Adaptive Control Channel Aggregation Restriction for Wireless UE
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Solution Overview
Problem
Current wireless communication systems, particularly in new radio (NR) and LTE technologies, face challenges in efficiently managing blind decoding operations, leading to increased power consumption and resource usage due to the need to monitor all decoding candidates in control channels, which is inefficient especially in poor channel conditions.
Innovation Solution
Implementing a method where a base station selects and transmits a subset of decoding candidates based on their aggregation levels, allowing user equipment to monitor and decode only those candidates exceeding a specified threshold, thereby reducing unnecessary processing and power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If all decoding candidates are monitored in control channels, then control information reliability is improved, but power consumption and resource usage increase
Solution Approach 1:
The patent segments the set of decoding candidates into multiple subsets based on aggregation levels. The UE is configured to monitor only specific subsets of candidates rather than all candidates, thereby reducing power consumption while maintaining reliable control information reception through the segmented monitoring approach
Solution Approach 2:
The patent applies partial action by having the UE monitor only a subset of decoding candidates rather than all candidates. By configuring the UE to monitor candidates with specific aggregation levels (e.g., only higher aggregation levels), the system achieves sufficient control information reliability with reduced processing and power consumption
2Reliability
If all decoding candidates are monitored in control channels, then control information reliability is improved, but resource usage increases
Solution Approach 1:
The patent segments decoding candidates into subsets based on aggregation levels and configures the UE to monitor specific subsets. This segmentation improves resource usage efficiency by avoiding unnecessary processing of all candidates while maintaining control information reliability through targeted monitoring of relevant subsets
Solution Approach 2:
The patent changes the monitoring parameter by configuring the UE to monitor candidates with specific aggregation level thresholds. By adjusting which aggregation levels are monitored based on channel conditions and UE capabilities, the system optimizes resource usage while preserving control information reliability
3Reliability
If decoding candidates with low aggregation levels are monitored, then decoding success in good channel conditions is improved, but power consumption increases
Solution Approach 1:
The patent implements dynamic monitoring by configuring the UE to adaptively monitor decoding candidates based on aggregation level thresholds. The network can dynamically adjust which aggregation levels are monitored according to channel conditions, allowing the UE to focus processing on relevant candidates and reduce power consumption while maintaining decoding success rate
Solution Approach 2:
The patent changes the monitoring parameter by setting aggregation level thresholds that determine which candidates are monitored. By adjusting these thresholds based on channel conditions, the system optimizes the balance between decoding success rate and power consumption, avoiding unnecessary monitoring of low aggregation level candidates in poor channel conditions
Data Source
AI summary
Certain aspects of the subject matter described in this disclosure can be implemented in a method for wireless communication by a user equipment (UE). The method generally includes: selecting a subset of a plurality of decoding candidates of a search space in a control channel based on a property of each of the subset of the plurality of decoding candidates; monitoring the subset of the plurality of decoding candidates; and decoding control information in the control channel based on the monitoring of the subset of the plurality of decoding candidates.