Marianna,
Yes, we can speak about M.1450 next week.
I am quite aware that 802.16 can be used in bands below 11 GHz. However
the ITU Radio Regulations are not technology neutral.
I presume that you are familiar with Res.229 from WRC-2003? It
mandates the use of the technologies in M.1450 in portions of the LE 5 GHz band.
I would expect that adding 802.16h would not be a one meeting task in ITU-R
WP5A. Based on current meeting schedules, and no strong objections from
administrations, it could likely be done by 2011.
Regards,
Mike
From: Mariana Goldhamer
[mailto:marianna.goldhammer@xxxxxxxxxxxx]
Sent: Wednesday, July 08, 2009 12:17
To: Shellhammer, Steve; Mike Lynch; STDS-802-19@xxxxxxxxxxxxxxxxx
Subject: RE: [802.19] Link to 802.16h CA doc
Mike,
Equipment based on 802.16 can be used in LE bands below 11GHz,
including the 5GHz band, subject to regulations. The regulations are technology
agnostic, i.e. are specified powers, masks and radar sequences to be detected.
802.16-2005 has introduced messages to support the Radar detection.
The exact detection procedures are vendor specific, same as in 802.11.
In Europe, 5.47-5.725GHz, is required, starting with EN 301 893
V.1.4.1, a Media Access Protocol to implement the spectrum sharing with other
devices in the band. 802.16h has the ability to share the spectrum with other
802.16h-based systems or with Bursty systems (like 802.11), such that it will
satisfy this requirement.
Regarding the up-date of M.1450, it is an interesting idea, we
should speak about this next week.
Regards,
Mariana
From: Shellhammer, Steve
[mailto:sshellha@xxxxxxxxxxxx]
Sent: Wednesday, July 08, 2009 6:24 PM
To: Mike Lynch; STDS-802-19@xxxxxxxxxxxxxxxxx
Cc: Mariana Goldhamer
Subject: RE: [802.19] Link to 802.16h CA doc
Mike,
I cannot speak about the 5GHz band. I do know that there is some interest
in the 3650MHz band in the US and there may also be Wi-Fi there.
Marianna can probably elaborate more.
Steve
From: Mike Lynch
[mailto:freqmgr@xxxxxxxxxxxxx]
Sent: Wednesday, July 08, 2009 6:36 AM
To: STDS-802-19@xxxxxxxxxxxxxxxxx
Subject: Re: [802.19] Link to 802.16h CA doc
Steve,
I’m curious why .16h has developed or is developing a
coexistence mechanism for the 5 – 6 GHz frequency band. There are specific
technologies in ITU-R Recommendation M.1450 that are to be used in the
unlicensed portions of that band. True, in some countries the rules governing
the 5.8 GHz portion could permit .16h.
Is there an intention to try and add .16h to M.1450 or is .16h
only intended for use at 5.8 GHz in those countries whose regulations permit
it? If the former then .16h will have to have a DFS or DFS like capability to
sense the non-RLAN systems that share the unlicensed band segments.
WRC-2003 established very clear requirements for RLAN use of the
5 GHz frequency band. DFS is not an optional requirement for coexistence in the
5250 – 5350 and 5470 – 5725 MHz portions of that frequency band.
Regards,
Mike
From: 강현덕 [mailto:henry@xxxxxxxxxx]
Sent: Tuesday, July 07, 2009 20:44
To: STDS-802-19@xxxxxxxxxxxxxxxxx
Subject: Re: [802.19] Link to 802.16h CA doc
FYI
This
document deals with coordinated coexistence mechanism called CX-CBP
(coordinated contention based protocol).
802.16h
(improved coexistence mechanisms for license-exempt operation) mainly consists of three different degignation (all in TDD mode)
1.
WirelessHUMAN (for 5~6GHz bands)
2.
WirelessMAN-CX (for bands below 11GHz subject to non-exclusive assignment)
3.
WirelessMAN-UCP (for bands below 11GHz subject to non-exclusive assignment)
CX-CBP
belongs to WirelessMAN-CX.
Uncoordinated
coexistence mechanism belongs to WirelessMAN-UCP.
Hyunduk
-----원본 메시지-----
From: "Shellhammer, Steve" <sshellha@xxxxxxxxxxxx>
From Date: 2009-07-08 오전 8:38:09
To: "STDS-802-19@xxxxxxxxxxxxxxxxx" <STDS-802-19@xxxxxxxxxxxxxxxxx>
Cc:
Subject: Link to 802.16h CA doc
Here
is the link to the 16h CA document,
Steve
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