Rateless Code Packet Selection for Lower Wireless PAPR
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wireless communication systems face challenges in managing high peak-to-average power ratio (PAPR), which can lead to inefficiencies and limitations in power management, particularly in advanced technologies like 5G and New Radio (NR), affecting signal transmission quality and device performance.
Innovation Solution
The implementation of rateless codes, which generate a set of packets with varying combinations to select those with the lowest PAPR, resulting in optimized power transmission by selecting packets with the lowest PAPR for consecutive subsets, thereby reducing overall power fluctuations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If conventional wireless communication systems transmit data packets, then data transmission is achieved, but high peak-to-average power ratio (PAPR) causes power management inefficiencies and signal transmission quality degradation
Solution Approach 1:
The patent changes the parameter of packet combination by generating rateless code packets that are linear combinations of source packets. By selecting packets with lowest PAPR from different combinations, the system optimizes power transmission characteristics while maintaining signal quality through the rateless coding structure.
Solution Approach 2:
The system dynamically selects packets with lowest PAPR from multiple possible combinations generated by rateless codes. This dynamic selection process allows the system to adapt to different transmission conditions and optimize power usage in real-time while maintaining reliable signal transmission.
2Loss of energy
If rateless codes generate multiple packet combinations, then PAPR reduction is achieved, but system complexity increases due to packet selection processing
Solution Approach 1:
The system performs preliminary action by pre-generating multiple rateless code packets with different combinations before transmission. The packets are organized into consecutive subsets, and the selection process simply identifies packets with lowest PAPR from these pre-generated combinations, reducing the complexity of real-time decision-making.
Solution Approach 2:
The patent segments the rateless code packets into consecutive subsets, where each subset contains packets formed from specific combinations of source packets. This segmentation allows the system to manage and select packets from organized groups rather than handling all possible combinations at once, reducing processing complexity.
3Loss of energy
If packets with lowest PAPR are selected from consecutive subsets, then power efficiency is improved, but transmission time increases due to packet selection and generation overhead
Solution Approach 1:
The system maintains continuity of useful action by continuously generating rateless code packets and selecting optimal packets from consecutive subsets during the transmission process. The rateless coding allows for continuous packet generation without requiring complete transmission cycles, maintaining productive activity while optimizing power usage.
Solution Approach 2:
The patent applies partial action by selecting only the necessary number of packets with lowest PAPR from each consecutive subset rather than processing all possible combinations. This partial selection approach reduces processing time while still achieving significant PAPR reduction and power efficiency improvements.
Data Source
AI summary
The present invention discloses techniques and apparatuses for reducing a peak-to-average power ratio (PAPR) via rateless codes. In some aspects, a transmitter may generate, from a set of source packets, a set of rateless code packets that each correspond to a different combination of one or more of the set of source packets. The transmitter may select, from each subset of consecutive packets in the set of rateless code packets, one or more packets with a lowest PAPR among respective PAPRs associated with each packet included in the respective subset of consecutive packets. The transmitter may transmit a set of output packets that includes the one or more packets selected from each subset of consecutive packets in the set of rateless code packets. Numerous other aspects are described.