the frame for transmission via a plurality of bonded channels.

7. The apparatus of claim 6, wherein the data payload of the frame for transmission via the plurality of bonded channels comprises at least one data block, wherein each of the at least one data block comprises a plurality of data symbols and a guard interval comprising a sequence of symbols known to the first device.

8. The apparatus of claim 7, wherein a number of the sequence symbols is a function of a number of bonded channels.

9. The apparatus of claim 8, wherein the number of bonded channels is two, and the number of sequence symbols in the guard interval is 256, 128 or 64.

10. The apparatus of claim 8, wherein the number of bonded channels is three, and the number of sequence symbols in the guard interval is 384, 192 or 96.

11. The apparatus of claim 8, wherein the number of bonded channels is four, and the number of sequence symbols in the guard interval is 512, 256 or 128.

12. The apparatus of claim 7, wherein a number of the data symbols in each of the at least one data block is a function of a number of bonded channels.

13. The apparatus of claim 12, wherein the number of bonded channels is two, and the number of data symbols in each of the at least on data block is 756, 896 or 960.

14. The apparatus of claim 12, wherein the number of bonded channels is three, and the number of data symbols in each of the at least on data block is 1152, 1408 or 1440.

15. The apparatus of claim 12, wherein the number of bonded channels is four, and the number of data symbols in each of the at least on data block is 1536, 1792 or 1920.

17. The apparatus of claim 1, wherein the processing system is configured to encode and modulate the data payload with one of a first set of MCS according to the first protocol, wherein the processing system is configured to encode and modulate the header with one of a second set of modulation coding schemes (MCS) according to the second protocol, and wherein the first set of MCS is different than the second set of MCS.

18. The apparatus of claim 17, wherein the first set of MCS comprises at least one of 64QAM, 64APSK, 128APSK, 256QAM, or 256APSK and is not a subset of the second set of MCS.

19. The apparatus of claim 17, wherein the first set of MCS comprises at least one of π

/2-QPSK with ⅞

code rate, π

/2-16QAM with a 13/16 code rate, π

/2-16QAM with a ⅞

code rate, π

/2-64QAM with a ⅝

code rate, π

/2-64QAM with a ¾

code rate, π

/2-64QAM with a 13/16 code rate, π

/2-64QAM with a ⅞

code rate, π

/2-64APSK with a ⅝

code rate, π

/2-64APSK with a ¾

code rate, π

/2-64APSK with a 13/16 code rate, π

/2-64APSK with a ⅞

code rate, π

/2-128APSK with a ¾

code rate, π

/2-128APSK with a 13/16 code rate, π

/2-128APSK with a ⅞

code rate, π

/2-256QAM with a ¾

code rate, π

/2-256QAM with a 13/16 code rate, π

/2-256QAM with a ⅞

code rate, π

/2-256APSK with a ¾

code rate, π

/2-256APSK with a 13/16 code rate, or π

/2-256APSK with a ⅞

code rate and is not a subset of the second set of MCS.

20. The apparatus of claim 17, wherein the first set of MCS comprises π

/2-BPSK with ½

code rate, π

/2-BPSK with ⅝

code rate, π

/2-BPSK with ¾

code rate, π

/2-BPSK with 13/16 code rate, π

/2-QPSK with ½

code rate, π

/2-QPSK with ⅝

code rate, π

/2-QPSK with ¾

code rate, π

/2-QPSK with 13/16 code rate, π

/2-QPSK with ⅞

code rate, π

/2-16QAM with a ½

code rate, π

/2-16QAM with a ⅝

code rate, π

/2-16QAM with a ¾

code rate, π

/2-16QAM with a 13/16 code rate, π

/2-16QAM with a ⅞

code rate, π

/2-64QAM with a ⅝

code rate, π

/2-64QAM with a ¾

code rate, π

/2-64QAM with a 13/16 code rate, π

/2-64QAM with a ⅞

code rate, π

/2-64APSK with a ⅝

code rate, π

/2-64APSK with a ¾

code rate, π

/2-64APSK with a 13/16 code rate, π

/2-64APSK with a ⅞

code rate, π

/2-128APSK with a ¾

code rate, π

/2-128APSK with a 13/16 code rate, π

/2-128APSK with a ⅞

code rate, π

/2-256QAM with a ¾

code rate, π

/2-256QAM with a 13/16 code rate, π

/2-256APSK with a ¾

code rate, π

/2-256APSK with a 13/16 code rate, or π

/2-256APSK with a ⅞

code rate.

21. The apparatus of claim 1, wherein the processing system is configured to apply a spectrum mask to the frame, and wherein the interface is configured to output the masked frame for transmission

22. The apparatus of claim 21, wherein the spectrum mask comprises corners that are a function of the number of bonded channels.

23. The apparatus of claim 22, wherein the number of bonded channels is two, and wherein the corners comprise first corners that are respectively ±

2.02 GHz from a center frequency of the bonded channels at 0 dBc relative power, second corners that are respectively ±

2.4 GHz from the center frequency at −

17 dBc relative power, third corners that are respectively ±

5.4 GHz from the center frequency at −

22 dBc relative power, and fourth corners that are respectively ±

6.12 GHz from the center frequency at −

30 dBc relative power.

24. The apparatus of claim 22, wherein the number of bonded channels is three, and wherein the corners comprise first corners that are respectively ±

3.1 GHz from a center frequency of the bonded channels at 0 dBc relative power, second corners that are respectively ±

3.6 GHz from the center frequency at −

17 dBc relative power, third corners that are respectively ±

8.1 GHz from the center frequency at −

22 dBc relative power, and fourth corners that are respectively ±

6.12 GHz from the center frequency at −

30 dBc relative power.

25. The apparatus of claim 22, wherein the number of bonded channels is four, and wherein the corners comprise first corners that are respectively ±

4.18 GHz from a center frequency of the bonded channels at 0 dBc relative power, second corners that are respectively ±

4.8 GHz from the center frequency at −

17 dBc relative power, third corners that are respectively ±

10.8 GHz from the center frequency at −

22 dBc relative power, and fourth corners that are respectively ±

12.24 GHz from the center frequency at −

30 dBc relative power.

26. The apparatus of claim 1, wherein the processing system is configured to generate the frame for transmission via a plurality of channels bonded in time but separated in frequency.

30. The apparatus of claim 26, wherein at least two of the plurality of channels are separated in frequency by at least another channel available for transmission, wherein the interface is configured to transmit the frame for transmission only via the at least two of the plurality of channels.

31. The apparatus of claim 1, wherein the processing system is configured to generate the frame for transmission via a plurality of orthogonal frequency division multiplexing (OFDM) bonded channels.

32. The apparatus of claim 31, wherein a number of data subcarriers for transmitting the data payload is a function of a number of the OFDM bonded channels.

33. The apparatus of claim 32, wherein the number of data subcarriers is 732, 734, or 735 if the number of the OFDM bonded channels is two.

34. The apparatus of claim 32, wherein the number of data subcarriers is 1128, 1133, or 1134 if the number of the OFDM bonded channels is three.

35. The apparatus of claim 32, wherein the number of data subcarriers is 1524, 1533, or 1534 if the number of the OFDM bonded channels is four.

36. The apparatus of claim 31, wherein a number of pilot subcarriers for transmitting pilot signals is a function of a number of the OFDM bonded channels.

37. The apparatus of claim 36, wherein the number of pilot subcarriers is 36, 37, or 40 if the number of the OFDM bonded channels is two.

39. The apparatus of claim 36, wherein the number of pilot subcarriers is 56, 57, or 62 if the number of the OFDM bonded channels is three.

40. The apparatus of claim 36, wherein the number of pilot subcarriers is 76, 77, or 84 if the number of the OFDM bonded channels is four.

41. The apparatus of claim 31, wherein the plurality of OFDM bonded channels comprise two adjacent channels with a frequency gap therebetween as defined by the second protocol, wherein a number of subcarriers within the frequency gap is 418, 419, or 420.

43. The apparatus of claim 1, wherein the processing system is configured to generate the frame for transmission via a bonded channel and a single channel, wherein the bonded channel is separated in frequency from the single channel by at least another channel available for transmission, wherein the interface is configured to output the frame for transmission only via the bonded channel and the single channel.

16. (canceled)

27-29. -29. (canceled)

38. (canceled)

42. (canceled)

44. A method for wireless communications, comprising:

generating a frame comprising a preamble, a header, and a data payload, wherein the preamble, the header, and the data payload are decodable by a first device when operating according to a first protocol, wherein the preamble and the header are decodable by a second device when operating according to a second protocol, the data payload not being decodable by the second device when operating according to the second protocol; and

outputting the frame for transmission.

45-130. -130. (canceled)

131. A wireless node, comprising:

at least one antenna;

a processing system configured to generate a frame comprising a preamble, a header, and a data payload, wherein the preamble, the header, and the data payload are decodable by a first device when operating according to a first protocol, wherein the preamble and the header are decodable by a second device when operating according to a second protocol, the data payload not being decodable by the second device when operating according to the second protocol; and

an interface configured to output the frame for transmission via the at least one antenna.