Millimeter-Wave Beam Scheduling for Intercell Interference Control
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Solution Overview
Problem
Managing intercell interference in millimeter wave networks is crucial due to increasing mobile data demands, which existing technologies have not effectively addressed, particularly in small cell environments where path loss and blocking are significant.
Innovation Solution
A method involving beam activation based on selection probability of beam patterns, user scheduling, and transmission power allocation is employed to maximize throughput and minimize interference, utilizing a server to control base stations and optimize power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If beam patterns are activated to increase data throughput in millimeter wave networks, then throughput is improved, but intercell interference increases
Solution Approach 1:
The patent implements dynamic beam pattern selection and activation based on real-time network conditions. Base stations randomly select and activate beam patterns from a codebook, with activation probabilities adjusted according to interference levels and traffic demands. This dynamic approach allows the system to adapt beam configurations to changing channel conditions, maximizing throughput while managing interference through probabilistic activation rather than static assignments.
Solution Approach 2:
The patent changes physical parameters including beam pattern selection, transmission power levels, and activation probabilities to optimize system performance. By adjusting transmission power based on interference measurements and modifying beam pattern activation probabilities, the system dynamically balances throughput enhancement against interference mitigation, resolving the contradiction between these two objectives.
2Productivity
If transmission power is increased to improve data throughput, then throughput is improved, but interference value increases
Solution Approach 1:
The patent implements feedback mechanisms where base stations measure interference values and channel conditions, then adjust transmission power and beam activation probabilities accordingly. Users report channel quality indicators back to base stations, which use this feedback to dynamically modify power allocation and beam selection strategies, creating a closed-loop control system that balances throughput and interference.
Solution Approach 2:
The system dynamically changes transmission power parameters based on real-time interference measurements and traffic conditions. By adjusting power levels adaptively rather than using fixed high power, the system achieves high throughput when conditions permit while limiting interference when other cells are active, resolving the contradiction through parameter optimization.
3Productivity
If multiple base stations operate simultaneously to increase network capacity, then network capacity is improved, but power consumption increases
Solution Approach 1:
The patent implements partial activation of base stations and beam patterns based on traffic demands. Instead of keeping all base stations and all beam patterns continuously active, the system selectively activates only the necessary portions of the network infrastructure required to handle current traffic loads. This partial action approach maintains network capacity when needed while reducing power consumption during low-traffic periods.
Solution Approach 2:
The system dynamically adjusts the operational state of base stations and beam patterns according to real-time traffic conditions. Base stations can transition between active and dormant states, and beam patterns are activated or deactivated based on channel conditions and interference levels, allowing the network to scale capacity with demand while minimizing power consumption during low-utilization periods.
Data Source
AI summary
A method of managing intercell interference in a network and an apparatus for performing the method are disclosed. The method of managing intercell interference by a base station included in the network includes selecting a beam pattern from among a plurality of beam patterns for transmitting and receiving data between the base station and users included in the network, activating a beam corresponding to the selected beam pattern, performing a user's scheduling on users included in the activated beam, and allocating transmission power to the activated beam to transmit and receive data to and from the users selected by the user's scheduling.