Method and system of detecting duplicate SSID via self-scanning in WLAN
First Claim
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1. A method of detecting a duplicate service set identifier in a wireless local area network, the method comprising:
- generating a probe request packet by inserting a service set identifier of a service access point in the probe request packet in response to a scan request;
transmitting the probe request packet to neighbor access points;
receiving probe response packets;
detecting service set identifiers included in the probe response packets;
determining, by the service access point, a presence of a neighbor access point having a serviceset identifier that is the same as the service set identifier of the service access point in response to at least one of the detected service set identifiers of at least one of the neighbor access points being the same as the service set identifier of the service access point;
receiving beacons transmitted from the neighbor access points;
scanning the neighbor access points to acquire information of the neighbor access points;
detecting service set identifier fields of the received beacons;
determining whether any of the detected service set identifiers of the beacons is the same as the service set identifier of the service access point; and
transmitting a result of the determining to a user.
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Abstract
A method and a system of detecting a duplicate service set identifier (SSID) via self-scanning in a WLAN are provided. An access point (AP), when a scan request is given, generates a probe request packet by inserting a SSID of the AP thereinto, transmits the probe request packet to neighbor APs, receives probe response packets, in response to the probe request packet, from the neighbor APs, detects SSIDs from the probe response packets, and informs the presence of a neighbor AP, the SSID of which is the same as that of the AP, if any of the detected SSIDs is the same as the SSID of the AP.
22 Citations
13 Claims
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1. A method of detecting a duplicate service set identifier in a wireless local area network, the method comprising:
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generating a probe request packet by inserting a service set identifier of a service access point in the probe request packet in response to a scan request; transmitting the probe request packet to neighbor access points; receiving probe response packets; detecting service set identifiers included in the probe response packets; determining, by the service access point, a presence of a neighbor access point having a service set identifier that is the same as the service set identifier of the service access point in response to at least one of the detected service set identifiers of at least one of the neighbor access points being the same as the service set identifier of the service access point; receiving beacons transmitted from the neighbor access points; scanning the neighbor access points to acquire information of the neighbor access points; detecting service set identifier fields of the received beacons; determining whether any of the detected service set identifiers of the beacons is the same as the service set identifier of the service access point; and transmitting a result of the determining to a user. - View Dependent Claims (2, 3, 4, 5)
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6. A system of detecting a duplicate service set identifier in a wireless local area network, the system comprising:
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a service access point to generate a probe request packet by inserting a service set identifier of the service access point in the probe request packet in response to a scan request, to transmit the probe request packet to neighbor access points, to receive probe response packets from the neighbor access points, to detect service set identifiers of the probe response packets, and to determine a presence of a neighbor access point having a service set identifier that is the same as the service set identifier of the service access point in response to at least one of the detected service set identifiers of at least one of the neighbor access points being the same as the service set identifier of the service access point, wherein the service access point comprises; a packet transceiver to receive beacons transmitted from the neighbor access points; a packet collector to scan the neighbor access points to acquire information of the neighbor access points; a duplicate service set identifier detector to detect service set identifier fields of the received beacons, and to determine whether any of the detected service set identifiers of the beacons is the same as the service set identifier of the service access point; and a duplicate service set identifier result reporter to transmit a result of the determination by the duplicate service set identifier detector, from the duplicate service set identifier detector to a user. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13)
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Specification