Combined RRM and CSI-RS Measurement Reporting in LTE
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Solution Overview
Problem
In wireless communication systems, particularly in LTE networks, there is a challenge in efficiently reporting combined measurement results, such as RRM and CSI-RS measurements, which affects the quality of service and data transmission rates, especially at the cell edge where interference from neighboring cells is significant, and there is a need for a method to optimize the reporting of channel state information to improve network performance.
Innovation Solution
A method for reporting combined measurement results in a wireless communication system, where a user equipment (UE) performs first-type and second-type measurements, determines if the results satisfy specific reporting conditions, and transmits a measurement reporting message that includes both types of results, with settings for threshold values and maximum numbers of measurements to be reported, allowing for efficient use of radio resources and improved network operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the UE reports both RRM and CSI-RS measurement results separately, then the network can process all measurement information, but the radio resources are wasted due to redundant reporting
Solution Approach 1:
The patent combines RRM measurement results and CSI-RS measurement results into a single measurement reporting message. The UE determines whether to include CSI-RS measurement results in the RRM measurement report based on pre-configured indication information from the network, thereby merging two separate reporting processes into one efficient transmission.
2Loss of information
If the UE reports all measurement results without filtering, then the network receives complete data, but the reporting overhead increases and radio resources are inefficiently used
Solution Approach 1:
The patent applies different reporting strategies for different measurement types. The UE selectively reports CSI-RS measurement results only when indicated by the network, rather than reporting all measurements uniformly. This localized quality control optimizes the reporting process by including only necessary measurement data.
Solution Approach 2:
Instead of reporting all measurement results, the UE performs partial reporting by selectively including only those measurement results that the network has indicated are needed. This partial action approach reduces reporting overhead while maintaining necessary information for network optimization.
3Measurement precision
If the network configures detailed measurement settings for both RRM and CSI-RS, then the measurement precision is improved, but the configuration complexity and processing burden increase
Solution Approach 1:
The patent uses a unified measurement reporting mechanism that handles both RRM and CSI-RS measurements through a single message structure. The network's indication information serves multiple purposes: it triggers CSI-RS measurement reporting while maintaining the existing RRM measurement reporting流程, thereby achieving multi-functionality without proportionally increasing complexity.
Data Source
AI summary
Provided is a method for reporting a measurement in a wireless communication system. The method comprises: obtaining a first-type measurement result by performing a first-type measurement; obtaining a second-type measurement result by performing a second-type measurement; determining whether the first-type measurement result satisfies a reporting condition; and transmitting a measurement report message, which includes the first-type measurement result, to a network when the first-type measurement result satisfies the reporting condition. A first measurement report message further comprises a second-type measurement result.