Dynamic Scheduling for Mobile Network Bandwidth Reduction
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Solution Overview
Problem
In LTE systems, the bandwidth requirement of the transmission network is high due to the need for centralized scheduling, which leads to increased pressure on the network, especially at cell edges where inter-cell interference is severe, and distributed scheduling lacks inter-cell coordination, reducing throughput.
Innovation Solution
A method where the scheduling node for each terminal device is dynamically determined based on basic information and network conditions, allowing for a mix of centralized and distributed scheduling, reducing bandwidth requirements while maintaining system performance by adjusting scheduling as needed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If centralized scheduling is used to improve system performance and reduce inter-cell interference, then the throughput of cell edge users is improved, but the bandwidth requirement of the transmission network increases significantly
Solution Approach 1:
The invention segments the scheduling function by introducing a scheduling indication parameter that dynamically determines whether centralized or distributed scheduling is used for each terminal device. This segmentation allows the system to apply centralized scheduling only when necessary (for cell edge users) while using distributed scheduling for others, thereby reducing overall transmission network bandwidth requirements while maintaining system performance
Solution Approach 2:
The invention implements dynamic scheduling by using a scheduling indication parameter that can change based on terminal device conditions and network state. The scheduling mode is not fixed but adapts dynamically, allowing the system to switch between centralized and distributed scheduling to optimize the balance between throughput and bandwidth consumption
2Quantity of substance
If distributed scheduling is used to reduce transmission network bandwidth requirements, then the bandwidth pressure is reduced, but the inter-cell coordination effect is poor and throughput of cell edge users decreases
Solution Approach 1:
The invention segments the terminal device population into different scheduling groups based on the scheduling indication parameter. Terminal devices are not uniformly scheduled but are divided into those that benefit from centralized scheduling (typically cell edge users) and those that can use distributed scheduling, thereby maintaining throughput while reducing bandwidth requirements
Solution Approach 2:
The invention applies different scheduling qualities to different terminal devices based on their local conditions. The scheduling indication parameter enables the system to provide centralized scheduling with strong inter-cell coordination for specific terminal devices (those needing it) while using simpler distributed scheduling for others, optimizing resource allocation
3Adaptability or versatility
If the frequency bandwidth supported by a cell is increased to provide more services, then the service capacity is improved, but the bandwidth requirement of the transmission network increases due to more air interface data
Solution Approach 1:
The invention implements dynamic scheduling adaptation that responds to changing network conditions and service requirements. As frequency bandwidth and service capacity increase, the system dynamically adjusts the scheduling indication parameter to optimize the mix of centralized and distributed scheduling, preventing linear growth in transmission network bandwidth requirements
Data Source
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AI summary
This application relates to the field of mobile communications, and in particular, to a data transmission method. The method includes: determining, by a second node, first indication information based on basic information of a terminal device and/or network information, and sending the first indication information to a first node, where the first indication information is used for indicating that the terminal device is scheduled by the first node or is scheduled by the second node; if the first indication information indicates that the terminal device is scheduled by the first node, sending, by the second node to the first node, a data packet that has not been processed by using a scheduling function of the second node; or if the first indication information indicates that the terminal device is scheduled by the second node, sending, by the second node to the first node, a data packet that has been processed by using a scheduling function of the second node. While gains of centralized scheduling are obtained, a bandwidth requirement of a transmission network for a fixed scheduling node of each terminal device is reduced.