PDCCH Monitoring Control via DCI for DRX Power Saving
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Solution Overview
Problem
The flexibility of physical downlink control channel (PDCCH) monitoring in 5G New Radio (NR) systems is poor, leading to inefficient power consumption and limited adaptability in terminal states.
Innovation Solution
A DCI transmission method that includes first indication information to dynamically control PDCCH monitoring, allowing terminals to skip, continue, or stop monitoring for specific durations, enhancing flexibility and reducing power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the terminal performs pre-configured PDCCH detection, then the detection is implemented, but the flexibility in PDCCH monitoring is poor
Solution Approach 1:
The patent introduces dynamic PDCCH monitoring control through DCI signaling that can adaptively adjust monitoring behavior based on network conditions. The monitoring status field in DCI enables the terminal to dynamically transition between different monitoring states (continue monitoring, skip monitoring, or stop monitoring) rather than following fixed pre-configured patterns, thereby improving flexibility without requiring complex reconfiguration procedures.
Solution Approach 2:
The patent changes the monitoring parameter state through DCI signaling by introducing a monitoring status field that can take multiple values (first, second, and third states). This allows the terminal to adjust its PDCCH monitoring behavior by changing the monitoring status parameter dynamically, enabling flexible adaptation to different network conditions without complex configuration changes.
2Use of energy by moving object
If the terminal continuously monitors PDCCH, then communication reliability is maintained, but power consumption increases
Solution Approach 1:
The patent implements periodic PDCCH monitoring through DRX mechanisms combined with dynamic DCI control. The terminal can enter sleep periods between monitoring opportunities, reducing power consumption while maintaining communication reliability through selective monitoring. The network can control the periodicity and duration of monitoring through DCI signaling, allowing the terminal to balance between energy saving and reliability based on actual communication needs.
Solution Approach 2:
The patent enables the terminal to autonomously adjust its monitoring behavior based on DCI instructions without requiring complex network coordination. The terminal independently processes the monitoring status field in DCI and automatically transitions to the appropriate monitoring state, making the power management self-service oriented while maintaining reliable communication through network-controlled scheduling.
Data Source
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AI summary
The embodiments of the present disclosure provide a DCI transmission method, a terminal, and a network side device. The method includes: receiving, by a terminal, a first DCI sent by a network side device, wherein the first DCI includes first indication information, and the first indication information is used to indicate the terminal not to perform physical downlink control channel (PDCCH) monitoring for subsequent N monitoring opportunities, or used to indicate the terminal to perform the PDCCH monitoring at a next monitoring opportunity, or used to indicate the terminal to stop the PDCCH monitoring at least within a current Discontinuous Reception (DRX) on duration, wherein N is an integer greater than or equal to 1; and if the first DCI is decoded successfully, responding, by the terminal, to the first indication information.