Thanks
Peretz for bring up the issues and feedback from 802.16 members.
Please
refer to comment in-line.
Cheers,
-
Ronny
Ronny and 802.21 members:
1) During the last 802.16g meeting in Mont Tremblant, the attached "Fragmentation
of MIH-MSG" contributions was not accepted because it was stated that the
main reason the primary management connection is being used for MIH payload,
is its ability to fragment. Since the primary 802.16 flow can naturally fragment,
there is no need to add another fragmentation level.
>From 802.16-2004, section 6.3.2.3: MAC Management message on the Primary Management
Connection may be packed and/or fragmented.
[Ronny]
This issue is very much related to the issue #2 below. In MIH query/response
in un-authenticated state, there has always been possibility of DoS attack
from un-authenticated users who send hundreds and thousands of initial ranging
messages but in case of accessing information service, BS is allowing a
query from MSs. Of course if BS decides not to accept the query from the
MS then it is okay to MS because MS has not entered the network. Because
of this usage we have to change the usage of MOB_MIH-MSG. This shall be transported
not only primary connection but also over multicast connection. Primary connection
and broadcast connection are no problem because fragmentation is already
supported. Therefore, we need fragmentation in MAC message level.
2) MIH query/response in un- authenticated state was not submitted, as it
could be a security hole and be used for DoS attacks. I would like to socialize
it among us first. (The amount
of data exchanged in un- authenticated state must be very small, maybe just
MIH capabilities exchange)
[Ronny]
This is one of major benefits of information service, I believe. This has
been discussed tremendously in 802.11u. Because 802.21 information service
could be their perfect solution 802.11u accepted 802.21 Information service
in state 1 (un-authenticated state) as their Network Selection scheme. I think
this can be applied to 802.16 network as well. There is a working group called
Global Roaming Working Group in WiMAX. GRWG is looking for solution to similar
scenario. MIH query/response could be one of perfect solution to the network
selection of global roaming.
3) Submission deadline for the next 802.16g meeting in Dallas is Nov 11th.
[Ronny]
We need to reach the conclusion of the issues above first.
Lets decide what we want to do next, Peretz Feder
On 10/30/2006 6:23
PM, Subir Das wrote:
An audio only conference bridge will be available during the
ad hoc meeting (9am - 5pm US EST)
Call in: 732 336 6000
pin: 2483
regards,
-Subir
Gupta, Vivek G wrote:
So far the members that have confirmed participation include:
Chris Fitzgerald
Ulises Olvera
Srinivas Sreemanthula
Michael Williams
Ajay Rajkumar
Qiaobing Xie
Subir Das
Yoshi Ohba
David Famolari
Vivek Gupta
We would be starting at 9:00 AM on Tuesday, October 31.
Best Regards
-Vivek
-----Original Message-----
From: stds-802-21@LISTSERV.IEEE.ORG
[mailto:stds-802-21@LISTSERV.IEEE.ORG]
On Behalf Of Gupta, Vivek G
Sent: Thursday, October 05, 2006 7:30 PM
To: Subir Das; STDS-802-21@LISTSERV.IEEE.ORG
Subject: RE: 802.21 Ad Hoc meeting (Oct 31, Nov 1-2) details
As discussed during the September meeting we shall be holding the
802.21
ad hoc in New Jersey (Oct 31, Nov 1 and Nov 2). On Nov 2 (Thursday)
we
shall be finishing early to allow for travel.
Please let us know (myself and Subir) if you are planning on
attending
this ad hoc so that appropriate arrangements can be made (catering
etc.).
For all other questions please feel free to contact Subir Das at
Telcordia.
Many thanks to Telcordia and Toshiba for hosting this ad hoc.
Best Regards
-Vivek
-----Original Message-----
From: Subir Das [mailto:subir@research.telcordia.com]
Sent: Friday, September 29, 2006 4:16 PM
To: STDS-802-21@listserv.ieee.org
Cc: Gupta, Vivek G; Michael G. Williams
Subject: 802.21 Ad Hoc meeting (Oct 31, Nov 1-2) details
Dear Members,
Telcordia Technologies Inc. and Toshiba America Research are
pleased
to
host the
upcoming IEEE 802.21 ad hoc meeting at their facilities in
Piscataway,
New Jersey,
USA. Meeting details are attached herewith. Please feel free to
contact
either me or
Yoshi if you have any additional questions. If anyone needs an
invitation letter for visa
and other purposes, pl. send me a mail.
Regards,
-Subir