Header check sequence

Header Sequence Number is basically a CRC of the MAC header. It shall be the reminder of the division (Modulo 2) by the generator polynomial multiplied by the content of the header excluding the HCS field.

The HCS can be a byte long (as in Wimax)^[1] or 16 bit for cable modems.^[2]

External links

^ [wirelessman.org/tgd/docs/80216d-03_01.pdf "Project 802.16d: Working Document (System Profiles for 2-11 GHz)"] (PDF). September, 2004. Retrieved 2007-10-29. {{cite web}}: Check |url= value (help); Check date values in: |date= (help)
^ [www.cablelabs.com/specifications/SP-RFI-I01-970326.pdf "SUPERCEDED Data-Over-Cable Interface Specifications, Radio Frequency Interface Specification"] (PDF). September, 2004. Retrieved 2007-10-29. {{cite web}}: Check |url= value (help); Check date values in: |date= (help)

[1] [wirelessman.org/tgd/docs/80216d-03_01.pdf "Project 802.16d: Working Document (System Profiles for 2-11 GHz)"] (PDF). September, 2004. Retrieved 2007-10-29. {{cite web}}: Check |url= value (help); Check date values in: |date= (help)

[2] [www.cablelabs.com/specifications/SP-RFI-I01-970326.pdf "SUPERCEDED Data-Over-Cable Interface Specifications, Radio Frequency Interface Specification"] (PDF). September, 2004. Retrieved 2007-10-29. {{cite web}}: Check |url= value (help); Check date values in: |date= (help)

[1]

[2]