Beam-Pattern Uplink Power Control for Consistent mmWave Interference
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Solution Overview
Problem
In mmW systems, existing power control mechanisms fail to adequately consider beamforming gains, leading to inconsistent interference levels among terminal devices due to varying beam patterns, which affects network performance and capacity.
Innovation Solution
The network device configures multiple sets of power control parameters based on candidate beam patterns, allowing terminal devices to select the appropriate set for uplink transmit power control, optimizing the tradeoff between receive power and interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing power control mechanisms are used in mmW systems, then path loss can be compensated, but beamforming gains are not adequately considered leading to inconsistent interference levels
Solution Approach 1:
The patent applies local quality by configuring different power control parameter sets tailored to specific beam patterns. Each terminal device receives customized parameters (P0, alpha, path loss compensation factors) that match its particular beam characteristics, ensuring that power control is optimized locally for each device's beamforming configuration rather than using a one-size-fits-all approach. This resolves the contradiction by making interference levels consistent through localized parameter adaptation.
Solution Approach 2:
The patent implements parameter changes by dynamically adjusting power control parameters (P0, alpha, path loss compensation factors) based on beam pattern characteristics. The network device configures multiple sets of parameters and selects appropriate sets according to the terminal's beam pattern, thereby changing the system parameters to account for beamforming gains. This enables reliable link quality while maintaining consistent interference levels across different terminal devices.
2Ease of operation
If multiple sets of power control parameters are configured for different beam patterns, then interference consistency is improved, but system complexity increases
Solution Approach 1:
The patent applies segmentation by dividing the power control parameter space into multiple discrete sets, each corresponding to a specific beam pattern category. Instead of continuously adjusting parameters, the system segments terminals into different groups based on their beam characteristics and assigns predefined parameter sets to each group. This reduces the complexity of real-time parameter calculation while maintaining interference consistency through structured segmentation.
Solution Approach 2:
The patent implements universality by creating a framework where a finite number of parameter sets can serve multiple purposes across different terminal devices. The same set of predefined parameter configurations can be universally applied to any terminal device that matches the corresponding beam pattern category, eliminating the need for custom parameter derivation for each device and simplifying the overall system complexity.
Data Source
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AI summary
Embodiments of the present disclosure provide a communication method and device for uplink power control. The method comprises receiving a plurality of sets of power control parameters from a network device, each of the plurality of sets being associated with a corresponding one of a plurality of sets of candidate beam patterns for the terminal device. The method further comprises selecting, based on a beam pattern for the terminal device, one of the plurality of sets of power control parameters for uplink transmit power control, the beam pattern for the terminal device being included in the set of candidate beam pattern that is associated with the selected set of power control parameters.