Method of packet classification for 802.11ax
View Patent ↗Techniques for packet classification for IEEE 802.11ax capable devices are provided. Specifically, methods are presented, that when taken alone or together, provide a device or group of devices with a means for determining the modulation and coding scheme used, through robust bit indication in a WLAN 802.11ax frame.
1. A device, comprising:
a memory;
a transceiver, the transceiver configured to:
receive a plurality of physical layer frames;
a processor, the processor cooperating with the memory and configured to:
retrieve information from at least one of the physical layer frames, wherein the information retrieved further includes at least one of an HE-SIG1 and HE-SIG2 field;
read a robust packet bit, wherein a same value of the robust packet bit resides in each of the HE-SIG1 and the HE-SIG2 fields, the robust packet bit allowing differentiation between legacy modulation and On-Off Keying (OOK) modulation; and
process the data in the at least one of the physical layer frames based at least in part on the robust packet bit and a constellation rotation.
2. The device of claim 1 , wherein the information retrieved from the physical layer frame includes at least a preamble and payload, wherein the preamble includes an L-SIG field.
3. The device of claim 2 , wherein a LENGTH field within the L-SIG field indicates the use of High Efficiency (HE) Wireless Local Area Network (WLAN) transmission.
4. The device of claim 1 , wherein the robust packet bit is a zero or 1.
5. The device of claim 1 , wherein the robust packet bit indicates the use of On-Off Keying (OOK) modulation.
6. The device of claim 1 , wherein the robust packet bit indicates the use of eight times repetition coding (Rep8).
7. The device of claim 1 , wherein the robust packet bit indicates the use of legacy coding and modulation.
8. The device of claim 1 , wherein if the at least one of the HE-SIG1 and the HE-SIG2 fields are absent, transmission is deferred.
9. A method comprising:
receiving, by a transceiver, a plurality of physical layer frames;
retrieving, by a processor, information from at least one of the physical layer frames, wherein the information retrieved further includes at least one of an HE-SIG1 and HE-SIG2 field;
reading, by the processor, a robust packet bit, wherein a same value of the robust packet bit resides in each of the HE-SIG1 and the HE-SIG2 fields, the robust packet bit allowing differentiation between legacy modulation and On-Off Keying (OOK) modulation; and
processing, by the processor, the data in the at least one of the physical layer frames.
10. The method of claim 9 , wherein the information retrieved from the physical layer frame includes at least a preamble and payload, wherein the preamble includes an L-SIG field.
11. The method of claim 10 , wherein a LENGTH field within the L-SIG field indicates the use of High Efficiency (HE) Wireless Local Area Network (WLAN) transmission.
12. The method of claim 9 , wherein the robust packet bit is a zero or 1.
13. The method of claim 9 , wherein the robust packet bit indicates the use of On-Off Keying (OOK) modulation.
14. The method of claim 9 , wherein the robust packet bit indicates the use of eight times repetition coding (Rep8).
15. A non-transitory computer readable medium having instructions thereon that when executed by at least one processor of a device perform a method comprising:
receiving, by a transceiver, a plurality of physical layer frames;
retrieving, by the processor, information from at least one of the physical layer frames, wherein the information retrieved further includes at least one of an HE-SIG1 and HE-SIG2 field;
reading, by the processor, a robust packet bit, wherein a same value of the robust packet bit resides in each of the HE-SIG1 and the HE-SIG2 fields, the robust packet bit allowing differentiation between legacy modulation and On-Off Keying (OOK) modulation; and
processing, by the processor, the data in the at least one of the physical layer frames.
16. The non-transitory medium of claim 15 , wherein the information retrieved from the physical layer frame includes at least a preamble and payload, wherein the preamble includes an L-SIG field.
17. The non-transitory medium of claim 15 , wherein the robust packet bit is a zero or 1.
18. The non-transitory medium of claim 15 , wherein the robust packet bit indicates the use of On-Off Keying (OOK) modulation.
19. The non-transitory medium of claim 15 , wherein the robust packet bit indicates the use of eight times repetition coding (Rep8).
20. A method for constructing a physical layer frame, the physical layer frame comprising:
creating, by a processor, a preamble, wherein the preamble includes an L-SIG field;
determining, by the processor, a modulation and a coding scheme used;
creating, by the processor, at least one of an HE-SIG1 and HE-SIG2 fields, wherein each of the HE-SIG1 and the HE-SIG2 fields contain a robust packet bit of the same value, the robust packet bit allowing differentiation between legacy modulation and On-Off Keying (OOK) modulation;
creating, by the processor, a payload field; and
appending, by the processor, the at least one of the HE-SIG1 and the HE-SIG2 fields and the payload field to the preamble.
21. The method of claim 20 , wherein the modulation scheme includes On-Off Keying.
22. The method of claim 20 , wherein the coding scheme includes eight times repetition coding.