Broadcast Session Policy Control With Proactive MB-SMF Updates
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Solution Overview
Problem
In existing mobile telecommunication systems, there is a lack of efficient mechanisms for policy control during multicast/broadcast sessions, leading to unnecessary signaling and resource allocation issues due to potential policy updates, which can result in duplicated signaling and inefficient resource management.
Innovation Solution
Implementing a multicast/broadcast session management function (MB-SMF) that receives policy authorization indications from a network exposure function (NEF) or multicast/broadcast service function (MBSF) to manage policy control sessions proactively, using timers and policy updates to optimize resource allocation and minimize redundant signaling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If policy control sessions are established for all multicast/broadcast sessions, then policy authorization and resource allocation are improved, but signaling overhead and system complexity increase
Solution Approach 1:
The patent applies preliminary action by establishing policy control sessions proactively before multicast/broadcast sessions begin. The MB-SMF receives policy authorization indications from NEF or MBSF and requests policy control session creation in advance, allowing policies to be ready before actual resource allocation is needed, thus avoiding reactive signaling during session execution
Solution Approach 2:
The patent extracts the policy control session establishment process from the general session management flow. By separating policy authorization into a distinct preliminary step handled by MB-SMF, the system can manage policy control independently from resource allocation, reducing coupled signaling overhead while maintaining reliable policy authorization
2Manufacturing precision
If policy updates are performed frequently to ensure accurate resource allocation, then resource management accuracy is improved, but signaling frequency and network load increase
Solution Approach 1:
The patent implements feedback mechanisms where the MB-SMF monitors multicast/broadcast session status and receives policy authorization indications that trigger policy control session updates. This feedback-driven approach ensures policy updates occur only when necessary based on actual session conditions, maintaining resource allocation accuracy while avoiding unnecessary network signaling
Solution Approach 2:
The system employs periodic policy control session establishment and updates at strategically determined intervals based on session lifecycle and policy requirements. Rather than continuous or frequent updates, the MB-SMF manages policy sessions periodically, reducing network load while ensuring resource allocation remains accurate throughout the broadcast session duration
Data Source
AI summary
Systems, methods, apparatuses, and computer program products for policy control for broadcast sessions. One method may include receiving, by a multicast/broadcast session management function, at least one broadcast session creation request comprising at least one broadcast session indication associated with at least one policy control function. The multicast/broadcast session management function may receive at least one policy update from the at least one policy control function, and transmit at least one resource allocation request associated with at least one broadcast session transmission to at least one application management function.