Motorola RFS Series, System Reference Manual

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Switch Services
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provide accurate asset locationing information across multiple networks in real-time. This solution can also
be packaged as a locationing appliance.
5.8.2 SOLE - Smart Opportunistic Location Engine
SOLE is an on-board location engine using a combination of innovative algorithms to determine location
based on asset type. SOLE fuses the location information reported by several technologies into one seamless
environment to get more meaningful results.
SOLE helps locate assets (including rogues) including passive tags, semi-passive tags, active tags
(UWB,802.11, RFID etc) and MUs. SOLE returns the location of passive tags as seen by mobile RFID readers
(like a MC9090) by combining the 802.11 reader’s location with RFID antenna direction/location data.
Applications (users) inform SOLE (RF switch) about a facility map, location of infrastructure and zones. A zone
is an area of specific interest with respect to whenever an asset becomes visible or invisible in that area.
SOLE uses the following input variables as needed for the specific tag type calculating location:
• User configurations
• RSSI propagation based on facility layout and RF barriers as specified by the user
• Smart surroundings (fixed wireless devices such as printers, price verifiers, near me tags as installed in
the facility)
• Runtime RF environment
• The previous position of the tag
• TDoA
• AoA