Carrier Power Control Method for Base Station Coverage and Throughput
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Solution Overview
Problem
Base stations face reduced cell coverage and service throughput when limiting electromagnetic radiation by uniformly decreasing carrier transmit powers, which affects both common and traffic channels, leading to narrowed cell coverage and decreased capacity.
Innovation Solution
A carrier power control method that sets maximum transmit powers for common channels based on signal coverage and allocates sharable traffic powers to improve traffic throughput without reducing common channel powers, allowing dynamic adjustment of resource blocks and power spectrum density depending on terminal proximity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the transmit power of the carrier is decreased based on a uniform ratio to limit electromagnetic radiation, then the electromagnetic radiation of the base station satisfies a design requirement, but the cell coverage of the base station is narrowed and the cell service throughput is reduced
Solution Approach 1:
The patent segments the carrier power into two independent parts: common channel power and traffic channel power. The common channel power is maintained at its originally set value to preserve cell coverage, while only the traffic channel power is uniformly decreased to meet electromagnetic radiation requirements. This segmentation allows differential control of power components to resolve the contradiction between radiation limitation and coverage maintenance.
Solution Approach 2:
The patent applies local quality by treating different channel types with different power control strategies. Common channels (system information, synchronization, etc.) receive preferential treatment with their power maintained at original levels to ensure coverage, while traffic channels undergo uniform power reduction to satisfy radiation constraints. This localized differentiation of power control quality resolves the contradiction.
2Object-affected harmful factors
If the transmit power of the carrier is decreased based on a uniform ratio to limit electromagnetic radiation, then the electromagnetic radiation of the base station satisfies a design requirement, but the cell service throughput of the base station is reduced
Solution Approach 1:
The patent segments the carrier power into common channel power and traffic channel power. By applying uniform power reduction only to traffic channels while maintaining common channel power, it achieves electromagnetic radiation limitation while preserving the functional integrity of the cell. The segmentation allows throughput impact to be concentrated on traffic channels only, rather than affecting all channels uniformly.
Solution Approach 2:
The patent applies partial action by selectively reducing power only for traffic channels rather than all channels. This partial power reduction is sufficient to meet electromagnetic radiation requirements while minimizing the impact on overall cell service throughput. The common channels maintain full power to ensure basic cell functionality and coverage.
3Object-affected harmful factors
If the transmit power of the common channel of the carrier is decreased to limit electromagnetic radiation, then the electromagnetic radiation of the base station is reduced, but the coverage of a main lobe in a radiation beam of an antenna of the base station shrinks
Solution Approach 1:
The patent explicitly segments the carrier into common channel and traffic channel components. The common channel power is maintained at its originally set value and not subjected to uniform reduction, thereby preserving the coverage of the main lobe in the radiation beam. Only traffic channel power is reduced to meet radiation limits, thus resolving the contradiction between radiation reduction and coverage maintenance.
Solution Approach 2:
The patent applies local quality by providing differentiated power control to different channel types. Common channels, which are critical for coverage and basic cell functionality, maintain their original power levels and thus preserve main lobe coverage. Traffic channels undergo power reduction locally, achieving radiation limits without affecting the spatial coverage characteristics determined by common channels.
Data Source
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AI summary
This application discloses a carrier power control method, an apparatus, a storage medium and a computer program product, relating to the field of communication technologies. The method includes: setting a maximum transmit power of common channels of a plurality of carriers based on a signal coverage; setting a maximum transmit power of traffic channels of the plurality of carriers; and transmitting, for each scheduling period and based on the maximum transmit power of the common channels of the plurality of carriers, the maximum transmit power of the traffic channels of the plurality of carriers and a shared transmit power of the traffic channels of the plurality of carriers in the scheduling period, the plurality of carriers in the scheduling period, the shared transmit power of the traffic channels of the plurality of carriers in the scheduling period being obtained after setting a plurality of shared traffic powers of a scheduling period previous to the scheduling period for the traffic channels of the plurality of carriers. This application improves the traffic throughput of the traffic channels of the plurality of carriers by sharing, without narrowing the signal coverage, a plurality of shared powers with the traffic channels of the plurality of carriers.