Location Delta Threshold for Wireless Network Updates
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Solution Overview
Problem
Wireless communication networks face overwhelming processing demands and economic viability issues due to continuous location updates from mobile devices, which limits the effectiveness of location-based and presence-based services.
Innovation Solution
A system and method that determine a wireless device's current location and transmit updates only when the location differs by a predetermined geographical distance, using a location delta threshold (LDT) function to manage location and presence information transmission, allowing for configurable geo-fences and reducing unnecessary updates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If every mobile device transmits continuous location updates to the wireless network, then the network can accurately track subscriber location for location-based services, but the network becomes overwhelmed with processing demands and operational costs increase
Solution Approach 1:
The patent extracts and removes unnecessary location update transmissions by implementing a location delta threshold function. Instead of transmitting every location change, the system only transmits updates when the location change exceeds a predetermined threshold, thereby reducing network traffic while maintaining adequate location tracking accuracy for services.
Solution Approach 2:
The system applies partial action by selectively transmitting location updates only when necessary (when delta exceeds threshold) rather than continuously transmitting all location data. This partial transmission approach reduces network processing demands while still providing sufficient location information for location-based services to function effectively.
2Loss of information
If continuous location updates are transmitted from mobile devices, then complete location information is available for presence-based services, but network infrastructure costs and processing requirements become unsustainable
Solution Approach 1:
The patent extracts only the essential location information needed for presence-based services by filtering out redundant updates through the location delta threshold mechanism. This selective extraction maintains adequate presence information completeness while reducing network operational costs associated with processing excessive data.
Solution Approach 2:
The system employs partial action by transmitting location information only when changes exceed the predetermined threshold, rather than continuously transmitting all location updates. This approach maintains sufficient presence information for services while significantly reducing network operational costs and processing requirements.
3Speed
If location updates are transmitted frequently, then real-time location accuracy is maintained for services, but the number of network events and processing requirements become unmanageable
Solution Approach 1:
The patent extracts and removes excessive location update events by implementing the location delta threshold function. This filtering mechanism eliminates redundant frequent updates while retaining meaningful location changes, thereby reducing network event volume and simplifying infrastructure complexity.
Solution Approach 2:
The system applies partial action by selectively transmitting location updates only when the delta exceeds the threshold, rather than transmitting all frequent updates. This approach maintains adequate real-time location accuracy for services while reducing the number of network events to manageable levels.
Data Source
AI summary
A wireless device and method for providing location updates to a wireless network includes determining a current location of the wireless device, comparing the current location to a second location and transmitting a location update, including presence information, to the wireless network when the current location differs from the second location by at least a predetermined geographical distance. The predetermined geographical distance is determined in accordance with at least one of subscription information associated with the subscriber unit, including a subscription fee paid, an enabled service and a network state. The current location may be determined via GPS, wireless network based position determination or other method.