Nomadic Node Attachment via Dynamic Resource Allocation
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Solution Overview
Problem
Current cellular communications networks face challenges in providing reliable and cost-efficient backhaul solutions for networks with dynamic topologies, such as Moving Networks (MNs) and Ultra-Dense Networks (UDNs), due to varying traffic demands and the need for dynamic transport network resource allocation.
Innovation Solution
The implementation of a method for a network control entity to manage the attachment of nomadic network nodes by determining resource availability in the transport network, dynamically allocating resources as needed, and optimizing attachment procedures to ensure that traffic and service demands are met, utilizing Dense Wavelength Division Multiplexing (DWDM) architecture.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the backhaul network is over-dimensioned to accommodate peak traffic demands, then reliability is improved, but cost increases
Solution Approach 1:
The patent implements dynamic resource allocation in the transport network, where resources are allocated based on real-time traffic demands and service level agreements. The network control entity dynamically adjusts resource allocation for anchor nodes serving nomadic nodes, allowing the system to adapt to varying traffic conditions without over-provisioning for peak demands, thus resolving the contradiction between reliability and resource quantity.
2Adaptability or versatility
If transport network resources are dynamically allocated to meet nomadic node requirements, then adaptability is improved, but device complexity increases
Solution Approach 1:
The patent introduces a network control entity as an intermediary that manages transport network resource allocation. This intermediary receives attach requests from anchor nodes, evaluates service level agreements, determines resource availability, and makes allocation decisions. By centralizing the control function, the system achieves high adaptability while managing complexity through a dedicated control mechanism rather than distributed complexity across multiple nodes.
3Loss of substance
If existing transport network resources are utilized for nomadic node attachment, then loss of substance is reduced, but reliability may worsen if resources are insufficient
Solution Approach 1:
The patent implements a feedback mechanism where the network control entity evaluates the availability of transport network resources before accepting attach requests for nomadic nodes. The system checks whether existing resources can meet the required service level agreements and provides feedback to the anchor node regarding resource availability. This feedback loop ensures that resources are efficiently utilized while maintaining service reliability by only accepting attachments that can be supported by available resources.
Data Source
AI summary
Systems and methods related to attachment of nomadic network nodes in a cellular communications network are disclosed. In one embodiment, a method of operation of a network control entity comprises receiving an attach request for attachment of a nomadic node to an anchor node, where the attach request comprises information indicative of one or more requirements of the nomadic node related to traffic and/or service demands. The method further comprises determining whether the one or more requirements of the nomadic node can be fulfilled with existing resources of a transport network that are allocated for the anchor node and, if the one or more requirements of the nomadic node can be fulfilled with the existing resources of the transport network that are allocated for the anchor node, sending, to the anchor node, an attach accept message to thereby accept attachment of the nomadic node to the anchor node.