TRP Control for Wireless Communication Energy Efficiency
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently controlling base stations, particularly in managing energy consumption and frequency usage effectively, especially as the number of connected devices increases.
Innovation Solution
The proposed solution involves a method and apparatus for controlling a base station in a wireless communication system. This includes a first transmission reception point (TRP) that transmits a signal with information on other TRPs operating in different frequency bands, allowing a terminal to select a preferred TRP. The system then instructs the selected TRP to switch to an active state and directs the terminal to perform a random access procedure with that TRP.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If base station components are continuously activated to maintain service availability, then system reliability is improved, but energy consumption increases
Solution Approach 1:
The base station operates in multiple dynamic states (full operation, partial operation, sleep mode) and can transition between them based on traffic conditions. The activation state of each component is dynamically adjusted rather than being fixed, allowing the system to balance reliability and energy consumption adaptively.
Solution Approach 2:
The system changes operational parameters such as activation state, transmission power, and component configuration to optimize performance. By adjusting these parameters based on traffic demand, the base station can maintain service availability when needed while reducing energy consumption during low-traffic periods.
2Device complexity
If all TRPs operate in the same frequency band for simplicity, then device complexity is reduced, but frequency usage efficiency decreases
Solution Approach 1:
The frequency spectrum is segmented into different bands, and different TRPs are assigned to operate in different frequency bands. This segmentation allows multiple TRPs to utilize different frequency resources simultaneously, increasing overall frequency usage efficiency while the centralized controller manages the complexity of frequency coordination.
Solution Approach 2:
A centralized controller acts as an intermediary that manages frequency allocation and TRP coordination. This intermediary handles the complexity of multi-frequency band management, allowing individual TRPs to operate relatively simply while the system as a whole achieves high frequency usage efficiency through coordinated resource allocation.
3Use of energy by moving object
If base station components are activated on demand to reduce energy consumption, then energy efficiency is improved, but service response time increases
Solution Approach 1:
The base station performs preliminary actions by transitioning to a standby state with essential components pre-configured and ready for quick activation. This preliminary preparation allows the system to reduce energy consumption during low-traffic periods while ensuring that critical components can be activated rapidly when service demand arises, minimizing response time penalty.
Data Source
AI summary
The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. According to various embodiments of the present disclosure, a method performed by a first transmission reception point (TRP) in a wireless communication system comprises the steps of: transmitting, to a terminal, a first signal including information about one or more TRPs operating in a frequency band differing from that of the first TRP; receiving, from the terminal, a random access preamble including information about at least one TRP that is preferred by the terminal and determined on the basis of the first signal; transmitting a signal instructing the second TRP to switch to a switch-on state if the first TRP determines the second TRP on the basis of the information about the at least one TRP; and transmitting a signal instructing the terminal to perform a random access procedure with the second TRP.