Network node, base station, and communication method
The network node addresses inter-cell interference in MIMO beamforming by identifying and managing beam weights using RIC, improving reception quality and network performance.
WO2026140243A1PCT designated stage Publication Date: 2026-07-02NTT DOCOMO INC
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- NTT DOCOMO INC
- Filing Date
- 2024-12-27
- Publication Date
- 2026-07-02
AI Technical Summary
Technical Problem
MIMO beamforming in wireless communication systems experiences interference between adjacent cells due to extended propagation distances, leading to degraded reception quality.
Method used
A network node is provided with a receiving unit to identify interfering cells and determine beam weights to be avoided, and a transmitting unit to communicate these avoidance conditions to other base stations, utilizing RIC (RAN Intelligent Controller) to manage beam weights and reduce inter-cell interference.
Benefits of technology
The solution effectively reduces interference between cells in beamforming, enhancing reception quality and optimizing network performance.
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Smart Images
Figure JP2024046474_02072026_PF_FP_ABST
Abstract
This network node comprises: a reception unit that receives, from a first base station, a first message including information relating to a report relating to reception quality transmitted by a terminal to the first base station and a time at which the report was received by the first base station; a control unit that, on the basis of the report and the time, identifies a cell that interferes with a beam used by the first base station and a beam weight of the beam, and determines a beam weight the use of which is avoided in a cell of a second base station and a condition for canceling the avoidance; and a transmission unit that transmits, to the second base station, a second message including information relating to the beam weight the use of which is avoided and the condition for canceling the avoidance.
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