Beam-Specific NCR Power Control for Inter-Cell Interference
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Solution Overview
Problem
Existing wireless communication systems with network-controlled repeaters (NCRs) face challenges in managing interference due to improper power control, leading to increased inter-cell and cross-link interference, especially at cell edges where direct signals are weak.
Innovation Solution
Implement power control techniques for NCRs by receiving configurations and signaling from a base station to apply power offsets and adjustments based on beam, spatial direction, frequency, time duration, and channel associations, using semi-static and dynamic signaling to manage interference effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If NCRs transmit signals with high power to extend coverage, then coverage area is improved, but inter-cell interference increases
Solution Approach 1:
The patent applies different power levels to different spatial directions and beams. The NCR receives power control indications that specify different power offsets for different beams or spatial directions, allowing the NCR to transmit with higher power toward intended coverage areas and lower power toward directions that would cause interference to other cells.
Solution Approach 2:
The patent implements dynamic power control where the NCR adjusts transmission power in real-time based on network control. The base station sends power control indications dynamically, allowing the NCR to adapt its transmission power according to changing network conditions, interference levels, and coverage requirements.
2Device complexity
If NCRs use fixed transmission power, then device complexity is reduced, but interference management capability deteriorates
Solution Approach 1:
The NCR is equipped with the capability to autonomously adjust its transmission power based on received control indications. The power control mechanism allows the NCR to self-manage its power levels without requiring complex centralized control, reducing overall system complexity while maintaining effective interference management.
Solution Approach 2:
The patent changes the power parameter dynamically based on control indications. The NCR receives power offset values that modify its reference transmission power, allowing flexible adjustment of transmission parameters to balance coverage and interference without requiring complex device architecture.
3Device complexity
If NCRs apply uniform power offset across all beams, then device complexity is reduced, but interference management precision deteriorates
Solution Approach 1:
The patent segments the power control configuration by beam or spatial direction. Instead of applying a single uniform power offset, the NCR receives separate power control indications for different beams, allowing precise interference management for each directional transmission while maintaining manageable device complexity through structured configuration.
Data Source
AI summary
Various aspects of the present disclosure relate to an NCR that receives, from a base station, an indication of a power offset value or a power adjustment value associated with one or more beam indicators. The NCR receives a signal from the base station, and determines whether a beam indicator that is to be applied to forward the signal is included in the one or more beam indicators. The NCR, based on the beam indicator being included in the one or more beam indicators, transmits the signal to a user equipment with the power offset value applied to adjust a reference transmission power, or with the power adjustment value applied to adjust a previous transmission power.