Power-saving arrangement and method for mobile units in communications network
AssigneeSymbol Technologies, Inc.
InventorsFrederic Heiman, Patrick Pinard, Andrew Werback, Michael Shiba
Life of this patent
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AssigneeSymbol Technologies, Inc.
InventorsFrederic Heiman, Patrick Pinard, Andrew Werback, Michael Shiba
Estimating the term…
A communications network comprising a cellular local area wireless network includes a plurality of access points connected to a housed computer and each other, and a plurality of mobile units each mobile unit being arranged for association with an access point. The mobile units are arranged to periodically scan for and identify the most eligible access point for association on the basis of the criteria of best quality signal strength and loading factor. In order to identify when mobile units are being removed from a predetermined area, access points having directional antennae are situated adjacent exit points to detect when mobile units are in a vicinity. Each mobile unit may include paging facilities, including the capability of transmitting information in a coded form known both to the unit and to a host, and power-saving facilities.
An arrangement for maximizing battery life in each of a plurality of portable, battery-powered, mobile units, each of the mobile units being in wireless communication with a plurality of spaced-apart, stationary access points of a communications network, the arrangement comprising:
In a communications network including a plurality of spaced-apart stationary access points each of the access points being capable of wireless communication with portable, battery-powered, mobile units when within a working range from the access points, an arrangement for maximizing battery life in each of the mobile units, the arrangement comprising:
In a communications network including a plurality of spaced-apart stationary access points each of the access points being capable of wireless communication with portable, battery-powered, mobile units when within a working range from the access points, a method maximizing battery life in each of the mobile units, the method comprising the steps of:
Dependencies are inferred from the claim text.