Wireless Node PDCCH Monitoring for Energy-Saving Data Reception
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently configuring and receiving data channels while reducing energy consumption at base stations, leading to inconsistent resource utilization and potential interference with broadcast and system messages.
Innovation Solution
A method involving flexible signaling for determining resource element pools and dynamic control channel configurations, allowing for optimized data channel transmission without affecting reception performance, even in energy-saving modes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by stationary object
If broadcast signaling and system messages transmission frequency is reduced to save base station energy, then energy consumption is reduced, but data channel rate matching and reception performance are affected
Solution Approach 1:
The patent implements dynamic adjustment of PDCCH monitoring behavior based on received signaling. The UE can dynamically switch between different PDCCH monitoring patterns (first and second patterns) depending on whether broadcast signaling is transmitted, allowing the system to adapt to changing energy-saving states while maintaining reliable data channel reception through appropriate rate matching.
Solution Approach 2:
The patent changes the PDCCH monitoring parameters dynamically by selecting between different monitoring patterns. When energy-saving mode is activated and broadcast signaling is reduced, the system changes the monitoring pattern parameters to match the reduced signaling frequency, ensuring that data channels are properly rate-matched to available resources without conflicting with broadcast transmissions.
2Adaptability or versatility
If dynamic signaling is used to enable/disable broadcast and system messages for flexible energy saving, then energy saving flexibility is improved, but resource allocation consistency and data channel configuration become complex
Solution Approach 1:
The patent segments the PDCCH monitoring behavior into distinct patterns (first and second patterns) that can be independently selected. This segmentation allows the system to handle different energy-saving scenarios through predefined monitoring patterns, reducing the complexity of dynamically configuring data channels while maintaining flexibility in energy-saving operations.
Solution Approach 2:
The patent prepares multiple PDCCH monitoring patterns in advance (first and second patterns) before energy-saving mode activation. When energy-saving mode is triggered, the system simply switches between pre-configured patterns rather than dynamically creating new configurations, which simplifies the control signaling and reduces configuration complexity while maintaining adaptability.
Data Source
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AI summary
The present application discloses a method and device used in a node for wireless communication. A node first receives first signaling, the first signaling being used for determining a first RE pool;then receives target signaling, the target signaling being used for triggering or canceling PDCCH detection in at least one PDCCH monitoring moment; and receives first DCI and a first channel, wherein the first DCI is used for scheduling the first channel, the first signaling comprises at least one of configuration signaling of at least one search space set or a rate matching scheme, the target signaling is L1/L2 signaling, whether the first channel occupies the target RE set depends on the target signaling, and the target RE set comprises REs of the first RE pool in one of the at least one PDCCH monitoring moment. The present application improves the confirmation of resources occupied by scheduling data in an energy saving scenario, thereby improving the overall performance of a system.