Location Server Request Cancellation for Privacy and Load Management
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Solution Overview
Problem
In existing location tracking systems, when a location server cannot track a terminal's location, it cannot cancel the location tracking request, leading to inefficient use of communication networks and increased server load due to continuous requests from clients for location information.
Innovation Solution
A method where the location server checks privacy information and cancels the location information request by sending a cancellation message to the client if the terminal's privacy is set to 'non-disclosed', using protocols like MLP and RLP for communication with clients and other servers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the location server continues to process location requests from LCS clients, then the client can obtain location information when available, but the server load increases and network resources are wasted when tracking is impossible
Solution Approach 1:
The location server performs preliminary checks on terminal privacy information and tracking capability before processing location requests. When the server determines that location tracking is impossible or privacy is set to non-disclosed, it proactively sends a cancellation message to the LCS client, preventing future unnecessary requests and reducing ongoing server load and network resource consumption.
2Adaptability or versatility
If the LCS client continues to request location information without receiving responses, then the client maintains its request status, but unnecessary network traffic accumulates and server resources are consumed
Solution Approach 1:
The location server implements a feedback mechanism by sending cancellation messages to LCS clients when location tracking becomes impossible or privacy restrictions are applied. This feedback loop informs clients of the tracking status, allowing them to stop generating unnecessary requests, thereby reducing network traffic and energy consumption while maintaining client adaptability through proper status notification.
Data Source
AI summary
A method of canceling a location information request is disclosed, in which if a location server having received a location information request about a specific terminal from an external client is unable to forward location information of the terminal to the external client, the location server can cancel the location information request without a cancellation request from the external client. The location information request cancellation message may be selected among a Triggered Location Report message or a Triggered Location Reporting Stop Answer message or among a Standard Location Immediate Report message or a Standard Location Immediate Stop Answer message according to a location information request message.