BFD Resource Activation State Alignment in 5G Beam Failure Detection
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Solution Overview
Problem
In 5G communication systems, the terminal device cannot determine the specific process by which the network device activates or deactivates beam failure detection (BFD) resources, leading to inconsistent understandings between the network device and the terminal device regarding the activation state and activation process of BFD resources.
Innovation Solution
The terminal device determines the initial activation state and activation state update mode of BFD resources based on the number of BFD resources, signaling indications from the network device, and its own ability to activate or deactivate BFD resources via MAC CE signaling, ensuring consistent understanding with the network device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the network device activates or deactivates BFD resource via MAC CE signaling or RRC signaling, then the BFD resource can be dynamically controlled, but the terminal device cannot determine the specific process leading to inconsistent understanding of activation state
Solution Approach 1:
The patent introduces a feedback mechanism where the terminal device reports its understanding of the BFD resource activation state to the network device. This feedback loop allows both parties to align their understanding by comparing the reported state with the actual configured state, resolving the inconsistency caused by ambiguous activation processes.
Solution Approach 2:
The patent uses an intermediary information element (IE) that carries explicit activation state information between the network device and terminal device. This intermediary structure mediates the communication, ensuring that the terminal device receives clear information about the activation process and state, eliminating the ambiguity in the dynamic control mechanism.
2Reliability
If the network device configures BFD resource via RRC signaling, then the configuration is established, but the terminal device cannot distinguish between initial configuration and activation updates
Solution Approach 1:
The patent segments the BFD resource control into distinct phases: initial configuration phase and activation update phase. By separating these phases and assigning different signaling mechanisms or explicit state indicators to each, the terminal device can clearly distinguish between initial configuration and subsequent activation updates, maintaining reliability while preserving information about the specific process.
3Speed
If the terminal device uses MAC CE signaling to activate or deactivate BFD resource, then the activation is rapid, but the understanding of activation state may not align with network device
Solution Approach 1:
The patent implements a feedback mechanism where the terminal device reports its activation state understanding to the network device after MAC CE signaling operations. This rapid feedback allows the network device to verify alignment while maintaining the speed advantage of MAC CE signaling, as the feedback occurs asynchronously without blocking the rapid activation process.
Data Source
AI summary
The present disclosure relates to the technical field of communications, and provides an information determination method, apparatus and device, and a storage medium. The method comprises: acquiring a configuration resource sent by a network device, wherein the configuration resource comprises at least one beam failure detection (BFD) detection resource set, and the BFD detection resource set comprises at least one BFD detection resource; and determining at least one of an initial activation state and an activation state update manner of the BFD detection resource. The method provided in the present disclosure allows a terminal device and a network device to use the same method to determine the initial activation state and/or the activation state update manner, so that the terminal device and the network device obtain the same determination result regarding the initial activation state and the activation state update manner, thereby ensuring that the terminal device and the network device have a consistent understanding of the activation state and activation manner of the BFD detection resource.