System and Method of Adaptive Roaming for WLAN Clients
First Claim
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1. A wireless patient monitoring system, the system comprising:
- a plurality of wireless access points dispersed throughout a monitoring area wherein the plurality of access points are connected together through a network; and
a patient monitor including a WLAN wireless card, wherein the WLAN wireless card wirelessly connects the patient monitor to a first wireless access point of the plurality of wireless access points,wherein the WLAN wireless card scans the monitoring area and performs a signal quality analyses on the plurality of access points, and further wherein the WLAN wireless card goes into a roam mode when a signal quality of the first wireless access point is less than the signal quality of any of the analyzed plurality of access points.
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Abstract
The system and method of the present application improves the performance of a WLAN client by sensing the environment and dynamically adjusting roam trigger values. The system and method scans the WLAN area for access points (AP) and analyzes the signal quality of an AP based on a plurality of AP system parameters. If signal quality of the current AP is less than that of the AP that was scanned, then the WLAN card enters into a roaming mode in order to connect with the higher signal quality AP. If the signal of the current AP is greater, then a new scan is conducted after a predetermined amount of time.
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20 Claims
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1. A wireless patient monitoring system, the system comprising:
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a plurality of wireless access points dispersed throughout a monitoring area wherein the plurality of access points are connected together through a network; and a patient monitor including a WLAN wireless card, wherein the WLAN wireless card wirelessly connects the patient monitor to a first wireless access point of the plurality of wireless access points, wherein the WLAN wireless card scans the monitoring area and performs a signal quality analyses on the plurality of access points, and further wherein the WLAN wireless card goes into a roam mode when a signal quality of the first wireless access point is less than the signal quality of any of the analyzed plurality of access points. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of adaptive roaming in a wireless patient monitoring system, the method comprising:
executing a set of executable code stored in a storage medium with a processor, thus effectuating the following steps; wirelessly connecting a patient monitor with a WLAN wireless card to a first wireless access point of a plurality of wireless access points dispersed throughout a monitoring area, wherein the plurality of access points are connected together through a network; scanning with the WLAN wireless card the monitoring area; performing a signal quality analyses on the plurality of access points; and entering a roam mode with the WLAN wireless card when a signal quality of the first wireless access point is less than the signal quality of any of the analyzed plurality of access points. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. A wireless patient monitoring system, the system comprising:
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a plurality of wireless access points dispersed throughout a monitoring area, wherein the plurality of access points are connected together through a network; and a patient monitor, wherein the patient monitor wirelessly connects to a first wireless access point of the plurality of wireless access points, wherein the patient monitor scans the monitoring area and performs a signal quality analyses on the plurality of access points, and further wherein the patient monitor goes into a roam mode when a signal quality of the first wireless access point is less than the signal quality of any of the analyzed plurality of access points; and wherein when the patient monitor goes into the roam mode, the patient monitor connects to a second wireless access point having a highest signal quality. - View Dependent Claims (17, 18, 19, 20)
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Specification