Actively Scanning according to WLAN Regulatory Domain without first Passively Scanning
AssigneeResearch In Motion Limited
InventorSherif Abdel-Kader
Life of this patent
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Abstract
A wireless local area network (WLAN) client device determines the WLAN regulatory domain in which it is currently located by using information received via a non-WLAN wireless interface. Once the regulatory domain has been determined, a WLAN client device operating in the 2.4 GHz band, for example, an IEEE 802.11b/g client device, may actively scan on channels in the 2.4 GHz band where transmissions are permitted by the regulatory domain without first passively scanning on channels in the 2.4 GHz band.
Claims10
A wireless device comprising:
- a processor;
- a wireless local area network (WLAN) interface coupled to the processor;
- another wireless interface coupled to the processor;
- and
- a memory to store code which, when executed by the processor, determines a WLAN regulatory domain in which the device is currently located using information received via the other wireless interface, and which controls the WLAN interface to actively scan for wireless local area networks on channels in the 2.4 GHz band where transmissions are permitted in the WLAN regulatory domain without first passively scanning for wireless local area networks on channels in the 2.4 GHz band.
A method in a wireless device having a wireless local area network (WLAN) interface and another wireless network interface, the method comprising:
- using information received via the other wireless network interface to determine a WLAN regulatory domain in which the device is currently located;
- and
- actively scanning for wireless local area networks on channels in the 2.4 GHz band where transmissions are permitted in the WLAN regulatory domain, without first passively scanning for wireless local area networks on channels in the 2.4 GHz band.
Dependencies are inferred from the claim text.