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[STDS-802-16] inconsistency in subchannel concatenation

Dear IEEE802.16 community,
I studied the 802.16-2004 and had a problem in understanding in chapter
"8.4.9.2 Encoding" the wording
of how to concatenate subchannels Table 318 upto 36 bytes.

To increase the efficiency of the TB-CC Encoder it makes sense to have
larger FEC blocks.
The chapter is not clear for me if this concatenation

-is done in ONE subchannel over timescale (Table 318-useful data payload for
A subchannel)
 by concatenating of different slot (e.g.3 symbols long) by each other

or

-if this is done in the frequency scale by concatention of subchannel (Table
315: Blocks of j subchannels)
 with a time duration of one slot (e.g.3 symbols long)

Please give me your feedback how to understand and maybe there is a
corrigendum in your mind
(which I could not find yet).

Thanks in advance
Kind Regards
Juergen Otterbach
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Alcatel SEL AG Research&Innovation
Abtl. ZFZ/AB
Juergen Otterbach
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D-70499 Stuttgart, Germany
Tel:    +49.711.821.32255
FAX:    +49.711.821.32453
Alcanet:     259.32255
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