Hi Mike,
The FCC is acting to update 15.247 Spread Spectrum rules next quarter, and will allow more data-centric modulations in ISM bands. Some might have noticed filings on Wi-LAN's appeal for OFDM in ISM bands ;-)
I believe one size does not fit all, and refrigerators, ranges, gas meters, etc. will not be on the same channel (time or frequency) as streaming multimedia.
Put another way, any company with Right-Of-Way to the home will want their box inside the home, providing something they can charge for.
We will have several home wireless networks, with client power consumption considerations forcing space (code division, frequency division, time division, space division) and power control differences.
The idea of a wireless USB ignores the three-dimensional aspects of wireless. It would be nice if the 5GHz Wireless Industry Advisory Group weighed in on 2.45GHz coexistence, as they were in the kitchen when the present situation was cooked up ;-)
In any case, all the big companies will bet on all the winning candidates, some early, some later.
As you can see in this email from Steve Shellhammer, chair of IEEE 802.15.2 (Bluetooth/802.11 coexistence), there are few announced (other than Mobilian/Nortel/Symbol) solutions to 2.45GHz coexistence...
>>All,
Several people have asked me if it is too late to submit a Coexistence Mechanism to the IEEE 802.15 Task Group 2. We are willing to receive additional submissions at the January meeting in Monterey. If you are interested in presenting in January, and you have not yet sent me a letter of intent, please email me informing me that you would like to present in January. I need to receive you letter (email) of intent by Friday December 15 in order to prepare the schedule for the January meeting.
<<
There is a significant interest in the Bluetooth group to make it a LAN (100mW option), but I think that IEEE 802.11 will evolve quickly enough to prevent Bluetooth LANs from being successful. ;-)
petere |
