At Command Support; Ieee 802.11D And Additional Regulatory Domains; Odin-W2 Ieee 802.11D Implementation Description - u-blox ODIN-W2 Series Datasheet

1.6

AT command support

The ODIN-W2 series modules support AT commands as described in the ODIN-W2 AT Commands Manual [1].
See also the s-center software, which is an easy-to-use tool from u-blox for evaluating, and configuration of
u-blox Short Range modules. The s-center tool is available for download on the www.u-blox.com website.
1.7

IEEE 802.11d and additional regulatory domains

The ODIN-W2 series modules support IEEE 802.11d. IEEE 802.11d is an amendment to the IEEE 802.11
specification that adds support for "additional regulatory domains". IEEE 802.11d allows ODIN-W2 based
devices to self-configure and operate according to the regulations of the country in which they operate. Its
parameters include country name, channel quantity and maximum transmission level. The country information
feature simplifies the creation of 802.11 wireless access points and client devices that meet the different
regulations enforced in various parts of the world.

1.7.1 ODIN-W2 IEEE 802.11d implementation description

When ODIN-W2 is used as a Wi-Fi station, the scan is used to detect which regulatory domain it is currently in.
Passive scan is used for channels that are not available in all regulatory domains. The device supports the
following three domains, where WORLD means all channels that are supported both by FCC, ETSI and most
other countries in the world:
•
WORLD
•
FCC
•
ETSI
See Table 3 for detailed information on channels that are supported in the different regulatory domains. The
state transition diagram below (Figure 2) describes the algorithm for selecting the current regulatory domain.
Scan complete
Two or more ETSI AP found and
no FCC AP found
ETSI
Scan complete
FCC found
Figure 2: ODIN-W2 series IEEE 802.11d state transition diagram
Initial regulatory domain is WORLD. At start up a scan is initiated to detect beacons containing country
information IEs.
If at least one scan result contains country information indicating FCC and no country information indicates ETSI,
then the regulatory domain is set to FCC.
If at least two scan results contain country information indicating ETSI and no country information indicates FCC,
then the regulatory domain is set to ETSI.
UBX-14039949 - R05
Entry start scan
Do start scan every hour
WORLD
Scan complete
No or both FCC and
ETSI AP found
WORLD-FINAL
Advance Information
ODIN-W2 series - Data Sheet
Scan complete
FCC AP found and no ETSI AP found
FCC
Scan complete
ETSI found
Functional description
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