Re: [STDS-802-16-MOBILE] OFDMA Preamble
While on the subject of preambles, can someone explain why the standard
lists 114 of them (not 113, as there is a zero index case) and yet there
are only 96 interpretations for them, i.e. that there are 18 cases where
the associated cell id and Segment are duplicates of other cases in
Table 309, e.g. Index 96 (page 561) and Index 0 (page 553).
And, like the original questioner, why so many: surely there is no cell
planning requirement on quite so many preambles.
Regards
David
-----Original Message-----
From: owner-stds-802-16-mobile@LISTSERV.IEEE.ORG
[mailto:owner-stds-802-16-mobile@LISTSERV.IEEE.ORG] On Behalf Of Yossi
Segal
Sent: 14 March 2005 17:49
To: STDS-802-16-MOBILE@LISTSERV.IEEE.ORG
Subject: Re: [STDS-802-16-MOBILE] OFDMA Preamble
Hi Alok,
The preambles in the Standard are optimized for PAPR, and were generated
by a computer software.
I don't think there is a way to generate them by their parameters.
Regards
Yossi Segal
Runcom Technologies
-----Original Message-----
From: owner-stds-802-16-mobile@LISTSERV.IEEE.ORG
[mailto:owner-stds-802-16-mobile@LISTSERV.IEEE.ORG] On Behalf Of Alok
Sent: Monday, March 14, 2005 12:20 PM
To: STDS-802-16-MOBILE@LISTSERV.IEEE.ORG
Subject: [STDS-802-16-MOBILE] OFDMA Preamble
Hi,
In the 16e standard there are 113 preambles for each FFT mode. This
will require a significant amount of memory at the SS. Is there a means
to generate the preamble based on the segment no. and IDCell, in which
case the storage requirements can be reduced.
There are contributions in the WG to generate preambles using PN
sequence and Walsh codes, are the current preambles generated using a
similar structure?
Regards
Alok
RedPine Signals