EHT-SIG detection with various diversity schemes
A method of communication includes duplication of a first field of a first content channel into a third field in a third content channel and applying a modulation and coding scheme (MCS) to only one of the first field and the third field. The first content channel is a first portion of a frame and the third content channel is a third portion of the frame. Duplication of a second field of a second content channel into a fourth field in a fourth content channel and applying a modulation and coding scheme (MCS) to only one of the second field and the fourth field. The second content channel is a second portion of a frame and the fourth content channel is a fourth portion of the frame. The first content channel and the second content channel form a first group of content channels and the third content channel and the fourth content channel form a second group of content channels. The method then transmits the frame.
1. A method of communication comprising:
duplicating a first field of a first content channel into a third field in a third content channel, the first content channel being a first portion of the frame, the third content channel being a third portion of the frame;
applying a first diversity scheme to only one of the first field or the third field;
duplicating a second field of a second content channel into a fourth field in a fourth content channel, the second content channel being a second portion of the frame, the fourth content channel being a fourth portion of the frame, the first content channel and the second content channel forming a first group of content channels, the third content channel and the fourth content channel forming a second group of content channels;
applying a second diversity scheme to only one of the second field or the fourth field; and
transmitting the frame.
2. The method of claim 1 wherein the first diversity scheme is applied to the first field and the second diversity scheme is applied to the second field, and the first diversity scheme and the second diversity scheme are the same.
3. The method of claim 1 wherein the first diversity scheme is applied to the third field and the second diversity scheme is applied to the fourth field, and the first diversity scheme and the second diversity scheme are the same.
4. The method of claim 1 further comprising:
applying a third diversity scheme, different from the first diversity scheme, to the one of the first field or the third field to which the first diversity scheme is not applied; and
applying a fourth diversity scheme, different from the second diversity scheme, to the one of the second field or the fourth field to which the second diversity scheme is not applied.
5. The method of claim 1 wherein the first content channel, the second content channel, the third content channel, and the fourth content channel are 20 MHz content channels compatible with an 802.11 wireless standard, and the frame is an 80 MHz channel compatible with the 802.11 wireless standard.
6. The method of claim 1 wherein the first field and the third field are extremely high throughput signal (EHT-SIG) fields.
7. The method of claim 1 wherein the second field and the fourth field are extremely high throughput signal (EHT-SIG) fields.
8. The method of claim 1 wherein the first diversity scheme or the second diversity scheme is a dual sub carrier modulation (DCM) applied to the third content channel and the fourth content channel.
9. The method of claim 1 wherein an MCS 5 option has been selected.
10. The method of claim 1 wherein the first diversity scheme or the second diversity scheme is a tone mapper applied to the QAM symbols of the third content channel and the fourth content channel.
11. The method of claim 1 wherein the first diversity scheme or the second diversity scheme is a different binary convolutional coding (BCC) puncturing pattern applied to the third content channel and the fourth content channel while an MCS 4 option has been selected.
12. A communications device for transmitting a wireless frame comprising:
a framer for producing a frame;
a radio unit for transmitting the frame; and
processing electronics causing the communications device to:
duplicate a first field of a first content channel into a third field in a third content channel, the first content channel being a first portion of the frame, the third content channel being a third portion of the frame;
apply a first diversity scheme to only one of the first field or the third field;
duplicate a second field of a second content channel into a fourth field in a fourth content channel, the second content channel being a second portion of the frame, the fourth content channel being a fourth portion of the frame, the first content channel and the second content channel forming a first group of content channels, the third content channel and the fourth content channel forming a second group of content channels;
apply a second diversity scheme to only one of the second field or the fourth field; and
transmit the frame.
13. The communications device of claim 12 wherein the first content channel, the second content channel, the third content channel, and the fourth content channel are 20 MHz content channels compatible with an 802.11 wireless standard, and the frame is an 80 MHz channel compatible with the 802.11 wireless standard.
14. The communications device of claim 12 wherein the first field and the third field are extremely high throughput signal (EHT-SIG) fields.
15. The communications device of claim 12 wherein the second field and the fourth field are extremely high throughput signal (EHT-SIG) fields.
16. The communications device of claim 12 wherein the first diversity scheme or the second diversity scheme is a dual sub carrier modulation (DCM) is applied to the third content channel and the fourth content channel.
17. The communications device of claim 12 wherein an MCS 5 option has been selected.
18. The communications device of claim 12 wherein the first diversity scheme or the second diversity scheme is a tone mapper applied to the QAM symbols of the third content channel and the fourth content channel.
19. The communications device of claim 12 wherein the first diversity scheme or the second diversity scheme is a different binary convolutional coding (BCC) puncturing pattern applied to the third content channel and the fourth content channel while an MCS 4 option has been selected.