Access Information Table for Wireless Network Signaling

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Solution Overview

Problem

Current wireless communication networks face challenges in reducing signaling complexity and overhead, particularly during hand-offs and when access information changes, leading to increased power consumption and battery drain in battery-powered devices, especially in machine-type communication scenarios where fast and reliable connectivity is crucial.

Innovation Solution

The method involves aggregating and transmitting only essential access information configurations and identifiers from network nodes, using an Access Information Table (AIT) with system signature indices, allowing devices to access the network efficiently while minimizing energy consumption by reducing unnecessary broadcasts.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the network transmits complete access information (MIB, SIB1, SIB2, etc.) to wireless communication devices, then the devices can reliably access the network, but the signaling overhead and power consumption increase

Engineering Contradiction:

Improvenetwork access reliabilityVSAvoidpower consumption

Core Design Contradiction:

ReliabilityVSLoss of energy

Solution Approach 1:

The patent extracts only the essential access information configurations and identifiers from the complete system information blocks, creating a condensed Access Information Table (AIT) that contains only the minimum necessary data for network access, thereby reducing signaling overhead while maintaining access reliability

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent segments the complete system information (MIB, SIB1, SIB2, etc.) into separate components, transmitting only the critical access-related portions through the AIT, while other information can be obtained on-demand or previously cached, thus reducing immediate power consumption

Inventive Principle:

Principle #1Segmentation

2Ease of operation

If the network broadcasts all system information blocks (MIB, SIB1, SIB2, etc.) at fixed cycles, then devices can synchronize and access the network, but the signaling complexity and overhead increase

Engineering Contradiction:

Improvenetwork access easeVSAvoidsignaling complexity

Core Design Contradiction:

Ease of operationVSDevice complexity

Solution Approach 1:

The patent merges multiple system information blocks (MIB, SIB1, SIB2, etc.) into a single consolidated Access Information Table (AIT) structure that contains all essential access configurations and identifiers in one place, simplifying the broadcasting mechanism and reducing signaling complexity

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The patent performs preliminary aggregation of access information into the AIT structure before transmission, pre-organizing all necessary access configurations and identifiers so that devices can quickly access the network without processing multiple separate information blocks

Inventive Principle:

Principle #10Preliminary action

3Reliability

If wireless communication devices perform full synchronization and read all system information blocks, then they can access the network reliably, but the time required for network access increases

Engineering Contradiction:

Improvenetwork access reliabilityVSAvoidnetwork access time

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

Inventive Principle:

Principle #2Taking out (Extraction)

Data Source

PatentEP3345433B1Controlling access to a wireless communication network

Publication Date: 2020.01.29 TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

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AI summary

A method for controlling access to a wireless communication network (102), the method comprising: - a wireless communication device (101) receiving a parameter of a system configuration (MIB, SIB1, AIT-1,AIT-2) for accessing to the wireless communication network, - the wireless communication device (101) receiving (S2) an indication (102) from the wireless communication network (102), the indication indicating whether an access attempt to the wireless communication network (102) is allowed using the parameter of the system configuration with a validity of the system configuration being undetermined, - the wireless communication device (102) performing (S4) an access attempt to the wireless communication network (102), if the indication indicates whether an access attempt to the wireless communication network (102) is allowed using the parameter of the system configuration (MIB, SIB1, AIT-1,AIT-2) with a validity of the system configuration being undetermined.