Deferred Location Request Handling via Unique Reference Number
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Solution Overview
Problem
Existing Location Service (LCS) systems face challenges in uniquely differentiating and processing Deferred Location Requests for the same target User Equipment (UE) across different Requesting-Gateway Mobile Location Centers (R-GMLCs), leading to potential collisions and operational inefficiencies.
Innovation Solution
Assigning a unique Reference Number by the Home-Gateway Mobile Location Center (H-GMLC) for each Deferred Location Request ensures that different requests for the same target UE can be distinctly identified and processed, resolving collision issues and improving operational efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the LCS system processes Deferred Location Requests without unique differentiation, then the system structure remains simple, but request collisions occur and processing reliability deteriorates
Solution Approach 1:
The patent segments the request identification by introducing a unique Reference Number that is divided into two parts: a first part identifying the LCS Client and a second part identifying the target UE. This segmentation allows the system to differentiate between multiple Deferred Location Requests for the same UE from different clients, preventing collisions while maintaining manageable system structure through standardized reference number formatting.
Solution Approach 2:
The patent adds a new dimensional aspect to request identification by introducing the Reference Number as an additional identifier beyond the existing UE identifier. This dimensional expansion enables the system to distinguish requests across multiple clients simultaneously, transforming a one-dimensional identification system into a multi-dimensional one that resolves collision issues without fundamentally redesigning the core processing architecture.
2Adaptability or versatility
If the system uses existing UE identifiers for request differentiation, then the system remains simple, but it cannot distinguish requests from different LCS Clients for the same UE
Solution Approach 1:
The Reference Number is segmented into two distinct parts: the first part identifies the LCS Client and the second part identifies the target UE. This segmentation enables the system to differentiate requests across both client and UE dimensions simultaneously, providing versatile request differentiation capability while keeping the identifier structure organized and manageable through clear partitioning.
Solution Approach 2:
The Reference Number serves multiple functions: it identifies the LCS Client, identifies the target UE, and provides unique differentiation between requests. By making the reference number multi-functional, the patent avoids the need for separate identifier structures for each function, thereby achieving high adaptability without proportionally increasing system complexity.
3Productivity
If Deferred Location Requests are processed without unique reference numbers, then the processing flow remains simple, but operational efficiency deteriorates due to collisions
Solution Approach 1:
The system performs preliminary action by assigning a unique Reference Number to each Deferred Location Request before processing. This pre-identification step ensures that requests are properly differentiated from the outset, preventing collisions during subsequent processing stages and improving operational efficiency without requiring complex collision resolution mechanisms later in the workflow.
Solution Approach 2:
The Reference Number serves as a feedback mechanism that tracks the status of each Deferred Location Request through the processing flow. By incorporating the reference number in subsequent processing steps (such as when the UE becomes available), the system can efficiently match completed requests with their corresponding references, improving productivity through accurate request tracking and completion confirmation.
Data Source
AI summary
A method for handling a Deferred Location Request, including: a Location Service (LCS) Client initiating a Deferred Location Request for a target UE to a Requesting-Gateway Mobile Location Center (R-GMLC), the R-GMLC forwarding the Deferred Location Request to a Home-GMLC (H-GMLC), the H-GMLC assigning a Reference Number for the Deferred Location Request, and sending the Deferred Location Request to a Core Network (CN) via a Visited-GMLC (V-GMLC); when a deferred event occurs, the CN submitting a target UE location report and the Reference Number to the H-GMLC via the V-GMLC, the H-GMLC returning the target UE location report to the LCS Client via the R-GMLC. Since the H-GMLC is the home GMLC of the target UE, the Reference Number assigned by the H-GMLC may ensure that different Deferred Location Requests initiated for a same target UE may be exclusively differentiated, such that Deferred Location Requests for the same target UE initiated by the LCS Client through different R-GMLCs may be normally processed, which effectively solves the conflict in the handling process of an LCS and satisfies the demands of service operations.


