Control channel sending method, apparatus and device, detection method, apparatus and device, and storage medium
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Solution Overview
Problem
The resource utilization rate of control channels in 5G communication systems is low due to inefficient transmission configurations, inflexible resource allocation, and waste of resources caused by static CORESET configurations and correlated DCI design, leading to poor resource management and increased overheads.
Innovation Solution
Implementing a method where different control information is sent using distinct transmission configurations, allowing for dynamic adjustment of CORESET size and position, and optimizing the transmission parameters such as aggregation level, power, and blind detection search space based on the data channel characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single control channel uses a fixed transmission configuration, then the system complexity is reduced, but the resource utilization rate deteriorates
Solution Approach 1:
The control channel is divided into multiple control channels, each with its own transmission configuration. The sending end determines different transmission configurations (including CORESET size, position, aggregation level, and power) for different control channels based on data channel characteristics, thereby improving resource utilization while maintaining manageable system complexity through structured segmentation.
Solution Approach 2:
The transmission configuration of control channels is made dynamic rather than fixed. The sending end dynamically determines transmission configurations based on data channel characteristics, allowing the system to adapt resource allocation to actual transmission needs, thus improving resource utilization rate without significantly increasing system complexity.
2Device complexity
If static CORESET configuration is used, then the configuration complexity is reduced, but resource allocation flexibility deteriorates
Solution Approach 1:
The CORESET configuration is transformed from static to dynamic. The sending end determines CORESET size and position as part of the transmission configuration for each control channel based on data channel characteristics, enabling flexible resource allocation while maintaining clear configuration procedures through standardized determination rules.
3Loss of information
If correlated DCI design is used, then the control information efficiency is improved, but resource waste increases
Solution Approach 1:
The control information is segmented into multiple control channels rather than being combined in correlated DCI. Each control channel carries specific control information with its own optimized transmission configuration, preventing resource waste from using overly conservative configurations across all control information while maintaining efficiency through targeted information delivery.
4Ease of operation
If uniform transmission configuration is applied to all control channels, then the implementation simplicity is maintained, but transmission efficiency deteriorates
Solution Approach 1:
Different transmission configurations are applied to different control channels based on their specific requirements and data channel characteristics. The sending end determines appropriate CORESET size, position, aggregation level, and power for each control channel individually, optimizing transmission efficiency for each while maintaining implementation simplicity through systematic determination rules.
Data Source
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AI summary
Provided are a method, an apparatus and a device for sending a control channel, a method, an apparatus and a device for detecting a control channel, and a storage medium. The method for sending a control channel includes that a sending end sends a first control channel using a first transmission configuration, the first control channel carrying first control information for indicating transmission configuration information of a data channel and that the sending end sends a second control channel using a second transmission configuration, the second control channel carrying second control information for indicating transmission configuration information of the data channel.