Paging Indication Signaling for DRX Power Saving in Terminals
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Solution Overview
Problem
Existing wireless communication systems face challenges in optimizing power saving for terminal devices, particularly in idle states, due to inefficient use of power saving signals and paging mechanisms, leading to unnecessary power consumption.
Innovation Solution
Implementing a power saving signal in the form of DCI format 2_6 to indicate whether terminal devices should monitor the PDCCH during DRX On Durations, using PS-RNTI scrambling and configuring search space sets to optimize power usage, and determining monitoring occasions based on paging frames and occasions to reduce unnecessary reception.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If terminal devices monitor PDCCH continuously during DRX On Duration to ensure reliable paging reception, then paging reliability is improved, but power consumption increases
Solution Approach 1:
The network device sends a power saving signal before the DRX On Duration to preliminarily indicate whether paging messages will be transmitted. The terminal device uses this advance information to decide whether to activate PDCCH monitoring, avoiding unnecessary power consumption while ensuring paging reliability when needed
Solution Approach 2:
The terminal device autonomously decides whether to monitor PDCCH during DRX On Duration based on the power saving signal indication. This self-service mechanism allows the terminal to independently optimize its power consumption without continuous network control, reducing unnecessary monitoring while maintaining reliable paging reception
2Reliability
If terminal devices monitor PDCCH during every DRX On Duration to ensure no paging messages are missed, then paging completeness is improved, but power efficiency deteriorates
Solution Approach 1:
The power saving signal is transmitted before the DRX On Duration to provide advance notice of paging message transmission. This preliminary action allows terminal devices to prepare appropriately, ensuring they monitor only when necessary to maintain paging completeness while improving power efficiency
Solution Approach 2:
The power saving signal changes the monitoring parameter state by indicating whether PDCCH monitoring should be activated. This parameter change allows terminal devices to dynamically adjust their monitoring behavior based on actual paging needs, optimizing the balance between paging completeness and power efficiency
3Use of energy by moving object
If power saving signals are transmitted frequently to provide accurate paging indications, then power saving effectiveness is improved, but signaling overhead increases
Solution Approach 1:
The power saving signal uses existing DCI formats (1_0 and 2_6) and scrambling mechanisms (P-RNTI and PS-RNTI) for multiple purposes. This multi-functionality allows the signal to provide paging indications while reusing existing physical layer structures, improving power saving effectiveness without significantly increasing signaling overhead
Solution Approach 2:
The power saving signal structure copies existing DCI formats and scrambling methods rather than creating entirely new signaling mechanisms. This copying approach allows efficient power saving indications to be transmitted using proven, optimized signal structures, reducing the overhead burden while maintaining effectiveness
Data Source
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AI summary
The present disclosure discloses a paging indication method. The method includes: receiving, by a terminal device, power saving indication information in a first search space set. The power saving indication information indicates whether the terminal device needs to receive a paging message in a target paging occasion group or a target paging frame group. The present disclosure further discloses another paging indication method, an electronic device, and a storage medium.