Method and apparatus for indicating the presence of a wireless local area network by detecting energy fluctuations
First Claim
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1. A method, comprising:
- detecting (408) at least one energy fluctuation in a radio frequency (RF) signal associated with a wireless local area network (WLAN); and
indicating (422) the presence of the WLAN in response to the detection of the at least one energy fluctuation.
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Abstract
A method and apparatus for detecting the presence of a wireless local area network (WLAN) (104) detects at least one energy fluctuation in a radio frequency (RF) signal propagating in a WLAN frequency band and indicates the presence of a WLAN (104) in response to the detection of the at least one energy fluctuation.
114 Citations
25 Claims
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1. A method, comprising:
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detecting (408) at least one energy fluctuation in a radio frequency (RF) signal associated with a wireless local area network (WLAN); and
indicating (422) the presence of the WLAN in response to the detection of the at least one energy fluctuation. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. An apparatus, comprising:
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an energy detector (338) for detecting at least one energy fluctuation in a radio frequency (RF) signal associated with a wireless local area network (WLAN) (104); and
means for indicating the presence of a WLAN (104) in response to the detection of the at least one energy fluctuation. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. In a mobile device configured to communication with a wireless communication network and a wireless local area network (WLAN), an apparatus comprising:
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a first front end (202) for receiving an RF signal associated with the wireless communication network;
a second front end (204) for receiving an RF signal associated with the WLAN;
a first baseband circuit (206) for processing the RF signal received by the first front end;
a second baseband circuit (208) for processing the RF signal received by the second front end; and
a WLAN scanner (214) for detecting at least one energy fluctuation in the RF signal associated with the WLAN and for indicating the presence of the WLAN in response to the detection of the at least one energy fluctuation.
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Specification