DPU Virtualization for Multi-Operator Resource Isolation

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Solution Overview

Problem

In copper cable access systems, ensuring resource isolation among multiple operators when a Distribution Point Unit (DPU) provides access services to multiple operators is challenging due to the lack of effective management methods.

Innovation Solution

The DPU is divided into virtual distribution point units (vDPUs), each with isolated data and management channels, allowing for independent data transmission and management configuration, ensuring resource isolation among operators.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a DPU provides access services to multiple operators simultaneously with uniform management, then the device can serve multiple operators, but resource isolation among operators cannot be ensured

Engineering Contradiction:

Improveability to serve multiple operatorsVSAvoidresource isolation

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The patent applies segmentation by dividing the DPU into multiple virtual DPUs (vDPUs), where each vDPU is assigned to a specific operator. This virtualization creates isolated management instances that can independently manage resources for different operators while sharing the same physical hardware, thus achieving both multi-operator service capability and resource isolation.

Inventive Principle:

Principle #1Segmentation

2Ease of operation

If different ports are managed by different operators, then operator-specific management is achieved, but isolation among resources is difficult to ensure through related art management methods

Engineering Contradiction:

Improveoperator-specific managementVSAvoidresource isolation

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The patent introduces virtual DPUs as intermediary management entities between the physical DPU and multiple operators. Each vDPU acts as a isolated management instance that mediates between the physical resources and the specific operator, enabling operator-specific management while ensuring resource isolation through the virtualization layer.

Inventive Principle:

Principle #24Intermediary (Mediator)

3Device complexity

If uniform management is used for uplink and downlink ports, then management is simplified, but independent data transmission and management on different ports cannot be achieved

Engineering Contradiction:

Improvemanagement complexityVSAvoidindependent port management

Core Design Contradiction:

Device complexityVSAdaptability or versatility

Solution Approach 1:

The patent segments the unified DPU management into multiple virtual DPUs, where each vDPU can independently manage specific ports. This segmentation allows different ports to have independent data transmission and management capabilities while the overall system complexity is abstracted away through the virtualization layer.

Inventive Principle:

Principle #1Segmentation

Data Source

PatentEP3883257B1Data communication and communication management method based on distributed processing unit (DPU) and dpu

Publication Date: 2023.09.06 ZTE CORP

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AI summary

Provided are a data communication method and a communication management method based on a distribution processing unit, DPU, and a DPU. The method includes: the DPU is divided into a plurality of virtual DPUs, vDPUs, of an optical line terminal, OLT, where a data transmission channel of a vDPU is mutually isolated from a data transmission channel of another vDPU; the data transmission channels of the plurality of vDPUs of the DPU receive a respective data transmission configuration parameter from the OLT; and the data transmission channels of the plurality of vDPUs transmit data according to the respective data transmission configuration parameter.