1. FEC Capability and Control
July 2001
FEC Capability and Control
Greg Chesson,
Aman Singla,
G. Chesson, A. Singla, Atheros

2. July 2001
This document contains editing instructions for adding FEC capability and control indications to the Tge draft P802.11e/D1.
G. Chesson, A. Singla, Atheros

3. Outline Assign an FEC capability bit
July 2001
Outline
Assign an FEC capability bit
ESTAs and EAPs learn whether FEC is possible
Assign an FEC bit in QoS Control field
Indicates whether frame is FEC-encoded
FEC-capable ESTA must optimistically apply FEC to all received frame headers
For frames >= 52 bytes (minimum size frame that could have FEC)
Must accurately validate the header
Retain No-ACK bit
No text changes needed.
G. Chesson, A. Singla, Atheros

4. July 2001
FEC Capability
Assign a bit for “FEC-Capable” from the set of reserved bits in the Capability Information Field defined in section
Adjust the text in section 7.5 which also assigns an FEC-Capable in the Capability Information Field (bit-11) so that sections 7.5 and are in agreement regarding the bit definition.
Add “FEC-Capable” to the list of subfields in the 3rd sentence of the first paragraph of clause
Add the following to clause :
“EAPs and ESTAs that can decode FEC frames as described in section 7.5 may set the FEC-Capable subfield in all frames that include the Capability Information field.”
G. Chesson, A. Singla, Atheros

5. July 2001
FEC Control
Edit Figure 14.5 replacing “rsrv” (in the Bit 15 column) by “FEC” –or- if Bit 15 is unavailable because of other changes to the QoS Control field, then assign a different bit for this function.
Add new section as follows:
FEC field
The FEC field is one bit in length and is set to 1 in those QoS Data frames that are FEC-encoded as specified in section 7.5.
G. Chesson, A. Singla, Atheros