Remote Accelerator Offloading for Stable vRAN Signal Aggregation

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Solution Overview

Problem

Existing signal processing aggregation systems in mobile communication face issues with temporary disconnection of user terminals due to time resynchronization during fronthaul switching, require new functions for high-speed wireless state transitions, and involve complex fronthaul NW assignment/switching, leading to communication interruptions and resynchronization processing.

Innovation Solution

A signal processing aggregation device that dynamically aggregates calculation resources by offloading specific processing to remote accelerators, using an accelerator offload part and a remote offload part to serialize and packetize data, without changing user terminals or antenna devices.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If fronthaul switching is performed to aggregate signal processing resources, then resource utilization efficiency is improved, but temporary disconnection of user terminals occurs due to time resynchronization

Engineering Contradiction:

Improveresource utilization efficiencyVSAvoidconnection stability

Core Design Contradiction:

ProductivityVSReliability

Solution Approach 1:

The system performs time resynchronization processing before fronthaul switching occurs. The base station receives synchronization signals from the antenna device, performs time resynchronization, and completes this preparation before the actual switching to a different signal processing device takes place, thereby preventing connection interruptions

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent introduces a specific control mechanism that acts as an intermediary between the antenna device and signal processing devices. This control system manages the switching process by coordinating time resynchronization with fronthaul switching, ensuring that the transition between signal processing devices does not cause user terminal disconnections

Inventive Principle:

Principle #24Intermediary (Mediator)

2Speed

If dedicated hardware is used for base stations to meet high delay requirements, then processing performance is improved, but hardware cost and flexibility are worsened

Engineering Contradiction:

Improveprocessing speedVSAvoidhardware complexity

Core Design Contradiction:

SpeedVSDevice complexity

Solution Approach 1:

The patent enables general-purpose servers to perform base station signal processing functions that were traditionally reserved for dedicated hardware. By virtualizing the base station functions and allowing general-purpose servers to execute signal processing tasks, the system achieves both cost reduction and operational flexibility while maintaining the required processing performance

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The invention replaces physical dedicated hardware with virtualized software-based signal processing on general-purpose servers. This substitution allows the system to maintain high processing speeds through efficient software implementation while eliminating the need for expensive, inflexible dedicated hardware infrastructure

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

3Ease of manufacture

If general-purpose servers are used for vRAN to reduce cost, then hardware cost is improved, but processing performance may be insufficient

Engineering Contradiction:

Improvehardware costVSAvoidprocessing performance

Core Design Contradiction:

Ease of manufactureVSProductivity

Solution Approach 1:

The patent combines multiple general-purpose servers into a pooled infrastructure that shares computational resources. By merging the processing capabilities of multiple servers and dynamically allocating resources based on demand, the system achieves processing performance comparable to dedicated hardware while maintaining the cost advantages of general-purpose servers

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The system implements dynamic resource allocation where the computational resources of general-purpose servers are flexibly adjusted based on real-time processing demands. This dynamic scaling allows the system to optimize performance for varying traffic loads while maintaining cost efficiency, eliminating the need for over-provisioning static hardware capacity

Inventive Principle:

Principle #15Dynamics

Data Source

PatentUS20250392547A1Signal processing aggregation device, signal processing aggregation system, signal processing aggregation method and program

Publication Date: 2025.12.25 NT T INC

AI summary

A signal processing aggregation device which switches an offload destination accelerator when offloading specific processing of an application to an accelerator for calculation processing includes: an accelerator offload part which performs offloading on the installed accelerator or the accelerator on a remote server side on the basis of a set offload destination; and an accelerator remote offload part which serializes offload data to the accelerator on the remote server side, packetizes it in a predetermined format, and transmits it as packetized data.