Failure Cancellation Recording for NR-U LBT and Beam Reporting
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In the context of 5G New Radio (NR-U) operations in unlicensed bands, network devices are unaware of cancellation of Listen-Before-Talk (LBT) failures and beam failures at terminal devices due to scenarios like BWP switching, SCell deactivation, and RRC reconfiguration, leading to inefficient resource management.
Innovation Solution
Terminal devices are configured to detect and record information about the cancellation of LBT and beam failures, and subsequently transmit this information to network devices for better resource management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If terminal devices perform BWP switching, SCell deactivation, or RRC reconfiguration, then operational flexibility and network adaptability are improved, but network devices become unaware of failure cancellations leading to resource management inefficiency
Solution Approach 1:
The patent implements a feedback mechanism where the terminal device sends an indication message to the network device when a failure reporting cancellation occurs. This feedback loop ensures that the network device becomes aware of the cancellation event, allowing it to update its resource allocation and management decisions accordingly, thus resolving the information loss problem while maintaining operational flexibility
Solution Approach 2:
The patent configures the terminal device with failure reporting cancellation indication configurations in advance through RRC signaling. This preliminary configuration enables the terminal device to promptly send cancellation indications when failures are cancelled, ensuring that the network device receives timely information without waiting for subsequent communication events
2Reliability
If terminal devices continuously monitor and report all failure events, then network awareness is improved, but signaling overhead and device complexity increase
Solution Approach 1:
The patent extracts and reports only the specific event of failure reporting cancellation, rather than continuously monitoring and reporting all failure events. This selective reporting approach maintains network awareness of critical information while significantly reducing signaling overhead and device complexity compared to comprehensive failure monitoring
Solution Approach 2:
The terminal device autonomously determines when a failure reporting cancellation occurs and independently sends the cancellation indication to the network device without requiring continuous network prompting. This self-service mechanism reduces the burden on network resources and simplifies the overall system operation while maintaining reliable network awareness
Data Source
AI summary
Embodiments of the present disclosure relate to recording of failure cancellation. The first device detects a cancellation of a reporting of a failure for a transmission between the first device and a second device. Then, in accordance with a determination that the cancellation of the reporting of the failure is detected, the first device records information concerning the cancellation. As such, the first device is able to provide the recorded information on failure cancellation to the second device when needed.