Signal Processing Device Selective Layer Output
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Solution Overview
Problem
The use of Layered Division Multiplexing (LDM) technologies for efficient radio wave utilization leads to a heavy processing load in signal reception, increasing power consumption in devices due to the need to decode both core and enhanced layers, even when only the enhanced layer data is desired.
Innovation Solution
A signal processing device that acquires identification information for decoded signals, decodes the core layer first, and then decodes the enhanced layer based on the core layer's result, outputting only the enhanced layer data to the post-stage processing unit, thereby avoiding unnecessary processing and reducing power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If LDM technology is used for efficient radio wave utilization, then radio wave efficiency is improved, but processing load increases
Solution Approach 1:
The patent extracts only the necessary decoded data (enhanced layer or core layer) based on identification information, discarding unnecessary data. This reduces the processing load on post-stage processing units while maintaining radio wave utilization efficiency through selective data output.
Solution Approach 2:
The patent dynamically adjusts the output based on identification information, switching between outputting enhanced layer data, core layer data, or both. This dynamic adaptation reduces processing load while maintaining efficient radio wave utilization according to specific reception requirements.
2Reliability
If both core layer and enhanced layer are decoded, then data completeness is improved, but power consumption increases
Solution Approach 1:
The patent extracts and outputs only the required layer data based on identification information, avoiding unnecessary decoding and processing of the other layer. This reduces power consumption while maintaining data completeness for the specific service requirement.
Solution Approach 2:
The patent changes the output parameter based on identification information, selectively outputting enhanced layer data, core layer data, or both. This parameter adjustment reduces power consumption by processing only what is necessary while ensuring data completeness for the required service.
3Adaptability or versatility
If enhanced layer data is processed, then service quality is improved, but processing time increases
Solution Approach 1:
The patent performs preliminary decoding of both core layer and enhanced layer data, then selectively outputs only the required data based on identification information. This preliminary action reduces processing time for post-stage units while maintaining service quality through selective high-quality data output.
Solution Approach 2:
The patent extracts only the necessary enhanced layer data based on identification information, discarding unnecessary core layer data. This extraction reduces processing time in post-stage units while maintaining service quality through selective output of the required high-quality enhanced layer data.
Data Source
AI summary
A signal processing device includes an acquisition unit that acquires identification information associated with data obtained by decoding a reception signal that includes a signal included in a first layer and a signal included in a different layer and superimposed on the signal of the first layer in a power axis direction, the data being output to a post-stage processing unit, a decoding unit that decodes the signal of the different layer on the basis of a result of decoding of the signal of the first layer after the decoding of the signal of the first layer, and an output control unit that outputs data obtained by decoding the signal of the different layer to the post-stage processing unit without outputting data obtained by decoding the signal of the first layer to the post-stage processing unit, in a case where data identified by the identification information is data obtained by decoding the signal of the different layer.