Base Station Energy Saving Compensation via Coverage Expansion
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Solution Overview
Problem
Existing LTE energy-saving solutions lack a mechanism to compensate for service losses in energy-saving cells, leading to resource wastage and inadequate coverage due to inflexible application in different scenarios.
Innovation Solution
A method and base station that expand or reduce signal coverage areas to form new cells, allowing energy-saving cells to switch users and activate/deactivate energy-saving states, ensuring continuous service and coverage through omni-directional or directional expansion strategies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by stationary object
If energy-saving cells disable transceivers during low-service hours, then energy consumption is reduced, but service coverage and quality deteriorate
Solution Approach 1:
The patent introduces a compensation cell as an intermediary that activates when an energy-saving cell disables its transceiver. This compensation cell provides alternative service coverage to users who would otherwise be served by the energy-saving cell, thereby maintaining service reliability while allowing energy savings. The compensation cell acts as a mediator that bridges the gap between energy conservation and service continuity.
Solution Approach 2:
The system performs preliminary actions by pre-configuring compensation cells that can quickly activate when needed. The compensation mechanism is prepared in advance, with cells designated for compensation purposes and pre-established user switching relationships. When an energy-saving cell needs to disable its transceiver, the compensation is already in place to immediately take over, avoiding service interruption.
2Reliability
If a basic base station with large coverage area is deployed to compensate energy-saving cells, then service continuity is maintained, but resource wastage occurs due to oversized coverage
Solution Approach 1:
The patent applies local quality by having compensation cells provide coverage only in specific local areas where energy-saving cells are disabled, rather than using a single large-coverage base station for the entire region. Each compensation cell is strategically positioned to cover only the necessary area, providing targeted compensation without creating unnecessary coverage in other regions, thus avoiding resource wastage.
Solution Approach 2:
The compensation mechanism is segmented into multiple independent compensation cells rather than relying on a single large base station. This segmentation allows each compensation cell to be optimized for its specific local area, providing coverage only where needed. The segmented approach enables more efficient resource utilization compared to a monolithic large-coverage solution.
3Use of energy by stationary object
If energy-saving cells switch users to new cells during low-load periods, then energy efficiency is improved, but device complexity increases due to user management
Solution Approach 1:
The system implements self-service by enabling user equipment to automatically switch between cells based on pre-configured relationships and current cell states. The user management complexity is reduced because the switching decisions are made autonomously by the user equipment following established rules, rather than requiring complex centralized control for each switching decision. The network provides the switching framework, but individual devices manage their own cell switching.
Data Source
AI summary
The present invention relates to the technical field of wireless communications, is used for optimizing an energy saving mechanism, and provides a method for energy saving compensation, which method comprises: expanding, by a base station, a signal coverage area to form a new cell, when the energy saving activation requirements are met, so as to allow an energy-saving cell managed by the base station to switch users to the new cell and to activate the energy saving state; and when energy saving deactivation requirements are met, and if the energy-saving cell managed by the base station deactivates the energy saving state, then switching, by the base station, the users to the energy-saving cell and reducing the signal coverage area. The present invention optimizes currently available energy saving mechanisms and provides a solution capable of compensating the service loss of energy-saving cells.