Re: [STDS-802-16] Regarding Band AMC--Mapping
Lalit:
seems only 1x6 and 2x3 (bins x symbols) are supported in spec
802.16Revd/D5 ?
(pls refer to table 269 for AAS-DLFP2 definition)
best regards,
Hongmei SUN
-----Original Message-----
From: owner-stds-802-16@listserv.ieee.org
[mailto:owner-stds-802-16@listserv.ieee.org] On Behalf Of Lalit Kotecha
Sent: Thursday, November 04, 2004 5:26 AM
To: STDS-802-16@listserv.ieee.org
Subject: Re: [STDS-802-16] Regarding Band AMC--Mapping
I completely agreewith Peiying.
Also, I think Panyuh gave example for different combinations of bins and
symbols for construncting a sub-channel consisits of 6 bins, is for
explaination purpose only. There has been discussions about supporting
some combinations ONLY like 2x3, 3x2, 1x6 (binsxsymbols). 6x1 is not
possible as all bins needs to be part of the same band. Does anyone know
final outcome what combinations we support????
Regards
Lalit
--- Peiying Zhu <pyzhu@NORTELNETWORKS.COM> wrote:
> Hi, Panyuh:
>
> The name "AMC subchannel" is quite confusing. "AMC" is usually
> referred as "Adaptive Modulation and Coding", which are exploited for
> all permutation schemes. Shall we change the name to something like
> "Sub-band sub-chanalization, i.e., SBSC", which is more consistent
> with PUSC, FUSC.
>
> Regards,
>
> Peiying
> -----Original Message-----
> From: owner-stds-802-16@listserv.ieee.org
> [mailto:owner-stds-802-16@listserv.ieee.org] On Behalf Of Panyuh Joo
> Sent: Wednesday, November 03, 2004 3:15 AM
> To: STDS-802-16@listserv.ieee.org
> Subject: Re: [STDS-802-16] Regarding Band AMC--Mapping
>
>
> Dear Hongmei Sun,
>
> The reason of the following description exist is for easier
> understanding the concept to the band.
> "AMC subchannel consists of 6 contiguous bins in a same band."
> And because the statement does not restrict the use of 6 contiguous
> bins within one symbol, one may use 4 bin in first symbol and the
> other 2 bin in the second symbol. If someone uses the abbreviation on
> this structure as "4:2" structures of AMC subchannel. Then the
> possible alternate definition of the AMC subchannel could be 4:2 or
> 3:3 or 2:4 or 1:1:1:1:1:1. etc.
> Maybe the word "contiguous" give some wrong sense of instincts. If
> just forget the nuance of the word "contiguous" as continuous in
> frequency domain, just read it as Contiguous bin in Band. Then we may
> bend the thoughts as well as the words.
> And also please just do not confuse by the concept of the Band. It
> just gives you the concept of the AMC subchannelization. And it is not
> used for BAND AMC MAPPIING procedure by itself. The mapping of the
> data PDU is aligned only with definition of subchannel.
> I still do not see any mis-description in the original statement in
> the specs.
> And regarding to the DL PUSC, I think there are some mis-understanding
> when you read the spec., it would be appreciated if you can revisit
> the spec and read it carefully. I will do it too. If I found the same
> problems, I will comeback with the answer. But currently, I do not
> found any fault in the spec.
>
> Hope this may help U.
> Panyuh Joo
>
>
>
>
> _____
>
> From: owner-stds-802-16@listserv.ieee.org
> [mailto:owner-stds-802-16@listserv.ieee.org] On Behalf Of Sun, Hongmei
> Sent: Wednesday, November 03, 2004 4:07 PM
> To: STDS-802-16@listserv.ieee.org
> Subject: Re: [STDS-802-16] Regarding Band AMC--Mapping
>
> Panyuh,
>
> sorry, but I'm still confused about this even after your explanation.
> As you said, 4 Bins make one Band, and 6 Bins make one subchannel. So
> doesn't this hint that each AMC subchannel must exist across Band?
> (My
> understanding is: for each subchannel: 4 bins are from 1st Band, the
> other 2 bins are from 2nd Band. Of course, these 6 bins are
> contiguous.)
>
> In addition,from my understanding, maybe PUSC DL permutation scheme is
> an exception case in aspect of subchannel size, where each subchannel
> has 24 tones but not 48 tones.
>
> Pls feel free to revise me if my understanding is not right.
>
>
> Hongmei SUN
>
> CTL, Intel
>
>
> _____
>
> From: owner-stds-802-16@listserv.ieee.org
> [mailto:owner-stds-802-16@listserv.ieee.org] On Behalf Of Panyuh Joo
> Sent: Wednesday, November 03, 2004 2:31 PM
> To: STDS-802-16@listserv.ieee.org
> Subject: Re: [STDS-802-16] Regarding Band AMC--Mapping Hi, Varma and
> All, Because one Band only got 4bins and 4 Bin only can make 32 data
> subcarriers
> + 4 pilot subcarriers. Any subchannel shoud have at least 48
> tones(subcarriers), if we do not restrict the definition of AMC
> subchannel into one band. than any AMC subchannel can be exist accross
> the Band.
> So, the meaning of "AMC subchannel consists of 6 contiguous bins in a
> same band" ==> one AMC subchannel should be confined with in the same
> band. This definition would help the system exploits the Multi user
> diversity.
> I hope this explanation would help you.
> Panyuh Joo
>
>
>
>
>
> _____
>
>
>
> --------
>
>
> Panyuh Joo Ph.D.
> Global Standards & Research Team
> Telecommunication R&D Center
> Telecommunication Network
> SAMSUNG ELECTRONICS CO., LTD
> TEL: 82-31-279-5096
> FAX: 82-31-279-5130
> Mobile : 82-16-9530-5096
> panyuh@samsung.com <mailto:panyuh@samsung.com>
>
> _____
>
>
>
> ------- Original Message -------
> Sender : varma indukuri<varma.ivs@gmail.com> Date : 2004-11-03 14:46
> Title : [STDS-802-16] Regarding Band AMC--Mapping Hi all,
>
> Section8.4.6.3(P80216-REVd_D5):: Optional permutations for AAS and AMC
> subchannels.
>
> A bin was defined as the set of adjacent 9 subcarriers with pilot in
> the middle as in Fig:238. But I couldn't understand the meaning of
>
> "A group of 4 rows of bins is called a band. AMC subchannel consists
> of 6 contiguous bins in a same band."?????
>
> Can any one help me in this regard.
>
> Regards
> varma ivs
>