Resource Element Identification for Uplink Processing
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Solution Overview
Problem
In high-speed wireless communication networks like LTE and 5G, accurately processing uplink transmissions is challenging due to the mixing of reference signals with data and uplink control information, requiring efficient methods to identify and separate resource elements for effective data processing.
Innovation Solution
A resource element identification system that categorizes received uplink symbols into specific categories, allowing for special treatment by downstream processing functions such as soft demapping, descrambling, and SINR calculation, enabling efficient extraction of data and uplink control information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If reference signals are included in uplink transmissions for channel estimation, then channel estimation accuracy is improved, but processing complexity increases due to the need to account for and skip reference signal resource elements
Solution Approach 1:
The patent segments the uplink transmission resource elements into distinct categories: reference signal REs and data/UCI REs. By dividing the processing into separate paths where reference signals are extracted and handled independently from data REs, the system maintains channel estimation accuracy while reducing processing complexity through specialized handling of each segment type.
Solution Approach 2:
The patent extracts reference signal resource elements from the uplink transmission stream before data processing. By taking out the reference signals and handling them separately for channel estimation purposes, the system improves measurement precision while reducing the complexity of subsequent data processing operations.
2Productivity
If reference signals are mixed with data in uplink transmissions for efficient resource utilization, then resource utilization efficiency is improved, but data processing accuracy deteriorates due to the need to skip reference signal elements
Solution Approach 1:
The patent segments resource elements into reference signal REs and data/UCI REs, allowing simultaneous optimization of resource utilization (through mixed transmission) and data processing accuracy (through separate processing paths that skip reference signal elements during data demodulation).
Solution Approach 2:
The patent applies different processing qualities to different parts of the transmission: reference signal REs receive specialized processing for channel estimation, while data REs receive optimized processing for accurate demodulation. This local differentiation maintains both resource utilization efficiency and data processing accuracy.
3Manufacturing precision
If special processing is applied to skip reference signal resource elements during data processing, then data processing accuracy is improved, but processing time increases
Solution Approach 1:
The patent performs preliminary extraction and categorization of reference signal resource elements before the main data processing stage. By identifying and separating reference signal REs in advance, the system achieves accurate data processing while reducing the time penalty of special processing, as the skipping logic is prepared beforehand rather than computed during data demodulation.
Data Source
AI summary
Methods and apparatus for providing a resource element identification system to process received uplink transmissions. In an embodiment, a method is provided that includes receiving one or more symbols from an uplink transmission. Each symbol comprises resource elements. The method also includes categorizing the resource elements into a plurality of categories to generated categorized resource elements, and forwarding the categorized resource elements to downstream processing functions.