Signaling-less Call Setup via Observed Session State

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Solution Overview

Problem

Traditional wireless communication systems face inefficiencies in resource utilization and Quality of Service (QoS) due to excessive signaling overhead during call setup and teardown, especially in packet-switched networks, which leads to delayed and suboptimal application flows and inadequate support for advanced data services like video communication.

Innovation Solution

The system employs a shared memory space to store observed session state information, allowing for dynamic adjustment of traffic flows based on Quality of Experience (QoE) and resource demands, reducing signaling overhead by using a scheduling component to update policies and allocate resources efficiently, and incorporating artificial intelligence for automated feature management.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional signaling approach is used for call setup and teardown, then call establishment can be achieved, but signaling overhead is excessive and call setup is delayed

Engineering Contradiction:
Improvecall establishment reliabilityVSAvoidcall setup delay
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The patent extracts the call setup and teardown signaling from the traditional explicit signaling protocol and replaces it with implicit signaling derived from packet flow patterns. The system monitors and analyzes packet flows to automatically detect call establishment and termination without requiring traditional signaling exchanges, thereby eliminating signaling overhead and delay while maintaining reliable call management.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The system enables the network to self-monitor and self-manage call states by automatically detecting call setup and teardown through packet flow analysis. Instead of relying on external signaling from endpoints, the network autonomously determines call states by observing traffic patterns, reducing the need for signaling protocols and improving call setup speed.

Inventive Principle:
Principle #25Self-service

2Reliability

If circuit-switched systems reserve dedicated channels, then Quality of Service is guaranteed, but network resource utilization becomes inefficient

Engineering Contradiction:
ImproveQuality of Service guaranteeVSAvoidnetwork resource utilization
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The patent implements dynamic resource allocation by transitioning from static dedicated channel reservation to adaptive packet switching. The system continuously monitors packet flows and dynamically adjusts resource allocation based on actual traffic demands, allowing network resources to be flexibly shared among multiple users while maintaining QoS guarantees through observed flow patterns rather than fixed reservations.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system changes the fundamental parameter of resource allocation from fixed dedicated bandwidth to dynamic packet-based allocation. By monitoring packet flow characteristics and adapting resource distribution in real-time, the network achieves both QoS guarantees and improved resource utilization efficiency, eliminating the waste of reserved but unused bandwidth.

Inventive Principle:
Principle #35Parameter changes

3Adaptability or versatility

If packet-switched networks use best-effort delivery, then network flexibility increases, but Quality of Service cannot be guaranteed

Engineering Contradiction:
Improvenetwork flexibilityVSAvoidQuality of Service guarantee
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The patent introduces feedback mechanisms through continuous monitoring of packet flows and QoS parameters. The system observes traffic patterns, measures QoS metrics, and uses this feedback to dynamically adjust resource allocation and prioritize traffic accordingly. This closed-loop approach enables packet-switched networks to maintain flexibility while guaranteeing QoS through real-time adaptation based on observed conditions.

Inventive Principle:
Principle #23Feedback

4Ease of operation

If traditional signaling exchanges are performed, then call management can be achieved, but overhead increases by 10-100 folds

Engineering Contradiction:
Improvecall management capabilityVSAvoidsignaling overhead
Core Design Contradiction:
Ease of operationVSQuantity of substance

Solution Approach 1:

The patent extracts call management functionality from explicit signaling protocols and embeds it within the data plane through packet flow monitoring. By deriving call state information directly from observed traffic patterns rather than separate signaling messages, the system eliminates 10-100 folds of signaling overhead while maintaining full call management capability through implicit signaling.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The system makes the packet flow serve multiple functions simultaneously: data transmission and call state signaling. By analyzing packet patterns, the network extracts call setup, ongoing call, and teardown information without requiring dedicated signaling protocols, achieving multi-functionality that drastically reduces overhead while maintaining ease of call management.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentUS10069728B2Signaling-less dynamic call setup and teardown by utilizing observed session state information
Publication Date: 2018.09.04 AT&T INTELLECTUAL PROPERTY I L P
  • US10069728B2 patent drawing
  • US10069728B2 patent drawing
  • US10069728B2 patent drawing

AI summary

Signaling-less call setup and teardown by employing observed Quality of Experience (QoE) and resource demands. A system provides an environment for supersonic treatment of observed QoE and Quality of Service (QoS) demands for mobile applications. Specifically, a monitoring component is employed to determine session state information associated with a traffic flow, which includes observed QoE and resource demand data. The session state information is stored in a shared memory location and can be analyzed to modify and/or create a network policy for the traffic flow. The network policy is applied to one or more traffic flows to minimize signaling exchanges between a communication network and a mobile station.