BS-to-BS Interference Handling via Reference Signaling
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Solution Overview
Problem
5G wireless communication networks face challenges in managing BS-to-BS interference, particularly due to atmospheric conditions that cause radio signaling to travel long distances and interfere with other networks or parts of the same network, leading to inefficiencies in interference management.
Innovation Solution
A method is introduced where network nodes transmit and receive reference signaling to identify and manage BS-to-BS interference, allowing for adaptive operation changes such as timing adjustments, muting, and scheduling to mitigate interference, using processing and radio circuitry to determine and monitor interference presence.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If reference signaling is transmitted to manage BS-to-BS interference, then interference management capability is improved, but signaling overhead increases
Solution Approach 1:
The reference signaling is segmented into two distinct types: first reference signaling transmitted by victim nodes to indicate their interference status, and second reference signaling transmitted by aggressor nodes to provide interference characteristics. This segmentation allows each node type to transmit only the information relevant to its role, reducing overall signaling overhead while maintaining effective interference management capability.
Solution Approach 2:
The system implements feedback mechanisms where victim nodes transmit first reference signaling to aggressor nodes about the presence and characteristics of BS-to-BS interference. This feedback loop enables aggressor nodes to adjust their transmission parameters accordingly, improving interference management without requiring continuous complex signaling from both sides.
2Measurement precision
If multiple types of reference signaling are transmitted for comprehensive interference monitoring, then interference detection accuracy is improved, but device complexity increases
Solution Approach 1:
Different types of reference signaling are assigned to different node roles based on local quality requirements: victim nodes transmit first reference signaling with specific characteristics suitable for indicating interference presence, while aggressor nodes transmit second reference signaling with characteristics suitable for providing interference characteristics. This local quality approach ensures each node transmits only the appropriately formatted signaling for its role, simplifying device complexity while maintaining detection accuracy.
Data Source
AI summary
There is disclosed a method of operating a transmitting network node in a radio access network, the method comprising transmitting, based on determined presence of BS-to-BS interference, first reference signaling, the first reference signaling indicating that the transmitting network node is a victim node of the BS-to-BS interference. The disclosure also pertains to related devices and methods.