Nokia has patented a method for isolating network slices in the CN domain. The method involves receiving a slice isolation policy, establishing an NSS isolation policy, and mapping it to either a network resource or application level isolation policy for efficient network function management. GlobalData’s report on Nokia gives a 360-degree view of the company including its patenting strategy. Buy the report here.

According to GlobalData’s company profile on Nokia, Adaptive video coding was a key innovation area identified from patents. Nokia's grant share as of January 2024 was 55%. Grant share is based on the ratio of number of grants to total number of patents.

Method for isolation of network slice in core network

Source: United States Patent and Trademark Office (USPTO). Credit: Nokia Corp

The granted patent (Publication Number: US11888700B2) discloses a method for isolating a network slice (NS) within a core network (CN) domain. The method involves receiving a slice isolation policy for a network slice subnet (NSS) in the CN domain and establishing an NSS isolation policy based on this slice isolation policy. The NSS isolation policy includes either a network resource isolation policy or an application level isolation policy. If the NSS isolation policy includes the network resource isolation policy, it is mapped to a network resource allocation policy for virtual and/or physical resources, which is then sent to network management functions for instantiation of the network service. On the other hand, if the NSS isolation policy includes the application level isolation policy, it is mapped to an application level policy for configuring network functions.

Furthermore, the patent also describes a network management unit that implements the method outlined above. This unit includes at least one processor and memory with computer program code to receive and establish NSS isolation policies based on slice isolation policies. It can map network resource isolation policies or application level isolation policies to corresponding policies for resource allocation or network function configuration. Additionally, the network management unit can receive information about network service instances and maintain mappings between NSS isolation policies and network service instances. It also has the capability to check for conflicts between NSS isolation policies of different network slices and trigger re-configuration or re-orchestration to resolve conflicts.

In summary, the patent presents a method and a network management unit for effectively isolating network slices within a core network domain by implementing specific isolation policies for network resources and application levels. This innovation aims to enhance network management efficiency and ensure seamless operation of network services within a complex network environment.

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GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.