PDCCH Channel Processing With Precomputed Blind Detection Parameters
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Solution Overview
Problem
The increased complexity and calculation load in processing Physical Downlink Control Channels (PDCCH) in 5G NR due to diversified and flexible configurations, leading to time constraints in correct reception during Transmission Time Intervals (TTIs).
Innovation Solution
A method and apparatus that pre-calculates de-mapping and blind detection parameters during semi-static processing, establishing a database for rapid retrieval during dynamic processing, reducing the overall calculation load and improving efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If diversified and flexible PDCCH configurations are implemented in 5G NR, then the adaptability and functionality of the system are improved, but the device complexity and calculation load increase significantly
Solution Approach 1:
The patent applies preliminary action by pre-calculating de-mapping parameters and blind detection parameters during semi-static processing before the actual PDCCH reception. This includes generating all possible parameter combinations and storing them in advance, so that during dynamic processing, the receiver only needs to retrieve and use the pre-calculated parameters corresponding to the current configuration, rather than calculating them in real-time.
2Measurement precision
If comprehensive parameter calculation is performed for all PDCCH configurations, then the measurement precision and reliability of parameter processing are improved, but the time consumption exceeds the TTI duration
Solution Approach 1:
The patent performs all necessary parameter calculations in advance during semi-static processing, generating comprehensive de-mapping parameters and blind detection parameters for all possible PDCCH configurations. These pre-calculated parameters are stored and ready for immediate retrieval during dynamic processing, ensuring both high precision and timely completion within TTI constraints.
Solution Approach 2:
The patent segments the parameter processing into two distinct phases: semi-static processing where comprehensive parameter calculation and storage occur, and dynamic processing where only parameter retrieval and application are performed. This segmentation allows the computationally intensive calculations to be done when time is not constrained, while the time-critical reception phase only performs lightweight operations.
3Productivity
If real-time parameter calculation is performed during dynamic processing, then the productivity and response speed are improved, but the calculation load cannot be completed within the TTI time constraint
Solution Approach 1:
The patent calculates all necessary de-mapping parameters and blind detection parameters in advance during semi-static processing, storing them for rapid retrieval during dynamic processing. This eliminates the need for real-time calculation during the time-constrained TTI, allowing the system to maintain high productivity by simply retrieving pre-computed parameters rather than performing intensive calculations under time pressure.
Data Source
AI summary
A channel information processing method includes: generating a de-mapping related parameter of each CORESET and a first start parameter of each search space; generating a second start parameter of each CORESET; traversing each second start occasion, calculating index information of blind detection parameter and de-mapping related parameter, and storing the index information of the blind detection parameter and the de-mapping related parameter into a search space associated with the traversed second start occasion; traversing each search space, if a traversed search space is activated, updating a state of an activation flag in the second start occasion to an activated state; and sequentially traversing each second start occasion according to a time sequence, and in a case where the state of the activation flag in the traversed second start occasion is the activated state, reading the de-mapping related parameter and the blind detection parameter corresponding to the second start occasion.