Dynamic IAB Link Partitioning for Emergency Traffic

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Solution Overview

Problem

Current wireless communication systems face challenges in managing integrated access and backhaul (IAB) links, particularly during emergency communications, where dynamic adjustment and optimization of these links are necessary to ensure reliable and efficient data transmission.

Innovation Solution

A power control system and process are implemented, where a relay distributed unit adjusts power levels based on received access uplink and backhaul downlink measurements, and a network controller analyzes network conditions to facilitate dynamic partitioning and routing of IAB links, prioritizing emergency communication traffic according to operator policies.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If dynamic adjustment of IAB link partition is implemented for emergency communications, then reliability of emergency communication is improved, but device complexity increases

Engineering Contradiction:

Improvereliability of emergency communicationVSAvoidcomplexity of power control system

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent implements dynamic adjustment of the IAB link partition by allowing the network controller to modify the partition configuration in real-time based on network conditions and emergency communication requirements. The partition can be adjusted between different states (e.g., first partition for normal operation, second partition for emergency operation) to optimize performance under varying conditions.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The power control system employs feedback mechanisms where the network controller continuously monitors network conditions, emergency communication status, and link quality metrics. Based on this feedback, the controller dynamically adjusts power levels and partition configurations to maintain reliable emergency communication while managing system complexity through automated closed-loop control.

Inventive Principle:

Principle #23Feedback

2Productivity

If power control adjustment is implemented based on network conditions, then efficiency of data transmission is improved, but use of energy increases

Engineering Contradiction:

Improveefficiency of data transmissionVSAvoidenergy consumption of relay distributed unit

Core Design Contradiction:

ProductivityVSUse of energy by moving object

Solution Approach 1:

The system dynamically changes power control parameters based on network conditions and communication priorities. During emergency communications, the network controller adjusts power levels to prioritize emergency traffic, while during normal operation, power levels are optimized for overall network efficiency. This parameter adaptation allows the system to balance transmission efficiency with energy consumption.

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The power control system applies partial power adjustment rather than maximum power continuously. Power control adjustments are applied selectively based on the specific needs of emergency communications versus normal traffic, avoiding excessive energy consumption while maintaining sufficient transmission efficiency for prioritized emergency data.

Inventive Principle:

Principle #16Partial or excessive action

3Reliability

If prioritization of emergency traffic is implemented, then reliability of emergency communication is improved, but productivity of normal communication deteriorates

Engineering Contradiction:

Improvereliability of emergency communicationVSAvoidproductivity of normal communication

Core Design Contradiction:

ReliabilityVSProductivity

Solution Approach 1:

The IAB link is segmented into different partitions that can be dynamically allocated between emergency and normal communications. The network controller divides the available resources into separate partitions, with one partition dedicated to emergency traffic prioritization and another for normal communication, allowing both services to operate simultaneously with appropriate resource allocation.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The partition configuration is dynamically adjusted based on the presence and urgency of emergency communications. When emergency traffic is detected, the system transitions to a partition configuration that prioritizes emergency reliability. When no emergency traffic is present, the system transitions to a configuration that optimizes normal communication productivity, enabling adaptive resource allocation.

Inventive Principle:

Principle #15Dynamics

Data Source

PatentUS11336366B2Dynamic adjustment of integrated access and backhaul link partition for emergency communications

Publication Date: 2022.05.17 AT&T INTELLECTUAL PROPERTY I L P

AI summary

In response to a determination that network communication traffic at a network node relates to an emergency communication, a network controller can be operable to analyze a network condition associated with the network node. Based on an analysis of the network condition, the network controller can facilitate an adjustment to a partition of an integrated access and backhaul link. The network controller can further be operative to determine whether an operator policy is applicable to the adjustment of the partition. Additionally, the network controller can be operable to facilitate the selection of a path to route the emergency communication based upon the network condition and the operator policy.