Control Channel Transmission Reliability via Dynamic Frequency Hopping
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Solution Overview
Problem
Existing wireless communication systems face challenges in enhancing the reliability of control channel transmission, particularly in dynamic and diverse mobile communication environments.
Innovation Solution
The proposed solution involves enhancements to the configuration signaling and control channel transmission processes within wireless communication systems, specifically for devices and base stations supporting various technologies such as LTE and 5G NR. This includes optimizing protocol layers, improving bandwidth part adaptation, and refining beam management processes to ensure robust control channel transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If control channel transmission uses traditional methods in dynamic mobile environments, then system complexity is maintained at acceptable levels, but transmission reliability deteriorates due to varying channel conditions
Solution Approach 1:
The patent implements dynamic control channel transmission by allowing the network to adaptively select between frequency hopping and non-frequency hopping modes based on channel conditions. The configuration signaling dynamically indicates whether frequency hopping is applied, enabling the system to respond to varying mobile communication environments while maintaining acceptable complexity through standardized procedures.
2Reliability
If frequency hopping is applied to control channels to improve reliability, then transmission robustness improves, but device complexity increases due to additional configuration parameters and processing
Solution Approach 1:
The patent changes the parameter state by introducing a frequency hopping indicator that can be configured through higher-layer signaling. This indicator dynamically controls whether frequency hopping parameters are applied, allowing the system to switch between hopping and non-hopping modes based on reliability requirements while managing complexity through parameter-based control rather than structural changes.
Solution Approach 2:
The configuration signaling mechanism serves multiple functions: it indicates whether frequency hopping is applied, specifies hopping patterns when enabled, and maintains compatibility with both hopping and non-hopping scenarios. This multi-functional approach consolidates complexity into a unified signaling framework rather than requiring separate handling for different transmission modes.
3Adaptability or versatility
If control channel transmission is enhanced with multiple configuration options, then adaptability to different scenarios improves, but ease of operation deteriorates due to increased configuration management overhead
Solution Approach 1:
The patent applies preliminary action by pre-configuring frequency hopping parameters and patterns through higher-layer signaling before actual control channel transmission. The network prepares multiple configuration options in advance, and the frequency hopping indicator selectively activates appropriate pre-prepared configurations, reducing real-time configuration management overhead while maintaining adaptability.
Data Source
AI summary
A wireless device may receive configuration parameter(s) indicating that a first search space and a second search space are used together for reception of DCI. A configuration parameter of the first search space and a configuration parameter of the second search space may have the same value based on the first search and the second search space being used together. The wireless device may receive a first DCI based on monitoring in a CORESET based on the first search space and monitoring in a CORESET based on the second search space.