LTM CSI Reporting Activation for Faster Cell Switch Measurement
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Solution Overview
Problem
Existing LTM procedures in 3GPP wireless communication systems lack efficient methods for dynamically updating LTM CSI reporting configurations and distinguishing between serving cell and LTM CSI reporting, leading to inefficiencies in cell switch processes.
Innovation Solution
Implementing a method for receiving and transmitting LTM CSI reporting configurations via RRC, with control messages to activate or deactivate LTM CSI reporting, and using unique identifiers in MAC CEs to differentiate between serving cell and LTM CSI reporting, allowing dynamic updates to reporting configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If LTM CSI reporting configurations are updated dynamically using control messages, then the flexibility of LTM cell switch operations is improved, but the device complexity increases
Solution Approach 1:
The patent implements dynamic activation and deactivation of LTM CSI reporting configurations through control messages (MAC CE or DCI) rather than static RRC configuration only. This allows the network to adaptively enable or disable specific CSI reporting configurations based on current mobility conditions, resolving the contradiction by making the system flexible through dynamic control while keeping the underlying configuration structure manageable.
Solution Approach 2:
The patent pre-configures multiple LTM CSI reporting configurations via RRC before dynamic selection is needed. These pre-configured configurations include parameters for SpCell inclusion/exclusion and measurement reporting settings. When dynamic adaptation is required, the network simply activates or deactivates pre-prepared configurations rather than creating new ones, reducing the complexity of real-time configuration management.
2Productivity
If SpCell inclusion in measurement reports is managed dynamically, then the efficiency of LTM procedures is improved, but the loss of information increases
Solution Approach 1:
The patent implements feedback mechanisms where the UE reports measurement results including SpCell measurements according to the activated LTM CSI reporting configuration. The network receives these reports and uses them to make informed cell switch decisions. This feedback loop ensures that critical measurement information is preserved and used effectively, resolving the contradiction by maintaining information integrity while improving procedural efficiency through targeted dynamic management.
Solution Approach 2:
The patent applies different treatment to different parts of the measurement reporting system. Specifically, it allows selective inclusion or exclusion of SpCell measurements in LTM CSI reports based on the activated configuration, while maintaining other measurement reports unchanged. This localized differentiation improves LTM procedure efficiency without causing information loss in other reporting contexts.
Data Source
AI summary
Systems, methods, apparatuses, and computer program products for supporting periodic and SP reporting on PUCCH. One method may include a UE receiving, from a network entity, at least one LTM CSI reporting configuration via radio resource configuration; receiving, from the network entity, at least one control message configured to activate or deactivate at least one of the at least one LTM CSI reporting configuration, and transmitting, to the network entity, L1 measurement reporting according to at least one of the at least one control message.