Radio Frame Control Device Dynamic Resource Block Conversion
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Solution Overview
Problem
Current LTE systems face inefficiencies in resource block allocation for terminal stations, as they are restricted by different allocation types, leading to suboptimal use of frequency resources and potential waste due to rigid allocation methods.
Innovation Solution
A radio frame control device and method that includes a controlling unit for orthogonal frequency division multiple access (OFDMA) schemes, which allocates resource blocks using various allocation methods and determines the possibility of converting allocation information between these methods to optimize resource usage, thereby allowing for dynamic adjustment of resource block allocations based on transmission needs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If resource blocks are allocated using fixed allocation types (0, 1, 2 localized, 2 distributed), then allocation restrictions are enforced, but frequency resource efficiency deteriorates due to rigid allocation methods
Solution Approach 1:
The patent applies dynamics by enabling dynamic conversion between different resource block allocation types based on channel conditions. The base station can switch from fixed allocation types to variable allocation types depending on terminal station requirements and wireless environment, making the allocation system adaptive rather than rigid. This resolves the contradiction by allowing the system to maintain restriction compliance while improving resource efficiency through flexible adjustment.
Solution Approach 2:
The patent changes the parameter of allocation type from fixed to variable. By introducing conversion capability between allocation types (0, 1, 2 localized, 2 distributed) based on channel quality indicators and terminal requirements, the system can optimize resource block allocation dynamically. This parameter change enables the system to transition between different allocation strategies to maximize frequency resource efficiency while maintaining necessary allocation restrictions.
2Adaptability or versatility
If multiple resource block allocation methods are used, then allocation flexibility improves, but system complexity increases due to conversion requirements between methods
Solution Approach 1:
The patent applies universality by creating a unified resource block allocation mechanism that can handle multiple allocation types through a single conversion framework. The base station uses a universal conversion control mechanism that can transform between allocation types (0, 1, 2 localized, 2 distributed) based on channel conditions, rather than requiring separate independent control systems for each allocation type. This multi-functional approach improves flexibility while managing complexity through a single coherent control structure.
Solution Approach 2:
The patent implements feedback mechanisms where the base station monitors channel quality indicators and terminal station requirements to dynamically select and convert between allocation types. The conversion control is guided by feedback information about wireless channel conditions and terminal needs, enabling automated optimization. This feedback-driven approach manages system complexity by using intelligent decision-making based on real-time conditions rather than complex manual control for each allocation scenario.
3Productivity
If resource blocks are allocated continuously, then frequency band utilization improves, but waste occurs when allocation does not match actual transmission needs
Solution Approach 1:
The patent applies preliminary action by having the base station determine appropriate resource block allocation types in advance based on predicted channel conditions and terminal requirements. The conversion control mechanism proactively selects the most suitable allocation type before actual transmission occurs, optimizing frequency band utilization while preventing resource waste. This preliminary planning approach ensures that allocated resources match actual needs by considering future transmission requirements rather than making reactive allocations.
Data Source
AI summary
A radio frame control device comprises a controlling unit, a resource block allocation unit, and a resource block conversion unit. The controlling unit controls a downlink radio frame of an orthogonal frequency division multiple access scheme. The resource block allocation unit allocates resource blocks to a terminal station using any one of a plurality of resource block allocation methods respectively having different restrictions. The resource block conversion unit determines whether or not conversion is possible from allocation information of resource blocks allocated according to a first resource block allocation method into resource block allocation information by a second resource block allocation method. The resource block conversion unit converts the resource block allocation method for the resource block allocation information when the conversion is possible.