Signal Forwarding Device Feedback Mechanism
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Solution Overview
Problem
Communication systems face challenges in effectively providing feedback from user equipment (UE) devices to destination devices through signal forwarding devices, as existing technologies like repeaters and relays often lack efficient mechanisms for decoding and retransmitting signals, leading to suboptimal performance in channel quality and resource scheduling.
Innovation Solution
A wireless communication system that utilizes a signal forwarding device to receive downlink signals from an origination device, extract a destination identifier, and transmit a forwarded signal based on the received signal, which may include channel feedback reports and acknowledgment responses, allowing for the selection of appropriate signal forwarding schemes such as amplify and forward, decode and forward, or partial decode and forward, to optimize communication resource allocation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a repeater is used to forward signals, then signal transmission is simplified, but signal processing capability is limited
Solution Approach 1:
The system dynamically selects between repeater mode (simple amplification) and relay mode (full decoding and re-encoding) based on channel conditions and traffic requirements, allowing the forwarding device to adapt its processing capability to match the operational needs
2Adaptability or versatility
If relay stations perform complete decoding and re-encoding, then signal processing capability is improved, but processing delay increases
Solution Approach 1:
The relay station performs partial decoding only when necessary to extract control information or feedback, while leaving data payload forwarding to simpler amplification processes, thus achieving necessary processing capability while minimizing overall processing delay
Solution Approach 2:
The signal processing is segmented into control plane operations (which require full decoding for feedback extraction) and user plane operations (which can use simpler amplification), allowing different processing depths for different signal components
3Measurement precision
If feedback reports are transmitted through the forwarding device, then channel quality information is obtained, but device complexity increases
Solution Approach 1:
The feedback information is transmitted through the forwarding device as an intermediary carrier, but the actual feedback processing and channel quality extraction is performed by the destination device, keeping the forwarding device relatively simple while still enabling precise channel quality measurements
Data Source
AI summary
A downlink signal is received at an origination device (e.g., a user equipment (UE) device). In response to receiving the downlink signal, the origination device transmits an uplink signal to a signal forwarding device. The uplink signal received, at the signal forwarding device, from the origination device is a “received signal,” which contains a destination identifier. The signal forwarding device transmits a “forwarded signal” to a destination associated with the destination identifier. The “forwarded signal” is based on the contents of the “received signal” and/or any information that may be ascertained from the “received signal.” The received signal may also contain a downlink channel feedback report and/or an acknowledgment response. Based on the forwarded signal, a signal forwarding scheme may be selected.