Virtual Carrier Aggregation for Flexible Base Station Selection
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Solution Overview
Problem
Current base station systems lack flexibility in selecting an activated carrier set for user equipment (UE) due to reliance on long-term statistics for RSRP/RSRQ feedback, limiting optimal carrier aggregation configurations.
Innovation Solution
A method for virtual carrier aggregation that allows the base station to receive measurement capability indication information from the UE, select a measurement set based on this information, and notify the UE, enabling flexible selection of an activated carrier set by considering the UE's capabilities for CSI and RSRP measurement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the base station selects an activated carrier set according to long term statistics information RSRP/RSRQ fed back by the UE, then the carrier selection is based on historical data, but the manner of selecting an activated carrier set is not flexible enough
Solution Approach 1:
The patent implements a feedback mechanism where the UE reports its measurement capability indication information to the base station. This feedback loop enables the base station to obtain real-time information about the UE's CSI and RSRP measurement capabilities, allowing for more flexible and informed selection of activated carrier sets based on current capabilities rather than relying solely on historical RSRP/RSRQ statistics.
Solution Approach 2:
The patent applies preliminary action by having the UE report its measurement capability indication information in advance before the base station selects the activated carrier set. This preliminary information about measurement capabilities allows the base station to proactively configure appropriate measurement sets and activated carrier sets that match the UE's actual capabilities, rather than reacting to performance issues after configuration.
2Adaptability or versatility
If the base station configures carrier set according to UE capabilities, then the configuration is tailored to UE abilities, but the base station cannot flexibly select activated carrier set without real-time measurement capability information
Solution Approach 1:
The patent segments the carrier set management into distinct components: measurement capability indication information, measurement set configuration, and activated carrier set selection. This segmentation allows the base station to manage each aspect independently - first obtaining measurement capabilities, then configuring appropriate measurement sets, and finally selecting activated carrier sets based on both capabilities and real-time conditions, reducing overall system complexity.
Solution Approach 2:
The patent introduces dynamics by making the measurement set and activated carrier set configurations adaptable based on reported measurement capabilities. The system transitions from static, capability-based configuration to dynamic configuration that can adjust measurement sets and activated carrier sets according to real-time UE measurement capabilities and network conditions, enhancing adaptability without excessive complexity.
Data Source
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AI summary
The present invention provides a method for virtual carrier aggregation, a base station, and a user equipment. The method for virtual carrier aggregation includes: receiving, by a base station, measurement capability indication information and indication information indicating a capability of receiving data transmission that are reported by a UE; selecting a measurement set for the UE according to the measurement capability indication information; notifying the measurement set to the UE, where the indication information indicating the capability of receiving data transmission includes information of carriers on which the UE supports concurrent receiving of data transmission and the measurement capability indication information includes indication information indicating a capability of the UE for measuring CSI and/or indication information indicating a capability of the UE for measuring RSRP. According to the present invention, the base station can flexibly select an activated carrier set for the UE.