Common PDCCH Configuration via Resource Location Signaling
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Solution Overview
Problem
Current wireless communication systems face inefficiencies due to user equipment (UE) performing multiple 'blind decode' operations to identify time-frequency resources for control channels, leading to increased network latency and decreased performance.
Innovation Solution
The proposed solution involves generating and transmitting resource location information by network nodes to UEs, allowing them to identify candidate time-frequency resource locations for common control channels, thereby reducing the need for rigorous blind decoding and enhancing resource utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If UE performs multiple blind decode operations to monitor multiple time-frequency resource locations, then the UE can discover control channels with unknown locations, but network latency increases and system performance decreases
Solution Approach 1:
The network node performs preliminary action by pre-configuring and signaling the time-frequency resource locations for the common control channel to the UE before the UE needs to monitor for control information. This eliminates the need for the UE to perform multiple blind decode operations across multiple unknown locations, thereby reducing latency while maintaining the flexibility to support dynamic control channel placement through configured candidates.
2Adaptability or versatility
If UE performs multiple blind decode operations to monitor multiple time-frequency resource locations, then the UE can discover control channels with unknown locations, but system performance decreases
Solution Approach 1:
The network node performs preliminary action by pre-configuring and signaling the time-frequency resource locations for the common control channel to the UE before the UE needs to monitor for control information. This eliminates the need for the UE to perform multiple blind decode operations across multiple unknown locations, thereby reducing latency while maintaining the flexibility to support dynamic control channel placement through configured candidates.
3Productivity
If the network node dynamically selects time-frequency resources for control channels, then resource utilization is optimized, but the UE must perform more blind decoding operations
Solution Approach 1:
The network node acts as an intermediary by providing the UE with configured candidate time-frequency resource locations through signaling. This intermediary mechanism allows the network to dynamically select optimal resources for control channels while shielding the UE from the complexity of evaluating multiple unknown locations. The UE simply needs to monitor the configured candidates rather than performing exhaustive blind decoding, thus reducing UE processing complexity while maintaining efficient resource utilization.
Data Source
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AI summary
The present disclosure describes example techniques for configuring and utilizing common control channels and configuration thereof in wireless communication systems. For instance, in an aspect, the present disclosure describes an example method performed by a network node (106) (also referred to herein as a base station, eNB, next-generation NodeB (gNB), or the like) that includes generating resource location information identifying one or more candidate time-frequency resource locations for a common control channel utilized in the cell. In addition, the example method can include transmitting the resource location information to one or more UEs and/or one or more other network nodes.