Apparatus and method for receiving data frames

Patent metadata

Field	Value
Publication number	US-10785777-B2
Application number	US-201816000696-A
Country	US
Kind code	B2
Filing date	Jun 5, 2018
Priority date	Apr 14, 2015
Publication date	Sep 22, 2020
Grant date	Sep 22, 2020

Abstract

Certain aspects of the present disclosure provide an apparatus for wireless communications. The apparatus includes a processing system configured to generate a frame comprising a preamble, a first header, and a second header, wherein the preamble and the first header are configured to be decoded by a first device operating according to a first protocol, the second header not being configured to be decoded by the first device, and wherein the preamble, the first header, and the second header are configured to be decoded by a second device operating according to a second protocol; and an interface configured to output the frame for transmission.

First claim

What is claimed is:

1. An apparatus for wireless communications, comprising:
an interface configured to receive a frame comprising a preamble, a first header, and a second header, wherein the preamble and the first header are configured to be decoded by a first device operating according to a first protocol, the second header not being configured to be decoded by the first device, and wherein the preamble, the first header, and the second header are configured to be decoded by a second device operating according to a second protocol, wherein the first protocol includes a first set of available modulation coding schemes (MCS) and the second protocol includes a second set of available modulation coding schemes (MCS), the first set of MCS being different than the second set of MCS, wherein a first set of header data for the first header and a second set of header data for the second header is modulated and coded using at least one of the MCS in the first set, wherein the frame further comprises a first payload data appended directly to the second header, wherein the first payload data of the frame is modulated and coded using the at least one of the MCS in the first set, wherein the frame further comprises a second payload data, and wherein the second payload data of the frame is modulated and coded using one of the MCS in the second set of MCS; and
a processing system configured to process at least a portion of the frame to recover the first and second payload data.

2. The apparatus of claim 1 , wherein the first payload data appended to the second header includes a particular quantity of data to allow the processing system to set up for processing the second payload data while processing the first payload data appended to the second header.

3. The apparatus of claim 1 , wherein the second header comprises information indicating a length of the first payload data and the second payload data for one or more channels associated with the reception of the frame.

4. The apparatus of claim 1 , wherein the frame includes an orthogonal frequency division multiplexing (OFDM) signal or a single carrier (SC) signal.

5. The apparatus of claim 4 , wherein the first header comprises a first set of header data indicating whether the frame includes the OFDM signal or the SC signal.

6. The apparatus of claim 1 , wherein the preamble comprises a first short training field (STF) and a first channel estimation field (CEF), wherein the frame further comprises a second short training field (STF) and a payload data.

7. The apparatus of claim 6 , wherein the second STF and the payload data of the frame are modulated on a single carrier.

8. The apparatus of claim 1 , further comprising:
at least one antenna; and
a receiver configured to receive the frame via the at least one antenna, wherein the apparatus is configured as a wireless node.

9. An apparatus for wireless communications, comprising:
an interface configured to receive a frame comprising a preamble, a first header, and a second header, wherein the preamble and the first header are configured to be decoded by a first device operating according to a first protocol, the second header not being configured to be decoded by the first device, and wherein the preamble, the first header, and the second header are configured to be decoded by a second device operating according to a second protocol, wherein the preamble comprises a first short training field (STF) and a first channel estimation field (CEF), wherein the frame further comprises a second short training field (STF) and a payload data, wherein the second STF and the payload data of the frame are modulated on a single carrier, and wherein the interface is configured to receive the first STF, the first CEF, the first header, and the second header of the frame in a time skewed manner via a plurality of channels, respectively; and
a processing system configured to process at least a portion of the frame to recover the payload data.

10. The apparatus of claim 9 , wherein the frame comprises a second channel estimation field (CEF), and wherein the second CEF of the frame is modulated on the single carrier.

11. The apparatus of claim 9 , further comprising:
at least one antenna; and
a receiver configured to receive the frame via the at least one antenna, wherein the apparatus is configured as a wireless node.

12. An apparatus for wireless communications, comprising:
an interface configured to receive a frame comprising a preamble, a first header, and a second header, wherein the preamble and the first header are configured to be decoded by a first device operating according to a first protocol, the second header not being configured to be decoded by the first device, and wherein the preamble, the first header, and the second header are configured to be decoded by a second device operating according to a second protocol, wherein the preamble comprises a first short training field (STF) and a first channel estimation field (CEF), wherein the frame further comprises a second short training field (STF) and a payload data, wherein the frame comprises a second channel estimation field (CEF), wherein the second CEF of the frame is modulated on a single carrier, and wherein the interface is configured to receive the second STF, the second CEF, and the payload data of the frame via a bonded channel comprising at least a portion of a plurality of channels, and wherein the second header comprises information specifying a number of the plurality of channels included in the bonded channel or information identifying a lowest frequency of the plurality of channels included in the bonded channel; and
a processing system configured to process at least a portion of the frame to recover the payload data.

13. The apparatus of claim 12 , wherein a first power level of the second STF, the second CEF, and the payload data is equal to or higher than a second power level of the first STF, the first CEF, the first header, and the second header.

14. The apparatus of claim 13 , wherein the second header comprises information indicating a power difference between the first power level and the second power level.

15. The apparatus of claim 13 , wherein the first header comprises information indicating a power difference between the first power level and the second power level, wherein the power difference information is not specified in the first protocol.

16. The apparatus of claim 12 , further comprising:
at least one antenna; and
a receiver configured to receive the frame via the at least one antenna, wherein the apparatus is configured as a wireless node.

17. An apparatus for wireless communications, comprising:
an interface configured to receive a frame comprising a preamble, a first header, and a second header, wherein the preamble and the first header are configured to be decoded by a first device operating according to a first protocol, the second header not being configured to be decoded by the first device, and wherein the preamble, the first header, and the second header are configured to be decoded by a second device operating according to a second protocol, wherein the frame further comprises a first payload data, wherein the first header and the second header include header data modulated and coded using a modulation coding scheme (MCS) specified in the first protocol, wherein the first payload data of the frame is modulated and coded using a first modulation coding scheme (MCS) specified in the second protocol, wherein the frame further comprises a third header having a same configuration as the second header, the

Assignees

• Qualcomm Inc

Inventors

• Eitan Alecsander Petru
• Sanderovich Amichai
• Basson Gal

Classifications

• H04W72/51 Primary

  based on terminal or device properties · CPC title

• H04W72/0453

  Resources in frequency domain, e.g. a carrier in FDMA · CPC title

• H04L5/0048

  Allocation of pilot signals, i.e. of signals known to the receiver (allocation of control signalling H04L5/0053; use of control signalling H04L5/0091) · CPC title

• H04L27/2602

  Signal structure · CPC title

• H04L69/22

  Parsing or analysis of headers · CPC title