Mobile Relay Access Control via Migration Range Support Broadcasting

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Solution Overview

Problem

Existing cellular communication systems face challenges in enabling mobile relay nodes to appropriately access parent nodes due to insufficient information about the migration range support, leading to inefficient utilization of network coverage.

Innovation Solution

Broadcasting migration range support information by parent nodes, allowing mobile relay nodes to determine whether access is available based on this information, and configuring the migration range through operations, administration, and management servers or access mobility management entities.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If mobile relay nodes attempt to access parent nodes without migration range support information, then access attempts can be made, but access efficiency and network utilization deteriorate due to inappropriate access decisions

Engineering Contradiction:

Improveaccess efficiencyVSAvoidmigration range support information

Core Design Contradiction:

ProductivityVSLoss of information

Solution Approach 1:

The parent node performs preliminary action by broadcasting migration range support information before the mobile relay node attempts access. This allows the mobile relay node to make informed access decisions in advance, avoiding futile access attempts and improving overall access efficiency.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

Migration range support information acts as an intermediary that mediates between the parent node and mobile relay node. This information enables the mobile relay node to determine whether access is available without direct complex negotiations, simplifying the access process.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Ease of operation

If migration range support information is broadcast to all mobile relay nodes, then access availability determination is improved, but network information overhead increases

Engineering Contradiction:

Improveaccess availability determinationVSAvoidnetwork information overhead

Core Design Contradiction:

Ease of operationVSQuantity of substance

Solution Approach 1:

The migration range support information is tailored to specific parent nodes and their coverage characteristics. Each parent node broadcasts information relevant to its local migration range, providing locally optimized guidance to mobile relay nodes without requiring universal information from the entire network.

Inventive Principle:

Principle #3Local quality

3Reliability

If mobile relay nodes check serving cell and neighboring cells for support information before access, then access appropriateness is improved, but access time increases

Engineering Contradiction:

Improveaccess appropriatenessVSAvoidaccess time

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

Mobile relay nodes perform preliminary checking of migration range support information during idle periods or when not急于 accessing. The broadcast information allows nodes to pre-determine access suitability, so when access is needed, the decision can be made quickly without extensive real-time checking.

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUS20250267555A1Communication control method

Publication Date: 2025.08.21 KYOCERA CORP

AI summary

In an aspect, a communication control method is used in a cellular communication system. The communication control method includes broadcasting, by a parent node, migration range support information supporting a migration range of a mobile relay node. The communication control method includes receiving, by the mobile relay node, the migration range support information. The communication control method includes determining, by the mobile relay node, whether access to the parent node is available based on the migration range support information.