Dear All:
Hope that everyone submitted your comments on time and
managed to get some rest. Unfortunately, we still have some unfinished business
here. We need to resume our efforts for harmonization. Can you please kindly let me know if you have submitted comments/contributions
related to preamble?
Here is a summary of the last CC. I apologize that it takes
longer than usual to get this back to you, I also had to catch the deadline.
Attendees: due to a larger number of
participants, I only captured the company names here.
Adacom, Alvarion; Beceem; Broadband Mobile Technologies; ETRI;
Hanaro Telecom; Hexagon; Intel; KT; LGE; Motorola; Nortel; TI; Proxim;
Qualcomm; Runcom; SOLiD Technologies; Samsung; Sprint; ZTE
We discussed the following items:
1. Status update of sequence harmonization
Jeff took an action to evaluate various sequence performance in
terms of PAPR, cross correlation, complexity. He indicated that the results on
PAPR and cross correlation were reported in two previous contributions: http://wirelessman.dyndns.org/cgi-script/CSUpload//upload/temp%252edb/80216e_Comments_on_Preamble_Design.ppt and http://wirelessman.dyndns.org/cgi-script/CSUpload//upload/temp%252edb/80216e%2d04_PreambleAdhoc_temp001.pdf. If you have not
read the documents and are interested in the results, please review them before
the next CC. Please voice your opinions whether you agree the evaluation. Jeff
also mentioned that there were not enough Email discussions, I encourage
people, especially those with contributions, get discussion going.
There was a discussion on complexity: what is the threshold? Jeff
indicated that he does not have enough details on the process of
synchronization and cell search using the current preamble design. Zion gave an explanation.
Jeff needed more details. Zion
and Jeff agreed to have an offline discussion on the details.
The original assumption on sequence evaluation is that it will be
done in parallel of structure design. However, Sriram pointed it out that the
complexity evaluation depends on the structure design. We ended it up to
proceed to the agenda item 2.
Anand presented the idea of time domain sequence for
synchronization rather than frequency domain sequence. There was a long
discussion on this. Naftali requested to have a straw poll on the time domain
sequence, no one supported the proposal.
People agreed to continue the sequence harmonization in the
coming week.
2. Status update of the draft proposal on
preamble structure
Wen updated the proposal based on the agreement of Aug. 13's
CC.
Zion raised the issue on the "common Sync symbol is mandatory for
BS". He said that he was temporary dropped out of the call during the Aug.
13 CC, therefore missed that part of discussion. Avi also asked to
clarification on "minatory" after I sent the meeting summary. Several
other members stated that "common Sync symbol" must be mandatory to
be useful. This issues was not resolved during the meeting.
Wonil raised the issue on OMI support and using fixed
location for the common sync symbol. The current thinking is to use it as post
amble. Some members thought that from post amble, it is not always possible to
know the exact location of legacy preamble without further search in the TDD
mode. Everyone agrees that it is better to use the fixed location, we need to
find a good position.
Due to these issues raised and the time limitation, I
recommended that we do not submit the proposal as the ad-hoc harmonized
contribution, rather as a joint proposal. We agreed to continue the ad-hoc
discussion and update it in the reply comment, hopefully by then, we can reach
the consensus.
3. Next CC
We did not have time to set up another CC. I propose two options
here:
Option 1: one CC on Monday Aug. 23 --- 7:00-9:00 am USA pacific time, 11 pm for Seoul,
5 pm for TelAviv, 10 am for Ottawa
Option 2: one CC on Thursday Aug. 26 -- 20:00-22:00 USA pacific time, 12:00 for Seoul,
6:00 for TelAviv, 23:00 for Ottawa
This leaves us another slot on Monday morning if needed.
Please let me know your preference.
The conference bridge is:
1+(613)7650160
Pass code: 3958089#
Regards,
Peiying
-----Original Message-----
From: Zhu, Peiying [CAR:DP13:EXCH]
Sent: Monday, August 16, 2004
10:33 PM
To: STDS-802-16@listserv.ieee.org
Subject: Re: [STDS-802-16]
[PREAMBLE] Aug 16 Preamble Ad-Hoc group CC rem inder