PDCP Packet Size Alignment for Wireless Network Coding
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current wireless communication systems face inefficiencies in packet data convergence protocol (PDCP) communications due to misalignment between PDCP packet sizes and outer coding symbol sizes, leading to increased latency and power consumption from unnecessary retransmissions and network overhead.
Innovation Solution
The method involves generating non-segmented outer coding source symbols and adjusting PDCP packet sizes to match outer coding symbol sizes, with the option of applying zero padding to align them, thereby reducing transmission errors and network overhead.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If PDCP packet sizes are not adjusted to match outer coding symbol sizes, then transmission flexibility is maintained, but transmission errors increase and retransmissions occur more frequently
Solution Approach 1:
The patent applies preliminary action by adjusting PDCP packet sizes to match outer coding symbol sizes before transmission. This pre-alignment prevents transmission errors and retransmissions by ensuring packets are properly sized in advance, resolving the contradiction between transmission reliability and operational complexity.
Solution Approach 2:
The patent employs parameter changes by modifying the size parameter of PDCP packets to align with outer coding symbol requirements. This parameter adjustment enables proper transmission formatting while maintaining system efficiency, addressing the contradiction between reliability and complexity.
2Productivity
If zero padding is applied to align PDCP packet sizes with outer coding symbol sizes, then transmission efficiency improves, but processing overhead increases
Solution Approach 1:
The patent extracts only the necessary zero padding bytes required to align PDCP packets with outer coding symbol sizes. By removing unnecessary processing steps and focusing only on the essential padding operation, the system improves transmission efficiency while minimizing the increase in processing overhead.
3Reliability
If retransmissions are performed to correct transmission errors, then data reliability is maintained, but latency increases and power consumption rises
Solution Approach 1:
The patent applies preliminary action by pre-aligning PDCP packet sizes with outer coding symbol requirements before transmission. This prevents transmission errors that would otherwise require retransmissions, thereby maintaining data reliability while avoiding the latency and power consumption penalties associated with retransmission operations.
4Loss of substance
If PDCP packet sizes are adjusted to match outer coding symbol sizes, then network overhead is reduced, but processing complexity at the transmitter increases
Solution Approach 1:
The patent employs parameter changes by systematically adjusting PDCP packet size parameters to match outer coding symbol sizes. This standardization reduces network overhead by eliminating mismatches and inefficiencies, while the processing complexity increase is offset by the use of systematic parameter alignment rules.
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a transmitting device may obtain a plurality of packet data convergence protocol (PDCP) packets. The transmitting device may generate a plurality of source symbols in accordance with applying a forward error correction encoding to the plurality of PDCP packets, wherein the plurality of source symbols are non-segmented outer coding source symbols. The transmitting device may transmit the plurality of source symbols. Numerous other aspects are described.