Decoder-supported Iterative Channel Estimation

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This patent describes a method and receiver device for improving wireless data transmission by enhancing the estimation of the communication channel between transmitter and receiver. Unlike conventional systems where channel estimation and data decoding are separate, it proposes an iterative technique where partial decoding results are fed back to improve channel estimation. This approach leverages redundancy from error-correcting codes to provide more reliable symbol estimates, which in turn help the receiver better adapt to changes or disturbances in the channel (like those caused by physical movement or interference).

Use CasesContent extracted from patent full text and abstract with AI.

• Mobile communication systems (e.g., 4G/5G cellular networks) to improve data reliability for users on the move.
• Wireless sensor networks where robust transmission is needed despite changing environmental conditions.
• Internet of Things (IoT) devices operating in noisy or unreliable RF environments.
• Satellite or deep space communications where channel conditions can be highly variable.
• Industrial automation systems that require stable wireless control and data collection in dynamic environments.

BenefitsContent extracted from patent full text and abstract with AI.

• Improved reliability and lower error rates for data transmission over time-varying or disturbed wireless channels.
• Enhanced robustness against interference, noise, and other channel impairments.
• Potentially higher data throughput and efficiency due to more accurate detection and decoding.
• Better performance for systems that use high-redundancy (error-correcting) coded transmissions, such as those found in modern wireless standards.
• Compatibility with existing forward error correction schemes, making integration straightforward for various digital communication systems.

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Patent Abstract

Embodiments represent a data receiver, wherein the data receiver is designed for receiving a signal, wherein the signal has at least two separate sub-data-packets, wherein the at least two separate sub-data-packets have symbols mapping coded bits resulting from a coding of a data bit string carried out for the at least two separate sub-data-packets together and introducing a redundancy, wherein the data receiver is designed to estimate a channel status of a transmission channel of the signal based on the received signal, in order to obtain first channel status information, wherein the data receiver is designed to demodulate a first set of received symbols from different sub-data-packets using the first channel status information, wherein the first set of received symbols is an actual partial quantity of the received symbols of the at least two sub-data-packets in order to obtain a first set of received coded bits, wherein the first set of received coded bits permits an inference of a first set of coded bits corresponding to the first set of received coded bits on the transmission side, with the utilisation of the transmission-side redundancy-generating coding, wherein the data receiver is designed to decode the first set of received coded bits, to determine a first set of estimated coded bits, with the utilisation of the transmission-side redundancy-generating coding, which corresponds to a first set of transmitted coded bits with a higher level of probability than the received coded bits, and to map the first set of estimated bits as estimated transmission symbols using a mapping rule corresponding to a transmission-side mapping rule in order to obtain a first set of estimated transmission symbols, wherein the data receiver is designed to determine second channel status information using the first set of estimated transmission symbols.