Radio Communication Apparatus Multi-Band Delay Profile Timing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In radio communication systems, inter-symbol interference occurs due to timing errors and multi-path propagation delays, leading to degraded communication quality as data between adjacent subframes overlap, and existing technologies fail to detect optimal reception timings for correction.
Innovation Solution
A radio communication apparatus and method that measure delay profiles across multiple frequency bands to determine the path timing of one frequency band based on the time difference between maximum amplitudes in different frequency bands, allowing for the correction of reception timing to reduce inter-symbol interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the receiver receives data based on the timing of a path with large delay, then the reception timing is determined, but inter-symbol interference occurs and communication quality is degraded
Solution Approach 1:
The invention transitions from single-frequency band timing detection to multi-frequency band timing detection. By measuring delay profiles across multiple frequency bands and synthesizing timing information from different dimensions (frequency bands), the system achieves more accurate reception timing determination that accounts for multi-path propagation effects, thereby resolving the contradiction between timing detection and communication quality
Solution Approach 2:
The invention makes the timing detection mechanism universal by applying it across multiple frequency bands simultaneously. The delay profile measurement and timing determination process is performed universally for each frequency band, and the results are synthesized to provide a comprehensive timing solution that works across the entire operating spectrum, improving both timing accuracy and communication reliability
2Loss of time
If data between subframes adjacent to each other overlap, then reception timing is established, but inter-symbol interference occurs
Solution Approach 1:
The invention performs preliminary action by measuring delay profiles across multiple frequency bands before determining the final reception timing. This preliminary multi-band measurement allows the system to predict and prevent inter-symbol interference by establishing accurate timing boundaries that account for multi-path delays, thereby preventing data overlap between adjacent subframes
Solution Approach 2:
The system uses feedback from delay profile measurements in multiple frequency bands to continuously refine and adjust reception timing. By monitoring the delay characteristics across different frequency bands and feeding this information back to the timing determination process, the system dynamically adjusts timing to prevent inter-symbol interference while maintaining efficient data reception
Data Source
AI summary
The present disclosure provides a radio communication apparatus, a radio communication system, a radio communication method, and a program capable of demodulating signals at appropriate reception timings. A radio communication apparatus 11 includes: a measurement unit 111 configured to measure delay profiles of a plurality of frequency bands; and a determination unit 112 configured to determine a path timing of a first frequency band f1 based on a time difference between a first time tm1 indicating a time of a maximum amplitude in the first frequency band f1 of the plurality of frequency bands and a second time tm2 indicating a time of a maximum amplitude in a second frequency band f2 of the plurality of frequency bands.