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Re: [802.19] 802.19 Non-Transmitter Questions and Answers



Chen,

 

                I figured I would put in my two cents.

 

                As far as I understand it, once the database provides a list of channels the device can use any of those channels it wants to use.  It can make that choice anyway it likes.

 

Steve

 

From: Chen SUN [mailto:sun@xxxxxxxxxx]
Sent: Wednesday, October 27, 2010 7:15 PM
To: STDS-802-19@xxxxxxxxxxxxxxxxx
Subject: Re: [802.19] 802.19 Non-Transmitter Questions and Answers

 

Hi Jesse,

 

Thank you for the clarification.

 

For the scenario you mentioned, if the transmitter gets the list of available channels directly from the authorized database, and in addition it uses the optimal frequency plan from the non-transmitter as advices to its operation in TV band, that should be allowed.

 

Please let me know if I am wrong. Thank you very much again.

 

 

Best regards

Chen SUN
-------------------------------------------------------
Ubiquitous Mobile Communications Group

National Institute of Information and Communications Technology (NICT)
YRP-1 Bldg., 3-4 Hikarinooka, Yokosuka 239-0847, Japan
Tel: +81 46-847-5062   Fax: +81 46-847-5110

Email: sun@xxxxxxxxxx   OR   csun@xxxxxxxx

 

From: Jesse Caulfield [mailto:caulfield.jesse@xxxxxxxxx]
Sent: Wednesday, October 27, 2010 11:51 PM
To: STDS-802-19@xxxxxxxxxxxxxxxxx
Subject: [802.19] 802.19 Non-Transmitter Questions and Answers

 

Following today’s call I have made a few phone calls and re-reviewed the rules. Following are my answers to some of your questions. Please know the following represents my own personal interpretations of the rules and does not represent any form of legal opinion or advice.

 

Q: May a non-transmitting entity (i.e. a computer software) query a TV Bands database and receive a channel list?

 

A: YES. This is specifically allowed and anticipated according to the text in 47 CFR 15.713(j)(iii):

 

it is acceptable for a TV bands database to distribute lists of available channels by means other than contact with TVBDs to provide list of channels for operation

 

Furthermore, there is no restriction on the information a non-transmitter may request. Specifically and for example, a non-transmitter may request a spectrum information at any location and for any time (e.g. past/present/future), as described in 47 CFR 15.715(e):

 

Database administrators may allow prospective operators  of TV bands devices to query the database and determine whether there are vacant channels at a particular location.

 

Note however that Databases are not required to provide channel lists to a non-transmitting entity.

 

Q: May a transmitting entity (e.g. fixed or mode II device) provide its channel list to a non-transmitting entity?

 

A: YES. This is not discussed in the rules, however it was anticipated that channel lists may be collected from transmitters and analyzed for network planning and management purposes.

 

Q: Is the following scenario allowed?

 

Step 1) A non-transmitter receives a channel list(s) from a Database to develop an optimal frequency plan.

Step 2) The non-transmitter sends an optimal frequency plan to a transmitter(s)

Step 3) A transmitter(s) then communicate with a Database to verify the “optimal” frequency plan is valid or that a desired frequency is available

 

A: Most likely NO. The intention is that transmitters get their channel lists exclusively and directly from an authorized Database.

 

I hope this is helpful to the discussion. Best regards,

--

Jesse Caulfield

Key Bridge Global LLC

1600 Tysons Blvd.,  Suite 450

McLean, VA 22102