Terminal Link Transmission Priority for 5G NR V2X
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Solution Overview
Problem
In the 5G New Radio (NR) Vehicle to Everything (V2X) system, there is no effective solution for determining which link transmission to prioritize when uplink (UL) and side link (SL) transmissions of different Radio Access Technologies (RATs) or cell groups cannot be performed simultaneously.
Innovation Solution
A terminal device determines to preferentially perform at least one first transmission of different access types, such as Radio Access Technologies (RATs) or cell groups, based on predefined priorities, network configurations, and logical channel attributes, when simultaneous transmission is not possible.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If uplink transmission and side link transmission are performed simultaneously, then transmission efficiency is improved, but interference between different access types increases
Solution Approach 1:
The patent changes the parameter of transmission priority by introducing a priority indicator for different access types. The terminal device determines whether to perform uplink or side link transmission based on comparing priority indicators, thereby dynamically adjusting transmission parameters to resolve interference while maintaining overall transmission efficiency.
2Object-affected harmful factors
If priority determination between different access types is implemented, then interference is reduced, but system complexity increases
Solution Approach 1:
The terminal device autonomously determines transmission priority by comparing priority indicators of different access types without requiring complex network-side coordination. This self-service approach reduces system complexity while effectively resolving interference between uplink and side link transmissions.
3Adaptability or versatility
If simultaneous transmission of different RATs is supported, then adaptability is improved, but resource conflict increases
Solution Approach 1:
The patent introduces priority indicators as a controllable parameter to manage resource allocation between different RATs. By comparing these indicators, the system adapts to support multiple RATs while preventing resource conflicts, thereby maintaining both adaptability and resource efficiency.
Data Source
AI summary
A link transmission method and a terminal device are provided. The method includes an operation as follows. Responsive to that a first transmission and a second transmission cannot be performed simultaneously, a terminal device determines to preferentially perform at least one first transmission. The first transmission includes first transmission of different access types and the access types include a Radio Access Technology (RAT).