DCI Reception Parameterization for Multi-TRP CCE Alignment
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Solution Overview
Problem
In communication systems using multiple TRPs, the accuracy of downlink control information (DCI) reception is compromised due to uncertainties in the number of control channel elements (CCEs) used by each TRP, leading to errors in DCI signaling.
Innovation Solution
Determine a transmission parameter for DCI that includes a first number and a second number to accurately indicate the quantity of CCEs in different beam directions, facilitating precise DCI reception and reducing blind detections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple TRPs are used to transmit DCI, then coverage and reliability are improved, but uncertainty in the number of CCEs used by each TRP causes reception errors
Solution Approach 1:
The patent segments the CCE quantity indication into two separate parameters: a first number indicating CCEs in beam directions, and a second number indicating CCEs during rate matching or decoding. This segmentation allows each parameter to be optimized for its specific purpose, resolving the contradiction between coverage reliability and measurement precision.
Solution Approach 2:
The patent introduces a new dimensional approach by adding a second number parameter that operates in a different dimension from the first number. While the first number handles spatial distribution across beam directions, the second number handles the rate matching and decoding dimensions, thereby achieving both reliability and precision simultaneously.
2Adaptability or versatility
If the number of CCEs is not accurately indicated, then transmission flexibility is maintained, but DCI signaling errors occur
Solution Approach 1:
The patent implements dynamic adaptability through the two-number parameter system, where the first number can be flexibly configured for different beam directions while the second number dynamically adapts to rate matching requirements. This dynamic structure maintains transmission flexibility while ensuring signaling accuracy through precise indication of CCE quantities in each context.
Data Source
AI summary
An information receiving method, including: determining transmission parameters for downlink control information (DCI), the transmission parameters including a first number and a second number; and receiving the DCI according to the first number and the second number.