Coordinated Base Station Partitioning for Wireless Network Energy Conservation
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Solution Overview
Problem
Current wireless radio network energy-saving methods are inefficient due to uncoordinated and inflexible base station management, leading to excessive energy consumption, especially in urban environments where peak traffic demands do not consistently match network capacity.
Innovation Solution
Implementing a coordinated method to associate powered on and off base stations within definable partitions, adjusting based on load parameters, geographical information, and mobility characteristics to maintain the minimum number of active base stations necessary for current traffic demands, and re-arranging partitions to optimize energy conservation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If base stations are switched off individually based on local load information, then energy consumption is reduced, but coordination between base stations is lost and coverage gaps may occur
Solution Approach 1:
The patent merges individual base station energy management decisions into a coordinated network-wide strategy. The core network collects load information from multiple base stations and makes unified switching decisions, combining local actions into a cohesive system that maintains coverage continuity while reducing overall energy consumption.
Solution Approach 2:
The patent implements feedback mechanisms where base stations report their load conditions to the core network, and the core network adjusts base station switching decisions based on this feedback. This closed-loop system ensures that energy saving actions are coordinated to maintain reliable coverage.
2Reliability
If base stations are provisioned to handle peak hour traffic demands, then service quality during peak times is maintained, but energy is wasted during off-peak hours
Solution Approach 1:
The patent applies dynamic resource allocation where base station capacity is adjusted according to actual traffic conditions. During peak hours, more base stations remain active to handle high demand; during off-peak hours, fewer base stations are activated. This dynamic adaptation allows the network to match capacity with actual demand, eliminating energy waste while maintaining service quality when needed.
Solution Approach 2:
The patent changes operational parameters of base stations based on traffic conditions. The core network modifies parameters such as base station switching states, resource allocation levels, and capacity settings according to measured traffic patterns, enabling the network to optimize between service quality and energy consumption.
3Device complexity
If uncoordinated energy management is implemented at each base station, then implementation complexity is reduced, but network-wide optimization is lost and interference increases
Solution Approach 1:
The patent introduces the core network as an intermediary that coordinates energy management between base stations. Rather than base stations independently making decisions, the core network acts as a mediator that collects information, processes decisions, and coordinates actions across the network, achieving network-wide optimization while keeping individual base station implementation simple.
Data Source
AI summary
For allowing a particularly economic operation of a network with a high degree of energy conservation a method for operating a wireless radio network, especially a radio access network, is claimed, wherein the wireless radio network includes a core network, a number of base stations and at least one mobile host for wireless communication via at least one base station, wherein the method is characterized in that an association of powered on and powered off base stations within definable base station partitions will be arranged in a coordinated manner, thereby maintaining a minimum number or the smallest possible number of powered on base stations being necessary for accommodating a current traffic demand. Further, a network is claimed, preferably for carrying out the above mentioned method.