Bandwidth Reservation in Packet Networks Using Unique Link IDs
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Solution Overview
Problem
Conventional bandwidth reservation methods in packet-oriented networks are inefficient as they reserve transmission capacities for all alternate destination network elements, leading to unnecessary resource consumption, especially in scenarios where only one connection is established.
Innovation Solution
A method that allocates a unique identification number to a communication link, determining the maximum bandwidth request across associated communication paths and reserving bandwidth only for the actual connection, thereby preventing multiple reservations and optimizing resource usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If bandwidth is reserved for all alternate destination network elements, then connection reliability is improved, but network resource consumption increases
Solution Approach 1:
The patent segments the bandwidth reservation process into two phases: pre-connection reservation for all alternate paths, and post-connection release for unsuccessful paths. This allows the system to guarantee connection reliability by reserving bandwidth on multiple paths while minimizing resource consumption by releasing reservations on paths not ultimately used.
Solution Approach 2:
The patent applies preliminary action by reserving bandwidth on all alternate communication paths before the actual connection is established. This preliminary reservation ensures that when a connection is needed, reliable paths are already prepared. After connection establishment, reservations on unsuccessful alternate paths are released, optimizing resource usage.
2Reliability
If bandwidth is reserved for all alternate communication paths, then call setup reliability is improved, but transmission capacity availability decreases
Solution Approach 1:
The patent segments the communication paths into successful and unsuccessful paths based on connection establishment outcomes. Bandwidth reservations are maintained only on successful paths while being released on unsuccessful paths, thereby maintaining call setup reliability while improving transmission capacity availability for other uses.
Solution Approach 2:
The patent discards bandwidth reservations on communication paths that were not successfully established, and recovers these resources for other uses. This principle allows the system to maintain reliability on successful paths while freeing up transmission capacity on paths that are no longer needed.
3Adaptability or versatility
If individual bandwidth reservations are made for each call setup, then connection specificity is improved, but device complexity increases
Solution Approach 1:
The patent merges the bandwidth reservation management for multiple alternate paths under a unified control mechanism. Instead of independently managing reservations for each path, the system coordinates reservations across all alternate paths, releasing them collectively when connections are established or failed, thereby reducing management complexity while maintaining connection specificity.
Data Source
AI summary
Method for reserving bandwidth in a packet-oriented network, in which a packet-oriented communication link is set up between a plurality of network elements using at least one communication path. In this case, an identification number which is unique to the communication link and is intended to identify the communication paths associated with the communication link is allocated. A bandwidth value for a respective communication path is then determined as the maximum bandwidth required by network elements in this communication path, and bandwidth in the respective communication path is reserved using the bandwidth value.