Sidelink Control Information Transmission Mode Identification
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Solution Overview
Problem
In the Internet of Vehicle system, user equipment from different Rel-14 and Rel-15 standards face challenges in detecting and identifying control information, leading to difficulties in determining the correct transmission mode when devices are in the same resource pool, resulting in potential resource conflicts and inefficient data reception.
Innovation Solution
The solution involves configuring control information with indication information that can be detected by both Rel-14 and Rel-15 user equipment, using specific bits or mask sequences in the Sidelink Control Information format to indicate the transmission mode, ensuring that receiving end devices can correctly identify and receive data according to the corresponding transmission algorithm.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If control information is configured without transmission mode indication, then the control information format remains simple and compatible with both Rel-14 and Rel-15 devices, but receiving devices cannot determine the correct transmission mode leading to resource conflicts and inefficient data reception
Solution Approach 1:
The control information is segmented into multiple fields, with specific bits allocated for transmission mode indication. This segmentation allows the control information to carry additional functionality (transmission mode identification) while maintaining a structured format that both Rel-14 and Rel-15 devices can parse, resolving the contradiction between identification accuracy and structural simplicity.
Solution Approach 2:
The control information structure is designed to be universal, serving multiple functions: resource allocation, transmission mode indication, and compatibility with both Rel-14 and Rel-15 devices. By making the control information multi-functional, the system achieves accurate transmission mode identification without requiring separate control structures for different device types, thus resolving the contradiction between precision and complexity.
2Adaptability or versatility
If different control information formats are used for Rel-14 and Rel-15 devices, then each device type can be optimized for its specific standard, but devices in the same resource pool face difficulties in detecting and identifying control information from different standards
Solution Approach 1:
A unified control information format is implemented that works for both Rel-14 and Rel-15 devices. The control information includes fields that are interpreted differently by different device types, allowing the same control structure to serve multiple standards simultaneously. This universality enables devices in the same resource pool to detect and identify control information regardless of which standard the transmitting device uses, resolving the contradiction between adaptability and detection difficulty.
Solution Approach 2:
The control information acts as an intermediary that mediates between Rel-14 and Rel-15 devices. It contains indication information that bridges the gap between different standards, allowing receiving devices to determine the appropriate transmission mode without requiring direct knowledge of the transmitting device's standard. This intermediary approach resolves the contradiction by providing a common interface that facilitates cross-standard communication.
3Productivity
If transmission mode indication information is added to control information, then receiving devices can determine the correct transmission mode for efficient data reception, but the control information becomes more complex and may affect devices that cannot interpret the new fields
Solution Approach 1:
The control information is segmented with specific bits dedicated to transmission mode indication, allowing receiving devices to efficiently extract this critical information without processing the entire control structure. This segmentation improves data reception efficiency by enabling quick identification of transmission mode while maintaining a manageable control information format that devices can process effectively.
Solution Approach 2:
The control information includes transmission mode indication fields that may be partially interpreted by different device types. Rel-14 devices can ignore or default-handle the additional fields while Rel-15 devices fully utilize them. This partial action approach allows the system to achieve improved data reception efficiency for capable devices without completely breaking compatibility with older devices, thus resolving the contradiction between productivity and complexity.
Data Source
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AI summary
Disclosed in the present application are a data processing method and a related device. The method comprises: a first user equipment receives control information from a second user equipment, the control information comprising indication information; the first user equipment determines, according to the indication information, a transmission mode of data scheduled by the control information. According to embodiment of the present application, a user equipment can recognize a data transmission mode.