Autonomous Mode for LTE-LAN Traffic Offloading
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Solution Overview
Problem
Current LTE-LAN systems face challenges in managing increasing traffic loads due to the need for core network involvement in local bearer management and mobility handling, which can lead to increased control signaling and user traffic on the operator's core network, especially in unlicensed spectrum environments.
Innovation Solution
The implementation of an autonomous mode for traffic offloading in LTE-LAN systems, which reduces core network involvement by enabling local radio access connectivity through internet protocols, allowing device-to-device radio bearers to be set up without core network management, and supporting EPS bearer connectivity within the local network with minimal core network control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If core network control is maintained for local bearer management and mobility handling, then network reliability and control are improved, but control signaling load and user traffic on the core network increase
Solution Approach 1:
The patent segments the network control functions by introducing autonomous mode indicators that enable local networks to independently manage bearers and mobility without core network involvement. This segmentation separates control functions into core-network-managed segments and autonomous local segments, reducing the quantity of control signaling to the core network while maintaining reliability through appropriate use of autonomous operation.
Solution Approach 2:
The patent implements self-service by enabling local networks to autonomously manage their own bearers and mobility through autonomous mode indicators. When autonomous mode is indicated, local networks can independently handle bearer management and mobility procedures without requiring core network control, thereby reducing control signaling load while maintaining local network reliability through self-managed operations.
2Quantity of substance
If autonomous mode is implemented for traffic offloading, then core network load is reduced, but device complexity increases due to multiple operation modes
Solution Approach 1:
The patent applies dynamics by enabling networks to dynamically switch between conventional and autonomous modes based on operational requirements. The autonomous mode indicator allows flexible transition between core-network-controlled operation and autonomous local operation, enabling traffic offloading when needed while maintaining core network control when reliability requires it, thus managing device complexity through adaptive mode selection rather than fixed complexity.
Solution Approach 2:
The patent implements local quality by allowing individual networks or cells to operate in autonomous mode while others remain under core network control. The autonomous mode indicator enables selective activation of autonomous operation in specific local networks, allowing traffic offloading in appropriate locations without requiring all devices to simultaneously manage multiple complex modes, thereby reducing overall device complexity.
3Productivity
If local area radio access connectivity is enabled with internet protocols, then traffic offloading capability is improved, but control signaling from core network is reduced which may impact coordination
Solution Approach 1:
The patent extracts control signaling from the core network by introducing autonomous mode indicators that enable local networks to independently manage traffic without core network involvement. When autonomous mode is indicated, local bearers are established and managed entirely within the local network, extracting the traffic offloading function from the core network control plane while maintaining productivity through autonomous local operation.
Data Source
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AI summary
In accordance with an example embodiment of the present invention, a method comprises configuring an autonomous mode for traffic offloading; and indicating the autonomous mode towards at least one terminal, wherein said autonomous mode supports local area radio access connectivity by internet protocols to reduce control from a core network. Related apparatus and computer program product are also described.