Inter-device Coordination for High-Frequency Beam Interference
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Solution Overview
Problem
Conventional inter-cell interference coordination technologies are inadequate for high-frequency cells, as they cannot effectively manage interference between adjacent cells due to the dynamic nature of beamforming, which leads to reduced spectrum utilization efficiency.
Innovation Solution
An inter-device coordination method that involves a first device sending a beam to a target terminal, receiving notification of interference from a second device's beam, and performing transmission coordination to reduce interference, without statically configuring edge-users to use inter-frequency resources, allowing for dynamic adjustment of resource use on the interfering beam.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If beamforming technology is used to enhance coverage in high-frequency cells, then coverage enhancement is achieved, but inter-cell interference coordination becomes ineffective because transmit beams dynamically trace target terminals across cell boundaries
Solution Approach 1:
The patent implements dynamic beam coordination where the second device adjusts its beam parameters (direction, gain, or resource allocation) in response to real-time interference conditions. The coordination message triggers dynamic modification of beamforming weights or beam directions to avoid interfering with the first device's service beam, making the system adaptive rather than static.
Solution Approach 2:
The patent establishes a feedback loop where the first device monitors interference from the second device's beam, sends a coordination message when interference is detected, and the second device responds by adjusting its beam parameters. This closed-loop feedback mechanism enables continuous optimization of beam configurations to maintain both coverage and interference coordination.
2Reliability
If inter-cell interference coordination is implemented by statically configuring edge-users to use inter-frequency resources, then interference between adjacent cells is avoided, but spectrum utilization efficiency decreases
Solution Approach 1:
The patent replaces static frequency allocation with dynamic beam-level coordination. Instead of permanently assigning edge-users to specific frequencies, the system dynamically adjusts beam parameters (direction, gain, or resource usage) based on real-time interference conditions, allowing flexible resource sharing while maintaining interference coordination.
Solution Approach 2:
The patent changes the coordination parameter from static frequency assignment to dynamic beam parameters (direction, gain, or resource allocation). The coordination message triggers modifications in beamforming weights, beam directions, or time-frequency resource usage of specific beams, enabling flexible adaptation without rigid frequency constraints.
3Object-affected harmful factors
If the second device reduces power of the interfering beam to eliminate interference, then interference is reduced, but the ability to serve other terminals deteriorates
Solution Approach 1:
The patent applies local quality by directing the beam's energy spatially toward the interfering terminal while maintaining or reducing power in directions where other terminals are served. The beamforming weights are adjusted to create directional nulls or reduce gain only in the specific direction causing interference, preserving service quality to other terminals in different directions.
Solution Approach 2:
The patent segments the beamforming control by device and direction. The coordination mechanism allows the second device to independently adjust parameters of the specific beam causing interference (first beam towards first terminal) while maintaining separate control over beams serving other terminals. This segmentation enables selective interference management without affecting overall service capability.
Data Source
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AI summary
Embodiments of the present invention disclose an inter-device coordination method, to coordinate interference between high-frequency cells. The method in the embodiments of the present invention includes: sending, by a first device, a first beam to a target terminal; sending, by a second device, a second beam to the target terminal; measuring, by the target terminal, the received first beam and second beam; and if a first measurement quantity and a second measurement quantity meet a preset condition, sending, by the target terminal, a notification message to the first device, to instruct the first device to perform transmission coordination with the second device, so that the second device adjusts the second beam to reduce interference from the second beam to the first beam. The embodiments of the present invention further provide a related beam training method, and a related apparatus, device, terminal, and system.