PCC Architecture Resource Confirmation for Mobile TV
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Solution Overview
Problem
Current PCC architecture lacks the ability to inform applications about the availability of transmission resources during the setup of application service sessions, leading to potential service failures and poor user experience for non-peer-to-peer services like Mobile TV, which require resource reservation confirmation.
Innovation Solution
The proposed solution involves modifying the PCC architecture to allow the Application Function (AF) to request and receive confirmation on the availability of transmission resources before progressing with the service session setup, by modifying interfaces such as Rx and Gx to include resource status notifications and error reporting, enabling the AF to adapt its behavior based on resource allocation confirmation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the PCC architecture is modified to provide transmission resource availability confirmation to applications, then service reliability is improved, but device complexity increases
Solution Approach 1:
The patent implements preliminary action by having the PCRF determine transmission resource availability and send confirmation notifications to the AF before the application service session is fully established. This allows the application to know in advance whether resources are available, improving service reliability by preventing setup of sessions that cannot be fulfilled, while the complexity is managed through automated preliminary checks rather than complex runtime coordination mechanisms.
2Reliability
If the PCC architecture waits for transmission resource confirmation before progressing service setup, then service quality is improved, but service setup time increases
Solution Approach 1:
The patent applies dynamics by making the service setup process adaptive based on resource availability. The AF can choose to wait for resource confirmation if quality is critical, or proceed without waiting if speed is more important. The PCRF dynamically determines whether to send confirmation notifications based on service characteristics, allowing the system to flexibly balance between service quality and setup time requirements for different application scenarios.
3Adaptability or versatility
If the PCC architecture implements resource status notifications and error reporting, then adaptability is improved, but device complexity increases
Solution Approach 1:
The patent implements feedback mechanisms where the PCRF sends resource status notifications and error reports to the AF. This allows the application to adapt its behavior based on actual network conditions and resource availability. The feedback is implemented through standardized notification messages that provide essential information without requiring complex bidirectional communication protocols, thus improving adaptability while managing device complexity through streamlined feedback channels.
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AI summary
A method for an application function (AF) device in a wireless cellular network including the steps of determining with a processing unit whether an application service requires confirmation that a transmission path for corresponding application service media is available to progress set up of an application service session. There is the step of sending a message generated by the processing unit through a network interfacing unit to a policy and charging rule function (PCRP) server to indicate whether the application service requires confirmation that the transmission path for the corresponding application service media is available. An application function (AF) device in a wireless cellular network including a processing unit which determines whether an application service requires confirmation that a transmission path for corresponding application service media is available to progress set up of an application service session. The AF device includes a network interfacing unit that sends a message generated by the processing unit to a policy and charging rule function (PCRF) server indicating whether the application service requires confirmation that the transmission path for the corresponding application service media is available. A method for a policy and charging rule function (PCRF) server in a wireless cellular network. A policy and charging rule function (PCRF) server in a wireless cellular network.