| Thread Links | Date Links | ||||
|---|---|---|---|---|---|
| Thread Prev | Thread Next | Thread Index | Date Prev | Date Next | Date Index |
|
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 National Institute of Information and Communications Technology
(NICT) Email: sun@xxxxxxxxxx
OR csun@xxxxxxxx From: Jesse Caulfield
[mailto:caulfield.jesse@xxxxxxxxx] 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 |