Radio Resource Scheduling via Latency Prediction
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Solution Overview
Problem
In mobile communication networks, predicting and managing latency fluctuations in radio resource allocation between terminals and servers is challenging, leading to inefficiencies in IP packet transmission, especially in dynamic radio wave environments.
Innovation Solution
A radio resource scheduling apparatus that calculates expected latency and allocates resources by reflecting this prediction, informing both the terminal and server to optimize packet transfer efficiency, incorporating a communication unit, latency calculation unit, scheduling unit, and control unit to manage resource allocation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the server directly receives information on available radio resources from the terminal, then the server can determine packet transfer parameters, but the transmission of this information introduces latency that deteriorates the accuracy of radio resource availability
Solution Approach 1:
The terminal predicts future radio resource availability and proactively provides this predicted information to the server in advance, before the actual resource allocation occurs. This preliminary action allows the server to prepare packet transfer parameters ahead of time, reducing the impact of latency on accuracy.
Solution Approach 2:
Instead of the server measuring and reporting radio resource availability back to itself through the terminal (which introduces round-trip latency), the terminal itself performs the measurement and prediction, then provides this information to the server. This inversion eliminates the redundant round-trip communication delay.
2Measurement precision
If the server carries out reestimation of available radio resources, then the accuracy of resource information is improved, but the load on the server increases and IP packet transmission efficiency deteriorates
Solution Approach 1:
The terminal autonomously performs the measurement and prediction of radio resource availability, serving itself rather than requiring the server to perform reestimation. This transfers the computational burden from the server to the terminal, maintaining accuracy while preserving server productivity for packet transmission tasks.
Solution Approach 2:
The terminal acts as an intermediary that measures radio resource conditions locally and provides this information to the server, eliminating the need for the server to directly reestimate resources. This intermediary role maintains measurement accuracy while preventing server overload.
3Productivity
If radio resources are allocated without considering latency prediction, then the scheduling process is simple, but packet transfer efficiency between terminal and server deteriorates
Solution Approach 1:
Latency prediction and radio resource selection are performed in advance by the terminal before packet transfer begins. This preliminary scheduling action ensures that resource allocation is optimized for the actual transmission conditions, improving packet transfer efficiency without adding complexity during the active transmission phase.
Data Source
AI summary
A method and an apparatus for scheduling radio resources for a terminal are disclosed. The present disclosure in some embodiments provides a method and apparatus which predict fluctuations in the latency that may occur at the time of packet transfer between the terminal and a server in the mobile communication network, select the radio resource to be allocated for the terminal, and transmit information thereon to the server and the terminal, whereby maximizing the efficiency of packet transfer between the terminal and the server.