Frequency Band Switching for 5G Terminal Power Reduction
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Solution Overview
Problem
The increasing demand for energy efficiency in 5G terminal devices due to high power consumption, particularly when 5G coverage is low, necessitates a method to reduce power consumption and enhance endurance capabilities.
Innovation Solution
A frequency band switching method that determines the need for switching based on transmission power information, performs beam scanning, and switches from a high-frequency 5G band to a low-frequency 4G band, improving uplink coverage and spectrum efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If 5G terminal selects 5G network when 5G coverage is low, then 5G service availability is improved, but power consumption increases and signal search frequency increases
Solution Approach 1:
The patent changes the operating parameter (frequency band) from 5G to 4G when certain conditions are met. The terminal device monitors transmission power and switches frequency bands dynamically, transforming from a fixed 5G-only mode to a flexible multi-mode operation that adapts to network conditions, thereby reducing power consumption while maintaining service availability.
Solution Approach 2:
The patent introduces dynamic frequency band switching capability. The terminal device can dynamically switch between 5G and 4G frequency bands based on real-time transmission power conditions and network availability. This dynamic adaptation allows the system to optimize between 5G service quality and power consumption requirements.
2Reliability
If transmission power is increased to improve uplink coverage in 5G band, then uplink coverage is improved, but power consumption increases
Solution Approach 1:
The patent changes the operating frequency band parameter from 5G to 4G when transmission power reaches maximum levels. This parameter change allows the terminal to maintain uplink coverage through better propagation characteristics of 4G bands while avoiding the excessive power consumption associated with high-power 5G transmissions.
Solution Approach 2:
The patent introduces 4G frequency band as an intermediary solution between 5G band and direct power increase. When 5G transmission power hits maximum and coverage is insufficient, the system transitions to 4G band as an intermediate alternative that provides adequate coverage with lower power requirements.
3Use of energy by moving object
If frequency band switching is implemented to reduce power consumption, then power consumption is reduced, but system complexity increases
Solution Approach 1:
The patent implements a feedback-based switching mechanism where the terminal device monitors its transmission power levels and network conditions, then feeds this information back to trigger appropriate frequency band switching. This feedback loop automates the decision-making process, reducing the need for complex manual control while enabling intelligent power management.
Data Source
AI summary
The present disclosure provides a frequency band switching method, an apparatus, a terminal device, a communication node and a computer-readable storage medium. The frequency band switching method comprises: determining a need for switching a frequency band of an uplink operation according to transmission power information of a terminal device when the uplink operation of the terminal device is performed in a first frequency band; performing, by the terminal device, a beam scanning for a second frequency band to switched to; and switching, by the terminal device, to the second frequency band according to a beam scanning result.