Media Gateway Controller Pull Mode for Resource Provision
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Solution Overview
Problem
The existing H.248 protocol only supports the Push mode for media gateway controllers (MGC) to deliver resource provision decisions to media gateways (MG), leading to inefficient use of storage space in MGs, as they must store decisions until a media stream establishing request is received, and the decisions may not align with the final service requirement and resource status.
Innovation Solution
Implementing a Pull mode where the media gateway (MG) requests a resource provision decision from the media gateway controller (MGC), allowing the MGC to make and deliver decisions only upon receipt of a decision request, thereby supporting the Pull mode and reducing storage occupancy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the MGC delivers resource provision decisions to the MG actively (Push mode), then the service requirement can be met, but the MG storage space is occupied and decisions may not align with final service requirements
Solution Approach 1:
The patent inverts the traditional Push mode by implementing a Pull mode where the MG requests resource provision decisions from the MGC only when needed (upon receiving media stream establishing requests), rather than the MGC proactively delivering decisions. This inversion eliminates unnecessary storage occupancy while ensuring decisions are delivered reliably when required for service fulfillment.
2Productivity
If the MGC delivers resource provision decisions actively, then resource provisioning can be performed, but the system complexity increases due to storage and timing management requirements
Solution Approach 1:
The patent applies self-service by enabling the MG to autonomously determine when it needs resource provision decisions by monitoring for media stream establishing requests, and then actively requesting decisions from the MGC. This eliminates the need for complex MGC-side storage and timing management mechanisms, as the MG manages its own decision retrieval timing.
3Force
If the MGC delivers resource provision decisions in advance, then resource allocation can be prepared, but the decisions may not be suitable for the actual service requirement and resource status
Solution Approach 1:
The patent applies preliminary action by having the MGC prepare to make resource provision decisions based on pre-obtained service requirement information and current resource status, but only actually delivers these decisions when the MG requests them. This ensures decisions are made with up-to-date information while avoiding the delivery of obsolete decisions that would occur with advance delivery.
Data Source
AI summary
A method for a media gateway controller (MGC) to deliver a resource provision decision to a media gateway (MG) includes: the MGC receives a decision request from the MG and makes a resource provision decision according to service requirement information and/or resource status information, and delivers the resource provision decision to the MG. The present invention also discloses an MGC, an MG and a system comprising the MGC and MG. In the invention, the MGC does not deliver the resource provision decision already made according to service requirement information and/or resource status information until reception of a decision request from the MG so that the MGC delivers a resource provision decision passively upon request of the MG. The Pull mode for delivery of the resource provision decision is thus supported.