Wireless Packet Indicators for Interference-Aware Simple Receivers
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Solution Overview
Problem
Simple radio chips used in data receivers lack the ability to determine the quality of received data and channel interference, leading to inefficient channel decoding and high energy consumption, especially in energy-harvesting nodes with limited computational resources.
Innovation Solution
Incorporating an indicator within the data packet that allows the data receiver to determine the degree of interference, enabling weighting and improved channel decoding of channel-coded payload data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If simple radio chips are used in data receivers, then device complexity and cost are reduced, but the ability to determine channel quality and data quality is lost
Solution Approach 1:
The patent introduces reference indicators as intermediary elements that mediate between the simple receiver chip and the external controller. These reference indicators are known to both transmitter and receiver, allowing the external controller to compare received indicators with reference values and determine channel quality without requiring complex processing in the receiver chip itself.
Solution Approach 2:
The patent extracts the channel quality determination function from the receiver chip and relocates it to an external controller. The receiver chip only needs to perform simple reception and output decided bits, while the external controller performs the quality assessment by comparing received reference indicators with known reference values.
2Measurement precision
If exact channel analysis is performed in an external controller, then channel quality determination is improved, but energy consumption increases significantly
Solution Approach 1:
The patent applies partial action by having the external controller perform channel quality determination only when necessary, rather than continuously. The system uses reference indicators to trigger quality assessment only when channel conditions may have changed, reducing unnecessary processing and energy consumption while maintaining adequate measurement precision.
Solution Approach 2:
The patent implements feedback mechanisms where the external controller determines channel quality based on received reference indicators and uses this information to adjust decoding strategies. This feedback loop allows the system to perform detailed analysis only when channel conditions warrant it, optimizing the balance between measurement precision and energy consumption.
3Device complexity
If simple receiver chips providing demodulated bit sequences are used, then device complexity is reduced, but channel decoding efficiency decreases
Solution Approach 1:
The patent applies preliminary action by having the transmitter embed reference indicators in the transmitted signal before modulation. These reference indicators are processed through the channel along with the data, allowing the receiver to assess channel quality before attempting decoding, thereby improving decoding efficiency without increasing receiver chip complexity.
Solution Approach 2:
The reference indicators serve as intermediaries that carry channel quality information through the transmission channel. By comparing these indicators with known reference values at the receiver side, the system can determine channel quality and adjust decoding strategies accordingly, improving decoding efficiency while maintaining simple receiver hardware.
Data Source
AI summary
Embodiments provide a method for transmitting, according to which the payload data included in the data packet is provided with at least one indicator, such that a degree of interference of the received data (e.g. already decided bits) provided by the receiver for receiving data packets (e.g. a simple cost-effective radio chip) can be determined based on the at least one indicator, such that the determined degree of interference can be considered during channel decoding of the channel-coded payload data for increasing efficiency of channel decoding.