Base Station Power Allocation for MU-MIMO Coverage Thresholds
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Solution Overview
Problem
In 5G mobile networks with multiple-user MIMO, the fixed power output of base stations diminishes coverage when increasing the number of layers, leading to reduced wireless signal strength per layer.
Innovation Solution
Dynamic power allocation to base stations based on the number of data streams, adjusting power levels to maintain or exceed a threshold, and using power amplifiers to enhance signal strength.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the base station increases the number of layers for multiple-user MIMO, then the capacity and data transmission capability improve, but the power output per layer decreases leading to reduced coverage
Solution Approach 1:
The patent applies dynamics by making the power allocation adaptive rather than fixed. The base station dynamically adjusts the power level allocated to each layer based on real-time channel conditions, user requirements, and network load. This allows the system to optimize between coverage and capacity by allocating more power to layers that need it most, resolving the contradiction between increased layer count and maintained coverage.
Solution Approach 2:
The patent changes the power allocation parameter from a static equal distribution to a dynamic variable distribution. By adjusting the power level parameter for each layer independently based on channel quality indicators and user demands, the system can maintain adequate coverage for critical users while allocating sufficient power to enable higher layer counts for capacity enhancement.
2Area of stationary object
If the base station transmits with higher power output, then the coverage area increases, but the power available per layer decreases when multiple layers are used
Solution Approach 1:
The patent applies local quality by assigning different power levels to different layers based on their specific requirements and channel conditions. Instead of uniform power distribution, each layer receives tailored power allocation that considers factors such as user distance, channel quality indicator, and data priority. This allows critical layers to receive higher power for coverage while other layers can operate at lower power levels.
Solution Approach 2:
The system dynamically changes the power parameter for each layer based on real-time conditions. The base station adjusts power allocation parameters according to channel quality indicators and user requirements, enabling the system to optimize the balance between overall coverage and per-layer power availability for multiple simultaneous data streams.
3Device complexity
If equal power is distributed across all layers, then the system complexity is reduced, but the coverage for each layer is substantially diminished
Solution Approach 1:
The patent implements feedback mechanisms where the base station continuously monitors channel quality indicators and user requirements, then uses this information to adjust power allocation. This feedback loop enables the system to automatically optimize power distribution without manual intervention, managing complexity through automated control while achieving better coverage outcomes.
Solution Approach 2:
The power allocation system operates autonomously by using built-in channel quality indicators and pre-configured algorithms to automatically determine optimal power levels for each layer. The base station self-adjusts power distribution based on real-time conditions without requiring external manual configuration, reducing operational complexity while improving coverage performance.
Data Source
AI summary
Aspects of the subject disclosure may include, for example, generating a multi-user (MU) multiple-input-multiple-output (MIMO) group including a first group of communication devices. The MU-MIMO group is associated with a base station. Further embodiments can include determining a first group data streams associated with the MU-MIMO group that is transmitted from the base station to the first group of communication devices, and determining a wireless signal associated with each data stream of the first group of data streams resulting in a first group wireless signals. Additional embodiments can include determining a power associated with each wireless signal of the first group of wireless signals is less than a power threshold resulting in a first determination, and increasing the power associated with each wireless signal of the first group of wireless signals based on the first determination resulting in a first group of amplified wireless signals. Other embodiments are disclosed.