Wireless Terminal Energy Saving via Discontinuous Transmission
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Solution Overview
Problem
As 5G mobile communication systems are commercialized, there is a need for effective energy-saving methods to manage the exponentially increasing number of connected devices and support advanced services like augmented reality, virtual reality, and metaverse services.
Innovation Solution
The proposed solution involves a method and apparatus for energy saving in a wireless communication system, where a terminal receives configuration information for a network energy saving mode from a base station, identifies when the mode is applied, and adjusts its uplink transmission power or quasi co-location (QCL) relations based on reference signals to optimize energy efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If continuous transmission and reception is maintained to ensure reliable communication, then communication reliability is improved, but energy consumption increases
Solution Approach 1:
The patent implements discontinuous transmission and reception by periodically activating communication functions only when data needs to be transmitted or received. The terminal device switches between active communication states and sleep states based on data availability, thereby reducing energy consumption while maintaining communication reliability when needed.
2Use of energy by moving object
If discontinuous transmission and reception is implemented to save energy, then energy efficiency is improved, but communication reliability may deteriorate
Solution Approach 1:
The patent employs feedback mechanisms where the terminal device monitors data buffer status and communication conditions, then adjusts its transmission and reception activities accordingly. This feedback-driven approach ensures that communication functions are activated only when necessary, maintaining reliability while optimizing energy efficiency.
Solution Approach 2:
The patent makes the communication system dynamic by allowing the terminal device to flexibly switch between active and sleep states based on real-time conditions. This dynamic adaptation enables the system to maintain reliability when communication is needed while achieving energy savings during idle periods.
Data Source
AI summary
The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. The disclosure may provide a method and an apparatus for saving power of a wireless communication system. According to the disclosure, a method performed by a terminal in a communication system is provided. The method includes: receiving, from a base station, configuration information on a network energy saving mode; identifying that the network energy saving mode is applied; identifying an uplink transmission power for transmitting an uplink signal on an uplink channel in the network energy saving mode or a quasi co-location (QCL) relation of at least one of downlink signal or a downlink channel based on a reference signal in the network energy saving mode; and transmitting, to the base station, the uplink signal on the uplink channel based on the uplink transmission power or receiving, from the base station, the downlink signal on a downlink channel based on the QCL relation.