Re: [STDS-802-16] Clarification on OFDMA subcarriers allocation and BTC in RevD4
Hi, Brian,
In my point view, the actual coding rate of some case is far away from the
2nd row in Table 282. Take a look at the 4th row, the data bytes 16 20 16
20, the coded bytes 24, so the actual coding rate 2/3,5/6,2/3,5/6, don't you
think they are far away from 1/2,3/4,1/2,3/4.
regards,
Jun WU
-----Original Message-----
From: Brian Banister [mailto:bbaniste@aha.com]
Sent: 2004?4?12? 8:34
To: Jun Wu
Subject: Re: [STDS-802-16] Clarification on OFDMA subcarriers allocation and
BTC in RevD4
The BTC is not exact rate. It should be close, though.
Regards,
Brian Banister
On Sat, Apr 10, 2004 at 02:21:54PM -0700, Jun Wu wrote:
> I have several questions about UL and DL subcarriers allocation. Does
anyone
> have a good answer?
> 1. In the Table 273, row 7 indicates "Nsubcarriers 24", row 9 indicates
> "Numbers of data subcarriers per subchannel 48", what is the difference
> between them? Which value (24 or 48) should be used to calculate the
> subcarriers(n,s) in equation 102.
> 2. In the 8.4.6.1.2.2.1 step 1, there are totally 120 clusters, they are
> divided into 6 major groups, but the 6 groups have only 60 clusters. Can
> anyone clarify this?
>
> The third question is about BTC:
> 3. In the Table 282, the second column should be "Encoding rate R=1/2",
but
> I found the coding rate of most case is not 1/2. Does anyone can explain
> this?
>
> Thanks in advance for your response.
> Jun Wu
> ZTE San Diego