Precoding Matrix Generation via Parameter Calculation and Lookup
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Solution Overview
Problem
The increasing number of antenna ports in LTE communication systems necessitates rapid and accurate generation of precoding matrices, leading to excessive storage requirements and costs due to the need to store all possible matrices.
Innovation Solution
A device and method that generate a precoding matrix through simple calculation and table lookup, utilizing a parameter calculator, counter, and element generator to produce an 8x1 matrix by calculating and combining elements, reducing the reliance on large storage units.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If all possible precoding matrices are stored by providing a large storage device, then the precoding matrix can be quickly accessed, but the storage cost increases rapidly with the number of antenna ports
Solution Approach 1:
The patent extracts only the necessary precoding matrices for a given antenna port configuration from the complete set of possible matrices. Instead of storing all possible matrices, the system stores only the subset required for the current antenna ports, significantly reducing storage requirements while maintaining quick access capability.
Solution Approach 2:
The patent implements a dynamic precoding matrix selection mechanism that adapts to different antenna port configurations. The system dynamically determines which precoding matrices need to be stored and accessed based on the current antenna port settings, allowing efficient operation across varying conditions without requiring fixed large storage capacity.
2Reliability
If the number of antenna ports increases, then the MIMO technology performance improves, but the number of precoding matrices increases rapidly
Solution Approach 1:
The patent changes the parameter of precoding matrix selection based on antenna port configuration. By adjusting which matrices are stored and accessed according to the number and arrangement of antenna ports, the system maintains optimal performance while avoiding the exponential growth in matrix quantity that would otherwise occur with increased antenna ports.
Data Source
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AI summary
The disclosure discloses a device for generating a precoding matrix. The device includes: a parameter calculator, a counter and an element generating module. The parameter calculator is configured to calculate, according to a first Precoding Matrix Identifier (PMI) and a second PMI, a first parameter and a second parameter used for determining a precoding matrix, and send the first parameter and the second parameter to the element generating module. The counter is configured to control the row numbers of elements in the precoding matrix that are generated by the element generating module. The element generating module is configured to generate the elements corresponding to the row numbers in the precoding matrix according to the received first parameter and second parameter and the row numbers. The disclosure also discloses a method for generating a precoding matrix, and a storage medium.