NR Bandwidth Part Activation and Deactivation Using MAC CE
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Solution Overview
Problem
The related art does not clearly define a scheme for activating and deactivating bandwidth parts (BWPs) in New Radio (NR) communication, leading to incomplete communication processes and unreliable network connections.
Innovation Solution
A resource configuration method and system that utilizes Medium Access Control (MAC) layer control elements (CE) and Radio Resource Control (RRC) messages to manage the activation and deactivation of bandwidth parts (BWPs) through explicit commands, including timing durations and logical channel configurations, ensuring reliable network communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If MAC CE is used for BWP activation and deactivation, then signaling efficiency is improved, but the communication process becomes incomplete and reliability deteriorates
Solution Approach 1:
The patent introduces a feedback mechanism where the terminal sends a first indication information to the base station after receiving BWP activation/deactivation signaling. The base station then sends second indication information based on this feedback. This feedback loop ensures that the activation and deactivation processes are properly confirmed and tracked, completing the communication process and improving reliability while maintaining signaling efficiency.
2Reliability
If clear BWP activation and deactivation schemes are defined, then communication reliability is improved, but device complexity increases
Solution Approach 1:
The patent uses MAC CE, which is already a standard signaling element in 5G NR for various control purposes. By making MAC CE multi-functional (capable of indicating both activation and deactivation of BWPs), the patent avoids introducing entirely new control mechanisms. This approach improves reliability through clear definition while minimizing the increase in device complexity by reusing existing standardized structures.
3Adaptability or versatility
If multiple BWPs are configured for UE operation, then adaptability is improved, but the complexity of managing activation and deactivation increases
Solution Approach 1:
The feedback mechanism with first and second indication information provides a systematic way to manage multiple BWPs. The terminal confirms receipt and processing of activation/deactivation commands, and the base station adjusts accordingly. This structured feedback approach makes the management of multiple BWPs more predictable and controllable, reducing the complexity burden despite having multiple configurations available.
Data Source
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AI summary
A resource configuration method, a terminal and a base station are provided. The resource configuration method applied to a terminal includes: receiving an activation state configuration command of a preconfigured bandwidth part (BWP) resource transmitted by a base station; configuring the resource of the BWP according to the activation state configuration command.