AAL 1 operation
H
User info (e.g. PCM speech)
Payload
SAR-PDU
ATM cell
1
3
3
SAR-PDU header
(1 byte)
1
• CSI bit (can be used for transmitting timing information)
• Sequence number (modulo 8)
• CRC field (CRC check for first seven bits)
• Parity bit (parity check for SAR-PDU header only)
47 bytes (or less)