Stable Virtual Access Point Logical Endpoint for mmWave Mobility

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Solution Overview

Problem

In mmWave radio communication, managing dynamic cloud cells with multiple coordinated transmission points poses challenges in coordinating communication between the cloud cell and network nodes, particularly in maintaining stable connections and handling mobility and radio link failures effectively.

Innovation Solution

A stable virtual access point with a logical endpoint provides a consistent interface to network nodes, insulating the existing network from complexities by defining a virtual access point as a secondary access point, enabling coordinated data transmission and managing changes in transmission points without constant reconfiguration of connections.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If multiple coordinated transmission points are used to form a virtual access point, then data transmission coordination and network efficiency are improved, but connection stability and mobility management become more complex

Engineering Contradiction:

Improvedata transmission coordinationVSAvoidconnection stability management

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The patent introduces a logical endpoint as an intermediary component that manages connections between the virtual access point and the network. This logical endpoint abstracts the complexity of multiple transmission points, providing a stable interface for mobility management and connection handling while enabling coordinated data transmission across multiple TPs.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent segments the virtual access point functionality into distinct components: multiple transmission points (TPs) for data transmission and a separate logical endpoint for connection management. This segmentation allows the system to maintain connection stability independently from the dynamic coordination of multiple TPs, resolving the complexity issue.

Inventive Principle:

Principle #1Segmentation

2Adaptability or versatility

If transmission points are dynamically changed in the cloud cell, then network flexibility and adaptability are improved, but connection stability deteriorates

Engineering Contradiction:

Improvetransmission point flexibilityVSAvoidconnection stability

Core Design Contradiction:

Adaptability or versatilityVSStability of the object's composition

Solution Approach 1:

The patent establishes a logical endpoint in advance that serves as a stable anchor for connections. When transmission points need to be dynamically changed, the logical endpoint is already in place to maintain connection stability, allowing TP changes without disrupting the connection between the UE and the network.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The logical endpoint acts as a mediator between the dynamic transmission points and the stable network connection. It absorbs the changes in transmission points while maintaining a consistent interface for mobility management, thereby decoupling connection stability from transmission point dynamics.

Inventive Principle:

Principle #24Intermediary (Mediator)

3Ease of operation

If mmWave layer mobility is coupled with macro layer, then network coordination is simplified, but mobility management efficiency decreases

Engineering Contradiction:

Improvenetwork coordinationVSAvoidmobility management efficiency

Core Design Contradiction:

Ease of operationVSProductivity

Solution Approach 1:

The patent segments mobility management into two independent layers: macro layer for broad coverage and mmWave layer for high-speed data transmission. The logical endpoint enables the mmWave layer to manage its own mobility independently, improving efficiency by allowing simultaneous operation of both layers without mutual interference.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent introduces a new dimension of operation by adding the logical endpoint as a separate functional layer. This allows mmWave mobility to operate in an independent dimension from macro layer coordination, enabling parallel processing and improving overall mobility management efficiency while maintaining network coordination.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

Data Source

PatentEP3420781B1Method and system for managing radio connections with a virtual access point

Publication Date: 2020.07.29 HUAWEI TECH CO LTD

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AI summary

A stable virtual access point and a method for operating a stable virtual access point are disclosed. In embodiments a method for operating a logical endpoint of a stable virtual access point, wherein the logical endpoint includes an interface with a macro access point, wherein the stable virtual access point comprises a plurality of transmission points (TPs), and wherein the TPs provide a coordinated data transmission to a UE comprises storing, at the logical endpoint, a connection status of the UE, receiving, at the logical endpoint, information regarding the connection status of the UE from the macro access point, determining, at the logical endpoint, a change in the connection status of the UE and updating, at the logical endpoint, the connection status of the UE with respect to the change.