Load-Adaptive Beam Sweeping for Lower Base Station Energy
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Solution Overview
Problem
The high energy consumption of base stations in conventional mobile communication systems due to fixed quantities of beams being used for sweeping, leading to excessive power consumption and energy overheads.
Innovation Solution
Adaptive configuration of sweeping beams based on current system load, reducing the number of beams and shutdown symbols, and aggregating idle resource block power to active beams to maintain coverage, while dynamically adjusting beam width and direction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If a fixed quantity of beams are used for sweeping to enhance coverage, then coverage area is improved, but energy consumption increases
Solution Approach 1:
The patent applies dynamics by making the beam quantity configurable and adjustable based on system load conditions. The base station dynamically determines the quantity of sweeping beams to be transmitted according to the current system load, rather than using a fixed quantity. This allows the system to adapt between full coverage mode (high beam quantity) and energy-saving mode (low beam quantity), resolving the contradiction between coverage area and energy consumption.
Solution Approach 2:
The patent changes the parameter of beam quantity from a fixed value to a dynamically adjustable parameter based on system load. By configuring different quantities of sweeping beams according to system load conditions, the system can optimize the balance between coverage area and energy consumption. When system load is low, fewer beams are transmitted to save energy; when system load is high, more beams are transmitted to ensure coverage.
2Reliability
If multiple symbols are always in power consumption state for beam sweeping, then beam coverage is enhanced, but energy overheads increase
Solution Approach 1:
The patent applies periodic action by configuring beam sweeping to occur only in specific symbols rather than continuously in all symbols. The base station determines which symbols should be used for beam sweeping based on system load, creating a periodic pattern where beam sweeping alternates with non-sweeping symbols. This reduces the total number of symbols in power consumption state while maintaining coverage reliability during active sweeping periods.
Solution Approach 2:
The patent applies partial action by transmitting only the necessary number of beams during sweeping symbols rather than continuously transmitting all beams in all symbols. When system load is low, the system uses fewer symbols for beam sweeping and reduces beam quantity, performing only the partial action needed to maintain minimum coverage. This reduces energy overheads while preserving essential coverage functionality.
3Length of stationary object
If a fixed quantity of beams are used for sweeping, then coverage distance is maintained, but power consumption increases
Solution Approach 1:
The patent applies dynamics by making the beam quantity a dynamic parameter that adjusts based on system load conditions. Instead of using a fixed quantity of beams that maintains coverage distance at all times, the system dynamically configures beam quantity according to current system load. This allows the system to maintain coverage distance when needed (high system load) while reducing power consumption when coverage requirements are lower (low system load).
Data Source
AI summary
This application provides a communication method, applied to beam sweeping. The method includes: obtaining system load of a cell at a current moment; configuring a quantity of sweeping beams in a sweeping periodicity based on the system load at the current moment; and configuring a quantity of shutdown symbols based on the quantity of sweeping beams. This application further provides a communication apparatus, a communication device, and a computer-readable storage medium, to resolve a technical problem in a conventional technology that a plurality of symbols are always in a power consumption state and energy overheads are high because a fixed quantity of beams are used for sweeping to enhance coverage, so that a base station saves more energy.