One-Step Paging Reception for Low-Power Idle User Equipment
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Solution Overview
Problem
Existing wireless communication systems face challenges in optimizing power consumption during idle and inactive states, particularly in paging reception, which is crucial for reducing battery drain in user equipment.
Innovation Solution
Implementing a one-step paging reception method for user equipment in certain sub-states, such as 'camped on any cell' state, where the device only monitors the physical downlink control channel (PDCCH) for paging messages, reducing the need for additional physical downlink shared channel (PDSCH) reception.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If user equipment monitors both PDCCH and PDSCH for paging messages in idle and inactive states, then paging reception reliability is improved, but power consumption increases
Solution Approach 1:
The patent segments the paging reception process into two distinct steps: first monitoring PDCCH for paging indication, and only if needed, monitoring PDSCH for actual paging messages. This segmentation allows the UE to reduce power consumption by skipping the second step when no paging is indicated, while maintaining reliability when paging is present.
Solution Approach 2:
The patent implements preliminary action by having the UE first check the PDCCH for paging indication before proceeding to monitor the PDSCH. This preliminary check acts as a filter that prevents unnecessary PDSCH monitoring, thereby reducing power consumption while ensuring that paging messages are still received when needed.
2Reliability
If user equipment implements two-step paging reception (monitoring both PDCCH and PDSCH), then paging message delivery is ensured, but device complexity increases
Solution Approach 1:
The patent applies dynamics by making the paging reception process adaptive rather than fixed. The UE dynamically adjusts its behavior based on the PDCCH indication: if paging is indicated, it proceeds to monitor PDSCH; if not indicated, it skips PDSCH monitoring. This dynamic approach maintains reliable paging delivery while reducing the effective complexity of always monitoring both channels.
Data Source
AI summary
Aspects of this disclosure are directed towards a baseband processor including memory coupled to one or more processors. The one or more processors are configured to monitor a paging physical downlink control channel (PDCCH) for a communication in response to operating in a camped on any cell state. A one-step paging reception is performed based on operating in the camped on any cell state. The one-step paging reception is performed by only processing a downlink control information (DCI) of the PDCCH at reception of the communication in response to being in the camped on any cell state. The communication is received according to the one-step paging reception.