Memory Controller Interleaving for Data Processing Efficiency
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Solution Overview
Problem
The complexity and performance deterioration of memory systems in portable electronic devices lead to inefficiencies in data processing, particularly in handling sequential data patterns, where existing systems struggle to optimize storage and retrieval operations across multiple memory dies and host memories.
Innovation Solution
A memory system with a controller that employs interleaving techniques, such as channel interleaving, way interleaving, and memory die interleaving, to manage data segments and map segments across multiple memory dies and host memories, optimizing storage and retrieval operations by updating and referencing map segments strategically.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the controller stores and manages data segments and map segments across multiple memory dies and host memories, then data processing efficiency is improved, but device complexity increases
Solution Approach 1:
The patent segments data into data segments and map segments, and further divides them into multiple groups that can be distributed across different memory dies and host memories. The controller manages these segmented data units independently, which simplifies the overall complexity while improving processing efficiency through parallel operations.
Solution Approach 2:
The patent implements a nested structure where map segments are stored within host memories, which in turn contain multiple memory dies. The controller manages segments at multiple levels of this hierarchy, allowing efficient data retrieval and processing while organizing complexity in a structured manner.
2Measurement precision
If the controller updates map segments frequently to track data storage locations, then data retrieval accuracy is improved, but time consumption increases
Solution Approach 1:
The patent performs preliminary actions by pre-establishing map segments that record the locations of data segments before actual data retrieval operations. These pre-updated map segments allow the controller to quickly locate and retrieve data without performing complex search operations during data access.
Solution Approach 2:
The patent creates copies of map segments in multiple locations (host memories and memory dies) to distribute the update burden and improve accessibility. When data is stored or relocated, only the relevant map segment copies need to be updated, reducing the overall time consumption compared to updating a single centralized map.
3Speed
If the system uses interleaving techniques to distribute data across multiple memory dies, then data processing speed is improved, but control complexity increases
Solution Approach 1:
The patent applies segmentation to data distribution by dividing data into multiple segments that are interleaved across different memory dies. The controller manages these segmented data units through standardized operations, which simplifies the control complexity while achieving high processing speeds through parallel access to multiple memory dies.
Solution Approach 2:
The patent introduces a new dimension to data organization by mapping data segments to specific memory dies through interleaving patterns. This dimensional approach allows the controller to efficiently distribute and retrieve data across multiple memory dies using systematic addressing, reducing control complexity compared to arbitrary data distribution methods.
Data Source
AI summary
A memory system may comprise: a memory device including a plurality of memory dies; and a controller including a first memory, Wherein the controller may store data segments of user data, corresponding to a plurality of commands received from a host, in the first memory, controls the memory device to sequentially store the data segments in the memory dies through interleaving, may update map segments of map data corresponding to storage of the data segments in the memory dies, may store the map segments in the first memory, controls the memory device to store the map segments stored in the first memory in the memory dies, and may assist the host in storing the map segments, stored in the first memory, in a second memory in the host.