NR Terminal Blind Detection Reduction via Control Resource Segmentation
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Solution Overview
Problem
In new radio (NR) systems, the efficient exchange of control information between a base station and a terminal device is challenging, particularly in multipoint transmission scenarios, where the terminal device must blindly detect control information across multiple control resource sets without increasing the number of blind detection times, even when payload sizes differ.
Innovation Solution
The method involves configuring the terminal device to receive separate configuration information for each control resource set, allowing it to detect control information in specific candidate sets, ensuring that the sum of the sizes of these candidate sets does not exceed a threshold, thereby reducing the number of blind detection times without requiring identical payload sizes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the terminal device blindly detects control information in multiple control resource sets, then the control information can be received from multiple base stations, but the number of blind detection times increases
Solution Approach 1:
The patent segments the control resource sets into multiple distinct sets, each associated with specific base stations. The terminal device is configured to monitor specific candidate sets within each control resource set, dividing the blind detection process into manageable segments rather than searching all possible candidates across all sets simultaneously.
Solution Approach 2:
The base station performs preliminary action by configuring the terminal device with specific control resource set assignments and candidate set indications before the actual control information transmission. This pre-configuration allows the terminal to narrow down its search space and perform blind detection only in predetermined locations, reducing the overall number of detection attempts needed.
2Adaptability or versatility
If different payload sizes are used for control information in different control resource sets, then the control information can be optimized for different scenarios, but the terminal device cannot efficiently detect control information without knowing the payload size in advance
Solution Approach 1:
The patent segments control information transmission by associating different payload sizes with different control resource sets. Each control resource set is configured with specific payload size characteristics, allowing the terminal to optimize its detection strategy for each set without needing to handle all possible payload sizes in every detection attempt.
Solution Approach 2:
Different control resource sets have different local qualities in terms of payload size characteristics. The patent applies local quality by configuring each control resource set with specific payload size parameters appropriate for its intended use case, while the terminal adapts its detection approach locally to each set rather than using a uniform detection method.
Data Source
AI summary
The present disclosure relates to data transmission methods, terminal devices, and base station systems. In one example method, a base station sends information about a first control resource set and information about a second control resource set to a terminal device. The terminal device detects first control information in a first control channel candidate set, and detects second control information in a second control channel candidate set.