With devices, which use draft n technology, can they, later, be driver/software upgraded to the actual 802.11n standard?
This is highly dependent on the design of the chipset used in the devices. A chipset that attempts to extensively use fixed DSP technology to lower costs will be much less likely to be firmware upgradable than another chipset that implements more programmable DSP logic (possibly even performing functions such as channel estimation on a more powerful on-chip CPU). However, it is true that a chipset built to closely follow the 802.11n D2.0 draft (and including as many of the specified features as possible) is very likely to be close enough to the final 802.11n standard to permit firmware upgrades. Virtually all of the low-level functionality, including the critical 20/40 MHz interoperability requirements, are present in the D2.0 draft, and the 802.11n committee is fairly committed to maintaining this as close to the final form as possible. top What other exceptional benefits (in addition to throughput and range) will 802.11n bring to business users/infrastructure? The QoS functions in 80
