CSI Beam Blocking Reporting for Faster Wireless Link Recovery
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Solution Overview
Problem
Existing wireless communication systems struggle to efficiently detect and respond to beam blocking, leading to communication errors and resource inefficiencies due to the lack of effective reporting mechanisms for beam blocking events.
Innovation Solution
Implementing methods and apparatuses for beam blocking detection and reporting, including configuring CSI reports and SRS configurations to enable UEs to measure and report parameters related to beam blocking, allowing base stations to quickly identify and address beam blocking issues.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If beam blocking detection parameters are configured and reported by UEs, then beam blocking detection capability is improved, but device complexity and processing overhead increase
Solution Approach 1:
The beam blocking detection mechanism is segmented into distinct functional components: configuration parameters (cri-RSRP-BeamCoherenceTimeBWPAverage, cri-RSRP-MaxAcrossPRBs, cri-RSRP-MinAcrossPRBs, cri-RSRP-Wideband-Delta-AcrossPRBs, cri-RSRP-Wideband-Delta-Time, cri-RSRP-PerPRB-Delta) that can be independently configured and reported. This allows the system to enable only necessary detection functions rather than implementing a monolithic complex detection system.
Solution Approach 2:
The patent introduces configurable parameters that allow dynamic adjustment of beam blocking detection sensitivity and reporting behavior. By changing parameters such as bandwidth part averaging, time period averaging, and PRB delta calculations, the system can adapt detection complexity to match actual beam blocking conditions and network requirements.
2Measurement precision
If comprehensive beam blocking parameters are measured and reported, then measurement precision is improved, but loss of time and processing overhead increase
Solution Approach 1:
The base station pre-configures the UE with beam blocking detection parameters and measurement requirements before actual beam blocking events occur. The UE is prepared with the necessary configuration (cri-RSRP-BeamCoherenceTimeBWPAverage, cri-RSRP-MaxAcrossPRBs, etc.) in advance, so when beam blocking is detected, reporting can occur immediately without configuration delays.
Solution Approach 2:
The system allows selective reporting of beam blocking parameters based on actual network needs. Not all parameters need to be reported in every scenario - the network can request specific subsets of parameters (e.g., only cri-RSRP-MaxAcrossPRBs and cri-RSRP-MinAcrossPRBs for basic blocking detection) to reduce reporting overhead while maintaining sufficient measurement precision for the given application.
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may receive a channel state information (CSI) report configuration that indicates one or more parameters associated with detecting eam blocking; calculate one or more values corresponding to the one or more parameters based at least in part on measuring downlink reference signals indicated in the CSI report configuration; and transmit a report that indicates the one or more values of the one or more parameters. Numerous other aspects are provided.