Inter-network Measurement for 5G Beam-pair Interference Coordination
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Solution Overview
Problem
Current inter-cell measurement solutions in LTE are inadequate for addressing inter-network interference in 5G wireless networks operating in high frequency bands, as they fail to differentiate specific sources of interference and cannot effectively coordinate interference between overlapping networks sharing spectrum.
Innovation Solution
A method and apparatus for inter-network measurement in 5G wireless networks, where a terminal device receives inter-network measurement configuration messages to perform measurements on inter-network interference, reporting beam-pair interference information to an access node for scheduling constraints, enabling interference coordination and mitigating inter-network interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If LTE inter-cell measurement solutions are used, then measurement capability is provided, but interference differentiation and coordination capability is insufficient for 5G high frequency bands
Solution Approach 1:
The patent changes the measurement parameters from traditional LTE cell-level measurements to 5G-specific beam-level measurements. By introducing beam ID, reference signal received power (RSRP), and signal to interference plus noise ratio (SINR) as measurement parameters, the system achieves precise differentiation of interference sources in high frequency bands while maintaining adaptability to 5G networks.
2Productivity
If multiple networks operate in overlapping areas, then spectrum utilization is improved, but inter-network interference increases
Solution Approach 1:
The patent implements a feedback mechanism where the terminal device measures inter-network interference levels and reports this information back to the network side. The network then uses this feedback to adjust scheduling decisions and beam directions, creating a closed-loop system that enables efficient spectrum sharing while mitigating harmful inter-network interference through continuous monitoring and adaptation.
Solution Approach 2:
The patent introduces dynamic beam management and scheduling adjustments based on real-time interference measurements. The system can dynamically switch between beams and adjust transmission parameters to avoid interfering networks, enabling flexible spectrum utilization that adapts to changing network conditions and maintains high productivity while reducing harmful interference.
3Strength
If beam-forming gain is used to mitigate link budget, then signal attenuation is reduced, but inter-network interference identification becomes more difficult
Solution Approach 1:
The patent segments the measurement process into multiple components: measuring the desired signal strength through beam-forming, separately measuring interference levels using reference signals, and calculating the signal to interference plus noise ratio. This segmentation allows the system to maintain high signal strength through beam-forming while independently identifying and measuring interference sources, making interference detection feasible even in high gain beam environments.
Data Source
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AI summary
Embodiments of the present disclosure provide a method for inter-network measurement at a terminal device in a wirelesses network. The method comprises receiving an inter-network measurement configuration message containing measurement configurations. The method further comprises performing an inter-network measurement based on the measurement configurations contained in the inter-network measurement configuration message, so as to obtain information on inter-network interference. The method further comprises reporting a measurement result of the inter-network measurement, wherein the measurement result includes the information on inter-network interference. In addition, there are also provided an apparatus for inter-network measurement at a terminal device in a wirelesses network and a method and apparatus for inter-network measurement at an access node in a wireless network. With the solution of the present disclosure, it is possible to obtain information on the inter-network interference, which could provide a prerequisite of coordination schemes and enable coordinated spectrum sharing work well in system operation.