Early Data Transmission for Periodic Location Reporting
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Solution Overview
Problem
Current location solutions for user equipment (UE) in wireless networks, particularly for IoT devices, are resource-intensive, leading to high battery consumption and network resource drainage due to the need for frequent signaling connections and location measurements.
Innovation Solution
Implementing Early Data Transmission (EDT) to allow UEs to report location events without establishing a signaling connection to the core network, using Non-Access Stratum (NAS) Transport messages and Release Assistance Indications (RAI) to minimize connection duration and resource usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional location solutions are used for periodic and triggered location reporting, then location accuracy and reliability are improved, but UE power consumption and network resource usage increase significantly
Solution Approach 1:
The patent extracts the essential location reporting function from the traditional full signaling connection procedure. By using EDT, the UE can send location reports without establishing a complete signaling connection to the core network, thereby maintaining location reporting reliability while significantly reducing power consumption and network resource usage.
Solution Approach 2:
The patent applies partial action by implementing a simplified connection procedure that performs only the necessary steps for location reporting (using EDT) rather than the full signaling connection procedure. This partial approach maintains sufficient reliability for location reporting while reducing the excessive power consumption and network resource usage associated with complete connection establishment.
2Reliability
If traditional location solutions are used for periodic and triggered location reporting, then location service functionality is improved, but network resource utilization increases significantly
Solution Approach 1:
The patent extracts the location reporting functionality from the resource-intensive full signaling connection procedure. By utilizing EDT, the network can receive location reports with minimal resource allocation, reducing network resource usage while preserving location service functionality.
Solution Approach 2:
The patent implements a partial connection approach where only the essential signaling steps for location reporting are performed via EDT, rather than establishing complete signaling connections. This reduces the quantity of network resources consumed while maintaining sufficient location service functionality.
3Reliability
If frequent location reporting is implemented for tracked UEs, then location service quality is improved, but battery life of UE deteriorates
Solution Approach 1:
The patent extracts the location reporting capability from the power-intensive full connection procedure. By using EDT for periodic and triggered reporting, the UE can maintain high location service quality through frequent reporting while extending battery life by avoiding the power consumption of complete signaling connections.
Solution Approach 2:
The patent applies partial action by implementing frequent location reporting through the simplified EDT procedure rather than full signaling connections. This enables the UE to maintain high location service quality with extended battery life, as the partial connection approach consumes significantly less power.
4Use of energy by moving object
If simplified location reporting procedures are used, then power consumption and network resource usage are reduced, but signaling connection management complexity increases
Solution Approach 1:
The patent introduces the RAN node as an intermediary that manages the simplified EDT-based location reporting. The RAN node handles the signaling connection management, including establishing and releasing connections for EDT transmissions, thereby reducing the complexity burden on the UE while enabling power-efficient location reporting.
Data Source
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AI summary
Techniques are discussed herein for supporting periodic or triggered location of a user equipment (UE) using Early Data Transmission (EDT). A location server (LS), such as a 5G LMF, sends a request to a UE for periodic or triggered location and includes a request and/or criteria for using EDT. After confirming the request, the UE monitors for periodic or triggering events and, for each detected event, sends an event report to the LS which may include location information. In embodiments, the UE establishes a signaling connection with a RAN node but not with a core network to send the event report using EDT. The RAN node may then release the signaling connection, either immediately or after the LS returns a single response to the UE.