PAPR Signaling Tolerance Indication for Wireless Interference
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Solution Overview
Problem
Current wireless communication systems face challenges in managing peak-to-average-power-ratio (PAPR) interference, particularly in multi-user environments, where existing methods like tone reservation signaling and space frequency multi-user signaling do not efficiently optimize power amplification and interference tolerance.
Innovation Solution
The method involves transmitting an indication of tolerance for interference associated with PAPR signaling, including space frequency multi-user (SFMU) signaling or tone reservation signaling, allowing for channel response-based optimizations that adjust PAPR reduction signals across subcarriers, thereby improving power efficiency and reducing interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If tone reservation signaling or space frequency multi-user signaling is applied to reduce PAPR, then power amplification efficiency is improved, but interference tolerance and computational resources are worsened
Solution Approach 1:
The patent applies parameter changes by allowing dynamic adjustment of PAPR reduction techniques based on channel conditions and interference tolerance thresholds. The base station selects between tone reservation signaling and space frequency multi-user signaling based on real-time channel state information, optimizing the balance between power amplification efficiency and computational resource consumption.
Solution Approach 2:
The system implements dynamics by making the PAPR reduction method adaptive rather than fixed. The base station dynamically switches between different signaling techniques based on current network conditions, and the user equipment dynamically adjusts its interference tolerance parameters based on received signal characteristics, enabling optimal performance across varying operational environments.
2Loss of energy
If PAPR signaling is applied to improve power efficiency, then energy consumption is reduced, but interference management complexity increases
Solution Approach 1:
The patent implements feedback mechanisms where user equipment transmits interference tolerance indications to the base station, and the base station adjusts PAPR signaling parameters accordingly. This closed-loop feedback system enables efficient energy management while keeping interference management complexity manageable through automated adaptation.
Solution Approach 2:
The system applies local quality by tailoring PAPR reduction parameters to specific user equipment and channel conditions rather than using uniform settings. Each user's interference tolerance characteristics are considered individually, allowing optimized energy efficiency for each device while maintaining overall system simplicity.
3Reliability
If channel response-based SFMU signaling or tone reservation signaling is applied, then PAPR reduction is optimized, but network resource consumption increases
Solution Approach 1:
The patent applies partial action by implementing PAPR reduction techniques selectively rather than universally. The base station applies channel response-based signaling only to users who require it based on their interference tolerance thresholds and channel conditions, avoiding unnecessary resource consumption for users who can tolerate higher PAPR without performance degradation.
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit an indication of a tolerance for interference associated with peak-to-average-power-ratio (PAPR) signaling, the PAPR signaling including one or more of space frequency multi-user (SFMU) signaling or tone reservation signaling. The UE may receive, via a downlink channel, a downlink communication having the PAPR signaling applied to subcarriers of the downlink channel based at least in part on the indication of the tolerance for interference. Numerous other aspects are described.