UE Traffic Flow Prioritization for Low-Latency Real-Time Packets
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Solution Overview
Problem
Existing wireless communication systems fail to differentiate between real-time and non-real-time internet traffic, leading to unintentional prioritization of non-real-time traffic, which can cause delays in real-time traffic communication, negatively impacting user experience.
Innovation Solution
A user equipment (UE) identifies real-time traffic flows and assigns them higher priority, queuing and transmitting these packets before non-real-time traffic using a first queue, eliminating the need for application-driven prioritization and optimizing resource utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional wireless communication systems transmit data packets without traffic flow differentiation, then the system operation is simple, but real-time traffic experiences delays due to unintentional prioritization of non-real-time traffic
Solution Approach 1:
The patent segments traffic flows into real-time and non-real-time categories using packet detection rules. The communication manager identifies real-time traffic flows by analyzing packet characteristics (source/destination IP addresses, ports, protocols) and applies different queuing policies to each segment, ensuring real-time packets receive priority treatment while maintaining systematic control
Solution Approach 2:
The communication manager acts as an intermediary between the application layer and the wireless transmission layer. It intercepts outgoing data packets, detects whether they belong to real-time traffic flows using predefined rules, and routes them to appropriate queues before transmission, thereby mediating the traffic prioritization without requiring application-layer modifications
2Loss of time
If the system implements traffic flow differentiation and prioritization, then real-time traffic latency is reduced, but the complexity of packet queuing and transmission management increases
Solution Approach 1:
The system performs preliminary detection and classification of traffic flows before packets are queued for transmission. The communication manager establishes detection rules in advance that define characteristics of real-time traffic (such as specific port ranges, protocol types, or IP address patterns), allowing packets to be rapidly categorized and routed to priority queues without complex real-time analysis
Solution Approach 2:
The patent changes the parameter of packet prioritization by introducing priority queues with different transmission weights. Real-time traffic packets are assigned to high-priority queues with higher transmission weights, while non-real-time packets use default queues with lower weights, thereby changing the transmission scheduling parameters to favor real-time traffic without fundamentally altering the transmission mechanism
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may identify, by a first entity of the UE, a first traffic flow of the UE. The UE may provide, from the first entity and to a second entity of the UE, an indication that the first traffic flow is associated with a first priority. The UE may obtain, from the second entity, a first data packet associated with the first traffic flow, wherein the first data packet is queued in a first queue. The UE may obtain, from the second entity, a second data packet associated with a second traffic flow that is associated with a second priority, the first priority being higher than the second priority. The UE may transmit the first data packet prior to transmitting the second data packet. Numerous other aspects are described.