Wireless Terminal Multi-RAT Configuration Adaptation
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Solution Overview
Problem
Current solutions for multi-radio access technology (RAT) integration in wireless communication systems may misconfigure user equipment (UE) with features not supported by the UE, leading to conflicts and inefficiencies, particularly in scenarios where knowledge of UE capabilities is limited or unavailable.
Innovation Solution
A method and apparatus for a wireless terminal device to receive a multi-connectivity configuration from a network node, determine its capabilities, and adapt the configuration if necessary to ensure proper transceiver operation, prioritizing RATs based on characteristics like radio channel conditions, latency, and power efficiency, and optionally transmitting the adapted configuration back to the network node.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the network node configures the UE with multi-connectivity features, then the service quality and data rate are improved, but the UE may be misconfigured with features it does not support, leading to conflicts and errors
Solution Approach 1:
The UE performs self-validation by comparing the received multi-connectivity configuration against its own capability information, and feeds back an indication (such as a failure message or capability information) to the network node when misconfiguration is detected. This feedback mechanism enables the network node to adjust future configurations to match UE capabilities, resolving the contradiction between providing high-service-quality configurations and ensuring configuration reliability.
Solution Approach 2:
The UE autonomously validates the received configuration against its own capability information without requiring extensive prior knowledge from the network node. By performing self-checks and self-correction (through capability feedback), the UE serves itself in ensuring proper configuration, thereby improving reliability while maintaining the ability to receive advanced multi-connectivity configurations.
2Ease of operation
If the network node provides comprehensive configuration information, then the transceiver operation can be properly set up, but the signalling overhead and complexity increase
Solution Approach 1:
Instead of requiring the network node to provide perfectly matched configuration information from the outset, the system uses a two-stage approach: first providing a comprehensive (possibly excessive) configuration, then allowing the UE to perform partial validation and feedback. This reduces the initial signalling burden on the network node while still achieving proper transceiver setup through the subsequent UE-led validation process.
Data Source
AI summary
A wireless terminal device of a wireless communication system is arranged to operate according to a plurality of radio access technologies, RATs. A method of the wireless terminal device comprises receiving a configuration from a network node of an access network of the wireless communication system, wherein the configuration is a multi-connectivity configuration arranged to operate towards a plurality of RATs simultaneously, determining capabilities of the wireless terminal device, and analyzing the received configuration in view of the capabilities. If the capabilities are fully sufficient for the configuration, the configuration is used for setting up transceiver operation of the wireless terminal device, or if the capabilities are not fully sufficient for the configuration, an adapted configuration is determined for setting up the transceiver operation of the wireless terminal device, wherein the capabilities are fully sufficient for the adapted configuration. The method also comprises operating the wireless terminal device according to selected transceiver operation. Network node, and methods and computer programs therefor are also disclosed.