802.11n draft 2 approved by IEEE working group
The second 802.11n, which is previously called draft 1.10, draft has been approved by the IEEE working group at their London meeting and will now be mailed to IEEE members for comments and then voting by the 400 people strong 802.11n committee.
There have been some major changes, mainly concerning the usage of the 40MhZ band which has been changed to support legacy devices, as these might have been confused due to the wider bandwidth. Other changes are allowing Bluetooth devices with WiFi to send a signal that Bluetooth does not want to accept anything on the 40MhZ channel, such devices are for example many common PDAs and smartphones like the iPhone.
Draft 2 is to be finalized by the end of March and a third draft by May, by which time the specifications should be stable. Final approval should be completed by October 2008.
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