[STDS-802-16-MOBILE] Please clarify section 7.8.4.1.1 from P80216e/D8

["venkateshwarlu.v" <venkateshwarlu.v@REDPINESIGNALS.COM>]

Hi all,

I have been looking at the P802.16e/d8 specifications and got a doubt on Encryption notes given in the document, related to 8-bit rollover counter functionality.

 

Copied from standard page Number- 234

NOTE—When we start to deal with a new PDU we have a new frame number and therefore reinitialize the counter.

When the frame number reaches 0x000000 (from 0xFFFFFF), we increment ROC.

 

From the above Notes:

1- Whenever there is a new PDU, how it's possible to have a new frame number?

2- If we re-initialize the counter for every PDU, when this counter will be incremented?

3- When to increment the ROC.

 

I would really appeciate, if some one could clarify this.

 

Regds,

Venkat