Base Station Task Processing Units for 5G Coordination
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Solution Overview
Problem
The existing embedded architecture of eNB protocol stacks in LTE networks is limited in supporting high real-time inter-carrier coordination and multi-cell coordination due to cost constraints, making it difficult to meet the requirements of 5G networks which demand synchronized intra-cell and inter-cell coordination with advanced technologies like interference suppression and multi-format physical technology coordination.
Innovation Solution
A base station architecture with multiple task processing units, including RRM, slow MAC, and fast MAC units, is introduced, where tasks are distributed based on pre-set task cycle gradients to process tasks within different cycle ranges, enabling efficient coordination and real-time processing across various platforms, thereby supporting the coordination requirements of 5G networks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the conventional embedded architecture with independent carrier-based eNB protocol stacks is used, then the system structure is simple and cost is controlled, but the real-time capability for inter-carrier coordination and multi-cell coordination is insufficient and cannot meet 5G network requirements
Solution Approach 1:
The patent segments the base station into multiple independent BBU boards, where each board can process multiple cells with real-time capability. This segmentation allows the system to achieve high real-time coordination for multiple cells without requiring a complete architectural overhaul, as each board operates semi-independently while contributing to the overall coordination capability.
Solution Approach 2:
The patent implements a universal BBU board design that can handle multiple cells and support various coordination functions (inter-carrier coordination, multi-cell coordination, interference suppression) through a common real-time processing platform. This multi-functionality allows a single board architecture to replace multiple specialized boards, achieving 5G requirements without proportionally increasing system complexity.
2Adaptability or versatility
If more cells are supported on a single BBU board to enable multi-cell coordination, then the coordination capability improves, but the processing cycle increases and real-time capability deteriorates
Solution Approach 1:
The patent divides the processing of multiple cells into parallel tasks distributed across multiple BBU boards. Each board processes a subset of cells independently in real-time, avoiding the sequential processing bottleneck that would occur if all cells were handled by a single board. This segmentation maintains real-time capability while supporting multi-cell coordination.
Solution Approach 2:
The patent implements preliminary synchronization mechanisms where BBU boards pre-coordinate their processing cycles and data exchange timing. By establishing predetermined synchronization patterns and time slots for inter-board communication, the system minimizes actual processing delays while maintaining the appearance of unified multi-cell processing.
3Productivity
If BBU boards are coordinated to achieve high real-time multi-cell processing, then the real-time capability improves, but the system complexity and coordination overhead increase
Solution Approach 1:
The patent introduces a master BBU board that acts as an intermediary or mediator between slave BBU boards. The master board handles high-level coordination and scheduling, while slave boards execute specific cell processing tasks. This intermediary structure simplifies inter-board coordination by centralizing control logic, reducing the complexity that would arise from fully distributed peer-to-peer coordination.
Solution Approach 2:
The patent implements periodic synchronization cycles where BBU boards exchange status information and coordinate tasks at regular intervals. This periodic action creates predictable coordination patterns, allowing the system to manage inter-board complexity through rhythmic, structured communication rather than continuous complex negotiation, thereby maintaining high real-time throughput.
Data Source
AI summary
A base station includes: a processor; and one or more units stored on a memory and executable by the processor, the one or more units including an identification unit and more than two task processing units, tasks which can be processed by the more than two task processing units being divided according to a pre-set task cycle gradient so that the more than two task processing units can process tasks having cycles within different task cycle ranges, wherein the identification unit is arranged to obtain a task, identify the cycle of the task, and send the task to a task processing unit corresponding to the cycle of the task for processing; and the task processing unit is arranged to obtain and process the task sent by the identification unit. A corresponding data processing method is also provided.