SBC-Localized Handoff for Seamless Network Transitions
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Solution Overview
Problem
Conventional handoff processes in communication networks require constant processing by communication devices, leading to increased memory usage and reduced battery life, as they need to execute scanning algorithms to determine network conditions and initiate handoff requests.
Innovation Solution
Implementing intelligent Session Border Controllers (SBCs) that can autonomously handle handoffs between networks by detecting changes in IP addresses within established calls, allowing subsequent packet data to be routed to the new IP address without the need for device-initiated handoff messaging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional handoff processes are implemented where communication devices execute scanning algorithms to detect network conditions and initiate handoff requests, then handoff control and reliability are improved, but device memory usage increases and battery life decreases
Solution Approach 1:
The SBC performs handoff detection and control autonomously by monitoring IP address changes in packet data, eliminating the need for communication devices to execute scanning algorithms. The SBC updates its own routing tables and redirects packets to new IP addresses without device intervention, thereby conserving device energy and battery life while maintaining reliable handoff control.
2Reliability
If communication devices continuously execute scanning algorithms to monitor network conditions for handoff initiation, then handoff reliability is improved, but device processor load and memory usage increase
Solution Approach 1:
The handoff detection and control functions are extracted from communication devices and centralized at the SBC. The SBC monitors IP address changes in packet data and manages handoff procedures autonomously, removing the burden of executing scanning algorithms from communication devices. This reduces device processor load and memory usage while maintaining reliable handoff control through centralized management.
3Productivity
If SBC autonomously detects IP address changes and routes packets to new addresses without device-initiated handoff messaging, then network efficiency is improved, but the complexity of SBC routing management increases
Solution Approach 1:
The SBC acts as an intermediary between the communication device and the packet-switched network. It monitors IP address changes in outgoing packet data, updates its routing table, and redirects incoming packets to the new IP address. This intermediary role enables autonomous handoff management that improves network efficiency by eliminating device-initiated handoff messaging while centralizing routing management complexity at the SBC.
Data Source
AI summary
Systems and methods are provided to facilitate the performance of a Session Border Controller (SBC)-localized handoff. As part of the SBC-localized handoff, a communication device may transmit packets within a data call to an SBC via a first IP address. Subsequently, the communication device may be assigned a second IP address. The communication device may then transmit further packets to the SBC via the second IP address. In response, the SBC may route all traffic within the data call direct to the communication device via the second IP address, regardless of whether the traffic indicates that the traffic should be delivered to the first IP address.