Serving Cell CSI-RS RRM Measurement Reporting
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Solution Overview
Problem
Current wireless communication systems face inefficiencies in performing serving cell-specific CSI-RS RRM measurements, as they often require reporting measurements for both serving and non-serving cells, leading to increased complexity and memory usage in UE devices.
Innovation Solution
The method allows User Equipment (UE) to report serving cell-specific CSI-RS RRM measurements independently of non-serving cell measurements, by transmitting an indication to the base station and receiving configuration of layer 3 measurement resources, enabling the UE to perform and report only serving cell measurements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the UE reports measurements for both serving and non-serving cells, then the network can perform comprehensive mobility management, but the UE complexity and memory usage increase
Solution Approach 1:
The patent extracts and separates the serving cell measurement reporting from non-serving cell measurement reporting. The UE is configured to report serving cell CSI-RS RRM measurements independently without requiring non-serving cell measurements, thereby removing the unnecessary burden of measuring and reporting non-serving cell metrics while maintaining the essential mobility management functionality through serving cell measurements alone
2Reliability
If the UE reports measurements for both serving and non-serving cells, then the network can perform comprehensive mobility management, but the memory usage in UE increases
Solution Approach 1:
The patent extracts and removes the requirement for storing and reporting non-serving cell measurement data. By configuring the UE to perform and report only serving cell CSI-RS RRM measurements independently, the patent eliminates the memory burden associated with maintaining measurement buffers and reporting structures for non-serving cells, thereby reducing overall UE memory usage while preserving mobility management capability
3Device complexity
If the UE performs serving cell-specific measurements independently, then the UE complexity is reduced, but the measurement precision for non-serving cells is lost
Solution Approach 1:
The patent inverts the traditional approach by making serving cell measurements the primary and independent focus, rather than treating non-serving cell measurements as the primary function. By inverting the measurement reporting paradigm to prioritize serving cell-specific CSI-RS RRM measurements, the patent achieves UE complexity reduction while the network compensates for non-serving cell measurement needs through alternative means such as overheard reference signals or network-side measurements
Data Source
AI summary
Apparatus, methods, and computer program products for serving cell measurement based on CSI-RS RRM are provided. An example apparatus may transmit, to a base station, an indication indicating support for reporting one or more serving cell channel state information reference signal (CSI-RS) radio resource management (RRM) measurements independent of non-serving cell CSI-RS RRM measurements. The example apparatus may receive, from the base station, a configuration of layer 3 measurement resources. The example apparatus may perform, based on the configuration of the layer 3 measurement resources, the one or more serving cell CSI-RS RRM measurements. The example apparatus may transmit, to the base station, the one or more serving cell CSI-RS RRM measurements for a serving cell.