Core Network Delay Information for Air Interface Scheduling
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Solution Overview
Problem
Current methods for determining air interface transmission delay in wireless communications are inaccurate due to the use of a default core network transmission delay, which fails to account for varying network conditions and distances between base stations and user plane functions.
Innovation Solution
A data transmission control method where a first core network device sends delay information representing the user plane data path to an access network device, allowing it to determine the actual air interface transmission delay, thereby improving scheduling accuracy and efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a default core network transmission delay value is used for air interface scheduling, then the scheduling process is simple and fast, but the air interface transmission delay accuracy deteriorates because the default value cannot represent actual transmission delay under varying network conditions and distances
Solution Approach 1:
The patent applies preliminary action by having the access network device pre-obtain actual core network transmission delay information through measurement or acquisition before scheduling operations. This allows the system to use accurate, real delay values in advance, eliminating the need to rely on default values while maintaining scheduling efficiency. The delay information is prepared beforehand and stored for subsequent scheduling decisions.
Solution Approach 2:
The patent implements parameter changes by replacing the static default delay parameter with dynamic actual delay parameters. The system acquires and uses real transmission delay values that reflect current network conditions, distance factors, and path characteristics. This parameter substitution enables accurate delay representation while allowing the scheduling algorithm to adapt to varying network states.
2Measurement precision
If actual core network transmission delay information is obtained and used for scheduling, then air interface transmission delay accuracy improves, but the system complexity and measurement overhead increase
Solution Approach 1:
The patent applies self-service by enabling the access network device to autonomously acquire and measure its own core network transmission delay characteristics. The device performs self-measurement of delay parameters without requiring external intervention or complex centralized measurement systems. This self-service approach reduces overall system complexity while maintaining accurate delay information for scheduling decisions.
3Productivity
If actual transmission delay information is acquired instead of using default values, then data transmission efficiency improves due to accurate scheduling, but the time and resources required for delay measurement and acquisition increase
Solution Approach 1:
The patent applies preliminary action by acquiring delay information in advance before actual data transmission occurs. The access network device obtains and caches core network transmission delay values proactively, so that when scheduling decisions are needed, accurate delay information is already available. This eliminates the need for real-time delay measurement during data transmission, thus avoiding time loss while maintaining high transmission efficiency.
Data Source
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AI summary
Disclosed are a control data transmission method, a network device and a storage medium. The method comprises: a first core network device sending first delay information to a first access network device (S11), wherein the first delay information represents delay in transmitting data on a first path, and the first path is a user plane data path between a second core network device and the first access network device.