NR Cell Transmission State Switching to Reduce Base Station Energy Use
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
NR base stations face significant energy consumption issues due to high bandwidth and frequency operations, increased antenna units, and the need to transmit common signals even during low traffic periods, leading to inefficient energy use and increased costs for operators.
Innovation Solution
Implementing a scheme where NR cells can dynamically switch between energy-saving states by adjusting transmission and reception of synchronization signals and other downlink signals based on traffic conditions, allowing terminals to remain connected without frequent cell reselection, thereby reducing energy consumption and load on neighboring cells.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If NR base station operates at high bandwidth and frequency with increased antenna units, then signal transmission capability is improved, but energy consumption increases significantly
Solution Approach 1:
The patent applies dynamics by making the base station's operational state adjustable between different modes (energy-saving state and normal state). The base station can dynamically switch between these states based on traffic conditions, allowing the system to adapt its resource allocation and signal transmission capabilities to match actual demand, thereby reducing energy consumption during low-traffic periods while maintaining service quality when needed.
Solution Approach 2:
The patent employs parameter changes by modifying key operational parameters such as bandwidth, number of antenna units, and transmission power based on traffic conditions. When transitioning to an energy-saving state, the base station reduces these parameters to lower energy consumption. The network can adjust these parameters dynamically, changing the base station's operational characteristics to optimize the balance between transmission capability and energy usage.
2Reliability
If NR base station transmits common signals continuously, then network coverage and synchronization are maintained, but energy consumption increases during low traffic periods
Solution Approach 1:
The patent applies periodic action by implementing discontinuous transmission of common signals. Instead of continuous transmission, the base station transmits synchronization signals and other common signals at periodic intervals or during specific time windows. This allows the network to maintain coverage and synchronization capabilities while significantly reducing energy consumption during periods when full continuous transmission is not required.
Solution Approach 2:
The patent uses dynamics to make the transmission of common signals adjustable and adaptive. The base station can dynamically switch between different transmission states based on network conditions and traffic demand. During low-traffic periods, the transmission of common signals is reduced or suspended, while during high-traffic periods, full transmission capability is restored, allowing the system to balance reliability and energy consumption.
3Use of energy by moving object
If cell deactivation is implemented for energy saving, then energy consumption is reduced, but user experience deteriorates due to frequent cell reselection
Solution Approach 1:
The patent applies dynamics by implementing a flexible, adjustable energy-saving mode rather than complete cell deactivation. The base station can dynamically adjust its operational parameters and transition between different states based on traffic conditions and user presence. This dynamic approach allows the system to reduce energy consumption while maintaining continuous service availability, preventing the need for users to perform frequent cell reselection and thus preserving user experience.
Solution Approach 2:
The patent employs preliminary action by maintaining basic operational capabilities and signal transmissions in advance, even during energy-saving states. The base station keeps essential functions active and prepares to quickly transition to full operational mode when traffic increases or users are detected. This preliminary maintenance of capabilities ensures that users experience minimal disruption and do not need to frequently reselect cells, as the base station remains partially active and ready to serve.
Data Source
AI summary
An information processing apparatus, applicable to a terminal equipment, includes: a receiver configured to receive indication information for indicating a first state and a second state of a cell related to downlink transmission; and processor circuitry configured to receive information from the cell according to the indication information, the cell being a cell where the terminal equipment is camped or a cell to which the terminal equipment is connected.