Conditional Location Retrieval in Mobile Networks
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Solution Overview
Problem
The increasing demand for location information in telecom services is putting a strain on radio air spectrum capacity and radio access network resources, as existing methods require active positioning measurements for each request, even when accurate location information is already available.
Innovation Solution
Implementing a method where the requesting service can specify conditions such as accuracy, age, and speed thresholds in the location determination request, allowing the network to determine if stored location information can be used instead of performing active measurements, thereby reducing the load on the network resources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If active location determination is performed for every location request, then location information accuracy is improved, but radio air spectrum capacity and radio access network resources are consumed excessively
Solution Approach 1:
The system performs preliminary action by storing location information in the HLR and VMSC before it is needed. When a location request arrives, the system first checks whether stored location information is available and meets the requested accuracy criteria before initiating active positioning measurements. This preliminary storage and checking mechanism avoids unnecessary active measurements while ensuring accurate location information is provided when needed.
Solution Approach 2:
The invention applies parameter changes by introducing an accuracy parameter in the location request that specifies the minimum accuracy level required. The system then compares this requested accuracy parameter against the accuracy of stored location information. Only when the stored information meets or exceeds the requested accuracy threshold does the system use it; otherwise, it performs active measurements. This parameter-based decision logic optimizes resource consumption while maintaining required accuracy.
2Quantity of substance
If stored location information is used when available, then radio spectrum and network resources are reduced, but location information may be outdated or insufficient for specific service requirements
Solution Approach 1:
The system introduces an accuracy parameter that serves as a threshold for determining when stored location information is sufficient. The requested accuracy parameter from the service application is compared against the accuracy of stored location data. This parameter-based evaluation ensures that stored information is only used when it meets the specific reliability requirements of the service, preventing both unnecessary measurements and inappropriate use of insufficient data.
Solution Approach 2:
The system implements feedback by evaluating the accuracy of stored location information against the requested accuracy parameter before use. This feedback mechanism ensures that location information is validated for suitability before being returned to the service application, maintaining reliability while optimizing resource usage.
3Measurement precision
If active positioning measurements are performed for every request, then current location accuracy is ensured, but MSC load and system processing overhead increase
Solution Approach 1:
The system performs preliminary action by pre-storing location information in the HLR and VMSC. When a location request arrives, the system first checks whether stored location information is available and meets the accuracy criteria before initiating active positioning measurements. This preliminary storage and checking mechanism significantly reduces MSC load by avoiding unnecessary active measurements while ensuring accurate location information is provided when needed.
Solution Approach 2:
The invention applies parameter changes by introducing an accuracy parameter in the location request that specifies the minimum accuracy level required. The system then compares this requested accuracy parameter against the accuracy of stored location information. Only when the stored information meets or exceeds the requested accuracy threshold does the system use it; otherwise, it performs active measurements. This parameter-based decision logic optimizes processing overhead while maintaining required accuracy.
Data Source
AI summary
The invention discloses a method for obtaining a location of mobile station connected in a mobile network where a request for the location contains a condition specifying if a location stored in the mobile network can be used. The condition comprises an expression regarding an accuracy threshold for the location. When the stored location does not meet the condition the mobile network actively determines the location of the mobile station. The location is reported back. The method can be applied in a Home Location Register in the network, in a Visiting Mobile Service Center or in both. The HLR contains location information for registered mobiles and the VMSC for connected mobiles.