Telecommunications Attach State Control with Staged Subscription Data
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Solution Overview
Problem
The high registration of MTC devices in telecommunications networks leads to inefficient use of control plane resources and increased costs due to the large number of MTC devices that send/receive only low amounts of user plane data, while non-registration results in wastage of broadcast resources.
Innovation Solution
A method and telecommunications node that controls the attach state by receiving a first set of subscription data insufficient for a communication session, followed by a second set when needed, optimizing resource use and maintaining network awareness of device location.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If MTC devices are registered in the telecommunications network, then network awareness of device location is maintained, but control plane resources are inefficiently used and costs increase
Solution Approach 1:
The patent segments the attach state into multiple levels: partial attach state and full attach state. In the partial attach state, the MTC device is registered with the network for location awareness but without establishing a default bearer, reducing control plane resource consumption. The device can be triggered to transition to full attach state when communication is needed, thus resolving the contradiction between maintaining network awareness and optimizing resource efficiency.
2Productivity
If MTC devices are not registered in the telecommunications network, then control plane resources are saved, but broadcast resources are wasted
Solution Approach 1:
The patent implements a dynamic attach state mechanism where MTC devices can transition between partial attach state and full attach state based on communication needs. When in partial attach state, devices remain partially registered allowing efficient triggering through broadcast channels without maintaining full registration. This dynamic state change enables the system to adapt between resource saving and broadcast efficiency based on actual communication requirements.
3Reliability
If full subscription data is transferred to the attach control node, then communication sessions can be established, but resource consumption increases
Solution Approach 1:
The patent applies partial action by transferring only a first set of subscription data (insufficient for full communication session) to the attach control node in the partial attach state. The complete second set of subscription data is transferred only when needed to establish communication sessions. This partial data transfer approach reduces resource consumption while maintaining the ability to establish sessions when required.
Data Source
AI summary
The invention relates to a method and telecommunications node for controlling an attach state of a user equipment in an attach control node of a telecommunications system further comprising a subscriber database containing subscription data of the user equipment. The method comprises receiving authentication data in the attach control node if an authentication step is required. Following the authentication step, if any, receiving in a first transfer stage a first set of subscription data from the subscriber database and storing the first set of subscription data in the attach control node, wherein the first set of subscription data is insufficient for enabling establishing a communication session between the user equipment and the telecommunications system. If establishing a communication session is required between the user equipment and the telecommunications network, receiving in a second transfer stage following the first transfer stage a second set of subscription data from the subscriber database in the attach control node, and storing the second set of subscription data in the attach control node, wherein the combination of the first set of subscription data and the second set of subscription data is sufficient for enabling establishing a communication session between the user equipment and the telecommunications network.