Downlink Reception Across Multiple TRPs With Overlapping CORESET Pools
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Solution Overview
Problem
Existing wireless communication systems face challenges in managing overlapping reference signals and downlink signals with different spatial quasi-co-location assumptions, leading to inefficiencies and potential interference.
Innovation Solution
A method for a wireless device to determine overlapping reference signals and downlink signals with different control resource set pool indices and drop at least one of them based on these indices, ensuring efficient signal management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the wireless device receives both overlapping reference signals and downlink signals with different spatial quasi-co-location assumptions, then signal diversity is improved, but interference and processing complexity increase
Solution Approach 1:
The patent applies local quality by making the signal reception behavior dependent on the specific coreset pool index configuration. The wireless device selectively applies different spatial quasi-co-location assumptions based on whether the first and second coreset pool indices are the same or different, allowing optimal signal processing for each specific case while avoiding unnecessary interference
Solution Approach 2:
Instead of assuming signals with different coreset pool indices can be received simultaneously, the patent inverts the approach by dropping one of the overlapping signals when the indices differ. This inversion prevents interference by prioritizing one signal over the other based on the index comparison
2Quantity of substance
If the wireless device processes all overlapping signals simultaneously, then signal completeness is improved, but processing complexity and power consumption increase
Solution Approach 1:
The patent extracts and identifies the specific condition causing processing complexity - the overlap of signals with different coreset pool indices. By detecting this condition and selectively dropping one of the overlapping signals, the device reduces processing complexity while maintaining signal completeness for the non-overlapping case
Solution Approach 2:
The patent applies partial action by not processing all overlapping signals simultaneously. Instead, it processes only the necessary signal based on the coreset pool index comparison, avoiding the excessive processing of redundant or interfering signals while maintaining adequate signal completeness
Data Source
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AI summary
A method for a wireless device of a wireless communication network is described herein. In accordance with one embodiment, the method incudes determining - by the wireless device - that a reference signal associated with a first control resource set (coreset) pool index overlaps in time with a downlink signal associated with a second coreset pool index; and, based on the first coreset pool index and the second coreset pool index being different, dropping at least one of: the reference signal; and the downlink signal. Moreover, a corresponding method for a base station, a respective wireless device and a respective base station as well as related systems and devices are described herein.