Uplink Packet Scheduling by Logical Channel QoS Marking
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Solution Overview
Problem
In 5G mobile communication, scheduling data flows based on priority leads to inefficient use of air interface resources and increased network costs due to prioritizing less important data, affecting user experience and network congestion, and the existing QoS policy causes delays in data transmission.
Innovation Solution
Implementing air interface scheduling using data packets as a granularity by identifying and prioritizing data packets with specific transmission quality requirements through logical channels and buffer status reports (BSRs) to ensure timely transmission of important data packets.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If data flow is used as scheduling granularity with high priority requirement, then transmission quality of important data is improved, but air interface resources are wasted and network costs increase
Solution Approach 1:
The patent segments the data flow into individual data packets, each with its own priority identifier. Instead of treating the entire data flow as high priority, only packets marked with high priority identifiers (such as attack actions in games) receive preferential scheduling. This segmentation allows fine-grained control where each packet is scheduled independently based on its specific importance, avoiding the waste of resources on low-importance packets while ensuring timely transmission of critical data.
2Reliability
If data flow is used as scheduling granularity, then transmission quality of important data is improved, but network congestion increases and user experience deteriorates
Solution Approach 1:
The patent divides the data flow into discrete packets with individual priority markings. The base station schedules each packet based on its priority identifier rather than treating the entire flow uniformly. This allows critical packets (e.g., attack actions) to be transmitted promptly while non-critical packets (e.g., walking actions) are scheduled during idle periods or when resources are available, thereby maintaining network throughput and reducing congestion while ensuring transmission quality for important data.
3Reliability
If QoS policy is applied through operator PCF/PCRF, then service quality control is improved, but transmission delay increases
Solution Approach 1:
The patent implements preliminary action by having the terminal device mark data packets with priority identifiers before transmission. The base station uses these pre-marked identifiers to immediately determine scheduling decisions without needing to query external QoS policies during transmission. This eliminates the delay caused by PCF/PCRF policy queries and real-time negotiations, as the priority information is already embedded in the packets, enabling fast scheduling decisions while maintaining service quality control.
Data Source
AI summary
A data transmission method includes obtaining a first data packet generated by a first application running on a user equipment; using the first data packet as a to-be-transmitted data packet on a first logical channel (LC) when the first data packet carries a first identifier indicating that the first data packet needs to be sent on an air interface according to a first transmission quality requirement; sending, to a base station, a first buffer status report (BSR) that includes indication information of the first transmission quality requirement for allocating a first air interface resource to the first LC according to the first transmission quality requirement; and sending, to the base station, the to-be-transmitted data packet on the first LC using the first air interface resource.