Time-Domain CSI Reporting for Low-Overhead Positioning
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Solution Overview
Problem
The reporting of time-domain channel state information consumes a large quantity of air interface resources due to its large data size, posing a challenge in conventional communication systems.
Innovation Solution
Performing processing on the time-domain channel state information to reduce its data size before reporting, thereby reducing the air interface resources required for transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If time-domain channel state information is reported directly without processing, then positioning precision is maintained, but air interface resource consumption increases
Solution Approach 1:
The patent extracts only the essential features from the complete time-domain channel state information. By identifying and retaining key parameters that are most critical for positioning accuracy while discarding redundant data, the system achieves both reduced resource consumption and maintained positioning precision.
Solution Approach 2:
The patent transforms the original time-domain channel state information by changing its parameters through processing operations. This includes converting the data format, adjusting the resolution, and modifying the representation to reduce the data size while preserving the essential information needed for accurate positioning calculations.
2Loss of energy
If time-domain channel state information is processed to reduce data size, then air interface resource consumption decreases, but information loss may occur
Solution Approach 1:
The patent introduces an intermediary processing step that acts as a mediator between the original channel state information and the final reporting data. This intermediary process selectively filters and transforms the information, ensuring that only the most relevant features are retained for positioning purposes while eliminating redundant data.
Solution Approach 2:
The patent performs preliminary processing on the time-domain channel state information before reporting. By pre-identifying and extracting the critical features in advance, the system prepares the data in an optimized format that reduces subsequent resource consumption while ensuring that no essential information is lost for the positioning calculation.
3Measurement precision
If complete time-domain channel state information is transmitted, then positioning accuracy is ensured, but transmission time increases
Solution Approach 1:
The patent extracts only the critical components of the time-domain channel state information that are essential for positioning accuracy. By removing unnecessary data elements, the system significantly reduces the transmission time while maintaining the positioning precision required for accurate terminal location determination.
Solution Approach 2:
The patent applies partial action by transmitting only the necessary portion of the channel state information rather than the complete dataset. This selective transmission approach reduces the overall transmission time while providing sufficient information for accurate positioning, avoiding the excess of transmitting all available data.
Data Source
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AI summary
The present application belongs to the technical field of communications. Disclosed are an information transmission method and apparatus, an information processing method and apparatus, and a terminal and a network-side device. The information transmission method in the embodiments of the present application comprises: a first device performing a first instance of processing on first time-domain channel state information, so as to obtain second time-domain channel state information, wherein the data volume of the first time-domain channel state information is greater than the data volume of the second time-domain channel state information; and the first device sending first information to a first node, wherein the first information is information related to the second time-domain channel state information, and the first time-domain channel state information is time-domain channel state information that is obtained through measurement by the first device on the basis of a reference signal.