Core Network Control Node Subscription Segmentation for Access Types
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Solution Overview
Problem
Current communication networks lack the ability to provide differentiated subscription information based on the type of Access Network and Radio Access Technology used by User Equipment, limiting service control and flexibility.
Innovation Solution
A method is introduced where a control node in the core network receives a registration request from an access network, transmits a subscription request message to a subscriber node with identification of the access network and Radio Access Technology, and receives subscription information based on these specifics, allowing for granular service control and flexibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If common subscription data is provided to all access types via a unified control node, then device complexity is reduced and architecture is simplified, but service control granularity and flexibility deteriorate
Solution Approach 1:
The patent segments subscription data into multiple access-specific data sets, where each data set corresponds to a specific access network type (3GPP or non-3GPP). The control node maintains separate subscription information for different access types, allowing granular service control per access network while using a single unified control node architecture.
Solution Approach 2:
The patent applies local quality by providing different subscription data characteristics tailored to each access network type. The control node selects and provides specific subscription data based on the access type identifier, ensuring that each access network receives customized subscription information appropriate to its characteristics rather than a generic unified data set.
2Adaptability or versatility
If different subscription information is provided for each access network type, then service control flexibility is improved, but device complexity and data management burden increase
Solution Approach 1:
The patent implements preliminary action by pre-organizing subscription data into access-type-specific data sets before runtime operations. The control node maintains pre-segmented subscription information indexed by access network type, enabling efficient retrieval and provision of appropriate subscription data without complex real-time processing or decision-making during UE registration.
Solution Approach 2:
The patent introduces an access type identifier as an intermediary element that mediates between the UE's registration request and the appropriate subscription data set. This identifier acts as a key that automatically routes the registration process to the correct pre-segmented subscription data, simplifying data management by providing a straightforward lookup mechanism rather than requiring complex matching logic.
3Adaptability or versatility
If subscription data is customized per Access Network and RAT type, then service differentiation capability is improved, but information management complexity and processing overhead increase
Solution Approach 1:
The patent applies universality by designing a multi-functional control node that handles both 3GPP and non-3GPP access networks through a unified interface and process flow. The same control node and subscription data provision mechanism serves multiple access types, reducing the need for separate specialized systems while still providing customized subscription data for each access type through the access type identifier-based selection process.
Data Source
AI summary
A method of registering a User Equipment, UE, in a communication network, said method comprising the steps of receiving, by a control node in said core network, from an access network, a registration request message for registering a UE in said communication network, transmitting, by said control node, to a subscriber node in said communication network, a subscription request message, wherein said subscription request message requests subscription information for said UE and comprises an identification of a type of said access network, AN, via which said UE registration request message is received and an identification of a Radio Access Technology, RAT, used by said UE for connecting to said access network, receiving, by said control node, from said subscriber node, a subscription response message comprising said subscription information for said UE based on said AN and said RAT and transmitting, by said control node, to said UE, a registration complete message for indicating that said UE has registered in the communication network.