Base Station Attach Pre-Authorization for 5G NSA Signaling Reduction
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Solution Overview
Problem
Current telecommunication systems face high signaling load and delay during device connection and disconnection between different communication signals, particularly in 5G non-standalone architectures, due to the lack of a smart mechanism to proactively gauge device and network capabilities.
Innovation Solution
Collecting device information from communication devices and sending it to a core network as part of an attach request to determine authorization for connection to a telecommunication signal, thereby streamlining the connection process and reducing signaling transitions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a device connects to multiple telecommunication signals and terminates connections during transitions, then the device can access different network services and geographical locations, but the signaling load and connection delay increase significantly
Solution Approach 1:
The base station proactively determines device capability and authorization status before the device actually requests connection. The base station pre-evaluates whether the device should be allowed to connect to the non-standalone node and pre-processes the attach request, so that when the device initiates connection, the authorization decision is already prepared, reducing the time required during actual connection transitions.
2Productivity
If the base station processes attach requests without proactive device capability analysis, then the processing is simpler and faster, but the signaling load on the core network increases and connection efficiency decreases
Solution Approach 1:
The attach request processing is divided into two segments: (1) The base station performs local evaluation of device capability and authorization status using collected device information, and (2) The core network receives a pre-processed attach request with already-determined authorization status. This segmentation reduces the signaling load on the core network while maintaining processing accuracy.
Solution Approach 2:
The base station performs preliminary analysis of device information and determines authorization status before forwarding the attach request to the core network. This preliminary action reduces the processing burden on the core network and decreases overall signaling load.
3Reliability
If the base station collects and analyzes device information proactively, then the connection authorization is more accurate and efficient, but the device complexity and information processing requirements increase
Solution Approach 1:
The base station uses device information that is already provided by the device in its initial attach message. The base station analyzes this self-provided information to determine device capability and authorization status, eliminating the need for additional information collection mechanisms and reducing overall system complexity.
Data Source
AI summary
A computer-implemented method according to one embodiment includes collecting device information from at least a first device, and receiving, from the first device, a first request to attach to a first base station. In response to receiving the first request, it is determined whether a signal broadcasted from the first base station includes public land mobile network (PLMN) information of a first type of telecommunication signal. In response to a determination that the signal broadcasted from the first base station includes the PLMN information, a second request is sent to a core network to connect the first device to a node associated with the first type of telecommunication signal of the first base station. In response to receiving an indication that the first device is authorized to connect, a connection is allowed to be established between the first device and the node associated with the first type of telecommunication signal.