5G Location Measurement Messaging for Concurrent UE Positioning
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Solution Overview
Problem
Existing network assisted location positioning procedures in 5G systems are limited by the inability of the LMF to concurrently perform location measurement on multiple terminals served by a single base station.
Innovation Solution
Implementing a communication method that utilizes N1/N2 interface communication messages to enable concurrent location measurement information exchange between the LMF, AMF, and RAN devices, allowing simultaneous determination and measurement of multiple terminals served by a base station.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the LMF uses existing nonterminal-associated network assistance data procedures to obtain location measurement information, then the procedure is simple to implement, but the LMF can obtain location measurement information of only one terminal at a time and cannot concurrently perform location measurement on multiple terminals
Solution Approach 1:
The patent segments the location measurement information by including terminal-specific identifiers (such as UE ID, GPSI, or temporary identifiers) within the measurement information data structure. This segmentation allows the LMF to distinguish and process location measurement information from multiple terminals independently, enabling concurrent location measurements while maintaining manageable message structures through clear terminal association.
2Productivity
If the LMF sends signaling to specify RAN devices to obtain location-associated data through measurement, then location information can be calculated, but the process cannot be performed concurrently for multiple terminals
Solution Approach 1:
The patent applies preliminary action by including terminal identifiers in the location measurement information before it reaches the LMF. The AMF pre-processes the measurement information from multiple RAN devices, associating each measurement with its corresponding terminal identifier. This preliminary association enables the LMF to immediately process multiple terminal measurements concurrently without sequential delays, as the terminal correspondence is already established in the received data structure.
Data Source
AI summary
A location measurement method includes: sending a first message to an access and mobility management network element, where the first message includes first information associated with a terminal, and the first message indicates to perform location measurement on the terminal; and receiving a second message sent by the access and mobility management network element, where the second message includes second information associated with the terminal and location measurement information of the terminal.