Terminal Beam Measurement Processing for High-Frequency Cell Quality
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Solution Overview
Problem
Existing measurement methods for reference signal quality in high-frequency networks, such as those above 6 GHz, are inadequate due to higher propagation losses and signal attenuation, leading to unreliable cell handover and optimization in LTE systems.
Innovation Solution
A method where a terminal receives and processes reference signals on multiple beams, generating measurement samples and processing them to produce accurate target processing values for reporting cell quality or channel state, enabling more reliable cell handover and optimization decisions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If beamforming is used in high-frequency networks to compensate for propagation losses, then signal coverage is improved, but measurement accuracy deteriorates due to the complexity of multiple beam combinations
Solution Approach 1:
The patent segments the measurement process into two distinct stages: first measuring reference signal quality at the beam level, then aggregating these beam-level measurements to derive cell-level measurement results. This segmentation allows the system to maintain beamforming for coverage while obtaining accurate cell-level measurements by processing multiple beam measurements through filtering and selection algorithms.
Solution Approach 2:
The patent introduces a new measurement dimension by measuring reference signals on multiple beam combinations (different transmit beams and receive beams) rather than a single beam. This multi-dimensional measurement approach allows the system to capture signal quality across various spatial directions, then aggregate these measurements to achieve accurate cell-level assessment despite the complexity of individual beam measurements.
2Loss of information
If multiple beam combinations are measured to account for beamforming, then measurement completeness is improved, but processing complexity increases
Solution Approach 1:
The patent performs preliminary filtering and selection of beam measurements before final aggregation. By pre-processing the multiple beam measurement results through filtering algorithms and selecting representative beam measurements, the system reduces the volume of data requiring final processing while maintaining measurement completeness. This preliminary action simplifies the overall processing complexity.
Solution Approach 2:
The terminal device autonomously performs the measurement and processing of multiple beam combinations without requiring complex network-side coordination. The terminal independently measures reference signals on multiple beam combinations, applies filtering algorithms, and derives cell-level measurement results, thereby reducing overall system processing complexity while maintaining measurement completeness.
3Device complexity
If existing RRM measurement methods are used in high-frequency networks, then system simplicity is maintained, but measurement reliability deteriorates due to propagation losses
Solution Approach 1:
The patent changes the measurement parameters by measuring reference signal quality on multiple beam combinations rather than using a single reference signal measurement. This parameter change adapts the existing RRM measurement framework to high-frequency networks by incorporating beamforming-specific measurements, thereby improving measurement reliability while maintaining compatibility with existing system structures.
Solution Approach 2:
The patent creates a universal measurement method that works for both traditional omnidirectional beams and narrow directional beams in high-frequency networks. By defining a flexible measurement framework that can handle multiple beam combinations and aggregate them to cell-level results, the solution maintains system simplicity while improving measurement reliability across different deployment scenarios.
Data Source
AI summary
A method for generating a measurement result, and a device are provided, and the method includes: receiving, by a terminal on a receive beam for each cell, a reference signal sent on a transmit beam of a corresponding cell, and measuring the received reference signal to obtain at least one group of measurement samples for each cell; processing the at least one group of measurement samples for each cell to obtain at least one initial processing value; processing the at least one initial processing value to obtain at least one target processing value; and reporting, by the terminal, a target processing value that meets a preset reporting rule in the at least one target processing value to a base station as a measurement result, or using, by the terminal itself, the target processing value to evaluate cell quality.