Dual-encoding scheme for robust relaying information
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Solution Overview
Problem
Communication systems face processing delays and inefficiencies due to the need for signal forwarding devices to encode data before transmitting it to destination devices, especially in scenarios where channel conditions vary between the anchor base station and the relay node.
Innovation Solution
Implementing a dual-encoding scheme where the origination device transmits dual-encoded data, with separate encoding parameters for each communication link, allowing the signal forwarding device to bypass encoding and directly transmit the encoded data to the destination device, thereby reducing processing delays and improving data delivery robustness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the signal forwarding device decodes and re-encodes the incoming signal, then the data delivery robustness is improved, but the processing delay increases
Solution Approach 1:
The patent extracts the encoding function from the signal forwarding device and places it at the base station. The base station performs dual encoding with different encoding parameters for the first link (base station to signal forwarding device) and the second link (signal forwarding device to destination device). This extraction eliminates the need for the signal forwarding device to perform decoding and re-encoding operations, thereby reducing processing delay while maintaining data delivery robustness through the dual-encoding scheme that accounts for varying channel conditions.
2Adaptability or versatility
If the signal forwarding device performs complete decoding of the incoming signal, then the adaptability to different channel conditions is improved, but the device complexity increases
Solution Approach 1:
The patent applies preliminary action by having the base station perform dual encoding before the signal reaches the signal forwarding device. The base station encodes the data using two different encoding parameters that are selected based on predicted channel conditions for the first link and the second link. This preliminary encoding action allows the signal forwarding device to simply forward the encoded data without needing to perform complex decoding and re-encoding operations, thereby reducing device complexity while maintaining adaptability to varying channel conditions through the pre-selected encoding parameters.
Data Source
AI summary
An origination device (e.g., a base station) receives relaying information from a signal forwarding device in a grant or a broadcast message. The relaying information can be information pertaining to channel conditions and/or quality (e.g., a Channel Quality Indicator) of a first communication link between the signal forwarding device and a destination device, and/or an encoding rate based on channel conditions associated with the first communication link. The origination device utilizes the relaying information to determine a first set of encoding parameters that correspond to channel conditions associated with the first communication link between the signal forwarding device and a destination device. The origination device encodes a first set of data according to the first set of encoding parameters and transmits the encoded first set of data to the signal forwarding device. The signal forwarding device transmits the encoded first set of data to the destination device.