Table 3 Generic MAC header fields
From: New combined WiMAX/DSRC infrastructure design for efficient vehicular networking
Name | Length (bits) | Description |
|---|---|---|
CI | 1 | CRC Indicator |
|  |  | 1 = CRC is appended to the end of the PDU |
|  |  | 0 = No CRC is used |
CID | 16 | CID |
EC | 1 | Encryption Control |
|  |  | 1 = Payload is encrypted |
|  |  | 0 = Payload is not encrypted |
EKS | 2 | Encryption key sequence |
ESF | 1 | Extended subheader |
|  |  | 1 = Using extended subheader |
|  |  | 0 = Extended subheader absent |
HCS | 8 | Header check sequence |
HT | 1 | Header type (use 0 for generic header) |
|  |  | 1 = Bandwidth request header |
|  |  | 0 = Generic MAC header |
LEN | 11 | Length |
| Â | Length of the MAC PDU in bytes (including header and CRC, if used) | |
Rsv | 1 | Reserved for future use. Set to 0 |
Type | 6 | Flags to indicate the type of payload attached |