Inter-Technology Network Signaling Filtering for Dual-Mode Devices
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Solution Overview
Problem
In inter-technology networks, excessive signaling resource wastage occurs due to the inability to accurately determine which messaging services are supported by dual-mode mobile devices, leading to continuous rejection of unsupported circuit voice pages and inefficient resource allocation between circuit and packet data RANs.
Innovation Solution
A method where a first network node indicates to a networking device which messaging associated with a second access network technology will be supported by a remote unit, allowing the device to prevent the conveyance of unsupported messaging, thereby reducing unnecessary signaling and improving resource allocation efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the inter-technology network continuously attempts to convey all messaging to dual-mode mobile devices, then complete service coverage is maintained, but signaling resource wastage increases due to continuous rejection of unsupported messaging
Solution Approach 1:
The network node performs preliminary action by indicating to the networking device which messaging services are supported by the dual-mode mobile device before actual messaging conveyance occurs. This advance information allows the networking device to pre-filter unsupported messaging, preventing unnecessary signaling attempts and resource wastage while maintaining reliable service delivery for supported messaging types
Solution Approach 2:
The system implements feedback mechanisms where the network node provides information about supported messaging services to the networking device. This feedback loop enables the networking device to adjust its messaging conveyance behavior accordingly, stopping attempts to deliver unsupported messaging while maintaining coverage for supported services, thus eliminating signaling resource wastage
2Adaptability or versatility
If the network conveys all messaging types to dual-mode mobile devices, then service versatility is maintained, but processing overhead increases due to continuous rejection handling
Solution Approach 1:
The network node performs preliminary identification and indication of supported messaging services before messaging conveyance. This advance filtering action reduces the volume of messaging that requires processing and rejection handling, thereby reducing processing overhead while maintaining service versatility for supported messaging types
Solution Approach 2:
The system extracts and separates unsupported messaging from the messaging stream by using the indication information from the network node. This extraction allows the networking device to filter out messaging that should not be conveyed, reducing the processing burden on the system while maintaining full service versatility for supported messaging
3Reliability
If the network attempts to deliver all circuit voice pages to mobile devices, then service completeness is maintained, but signaling traffic over inter-technology interfaces increases
Solution Approach 1:
The network node performs preliminary indication of which messaging services are supported by the mobile device before circuit voice page delivery. This advance information enables the networking device to filter and forward only supported messaging types, maintaining service completeness for supported services while significantly reducing signaling traffic volume over inter-technology interfaces
Solution Approach 2:
The system extracts and removes unsupported circuit voice messaging from the signaling traffic stream using the indication information. This extraction action maintains service completeness for supported messaging types while reducing the overall quantity of signaling traffic over inter-technology interfaces by preventing transmission of unsupported messaging
Data Source
AI summary
Various embodiments are described to provide more efficient interworking in inter-technology networks. A first network node (121) provides access network service to remote units (101, e.g.) using a first access network technology, while a second network node provides access network service to remote units using a second and different access network technology. The first network node indicates to a networking device (122), what messaging associated with the second access network technology will be supported by a remote unit via the first network node. The networking device receiving this indication can then determine whether new messaging for the remote unit associated with the second access network technology and to be conveyed via the first network node, is supported. This networking device can then prevent the conveyance of the new messaging via the first network node.