Satellite Measurement Feedback Configuration for Terminal Capability
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Solution Overview
Problem
In satellite communication systems, the use of cellular communication measurement feedback mechanisms leads to unnecessary measurements by multiple terminals, wasting communication resources and increasing power consumption due to the long distance and wide coverage, which hampers communication quality improvement.
Innovation Solution
A method and apparatus for configuring measurement feedback based on terminal capability information, allowing selective activation of measurement feedback for certain terminals while others are exempt, using network devices to determine and send appropriate feedback configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If measurement feedback is performed for each resource block separately, then measurement precision is improved, but device complexity and processing time increase
Solution Approach 1:
The patent segments the feedback process into two stages: first dividing the wideband channel into multiple subbands for independent measurement, then further dividing each subband into multiple resource blocks. This segmentation allows precise measurement of individual resource blocks while managing complexity through hierarchical organization of measurement tasks.
Solution Approach 2:
The patent performs preliminary actions by measuring and quantizing channel state information for resource blocks before actually transmitting feedback signals. The quantized values are prepared in advance and stored, allowing the feedback transmission to be more efficient and less complex, as the processing is done beforehand rather than in real-time during feedback transmission.
2Measurement precision
If measurement feedback is performed for each resource block separately, then measurement precision is improved, but feedback transmission time increases
Solution Approach 1:
The patent merges the feedback transmission of multiple resource blocks into a single unified feedback signal. Instead of transmitting separate feedback signals for each resource block, the system combines all quantized measurement values into one feedback message, reducing the total transmission time while maintaining the precision of individual resource block measurements through the structured organization of the feedback data.
Solution Approach 2:
The patent performs preliminary quantization and preparation of feedback data for multiple resource blocks before transmission. By pre-processing and organizing the measurement data into a structured format, the actual transmission phase is accelerated, reducing the time required to send feedback without compromising measurement precision.
3Productivity
If wideband channel state information is measured and fed back, then system overhead is reduced, but measurement precision for specific resource blocks deteriorates
Solution Approach 1:
The patent segments the wideband channel into multiple subbands and further divides each subband into multiple resource blocks. This segmentation allows the system to measure and feedback precise channel state information for each resource block while maintaining the overall wideband context. The hierarchical segmentation enables both high precision for specific resource blocks and efficient system-wide management.
Solution Approach 2:
The patent applies local quality by measuring and feedbacking channel state information at different levels of granularity - both for the overall wideband channel and for specific resource blocks within subbands. This allows the system to optimize precision where needed (at resource block level) while maintaining efficiency at higher levels, with each level serving its specific functional requirements.
Data Source
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AI summary
The present disclosure relates to a measurement feedback method and apparatus, a network device, a terminal, and a storage medium, the measurement feedback method comprising: a service satellite receiving capability information of a terminal and, in response to the terminal capability information, determining measurement feedback configuration information for the terminal; and sending the measurement feedback configuration information to the terminal. The embodiments of the present disclosure effectively save the signalling overheads and power consumption of terminal measurement feedback.