Dynamic Carrier Activation for 5G Base Station Energy Reduction
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Solution Overview
Problem
The increasing demand for energy efficiency in 5G and 6G wireless communication systems, particularly in reducing energy consumption of base stations while maintaining coverage and data transmission rates, is not adequately addressed by existing technologies due to high energy consumption associated with wide bandwidth and numerous transmission antennas.
Innovation Solution
A method involving an access carrier and a data carrier, where the access carrier provides initial access and essential information, and the data carrier is dynamically switched on or off based on terminal location and channel state information to optimize energy use, allowing for adaptive power adjustment and efficient frequency utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If data carriers are continuously activated to maintain coverage and data transmission, then communication service reliability is improved, but network energy consumption increases
Solution Approach 1:
The patent implements dynamic carrier activation by transitioning data carriers between active and dormant states based on real-time terminal location information and channel state information. The base station dynamically decides whether to activate data carriers for specific terminals, making the system adaptable to changing conditions while optimizing energy consumption.
Solution Approach 2:
The system employs periodic monitoring of terminal location and channel state, with data carriers being activated only during specific periods when needed. The base station periodically evaluates whether to activate data carriers based on current conditions, rather than maintaining continuous activation, thus reducing overall energy consumption while maintaining service reliability when required.
2Speed
If wide bandwidth and numerous transmission antennas are used to increase data transmission rates, then transmission speed is improved, but energy consumption increases
Solution Approach 1:
The patent applies local quality by selectively activating data carriers only for specific terminals that require high-speed data transmission. Instead of uniformly activating all data carriers across the network, the system tailors carrier activation to local needs based on terminal location and channel conditions, providing high transmission rates only where necessary while conserving energy elsewhere.
Solution Approach 2:
The system changes operational parameters by adjusting data carrier activation states based on terminal requirements. When a terminal needs high-speed transmission, the base station activates appropriate data carriers with suitable bandwidth and antenna configurations. When high-speed transmission is not needed, the system reduces activation levels, thereby adjusting energy consumption to match actual transmission requirements.
3Area of stationary object
If data carriers are activated to provide comprehensive coverage, then coverage area is improved, but energy expenditure increases
Solution Approach 1:
The system performs preliminary assessment of terminal location information and channel state information before activating data carriers. The base station evaluates whether activation is necessary based on predicted terminal positions and channel conditions, activating data carriers only in advance when actually needed for coverage, rather than maintaining continuous activation across all areas.
Data Source
AI summary
The disclosure relates to a fifth generation (5G) or sixth generation (6G) communication system for supporting high data transmission rates. Specifically, the disclosure proposes a method and a device for obtaining location related information for a terminal; identifying whether to switch on or switch off a data carrier for network energy saving based on the location related information; and transmitting, to a base station supporting the data carrier, a message including identification information for the terminal and coverage information for the data carrier, based on the identification.