Wireless Backhaul Handover Configuration for Non-IAB Nodes
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Solution Overview
Problem
Current wireless backhaul communication systems face challenges in efficiently managing handovers of mobile relay nodes between infrastructure equipment, particularly in scenarios where target nodes do not support Integrated Access and Backhaul (IAB) functionality, leading to disruptions in network connectivity and increased network overhead.
Innovation Solution
The implementation of a method where infrastructure equipment transmits handover requests and receives acknowledgments to determine revised configuration information for communications devices and nodes, allowing seamless handover even when target nodes do not support IAB functionality, ensuring continuous connectivity and minimizing network disruptions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If handover requests include device configuration information for all communications devices, then handover completeness is improved, but network overhead increases
Solution Approach 1:
The patent extracts only the necessary configuration information for handover from the complete device configuration set. The source infrastructure equipment determines which configuration parameters are actually needed for the handover process and transmits only those specific parameters to the target infrastructure equipment, rather than transmitting all device configuration information.
Solution Approach 2:
The configuration information is segmented into essential handover parameters and non-essential parameters. Only the essential segment (configuration information needed for handover) is transmitted during the handover request, while non-essential segments are retained at the source equipment or transmitted through other channels.
2Reliability
If target nodes support IAB functionality, then wireless backhaul connectivity is improved, but device complexity increases
Solution Approach 1:
The handover mechanism is designed to be universal and work with both IAB-capable target nodes and non-IAB target nodes. The source infrastructure equipment adapts the handover request format and configuration information based on the target node's capabilities, allowing the same handover procedure to serve multiple types of target nodes without requiring every node to support IAB functionality.
Solution Approach 2:
The source infrastructure equipment acts as an intermediary that translates and adapts configuration information between IAB and non-IAB target nodes. It processes the handover request and determines the appropriate configuration format based on the target node type, shielding the complexity of IAB functionality from the communications devices.
3Manufacturing precision
If configuration information is transmitted during handover, then device reconfiguration accuracy is improved, but handover time increases
Solution Approach 1:
The source infrastructure equipment prepares and determines the necessary configuration information in advance during the handover decision phase. By pre-processing and identifying which configuration parameters are needed before the actual handover execution, the system reduces the time required during the critical handover transition while ensuring accurate configuration delivery.
Data Source
AI summary
An infrastructure equipment for providing a wireless interface to a communications node in a wireless communications network, the infrastructure equipment configured to support a wireless backhaul configuration for the communications node, wherein in the wireless backhaul configuration the communications node is configured to provide a wireless backhaul between one or more communications devices and the infrastructure equipment, the infrastructure equipment configured to: transmit one or more handover requests including first node configuration information for the communications node and first device configuration information for each of the one or more communications devices; receive one or more handover request acknowledgements; determine second device configuration information based on the one or more handover request acknowledgements; and transmit, to the first communications device, the second device configuration information for the first communications device.