Sidelink Radio Access Method Selection via Base Station Reconfiguration
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Solution Overview
Problem
Current wireless communication technologies lack a mechanism for selecting a suitable radio access method for sidelink data transmission, as terminals can support multiple radio access methods such as LTE and NR, but there is no existing solution for determining the optimal method for data transmission.
Innovation Solution
A method where a terminal sends a channel configuration message to a base station indicating supported radio access methods for logical channels, and the base station generates a reconfiguration message to specify the appropriate radio access methods for data transmission, allowing the terminal to send data accordingly based on the configured methods.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a terminal supports multiple radio access methods (LTE and NR), then the adaptability of the terminal is improved, but the difficulty of selecting the appropriate access method increases
Solution Approach 1:
The base station acts as an intermediary that receives capability information from the terminal, determines the appropriate radio access method based on network conditions and terminal capabilities, and configures the terminal through reconfiguration messages. This mediator approach resolves the selection difficulty by centralizing the decision-making process at the network side.
Solution Approach 2:
The system changes the parameter of radio access method selection from a terminal-side decision to a network-side decision. The base station dynamically adjusts the selected access method (LTE or NR) based on network conditions, terminal capabilities, and service requirements, transforming the selection process into a configurable parameter rather than a fixed terminal function.
2Productivity
If radio access methods are selected dynamically, then data transmission efficiency is improved, but the complexity of the configuration process increases
Solution Approach 1:
The terminal pre-configures multiple radio access methods (LTE and NR) and reports its capabilities to the base station in advance. The base station then uses this pre-reported information to make configuration decisions, eliminating the need for complex real-time negotiation and reducing the overall configuration complexity while enabling efficient dynamic selection.
Solution Approach 2:
The terminal provides feedback to the base station about its supported radio access methods and capabilities. The base station uses this feedback information to determine the appropriate configuration and sends reconfiguration messages back to the terminal. This feedback loop simplifies the configuration process by making it information-driven rather than trial-and-error based.
Data Source
AI summary
A data transmission method includes: sending a channel configuration message to a base station, the channel configuration message being used to indicate an access method set for one or more logical channels corresponding to a sidelink in the terminal; receiving a reconfiguration message sent by the base station, the reconfiguration message being used to indicate radio access methods corresponding to the logical channels; and sending the data in the logical channels on the sidelink according to corresponding radio access methods for the logical channels.