Latency-Insensitive RAN Memory Segmentation for Network Capacity
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Solution Overview
Problem
Cellular networks face limitations in capacity due to the constraints of RAM capacity, which restricts the number of user devices that can be accommodated while maintaining low latency connections.
Innovation Solution
Implementing a system that stores connection information for latency-insensitive user devices in virtual memory, such as HDD or SSD, while maintaining latency-sensitive devices' information in physical memory, allowing for a higher capacity by swapping idle connection information into virtual memory when active.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If connection information is stored in RAM to provide minimal latency, then network latency is reduced, but network capacity is limited by RAM capacity
Solution Approach 1:
The patent segments network connections into two categories: latency-sensitive connections stored in RAM and latency-insensitive connections stored in virtual memory. This segmentation allows the system to optimize for both low latency (for active connections) and high capacity (for idle connections) simultaneously, resolving the contradiction between speed and quantity.
Solution Approach 2:
The patent introduces a memory management entity that acts as an intermediary between RAM and virtual memory. This entity dynamically manages connection information storage, determining which connections should be in RAM and which can be in virtual memory, thereby mediating between the conflicting requirements of low latency and high capacity.
2Quantity of substance
If more user devices are accommodated in the network, then network capacity increases, but RAM capacity constraints prevent maintaining low latency for all connections
Solution Approach 1:
The patent applies local quality by providing different storage locations for different types of connections. Latency-sensitive connections receive the high-speed RAM storage, while latency-insensitive connections use virtual memory storage. This localized optimization allows the network to accommodate more devices while maintaining low latency where it matters most.
Solution Approach 2:
The patent changes the storage parameter (from always-RAM to conditional storage) based on connection characteristics. By dynamically adjusting where connection information is stored based on latency sensitivity, the system can scale capacity while preserving performance for time-critical operations.
Data Source
AI summary
A telecommunications network receives an indication that a user device, communicatively coupled to the telecommunications network, is a latency-insensitive device; receives connection information associated with a connection between the user device and the telecommunications network; stores, based on the indication that the user device is a latency-insensitive device, at least a portion of the connection information, associated with the connection between the user device and the telecommunications network, in a virtual memory of the server device; receives an indication that the connection is to become active; and places, based on receiving the indication that the connection is to become active, at least the portion of the connection information, associated with the connection between the user device and the telecommunications network, in a physical memory of the server device.