IEEE 802.11d
802.11 is a set of
IEEE standards that govern wireless networking transmission methods. They are commonly used today in their
802.11a,
802.11b, and
802.11g versions to provide wireless connectivity in the home, office and some commercial establishments.
The
IEEE 802.11d standard is also referred to as the Global Harmonization standard. It is used in countries where systems using other standards in the
IEEE 802.11 family are not allowed to operate.
The standard defines
physical layer requirements to satisfy regulatory domains not covered by the existing standards. In the other regulatory domains, the allowed frequencies, allowed power levels, and allowed signal bandwidth may be different. The specification eliminates the need for designing and manufacturing country specific products.
Protocol operation
Enabling
IEEE 802.11d standard operation on the access point causes the AP to broadcast the
ISO country code for the country it is operating in as a part of its beacons and probe responses. If enabled, the client adjusts its frequencies, power levels and bandwidth accordingly. This is particularly well suited for systems that want to provide global Roaming.
See also
IEEE 802.11j*
The 802.11d-2001 Standard*
Status of the project 802.11dIEEE Task Group TGd
*
802.11d-2001-4-05-03 interpretation
