Dynamic Network Capacity Allocation via Shadow Price Indications

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Solution Overview

Problem

Existing network capacity management systems fail to optimally allocate resources between different service or traffic classes in packet networks, as they assume fixed capacity allocations and do not effectively utilize congestion prices to maximize value generation.

Innovation Solution

The method and system adaptively adjust network capacity allocations between services or traffic classes based on congestion-influenced 'shadow price indications,' which represent the marginal value of additional capacity, using shadow price functions that consider both traffic rates and allocated capacities to optimize capacity distribution.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If fixed capacity allocations are used for different service classes, then network management is simplified, but resource utilization efficiency and value generation are suboptimal

Engineering Contradiction:
Improvenetwork management complexityVSAvoidvalue generation from data packet transmission
Core Design Contradiction:
Device complexityVSProductivity

Solution Approach 1:

The patent implements dynamic capacity allocation by continuously adjusting the capacity assigned to different service classes based on real-time shadow price indications. The system monitors congestion levels and service-specific shadow prices, then dynamically reallocates network capacity to maximize value generation, transforming the static capacity management into an adaptive dynamic system that responds to changing network conditions and service demands.

Inventive Principle:
Principle #15Dynamics

2Productivity

If capacity is reallocated based on shadow price indications, then value generation is maximized, but system complexity increases

Engineering Contradiction:
Improvevalue generation from data packet transmissionVSAvoidcapacity management system complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent employs feedback mechanisms where shadow price indications are calculated based on congestion prices and service-specific factors, then fed back into the capacity allocation decision-making process. The system continuously monitors network state, calculates shadow prices for different service classes, and uses this feedback information to adjust capacity allocations, creating a closed-loop control system that adapts to changing conditions while systematically managing complexity through structured feedback processing.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The patent changes the key parameter of capacity allocation from fixed to variable, driven by shadow price indications that reflect both congestion levels and service-specific characteristics. By introducing shadow price as a controlling parameter and allowing capacity allocations to vary based on this parameter, the system achieves optimized value generation while managing complexity through parameter-driven decision rules rather than complex heuristic algorithms.

Inventive Principle:
Principle #35Parameter changes

3Ease of operation

If congestion prices are used for traffic management, then traffic control within service classes improves, but capacity allocation between service classes remains suboptimal

Engineering Contradiction:
Improvetraffic control within service classVSAvoidcapacity allocation efficiency between service classes
Core Design Contradiction:
Ease of operationVSProductivity

Solution Approach 1:

The patent merges two previously separate functions: congestion-based traffic control within service classes and capacity allocation between service classes. By combining congestion prices with service-specific shadow price indications, the system creates a unified capacity management framework that simultaneously optimizes both intra-class traffic control and inter-class capacity allocation, eliminating the suboptimality that arose when these functions were handled separately.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentEP2545684B1Capacity adaptation between service classes in a packet network.
Publication Date: 2017.03.08 BRITISH TELECOM PLC
  • EP2545684B1 patent drawing
  • EP2545684B1 patent drawing
  • EP2545684B1 patent drawing

AI summary

A method and system is described that adjusts the allocated capacity of a network between services, or service or traffic classes, in dependence on a congestion-influenced shadow price indication in respect of each service or class. In this respect, instead of viewing the congestion price as a cost of using already allocated unit of capacity, such a shadow price indication can be viewed as an indicator of the value obtainable from allocating an extra unit of capacity to a service or class. By so doing the shadow price indication becomes a factor to be taken into account in deciding on capacity allocation between services or classes, with a high shadow price indication for a service or class indicating that additional value would likely be obtained by allocating an additional unit of capacity to the service or class.