Re: [STDS-802-16] interleaver example in 802.16-2004 not correct ?

[Itzik Kitroser <itzikk@RUNCOM.CO.IL>]

Hi,

In the original COR1 document (D5) there was a fix to this section, apparently it did not make it to 802.16e-2005 version (another item which was missed by the reviewers of this section....). Anyway, try to give a look at P80216_Cor1_D5 draft (should be available at the following link:

http://www.wirelessman.org/pubs/80216_Cor1.html)

 

Regards,

Itzik Kitroser.

 

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From: Arthur Liew [mailto:geniusbb@GMAIL.COM]
Sent: Monday, September 04, 2006 5:58 PM
To: STDS-802-16@LISTSERV.IEEE.ORG
Subject: [STDS-802-16] interleaver example in 802.16-2004 not correct ?

Dear All,

I am building 802.16e baseband model. I have tried 
to test each module one by one and I have found that the example given in pg 619 
of 802.16-2004 is probably wrong ?  I have tried  Ncpc = number coded 
bits per subcarrier = QPSK = 2, while Ncbps = total bits to be transmitted after 
CC encoding & punctuing = 24 x 8 = 192 bits. Using Ncpc = 2 and Ncbps = 192 
does not give me the correct results, but interestingly, using Ncpc = 16QAM = 4 
and Ncbps = 192 give me the correct answer. Is the example sin 802.16-2004 wrong 
? Is there any corrected version ? I have not been able to find the correction 
in latest document 802.16-2005. Would anyone be able to give me some 
clarification ?

Regards,
Art.