Wireless Terminal Power Preference Signaling for Dynamic RRC Modes
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Solution Overview
Problem
Existing wireless communication systems face inefficiencies in managing power consumption when terminals switch between connected and idle modes, leading to unnecessary power consumption and resource wastage.
Innovation Solution
A method and device that allow terminals to transmit power preference information to base stations, indicating preferred modes such as idle, inactive, or connected, and utilize a connection release request message with a prohibition timer to optimize power management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If terminals remain in connected mode to maintain communication readiness, then communication responsiveness is improved, but power consumption increases
Solution Approach 1:
The terminal dynamically selects between connected mode and idle mode based on communication requirements and power status. The system transitions from static mode assignment to dynamic mode selection, allowing the terminal to adapt its operational state to current needs, thereby resolving the contradiction between maintaining communication readiness and reducing power consumption.
Solution Approach 2:
The terminal changes its operational parameter (communication mode) based on power preference information. By introducing mode preference indication as a controllable parameter, the system allows terminals to shift between connected mode (high responsiveness, high power) and idle mode (low responsiveness, low power), effectively managing the trade-off between communication speed and energy consumption.
2Use of energy by moving object
If terminals frequently switch between connected and idle modes to save power, then power consumption is reduced, but communication delay increases
Solution Approach 1:
The terminal performs preliminary assessment of communication needs and power status before mode switching. By evaluating whether communication is imminent or ongoing before transitioning to idle mode, the system avoids premature switches that would cause delay, thus resolving the contradiction between power savings and communication responsiveness.
Solution Approach 2:
The base station provides feedback regarding communication status and requirements to the terminal. This feedback mechanism allows the terminal to make informed mode switching decisions, ensuring that transitions to idle mode do not occur when communication is expected or required, thereby balancing power consumption with communication delay.
3Productivity
If terminals transmit mode preference information to base stations, then power management efficiency is improved, but signaling overhead increases
Solution Approach 1:
The mode preference information is extracted as a specific element within existing uplink signaling messages rather than being transmitted as separate dedicated signaling. By embedding the power preference indication in already-necessary uplink communications, the system achieves power management efficiency without proportionally increasing total signaling overhead.
Data Source
AI summary
Provided are a method and device for providing power preference information in a wireless communication system. A terminal according to an embodiment of the disclosure may identify the necessity for transition from a radio resource control (RRC) connected mode and transmit, to a base station, a connection release request message including state information preferred by the terminal. In this case, the state information preferred by the terminal may include information indicating whether a state preferred by the terminal is an idle mode, an inactive mode, a connected mode, or a random mode, and the random mode may indicate that the terminal prefers to be released from the connection mode but there is no preferred mode among the idle mode and the inactive mode.