External Radio Receiver Channel Estimation for Signal Quality
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Solution Overview
Problem
Existing radio receivers face challenges in achieving adequate signal quality due to multipath reception, particularly in mobile and stationary environments, where internal channel estimation methods often fail to correct for distortion effectively.
Innovation Solution
An external radio receiver communicates with an internal receiver to perform channel estimation for error correction, providing improved channel estimation data to enhance internal processing, and can operate independently to provide high-quality signal decoding, leveraging advanced computing power and sensitivity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If internal channel estimation is performed in the radio receiver, then error correction can be carried out, but adequate signal quality cannot be achieved due to multipath reception
Solution Approach 1:
The patent combines internal reception processing with external reception processing by merging the channel estimation results from an external radio receiver with the internal channel estimation. This allows the internal receiver to benefit from the external receiver's superior channel estimation capability while maintaining its own error correction functionality, thereby resolving the contradiction between reliability and measurement precision.
Solution Approach 2:
The patent introduces an external radio receiver as an intermediary that performs channel estimation and provides improved channel characteristics to the internal receiver. This intermediary component enables the internal receiver to achieve better signal quality without sacrificing its error correction capability, as the external receiver's results serve as a mediator to enhance the overall reception processing.
2Measurement precision
If external reception processing is added to improve channel estimation, then signal quality improves, but device complexity increases
Solution Approach 1:
The patent segments the reception processing function into internal reception processing and external reception processing. The internal receiver handles basic error correction while the external receiver focuses on channel estimation. This segmentation allows each component to specialize in its respective function, improving channel estimation accuracy without requiring the entire system to be overly complex.
Solution Approach 2:
The external radio receiver serves multiple functions: it performs channel estimation, provides improved channel characteristics to the internal receiver, and can operate independently when needed. This multi-functionality justifies the added complexity by providing versatile capabilities that benefit the overall reception system.
3Measurement precision
If the external radio receiver operates autonomously, then high-quality signal decoding is achieved, but loss of time occurs during signal switching
Solution Approach 1:
The patent implements preliminary action by continuously performing channel estimation in the external receiver and maintaining ready-to-use channel characteristics. This allows the system to quickly switch to autonomous external operation when needed, minimizing signal switching time while maintaining high decoding quality.
Solution Approach 2:
The patent introduces dynamics by allowing the system to flexibly switch between internal and external reception processing modes based on signal conditions. The receiver can dynamically adjust which processing path to use, enabling quick transitions that minimize time loss while maintaining optimal signal decoding quality.
Data Source
AI summary
Radio signals are received in a receiving device having an internal radio receiver that is designed to carry out a channel estimation for error correction, in the course of a receiving process of the radio signals received in a radio channel. The internal radio receiver communicates with an external radio receiver, which receives the same radio signals as the internal radio receiver at the measuring time, carries out a channel estimation for error correction, and transmits the channel estimation to the internal radio receiver, wherein the internal radio receiver uses the channel estimation of the external radio receiver in order to improve its own channel estimation.