On 26 Jul 2013, at 15:25, Vincent Chen <[email protected]> wrote: > In the ETSI / OFCOM model, is Slave a "role" or a static / certified property > of the device?
I would tend towards the latter. The ETSI draft standard contains this definition: "slave WSD: WSD that is only able to communicate with other WSDs, when under the control of a master WSD" and this: "master WSD: geo-located WSD that is able to communicate directly with a TVWSDB and with WSDs" > Consider the use case: > - A portable device has location capability, but is not yet on a network > - It acts like a Slave in this phase to contact a Master in order to get > spectrum > - It now can establish network connection to the Database directly using the > spectrum > > In the ETSI / OFCOM model: > 1. Can it now ask the Database directly for spectrum? because it may be able > to operate at higher power? I believe that this is *not* permitted. A slave device that has geolocation capability MAY ask for device specific RF parameters, but MUST do so through its Master. OFCOM's specification explicitly prohibits a (master) WSD from talking to the WSDB over the managed UHF spectrum, it needs to use some other form of link. kind regards, Ray _______________________________________________ paws mailing list [email protected] https://www.ietf.org/mailman/listinfo/paws
