Sidelink Positioning Messages With Session and Transaction IDs
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently transmitting and receiving sidelink positioning protocol messages, particularly in scenarios involving vehicle-to-everything (V2X) communication, where direct links between user equipments (UEs) are established without base station intervention.
Innovation Solution
The proposed solution involves establishing sidelink positioning protocol (SLPP) sessions between UEs, generating SLPP messages with session and transaction identifiers, and transmitting these messages to target UEs, allowing for efficient identification and management of multiple sessions and transactions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple SLPP sessions are established between UEs for V2X positioning, then positioning accuracy and communication reliability are improved, but message identification and session management complexity increase
Solution Approach 1:
The message structure is segmented to include distinct identifier fields: SLPP session ID for session-level identification and SLPP transaction ID for transaction-level identification. This segmentation allows the system to manage multiple concurrent sessions and transactions without confusion, resolving the complexity issue while maintaining reliability
Solution Approach 2:
The patent implements a nested identification structure where the SLPP transaction ID is nested within the context of SLPP session ID. This nested approach allows hierarchical management of sessions and transactions, enabling the system to handle multiple layers of communication contexts simultaneously without increasing overall management complexity
2Loss of information
If SLPP messages include detailed session and transaction identifiers, then message routing and transaction tracking are improved, but message header size and processing overhead increase
Solution Approach 1:
The patent applies local quality by making identifier fields optional or variable-length based on specific communication needs. Not all SLPP messages require both session ID and transaction ID, allowing the system to optimize message size locally based on the specific transaction requirements, thus reducing overall processing overhead while maintaining tracking accuracy
Data Source
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AI summary
The present disclosure relates to a method of performing sidelink positioning for a User Equipment (UE) in a wireless communication system. In particular, the method includes the steps of: configuring at least one SLPP (Sidelink Positioning Protocol) session with at least one target UE;generating a SLPP message related to the at least one SLPP session; and transmitting the SLPP message to the at least one target UE, wherein the SLPP message includes at least one SLPP session identifier for identifying the at least one SLPP session and at least one SLPP transaction identifier for identifying the at least one SLPP transaction belonging to the at least one SLPP session.