Cell Site Power Conservation via Dynamic RF Control
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Solution Overview
Problem
Commercial wireless communications service providers face challenges in maintaining radio access service during power outages, as existing backup power systems may not provide sufficient duration and are costly to maintain, especially with increasing regulatory requirements for extended backup power capabilities.
Innovation Solution
Implementing power conservation features at cell sites, such as selective antenna tilting, RF output power control, bit rate adjustment, traffic transfer to other cell sites, and reallocation of communications between radios and logical slots, based on power source availability and environmental parameters, to extend backup power runtime and reduce costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If backup power capacity is increased to extend service duration during outages, then reliability is improved, but device complexity and cost increase
Solution Approach 1:
The patent applies dynamics by making the cell site's operational parameters adjustable in response to power availability conditions. The system dynamically modifies antenna tilt angles, transmit power levels, and traffic routing decisions based on real-time power status, allowing the same hardware to adapt its behavior rather than requiring increased power capacity.
Solution Approach 2:
The patent changes operational parameters (antenna tilt, transmit power, traffic load distribution) to match available power conditions. By modifying these parameters, the system extends service duration during outages without adding physical power capacity, resolving the contradiction between reliability and system complexity.
2Reliability
If backup power capacity is increased to meet regulatory requirements, then reliability is improved, but capital and operating expenses increase
Solution Approach 1:
The patent changes operational parameters (antenna tilt, transmit power, traffic load distribution) to match available power conditions. By modifying these parameters, the system extends service duration during outages without adding physical power capacity, resolving the contradiction between reliability and system complexity.
Solution Approach 2:
The patent applies partial action by implementing power conservation features that reduce power consumption to the extent necessary to meet regulatory requirements. The system selectively enables conservation measures (antenna tilting, power reduction, traffic transfer) rather than requiring full backup capacity, achieving compliance with reduced capital and operating expenses.
3Duration of action of moving object
If power conservation features are enabled to extend backup runtime, then duration of action is improved, but productivity decreases
Solution Approach 1:
The system dynamically adjusts operational parameters based on power availability, enabling power conservation features during outages while maintaining essential service. Antenna tilting, power reduction, and traffic transfer are applied selectively to extend backup runtime without completely shutting down service, balancing duration extension with maintained productivity.
Solution Approach 2:
The patent applies partial action by implementing power conservation features that reduce power consumption to the extent necessary to extend backup runtime. The system selectively enables conservation measures rather than completely reducing service, achieving extended duration while maintaining essential productivity through partial operation.
Data Source
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AI summary
Systems, apparatus, methods, and manufactures for conserving power in a communications system such as a communications service cell site. The methods include adjusting the RF coverage of the cell site antenna, selective control of the RF output transmit power, selective control of the communications bit rate, transfer of communications to other cell sites, adjustment of indicators such that mobile devices transfer communications to other cell sites, and reallocation of logical slots between radios in the cell site.