Dear all,
I would share further consideration on unlicensed band usage model.
In fact, if there is geographical information regarding spectrum usage, all technologies could be used even for current 16e. This has happened in some application relating to environmental surveillance system.
When we consider the coverage of unlicensed band , it could also be large as WAN/RAN or be small as PAN/LAN similar as WLAN and Bluetooth in ISM band. If there is geographical information, I guess all 802 wireless technologies are applicable.
Another point is the price. The main difference between unlicensed and licensed band is price. The unlicensed band is more cheap than licensed band. In India, we may more agree price first if the Letter is to India administration. If the price of com requires 100USD, I guess there is still no market in India. By the way, collisions has high probability occurring in the unlicensed band like WLAN and Bluetooth. The spectrum efficiency would be much poor. High price with poor performance is hard to attract end users. End users may still consider WiFi, low price with acceptable performance.
I would support to escalate from IEEE 802.22 to IEEE 802 level. In my point of view, some combination of IEEE 802 technologies can support.
Further comment to PAR of 1900.7, a good strategy for P1900 is to reuse existing PHY and MAC instead of new PHY and MAC especially when WiFi only costs couple dollars. Leveraging existing specification or market proven technology would be more helpful for the success of P1900 or DySPAN. Even P1900.7 have a specific PHY and MAC, without chip vendor, the future of this standard is still doubtable.
Best regards,
Zheng Yan-Xiu
From: Kiernan, Brian G [mailto:Brian.Kiernan@INTERDIGITAL.COM]
Sent: Thursday, February 10, 2011 4:11 AM
To: STDS-802-16@LISTSERV.IEEE.ORG
Subject: Re: [STDS-802-16] Fwd: 802.22 Letter to the WPC for 470 - 698 MHz Operation (India)
Mike,
I’m glad to hear that, as it fits directly with my main premise, that the spectrum not be technology specific. I assume the letter has been modified appropriately to remove the 802.22 references.
Brian
From: Mike Lynch [mailto:freqmgr@SBCGLOBAL.NET]
Sent: Wednesday, February 09, 2011 12:59 PM
To: STDS-802-16@LISTSERV.IEEE.ORG
Subject: Re: [STDS-802-16] Fwd: 802.22 Letter to the WPC for 470 - 698 MHz Operation (India)
Brian and Reza,
Based on the discussion on yesterday’s conference call the letter is to lobby for more technology neutral spectrum and not touch on the licensed or unlicensed use. Administrations will implement these bands as they feel is best for their requirements.
While many 802 technologies are used in an unlicensed mode that is not always the case. For example in some administrations the use of 802.11 in the 2.4 GHz band requires users to have a license. So it doesn’t seem useful to label some 802 technologies as “unlicensed” only as that may imply that they should not be permitted where an administration require users to obtain a license.
Regards,
Mike
From: Arefi, Reza [mailto:reza.arefi@INTEL.COM]
Sent: Wednesday, February 09, 2011 11:11
To: STDS-802-16@LISTSERV.IEEE.ORG
Subject: Re: [STDS-802-16] Fwd: 802.22 Letter to the WPC for 470 - 698 MHz Operation (India)
I support Brian’s comment below.
Regards,
Reza
From: Kiernan, Brian G [mailto:Brian.Kiernan@INTERDIGITAL.COM]
Sent: Wednesday, February 09, 2011 11:58 AM
To: STDS-802-16@LISTSERV.IEEE.ORG
Subject: Re: [STDS-802-16] Fwd: 802.22 Letter to the WPC for 470 - 698 MHz Operation (India)
If the intent of the letter is to lobby for unlicensed operation in that frequency band (TV White Spaces), then it should NOT be limited to just 802.22, but should encompass any 802 unlicensed technology aimed at that spectrum to include 802.11af, 802.19, or even 802.16h. From both a market and regulatory perspective, making a band technology specific is too limiting and is counter to the direction of where the industry (and most regulators) are heading. The EC should change any references to “802.22” to something like “IEEE 802 unlicensed technologies”.
Brian
From: Roger B. Marks [mailto:r.b.marks@ieee.org]
Sent: Wednesday, February 09, 2011 3:37 AM
To: STDS-802-16@LISTSERV.IEEE.ORG
Subject: [STDS-802-16] Fwd: 802.22 Letter to the WPC for 470 - 698 MHz Operation (India)
Please let me know if you have any comments on this letter.
Date: 8 February 2011 10:26:34 PM PST
Subject: 802.22 Letter to the WPC for 470 - 698 MHz Operation (India)
The 802.22 Working Group would like to submit the following letter
to the Wireless Planning and Co-ordination (WPC) Advisor in India through Indian Institute of Technology (IIT) Bombay. This letter was discussed during the 802.18 telecon held on Tuesday, Feb. 8th.
We (802.22) would like to endorse the IIT Bombay proposal for license-exempt use in the 470 – 698 MHz spectrum in India. IITs are the premier Engineering institutes in India. IIT academics are very well respected all around the world and they have been known to work closely with the Indian Govt. in the advisory role. The IIT-Bombay proposal has been attached for your reference.
Please review the letter and let us know your comments if any by Monday, Feb. 14th COB.
Chair, IEEE 802.22 Standard Working Group
130 Daniel Webster Highway, Mail Stop 2350
Work: (603)885 2621, Mobile: (603)-809-0459