Base Station Dynamic Resource Allocation for Energy Efficiency
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Solution Overview
Problem
Conventional cellular communications networks have low overall energy efficiency despite the use of energy-improved amplifier concepts like Doherty or Envelope Tracking amplifiers.
Innovation Solution
A method for a base station to dynamically allocate communications resources based on terminal properties, such as supported standards, frequency bands, data rate, distance, and energy supply, to optimize energy efficiency by selecting the most energy-efficient communication standards and frequency bands for each terminal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If conventional amplifier concepts (Doherty or Envelope Tracking) are used in base stations, then energy efficiency of transmitters is improved, but overall network energy efficiency remains low
Solution Approach 1:
The patent dynamically changes communication parameters (frequency band, communication standard, transmit power) based on terminal properties and channel conditions. The base station selects from multiple available parameters to optimize energy efficiency for each specific terminal scenario, rather than using fixed conventional amplifier operations.
Solution Approach 2:
The system implements dynamic resource allocation where the base station continuously adapts communication resources based on real-time terminal properties (distance, speed, battery status) and channel conditions. This dynamic adjustment allows the network to respond to changing conditions and optimize energy efficiency across different scenarios.
2Device complexity
If base station uses fixed communication resources for all terminals, then device complexity is reduced, but energy efficiency cannot be optimized for specific scenarios
Solution Approach 1:
The patent segments the network into multiple frequency bands and communication standards, allowing different resources to be allocated to different terminals based on their specific needs. This segmentation enables targeted energy optimization without requiring complex custom configurations for each terminal.
Solution Approach 2:
The base station pre-configures multiple communication resources (different frequency bands, standards, and power levels) that can be rapidly selected based on terminal properties. This preliminary preparation of multiple options allows quick adaptation to different scenarios without complex real-time computations.
3Area of stationary object
If base station allocates high power to all terminals, then coverage is improved, but power consumption increases
Solution Approach 1:
The patent applies different transmit power levels and frequency bands to different terminals based on their specific locations and channel conditions. Terminals closer to the base station receive lower power allocations, while distant terminals receive higher power only when necessary, optimizing the balance between coverage and energy consumption.
Data Source
Figure 1~2
Figure 3a~3b
AI summary
The invention relates to a method of operating a base station (100) of a cellular communications network, wherein said method comprises the following steps: - determining (200) properties of at least one terminal (10a, 10b) that is capable of communicating with said base station (100), wherein said properties characterize at least one of: the communications capabilities of said terminal (10a, 10b), at least one physical parameter of said terminal (10a, 10b), - allocating (210) one or more communications resources to said terminal (10a, 10b) depending on said properties of said terminal (10a, 10b).