WLAN roaming based on location
First Claim
1. In a wireless data communications system wherein mobile units become associated with access points, and wherein association between a mobile unit and an access point is changed as mobile units move within an area having a plurality of access points, and wherein selection of an access point for association with a mobile unit is made according to selection criteria including a plurality of selection parameters, and wherein said system includes arrangements for determining location of a mobile unit within said area, the improvement wherein said selection parameters include location of said mobile unit when there are a plurality of access points available for association with said mobile unit.
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Accused Products
Abstract
A wireless data communications system has mobile units which become associated with access points. Association between a mobile unit and an access point is changed as mobile units move within an area having a plurality of access points. Selection of an access point for association with a mobile unit is made according to selection criteria including a plurality of selection parameters. The system includes arrangements for determining location of a mobile unit within the area. The selection parameters include location of the mobile unit or direction of movement of the mobile unit when there are a plurality of access points available for association with the mobile unit.
92 Citations
9 Claims
- 1. In a wireless data communications system wherein mobile units become associated with access points, and wherein association between a mobile unit and an access point is changed as mobile units move within an area having a plurality of access points, and wherein selection of an access point for association with a mobile unit is made according to selection criteria including a plurality of selection parameters, and wherein said system includes arrangements for determining location of a mobile unit within said area, the improvement wherein said selection parameters include location of said mobile unit when there are a plurality of access points available for association with said mobile unit.
- 5. In a wireless data communications system wherein mobile units become associated with access points, and wherein association between a mobile unit and an access point is changed as mobile units move within an area having a plurality of access points, and wherein selection of an access point for association with a mobile unit is made according to selection criteria including a plurality of selection parameters, and wherein said system includes arrangements for determining direction of change of location of a mobile unit within said area, the improvement wherein said selection criteria includes direction of change of location of said mobile unit when there are a plurality of access points available for association with said mobile unit.
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8. In a wireless data communications system wherein mobile units within an area become associated with access points, and wherein said system includes arrangements for determining location of a mobile unit within said area, a method for avoiding collisions of packets transmitted by said mobile units to an associated access point, comprising assigning mobile units in a selected portion of said area to another access point.
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9. In a wireless data communications system wherein mobile units within an area become associated with access points, and wherein said system includes arrangements for determining location of a mobile unit within said area, a method for avoiding collisions of packets transmitted by said mobile units to an associated access point, comprising assigning mobile units in a first selected portion of said area to a first channel and assigning mobile units in a second selected portion of said area to a different channel.
Specification