User-Plane Positioning Connection via NAS Message Routing
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Solution Overview
Problem
The existing communication technologies face challenges in determining how to transmit messages related to user-plane positioning connections, affecting communication performance in network-initiated and terminal-initiated scenarios.
Innovation Solution
A communication method is provided for user-plane positioning connections, enabling terminals to send and receive messages through uplink and downlink non-access stratum transmissions, including LCS-UP payloads, to establish, modify, or cancel user-plane positioning connections, thereby improving communication performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If user-plane positioning connection messages are transmitted through existing communication protocols, then message transmission can be achieved, but communication performance is degraded due to lack of optimized transmission mechanisms
Solution Approach 1:
The patent segments the positioning connection establishment into distinct phases: service request phase, connection setup phase, and data transmission phase. Each phase uses specific message types (service request, service accept, UL NAS TRANSPORT, DL NAS TRANSPORT) optimized for that phase, improving overall communication performance while maintaining manageable complexity.
Solution Approach 2:
The patent introduces the AMF (Access and Mobility Management Function) as an intermediary entity that mediates between the terminal and the network for positioning connection establishment. The AMF manages the LCS-UP connection, handles message routing, and coordinates the positioning procedures, thereby improving communication performance through centralized control.
2Adaptability or versatility
If multiple message types are used for positioning connection establishment, then connection establishment flexibility is improved, but message transmission complexity increases
Solution Approach 1:
The patent employs the UL NAS TRANSPORT and DL NAS TRANSPORT messages as universal carriers that can transport multiple types of positioning-related information (LCS-UP payloads) in a single message structure. This multi-functional message design allows flexible connection establishment while reducing the overall number of different message types needed.
Solution Approach 2:
The patent implements dynamic message type selection based on the connection establishment scenario. For terminal-initiated connections, service request messages are used; for network-initiated connections, direct UL NAS TRANSPORT messages are used. This dynamic adaptation improves flexibility while managing complexity through context-aware message selection.
3Productivity
If positioning connection messages are transmitted without dedicated protocols, then implementation simplicity is maintained, but communication performance deteriorates
Solution Approach 1:
The patent establishes the user-plane positioning connection (LCS-UP connection) before actual positioning data transmission. The connection setup phase pre-configures the communication path, assigns identifiers, and validates the connection, thereby improving subsequent message transmission efficiency while containing protocol complexity in a dedicated setup phase.
Solution Approach 2:
The patent separates the positioning connection management from the regular service data flow by introducing a dedicated user-plane positioning connection dimension. This includes separate connection establishment procedures, separate message types (LCS-UP payloads), and separate resource allocation, thereby improving positioning message transmission efficiency without interfering with regular service protocols.
Data Source
AI summary
Embodiments of this application relate to the field of communication technologies, and disclose a communication method for a user-plane positioning connection, a terminal, and a network-side device. The communication method for a user-plane positioning connection in embodiments of this application includes: a terminal sending a first message, or a terminal receiving a third message. The first message is related to a user-plane positioning connection. The first message is a service request message, or the first message is an uplink non-access stratum transmission message. The uplink non-access stratum transmission message includes an LCS-UP payload. The third message is related to a user-plane positioning connection. The third message is a downlink non-access stratum transmission message, and the downlink non-access stratum transmission message comprises an LCS-UP payload.