Virtual IP Registration for MTC Devices in Mobile Networks
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Solution Overview
Problem
The increasing number of Machine Type Communication (MTC) devices in mobile communication systems leads to an IP address shortage, as existing methods require persistent IP address allocation and management, causing high processing and memory loads, and are not economically efficient for supporting large amounts of MTC devices.
Innovation Solution
A method and apparatus that allow a User Equipment (UE) to register with a mobile communication system without initial bearer path and IP address allocation, using a virtual IP address and a new registration procedure, and allocate radio resource, bearer resource, and IP address through a paging process when a packet is addressed to the UE, enabling efficient management and reducing the load on the network.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If persistent IP address allocation and management is implemented for MTC devices, then service reliability is improved, but IP address shortage and network load increase
Solution Approach 1:
The patent implements dynamic IP address allocation where MTC devices are assigned IP addresses only when needed for data transmission rather than persistently. The network dynamically assigns IP addresses from a pool during active communication sessions and releases them when sessions end, allowing the same IP addresses to be reused for different devices over time.
Solution Approach 2:
The patent changes the state parameter of IP address allocation from persistent to temporary/on-demand. By modifying the allocation duration parameter and introducing a session-based management model, the system can support a larger number of MTC devices with limited IP address resources while maintaining service reliability during active communications.
2Reliability
If initial bearer path and IP address allocation is performed for all UEs, then connection reliability is improved, but processing load and memory requirements increase
Solution Approach 1:
The patent extracts the bearer path setup and IP address allocation steps from the initial attachment procedure for MTC devices. These resource allocation functions are separated and performed only when downlink data arrives, reducing the processing load and memory requirements during initial device registration while maintaining connection reliability when data transmission is needed.
Solution Approach 2:
The patent performs preliminary registration of MTC devices without immediate resource allocation. The network maintains minimal device information during attachment, and only initiates bearer path setup and IP address allocation as preliminary actions when actual data transmission requirements arise, optimizing network resource utilization.
3Reliability
If MTC devices are registered with full resource allocation, then service quality is improved, but economic efficiency decreases
Solution Approach 1:
The patent implements partial resource allocation where MTC devices receive only the minimum necessary resources for registration (identity, location) without full bearer paths and IP addresses. Resources are allocated partially and on-demand based on actual data transmission needs, improving economic efficiency by avoiding unnecessary resource consumption while maintaining service quality during active communications.
Data Source
AI summary
The present relates to a method for providing a terminal with a service in a mobile communication system which includes transmitting to mobility management entity an attach request message for initiating registration of the terminal having a virtual IP address with the mobile communication system; registering, at the mobility management entity, location of the terminal with a home subscriber server; and completing the registration by transmitting an attach accept message from the mobility management entity to the terminal. The present invention is capable of registering a terminal with a mobile communication system initially without bearer path and IP address allocation and, when a packet address to the terminal occurs, allocating the radio resource, bearer resource, and IP address through paging procedure, thereby proving the UE with the service.