DCP-Triggered DRX Cycle Switching to Reduce Terminal Power
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Solution Overview
Problem
The current Discontinuous Reception (DRX) mechanism in wireless network communication results in excessive power consumption due to frequent monitoring of Downlink Control Information (DCI) for power saving (DCP), leading to inefficient power usage in terminals.
Innovation Solution
Implementing a method where terminals switch from DRX short cycle mode to DRX long cycle mode in response to a first indication in the Downlink Control Information (DCP) when a wake-up signal (WUS) is not detected, reducing unnecessary monitoring and power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the terminal continuously monitors the PDCCH during multiple slots without data transmission, then the terminal can detect downlink data in time, but the terminal power consumption increases seriously
Solution Approach 1:
The patent implements discontinuous reception (DRX) mechanism where the terminal alternates between active monitoring periods and sleep periods. During DRX short cycle mode, the terminal monitors PDCCH at regular intervals rather than continuously, reducing power consumption while maintaining data detection capability. The terminal can be triggered to wake up and monitor PDCCH when downlink data is available, thus balancing between power saving and timely data detection.
2Use of energy by moving object
If the terminal uses DRX mechanism to monitor PDCCH periodically, then the terminal power consumption is reduced, but the monitoring frequency of DCI for power saving becomes too frequent causing large power consumption
Solution Approach 1:
The patent introduces dynamic switching between DRX short cycle mode and DRX long cycle mode based on traffic conditions and power saving requirements. The terminal can adaptively adjust its monitoring frequency: using short cycle mode when data transmission is active to ensure timely detection, and switching to long cycle mode during extended idle periods to maximize power savings. This dynamic adaptation resolves the contradiction between frequent monitoring and power efficiency.
3Use of energy by moving object
If the terminal switches from DRX short cycle mode to DRX long cycle mode upon receiving DCP with first indication, then the power consumption is reduced, but the monitoring responsiveness may be decreased
Solution Approach 1:
The base station sends Downlink Control Information (DCI) for power saving (DCP) with a first indication before the terminal would naturally wake up in short cycle mode, prompting the terminal to switch to long cycle mode in advance. This preliminary action allows the terminal to extend its sleep period and reduce power consumption while the base station maintains the capability to trigger immediate monitoring if needed, thus balancing power savings with responsiveness.
Data Source
AI summary
Provided in the embodiments of the present disclosure is an information processing method which can be performed by terminal. The method can include receiving, in a Discontinuous Reception (DRX) short cycle mode, Downlink Control Information (DCI) for power saving (DCP), and switching from the DRX short cycle mode to a DRX long cycle mode in response to that the DCP includes a first indication. The receiving of the DCP including the first indication corresponds to that a wake up signal (WUS) corresponding to the DCP is not considered to be detected by the terminal.