SLPP Transaction ID Signaling for Accurate Sidelink Positioning
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Solution Overview
Problem
In sidelink positioning systems involving multiple user equipments (UEs), there is a challenge in accurately distinguishing the initiator of a transaction, leading to inaccuracies in information interaction and positioning accuracy.
Innovation Solution
The use of a sidelink positioning protocol (SLPP) message that includes a transaction identification (ID) to determine the initiator of a transaction, enabling clear identification of the initiator among participating UEs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple UEs participate in positioning transactions without a transaction ID mechanism, then the positioning system can operate with simpler message structures, but the initiator of transactions cannot be accurately distinguished among multiple participants
Solution Approach 1:
The patent introduces a transaction ID as an intermediary element that mediates the identification of the initiator among multiple UEs. The transaction ID is embedded in SLPP messages and serves as a unique identifier that allows participants to distinguish who initiated a particular positioning transaction, resolving the ambiguity without requiring complex message structures or additional signaling mechanisms.
Solution Approach 2:
The patent segments the positioning transaction information by separating the initiator identification function into a distinct transaction ID field within the SLPP message structure. This segmentation allows the initiator determination to be handled independently through the transaction ID, while the rest of the message structure remains relatively simple and focused on positioning data exchange.
2Reliability
If a transaction ID is included in SLPP messages to identify the initiator, then the accuracy of information interaction is improved, but the message structure becomes more complex
Solution Approach 1:
The transaction ID serves multiple functions within the SLPP message structure: it identifies the initiator, tracks the transaction state, and enables proper routing and processing of positioning requests and responses. This multi-functionality reduces the need for separate fields or mechanisms, thereby limiting the increase in message structure complexity while achieving improved reliability.
3Measurement precision
If multiple UEs participate in positioning transactions without clear initiator identification, then the positioning system can support group positioning, but the positioning accuracy deteriorates due to inability to distinguish transaction initiators
Solution Approach 1:
The transaction ID acts as a mediator that enables multiple UEs to participate in positioning transactions while maintaining clear initiator identification. Each UE can be identified as the initiator through the transaction ID embedded in SLPP messages, allowing the system to support group positioning scenarios (such as multiple anchor UEs or target UEs) without sacrificing the ability to determine who initiated each specific positioning transaction, thereby maintaining positioning accuracy.
Data Source
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AI summary
Provided in the embodiments of the present disclosure are an information processing method and apparatus, and a communication device and a storage medium. The information processing method, which is executed by means of a sending end, comprises: sending a sidelink positioning protocol (SLPP) message, wherein the SLPP message comprises a transaction identifier (ID) of a first transaction, and the transaction ID is used for determining an initiator of the first transaction.