Slot-Level Search Space Dropping for Multi-Slot PDCCH Monitoring
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently managing search space overbooking for multi-slot physical downlink control channel monitoring, leading to resource allocation inefficiencies and potential interference.
Innovation Solution
Implementing a method and apparatus for dropping all search spaces in an identified slot based on overbooking conditions and monitoring or transmitting on the remaining search spaces to optimize resource utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If search spaces are distributed across multiple slots to improve resource utilization, then productivity is improved, but device complexity increases due to the need to manage overbooking conditions and dynamically drop search spaces
Solution Approach 1:
The patent segments search spaces into different slots and introduces overbooking conditions that allow selective dropping of search spaces in specific slots. This segmentation enables the system to distribute search spaces across multiple slots for improved resource utilization while providing a mechanism to manage complexity by dropping problematic search spaces based on predefined conditions.
Solution Approach 2:
The patent implements dynamic search space management where the UE can dynamically drop search spaces in identified slots based on overbooking conditions. This dynamic approach allows the system to adapt to varying resource availability and interference conditions, improving overall productivity while managing device complexity through conditional rules rather than static configurations.
2Reliability
If search spaces are monitored across multiple slots to improve communication performance, then reliability is improved, but object-generated harmful factors increase due to potential interference from overbooking
Solution Approach 1:
The patent applies preliminary anti-action by establishing overbooking conditions that anticipate and prevent interference before it occurs. The UE is configured with rules to identify slots where search space overbooking may cause interference, and proactively drops search spaces in those slots before transmission occurs, thereby preventing harmful interference while maintaining reliable communication in non-overbooked slots.
3Measurement precision
If all search spaces are monitored to improve measurement precision, then measurement precision is improved, but loss of energy increases due to continuous monitoring across multiple slots
Solution Approach 1:
The patent implements partial action by allowing the UE to monitor only a subset of search spaces based on overbooking conditions. Instead of monitoring all search spaces across all slots, the UE drops search spaces in identified slots where overbooking occurs, thereby reducing energy consumption while maintaining sufficient monitoring precision for reliable communication in the remaining search spaces.
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a configuration associated with a plurality of search spaces, wherein the plurality of search spaces are distributed across a plurality of slots. The UE may drop all search spaces of an identified slot based at least in part on one or more overbooking conditions. The UE may monitor a remainder of the plurality of search spaces other than the dropped search spaces. Numerous other aspects are described.