Backup Communication Session Resource Allocation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing communication methods waste resources by maintaining redundant communication paths that are not needed unless a failure occurs, as they are always active, which is inefficient when no failure happens.
Innovation Solution
A method where a second communication session is established as a backup for the first session but kept inactive until needed, avoiding resource allocation for data exchange until a failure is detected in the first session, allowing swift activation of the backup path without wasting resources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If redundant communication connections are provided in parallel for safeguarding against failure, then reliability is improved, but communication resources are wasted when no failure occurs
Solution Approach 1:
The patent implements dynamic resource allocation where the backup communication connection transitions between inactive (resource-saving) and active (resource-consuming) states based on the operational status of the primary connection. Resources are allocated to the backup path only when failure is detected, making the system adaptive rather than static.
Solution Approach 2:
The patent establishes the backup communication connection in advance but keeps it inactive with resources not allocated, allowing immediate failover capability. The backup path is prepared beforehand (registration and session establishment) but resources are only consumed when actually needed, combining prevention with resource efficiency.
2Loss of time
If backup communication resources are always allocated, then failure recovery speed is improved, but resource efficiency deteriorates
Solution Approach 1:
The system dynamically adjusts resource allocation timing - resources are allocated to the backup connection at the moment of failure detection rather than continuously. This dynamic approach minimizes the time resources are not being used productively while ensuring rapid failover capability when needed.
Solution Approach 2:
The patent changes the resource allocation parameter from a constant state (always allocated) to a conditional state (allocated only upon failure detection). This parameter change optimizes the balance between recovery speed and resource efficiency by adjusting resource availability based on system conditions.
3Reliability
If a second communication session is established as backup, then service continuity is improved, but device complexity increases
Solution Approach 1:
The patent performs preliminary actions of registering the backup access network and establishing the second PDU session in advance, but keeps these sessions inactive with no resources allocated. This preliminary setup reduces failover time while the inactive state prevents complexity from manifesting in resource management during normal operation.
Solution Approach 2:
The patent extracts the backup session management from the active resource allocation process. The second PDU session is established and maintained separately from the active first session, with resource allocation decoupled - the backup session exists independently but consumes resources only when activated upon failure.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
According to one embodiment, a method for safeguarding against communication failure is described comprising receiving a first request from a mobile terminal for an establishment of a communication session, establishing a first communication session via a first radio access network, receiving a second request from the mobile terminal for a communication session, determining whether the second communication session is to be a backup communication session for the first communication session, and establishing a second communication session via the second radio access network, wherein, if the second communication session is to be a backup communication session for the first communication session, the second radio access network is controlled to avoid allocation of communication resources for data exchange between the mobile terminal and the terminal via the second communication until being notified otherwise.