Wireless Receiver Interference Weighting for Simple Chip Decoding

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Solution Overview

Problem

Simple receiver chips used in energy-efficient data transmission systems lack the ability to determine the quality of received data and channel conditions, leading to inefficiencies in channel decoding and increased energy consumption.

Innovation Solution

Incorporating indicators within data packets that allow the data receiver to determine the degree of interference, enabling weighting and improved channel decoding of channel-coded user data.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If simple receiver chips are used to reduce cost and energy consumption, then device complexity and energy usage are reduced, but the ability to determine channel quality and data reception quality is lost

Engineering Contradiction:

Improvereceiver chip structureVSAvoidchannel quality determination

Core Design Contradiction:

Device complexityVSMeasurement precision

Solution Approach 1:

The patent introduces reference indicators as intermediary elements that mediate between the simple receiver chip and the channel quality assessment. These reference indicators are known to both transmitter and receiver, allowing the receiver to compare received indicators against references to determine interference levels without requiring complex receiver architecture

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent replaces the mechanical/physical approach of using complex receiver hardware for channel quality detection with an information-based approach using indicators and comparisons. Instead of relying on sophisticated signal processing hardware, the system uses software-based indicator comparison to achieve channel quality assessment

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Measurement precision

If exact channel analysis is performed in an external controller to improve reception quality, then measurement precision is improved, but energy consumption increases significantly

Engineering Contradiction:

Improvechannel analysis accuracyVSAvoidpower consumption

Core Design Contradiction:

Measurement precisionVSUse of energy by moving object

Solution Approach 1:

The patent applies partial action by performing only the essential channel quality assessment using indicators rather than complete channel analysis. This partial approach provides sufficient information for weighted decoding without the full energy cost of comprehensive channel analysis in external controllers

Inventive Principle:

Principle #16Partial or excessive action

Solution Approach 2:

The patent changes the parameter of channel quality assessment from requiring full signal processing to using indicator comparison. By transforming the assessment method to rely on predefined reference indicators rather than raw signal analysis, the system achieves adequate measurement precision with reduced computational and energy requirements

Inventive Principle:

Principle #35Parameter changes

3Reliability

If indicators are added to data packets to enable interference determination, then channel decoding effectiveness is improved, but device complexity increases

Engineering Contradiction:

Improvechannel decoding effectivenessVSAvoiddata packet structure

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent applies preliminary action by pre-defining reference indicators at the transmitter before transmission. These reference indicators are prepared in advance and embedded in the data packets, enabling the receiver to perform quality assessment without requiring complex real-time analysis during reception

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentEP3329621B1Wireless transmission method for simple receivers

Publication Date: 2019.09.25 FRAUNHOFER GESELLSCHAFT ZUR FORDERUNG DER ANGEWANDTEN FORSCHUNG EV

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AI summary

Illustrative embodiments of the invention provide a data receiver for receiving useful data sent by a data transmitter using at least one data packet via a communication channel. The data receiver comprises an arrangement for receiving data packets which is designed to receive the at least one data packet, said at least one data packet comprising channel-encoded useful data and at least one indicator, and the arrangement for receiving data packets being designed to emit, for the at least one received data packet, received data which comprise the received channel-encoded useful data and the at least one received indicator. The data receiver also comprises an arrangement for further processing received channel-encoded useful data and designed to determine, from said received data, the received channel-encoded useful data and the at least one received indicator, and to compare the at least one received indicator of the at least one received data packet to at least one reference indicator that is known to the data transmitter and data receiver, and, based on this comparison between the at least one received indicator and the at least one reference indicator, to determine at least one degree of interference of the received channel-encoded useful data of the at least one received data packet, wherein the arrangement for further processing received channel-encoded useful data is designed to weight the received channel-encoded useful data of the at least one received data packet on the basis of the determined at least one interference degree, for a decoding step, and to carry out channel encoding dependent on said weighting of the received channel-encoded useful data, in order to obtain the useful data.