Memory Controller Interleaving and Buffering for Data Processing Speed
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Solution Overview
Problem
Memory systems face complexity and performance deterioration due to sequential data processing, leading to inefficiencies in data storage and retrieval, particularly in portable electronic devices where stability and speed are crucial.
Innovation Solution
A memory system with a controller that employs interleaving techniques for storing and updating data segments and map data across multiple memory dies, using buffer regions to optimize data storage and retrieval operations, including channel, way, and memory die interleaving.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If sequential data processing is used in memory systems, then data storage and retrieval operations can be performed in a straightforward manner, but complexity increases and performance deteriorates
Solution Approach 1:
The patent divides sequential user data into multiple data segments and distributes them across multiple memory dies through interleaving. This segmentation allows parallel processing of data segments in different memory dies, improving data processing speed while managing complexity through structured distribution.
Solution Approach 2:
The patent introduces a multi-dimensional buffer structure with first and second buffer regions for storing different types of map data. This dimensional organization separates lower level map data from upper level map data, enabling efficient management and reducing operational barriers between different data types.
2Productivity
If data segments are stored sequentially in memory dies, then the storage process is simple, but use efficiency of memory devices decreases
Solution Approach 1:
The patent segments user data into multiple data segments and interleaves them across multiple memory dies. This segmentation strategy maximizes the utilization of available memory capacity and enables parallel access patterns, thereby improving memory device use efficiency.
Solution Approach 2:
The patent performs preliminary actions by storing lower level map data in a first buffer region and upper level map data in a second buffer region before actual data retrieval operations. This preliminary organization reduces operational barriers and enables faster data access, improving overall efficiency.
3Productivity
If map data is updated continuously during data storage, then data management is comprehensive, but performance deteriorates due to operational barriers
Solution Approach 1:
The patent creates a two-level buffer structure with first and second buffer regions for different types of map data. This dimensional separation allows the system to maintain comprehensive data management while reducing operational barriers, as each buffer region can be managed independently with appropriate update strategies.
Solution Approach 2:
The buffer regions act as intermediaries between the memory dies and the controller. The first buffer region stores lower level map data and the second buffer region stores upper level map data, mediating the update operations and reducing direct operational barriers between data storage and management functions.
Data Source
AI summary
A memory system may include: a memory device including a plurality of memory dies; and a controller including a memory, and configured to: sequentially store, after storing data segments of sequential user data in the memory, the data segments of the sequential user data in the memory dies through interleaving; store in a first buffer region of the memory, after updating map segments of lower level map data corresponding to the storage of the data segments in the memory dies, the map segments of the lower level map data; and store in a second buffer region of the memory map segments of upper level map data corresponding to storage of the map segments of the lower level map data.