Dynamic Scheduling Rule Selection for LTE Transport Block Mapping
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Solution Overview
Problem
The existing LTE protocol's fixed mapping relationship between transport blocks and minimum scheduling units is not adaptable to various scenarios, leading to inefficiencies in resource usage and spectral efficiency, particularly in retransmissions.
Innovation Solution
A communication method that allows a network side device to select a target scheduling rule from a set of rules based on parameters like subcarrier spacing, symbol quantity, and radio resource information to dynamically map transport blocks to minimum scheduling units, enabling flexible resource reuse and adaptation to different environments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed mapping relationship between transport blocks and minimum scheduling units is used, then the system is simple to implement, but it cannot adapt to various scenarios leading to resource waste and reduced spectral efficiency
Solution Approach 1:
The patent implements dynamic scheduling by allowing the network side device to select from multiple scheduling rules based on current channel conditions, traffic patterns, and quality of service requirements. The mapping relationship between transport blocks and minimum scheduling units is no longer fixed but dynamically adjustable, enabling adaptation to varying scenarios while maintaining manageable complexity through predefined rule sets
Solution Approach 2:
The patent changes the parameter of mapping relationship by introducing multiple scheduling rules with different mapping configurations. The network side device can select appropriate scheduling rules by changing parameters such as the number of transport blocks per scheduling unit, the time domain allocation, and frequency domain allocation, thereby adapting to different scenarios without increasing fundamental system complexity
2Productivity
If multiple scheduling rules are introduced to improve adaptability, then resource allocation efficiency improves, but the complexity of determining the target scheduling rule increases
Solution Approach 1:
The patent incorporates feedback mechanisms where the network side device monitors channel conditions, transmission success rates, and resource utilization metrics. Based on this feedback, the device selects the most appropriate scheduling rule from multiple available rules, optimizing resource allocation efficiency while managing complexity through condition-based decision making
Solution Approach 2:
The patent segments the scheduling rule selection process into distinct scenarios or conditions, each with predefined optimal scheduling rules. This segmentation allows the system to efficiently determine the target scheduling rule by matching current conditions to predefined scenarios, improving resource allocation efficiency while keeping the determination process manageable through structured classification
3Loss of energy
If flexible resource allocation is implemented, then spectral efficiency improves, but the complexity of managing multiple transport blocks and scheduling units increases
Solution Approach 1:
The patent creates universal scheduling rules that can handle multiple transport blocks and scheduling unit configurations through a unified framework. The selected scheduling rule provides multi-functionality by accommodating different numbers of transport blocks, various time domain allocations, and frequency domain allocations, thereby improving spectral efficiency while managing complexity through a universal approach rather than separate mechanisms for each scenario
Data Source
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AI summary
Embodiments of this application provide a communication method, a network side device, and a terminal device, and the method includes: when a quantity of minimum scheduling time units in one time of scheduling performed by a network side device is S, and the network side device and a terminal device transmit data in a first transmission mode, determining, by the network side device, a target scheduling rule from N scheduling rules, where the scheduling rule includes at least one of a quantity T of transport blocks in one time of scheduling and a mapping relationship between T transport blocks and S minimum scheduling time units in one time of scheduling, and the first transmission mode is a single-antenna transmission scheme or a multi-antenna transmission scheme; and communicating, by the network side device, with the terminal device according to the target scheduling rule. In the foregoing technical solutions, proper scheduling rules can be selected to adapt to different scenarios.