Dynamic Robust Downlink Packet Delivery via Content-Based MCS Selection
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Solution Overview
Problem
Current cellular networks lack the ability to dynamically select appropriate modulation and coding schemes for data packets based on their content, leading to inefficient data delivery, particularly for important packets like DNS queries, which can result in increased internet access delays and reduced network performance.
Innovation Solution
Implementing a system in which evolved node B base stations inspect data packets to determine their application type and state, allowing for the selection of a robust modulation and coding scheme (MCS) for transmission, ensuring reliable delivery of critical packets using a conservative MCS with a lower index for improved reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single modulation and coding scheme is used for all data packets, then the system complexity is reduced, but the delivery reliability for critical packets deteriorates
Solution Approach 1:
The patent applies local quality by differentiating the treatment of data packets based on their content and importance. Critical packets (such as DNS queries) are assigned robust modulation and coding schemes with lower indices, while less critical packets use standard schemes. This localized differentiation ensures high reliability for important packets without uniformly increasing complexity across all packet transmissions.
Solution Approach 2:
The system dynamically selects modulation and coding schemes based on real-time inspection of packet content and application state. The base station evaluates packet characteristics and adjusts the MCS selection accordingly, enabling adaptive response to varying network conditions and packet importance levels, thus resolving the contradiction between reliability and complexity.
2Reliability
If dynamic selection of modulation and coding schemes is implemented, then the delivery reliability for critical packets is improved, but the processing time and system complexity increase
Solution Approach 1:
The system performs preliminary inspection of packet content and application state before finalizing the modulation and coding scheme selection. By pre-evaluating packet characteristics and preparing appropriate MCS configurations in advance, the base station reduces real-time processing delays while maintaining high reliability for critical packets.
3Productivity
If all data packets are treated generally without content inspection, then the network performance is maintained, but the internet access delay for critical packets increases
Solution Approach 1:
The patent implements local quality by inspecting packet content and application state to identify critical packets, then applying enhanced delivery mechanisms specifically to those packets. This targeted approach maintains overall network throughput while reducing internet access delay for critical packets like DNS queries, as they receive prioritized handling with robust MCS selection.
Data Source
AI summary
A data packet for delivery to a user equipment can be inspected. Based on the inspecting, whether to use a robust downlink delivery can be determined. Based on the determining, a robust modulation coding scheme (MCS) for the data packet can be selected. The data packet can be transmitted utilizing the selected robust MCS. At least one of the inspecting, the determining, the selecting, and the transmitting is performed using at least one processor of at least one computing system. Related apparatus, systems, techniques, and articles are also described.