Multi-Carrier Power Sharing in GSM Base Stations
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Solution Overview
Problem
Existing GSM network base stations with single-carrier transceivers face inefficiencies and reduced coverage due to high peak-to-average ratio of signals as carrier count increases, leading to compromised system capacity and increased costs when trying to enhance output power.
Innovation Solution
Implementing a method for dynamic adjustment of multi-carrier power distribution by a base station controller based on signal strength, allowing for increased output power for low-strength signals and reduced output power for high-strength signals without hardware changes, thereby optimizing power usage and coverage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple single-carrier transceivers are combined to support large-capacity sites, then system capacity is improved, but device complexity and cost increase significantly
Solution Approach 1:
The patent merges multiple carrier signals into a single multi-carrier transceiver system. By combining multiple carriers (e.g., 4 carriers) into one transceiver unit, the system achieves large-capacity site support without requiring multiple separate transceivers, thereby reducing device complexity and cost while maintaining high system capacity.
Solution Approach 2:
The multi-carrier transceiver is designed to perform multiple functions simultaneously - it can handle multiple carriers, support both voice and data services, and adapt to different traffic conditions. This universal design eliminates the need for separate dedicated transceivers for different services, reducing overall system complexity.
2Area of stationary object
If output power is increased using Power Booster Technology to increase coverage, then coverage area is improved, but system capacity is compromised
Solution Approach 1:
The patent implements dynamic power allocation across multiple carriers based on real-time traffic conditions and user distribution. Instead of uniformly boosting power across all carriers (which reduces capacity), the system dynamically adjusts power distribution - allocating more power to carriers with fewer users and less power to carriers with more users, thereby maintaining both coverage area and system capacity.
Solution Approach 2:
Different carriers are allocated different power levels according to local conditions - carriers serving specific geographic areas or user groups receive power levels optimized for their local requirements. This local quality approach ensures adequate coverage in all areas while preventing unnecessary power consumption that would reduce overall system capacity.
3Productivity
If the number of GSM carriers is increased to support more users, then system capacity is improved, but peak-to-average ratio increases causing output power per carrier to fall
Solution Approach 1:
The system changes the power parameter dynamically based on carrier utilization and traffic conditions. When the number of carriers increases, the total power is redistributed among carriers according to their actual usage - active carriers receive appropriate power levels while idle or lightly-loaded carriers receive reduced power, thereby maintaining output power per carrier despite increased carrier count.
Solution Approach 2:
Instead of allocating full power to every carrier simultaneously (excessive action), the system applies partial power allocation - each carrier receives only the power level actually needed for its current traffic load. This prevents power waste and maintains adequate output power per carrier even when many carriers are available, thereby supporting high system capacity without power degradation.
Data Source
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AI summary
The present invention discloses a method and device for sharing multi-carrier power. The method includes: generating an output power adjustment indication according to a measurement distance or coupling loss between a user equipment and a base station, or power strength of a valid signal received by the user equipment from the base station; and instructing the base station to share and distribute the multi-carrier output power according to the output power adjustment indication by sending the output power adjustment indication to the base station,. With the present invention, the carrier output power is adjusted dynamically without changes in main hardware under control of the scheduling of the base station controller according to the distance or coupling loss between the user equipment and the base station or the strength of a valid signal received by the user equipment from the base station. The carrier output power is thus increased to the effect of coverage enhancement and cost reduction.