AMF Event Routing for Narrowed Mobility Device Groups
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing 5GC 3GPP standards face inefficiencies in handling events for groups of devices with narrowed mobility, leading to excessive signaling and resource waste due to unnecessary interactions with all AMFs in the PLMN, even when the devices are restricted to specific areas.
Innovation Solution
Implement a method that recognizes and utilizes the concept of narrowed mobility to optimize network procedures by targeting only the serving nodes within the restricted areas, such as AMFs, thereby reducing unnecessary signaling and resource usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the network handles events for groups of devices by interacting with all AMFs in the PLMN, then comprehensive event monitoring is achieved, but excessive signaling and resource waste occur
Solution Approach 1:
The patent applies local quality by transitioning from uniform interaction with all AMFs to targeted interaction with only those AMFs that serve the specific geographical areas where devices with narrowed mobility operate. The UDM identifies relevant AMFs based on the narrowed mobility area indication and directs event exposure requests only to those AMFs, optimizing resource utilization while maintaining reliable event monitoring for the restricted device group.
2Reliability
If the network contacts all AMFs to ensure complete device coverage, then all potential events are captured, but unnecessary resource consumption increases
Solution Approach 1:
The patent implements partial action by contacting only the subset of AMFs that are relevant to the narrowed mobility area rather than all AMFs in the PLMN. The UDM uses the narrowed mobility area indication to determine which AMFs need to be contacted, avoiding excessive actions with AMFs that do not serve the restricted areas, thus improving resource efficiency while maintaining adequate device coverage.
3Reliability
If event requests are sent to all AMFs in the PLMN, then comprehensive monitoring is ensured, but signaling time is excessive
Solution Approach 1:
The patent reduces signaling time by applying local quality - directing event exposure requests only to AMFs that serve the specific narrowed mobility area. The UDM identifies the relevant AMF subset based on area information and sends requests only to those AMFs, significantly reducing the time required compared to contacting all AMFs while maintaining complete monitoring for the restricted device group.
Data Source
AI summary
A computer-implemented method, performed by a first node. The method is for handling information pertaining to a group of devices. The first node operates in a communications system. The first node receives a first request from a second node to receive first information pertaining to an event for the group of devices. The request includes a first indication indicating that the group of devices is restricted to operate in one or more areas indicated by the second node. The first node also obtains, responsive to the received first request, second information regarding which one or more third nodes serve at least one of the indicated areas. The first node then sends, responsive to the obtained second information, a respective additional request to the one or more third nodes, requesting to receive the first information.