Wireless Access Node Application Identification Handover
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In communication systems, preserving application identification information during handover between base stations is challenging, leading to potential disruptions in user experience due to the need for re-identification of applications, which can be time-consuming and resource-intensive, and may result in gaps where application information is not available.
Innovation Solution
A wireless access node with a transmitter-receiver module, backhaul interface module, and processor module that inspects data packets to detect data streams, determine application classes and characteristics, segregates packets into scheduling groups and queues, and transfers this information to the target base station during handover, allowing seamless application awareness and prioritization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If application identification information is not transferred during handover, then the target base station can operate with simpler procedures, but the user experience is disrupted due to re-identification delays and gaps in application information availability
Solution Approach 1:
The source base station performs application identification and stores the identification information before handover occurs. This preliminary action ensures that when handover happens, the target base station receives ready-made application identification data, eliminating the need for time-consuming re-identification and maintaining continuous user experience.
Solution Approach 2:
The patent introduces an intermediary mechanism where application identification information is transferred from the source base station to the target base station through a defined interface during handover. This intermediary transfer of information bridges the gap between base stations, ensuring continuity without requiring the target station to perform complex re-identification procedures.
2Reliability
If application identification information is transferred during handover, then user experience continuity is maintained, but the handover procedure becomes more complex and resource-intensive
Solution Approach 1:
The patent extracts only the essential application identification information from the complex packet data and transfers this specific subset during handover. By taking out only the necessary identification fields rather than transferring entire packet streams or all data, the solution maintains application continuity while minimizing the added complexity of the handover procedure.
Solution Approach 2:
Application identification is performed in advance by the source base station before handover, so that when handover occurs, the identification information is already available and ready for transfer. This preliminary processing avoids the need for complex real-time identification procedures at the target base station, thereby reducing handover complexity while maintaining information continuity.
3Adaptability or versatility
If deep packet inspection is performed to identify applications, then application-aware scheduling can be achieved, but the processing complexity and resource consumption increase significantly
Solution Approach 1:
The source base station performs application identification through packet inspection before handover and stores the results. This preliminary action allows the target base station to inherit the identification results without performing its own complex inspection, thereby achieving application-aware scheduling at the target station while distributing the inspection complexity to the source station that already has the data.
Solution Approach 2:
Instead of performing complex packet inspection at the target base station, the patent copies the application identification information from the source base station. This copying approach achieves the same application-aware scheduling capability at the target station without duplicating the complex inspection process, thereby reducing overall system complexity while maintaining versatility.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
Systems and methods preserve application identification information on handover in a communication network. End user quality of experience is improved by determining applications associated with communications to and from the end user. The applications may include application classes and specific applications. The application information is used to schedule packets such that the end user quality of experience is improved for that application. When the end user is handed over between wireless access nodes, the access nodes transfer application information so that the improved end user quality of experience is maintained.