5G Core Network Positioning Service Level Capability Management
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Solution Overview
Problem
Current 5G systems face challenges in implementing enhanced positioning service levels and service area control, particularly in managing registration and connection management states between user equipment (UE) and access and mobility management function (AMF) entities, which affects network efficiency and user plane connectivity.
Innovation Solution
The implementation of advanced network functions such as Access and Mobility Management Function (AMF) and User Plane Function (UPF) within the 5G core network, which includes functionalities like registration management, connection management, and user plane path handling, to enhance service level control and user plane connectivity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If advanced network functions (AMF, UPF) are implemented to enhance positioning service level, then service area control and user plane connectivity are improved, but device complexity and network configuration difficulty increase
Solution Approach 1:
The patent segments the 5G core network into distinct functional units (AMF, UPF, LM) with specialized responsibilities. The AMF handles registration and connection management, the UPF manages user plane connectivity, and the LM provides positioning services. This segmentation allows each component to be optimized independently while maintaining overall system reliability and reducing configuration complexity through modular design.
2Productivity
If registration management and connection management states are controlled to enhance service level, then network efficiency is improved, but control overhead and signaling complexity increase
Solution Approach 1:
The patent implements preliminary action by establishing registration management and connection management states in advance during UE registration. The AMF pre-configures the UE with registration area information and connection management states before actual data transmission begins. This preliminary setup enables efficient network operations by avoiding repeated configuration signaling during subsequent communications.
Solution Approach 2:
The patent employs feedback mechanisms where the AMF monitors UE registration status and connection states, and dynamically adjusts control signaling based on current network conditions and UE behavior. This feedback-driven approach optimizes network efficiency by sending control signals only when necessary, reducing overall signaling complexity while maintaining effective service level control.
3Measurement precision
If service area control is enhanced for positioning services, then positioning accuracy is improved, but measurement and detection difficulty increase
Solution Approach 1:
The patent introduces a Location Management (LM) function as an intermediary between the AMF and positioning measurement systems. The LM receives service area information from the AMF, processes positioning requests, and coordinates with positioning infrastructure elements. This intermediary simplifies the measurement process by centralizing control logic and providing standardized interfaces, thereby improving positioning accuracy while reducing the complexity of direct measurements.
Data Source
AI summary
A gateway mobile location center (GMLC) may include processor(s) and memory storing instructions. The instructions, when executed by the processor(s), may cause the GMLC to perform operations that include receiving, from a location services (LCS) client, a request for a capability of a positioning service level for a wireless device. The operations may also include receiving, from a network function, a second message indicating at least one of: a positioning capability of the wireless device; and a positioning capability of at least one base station. The operations may further include determining the capability of the positioning service level for the wireless device, based on the second message. The operations may additionally include sending, by the GMLC to the LCS client, a response that includes the capability of the positioning service level. The capability of the positioning service level may include a parameter indicating an absolute or a relative positioning.