3-Port Uplink Precoding Codebooks for MIMO Throughput
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current commercial terminals support only 2-port uplink transmission due to complexity and overhead limitations, preventing the application of defined 4-port codebooks and insufficient throughput in uplink MIMO transmissions.
Innovation Solution
Implementing a 3-port uplink transmission with a single polarization arrangement and configuring codewords in fully coherent, partially coherent, or non-coherent codebooks, using discrete Fourier transform vectors to ensure orthogonality and reliability, allowing terminals to precode uplink channels effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If 4-port codebook is defined for uplink MIMO transmission, then throughput is improved, but device complexity and overhead increase beyond terminal support capabilities
Solution Approach 1:
The patent segments the 4-port codebook into multiple 3-port codebooks, each corresponding to different antenna port configurations. This segmentation allows terminals to support 3-port transmission without requiring full 4-port capability, thereby reducing complexity while maintaining improved throughput performance.
Solution Approach 2:
The patent changes the parameter of antenna port count from 4 to 3, creating a 3-port codebook that balances performance and complexity. By adjusting this key parameter, the system achieves better throughput than 2-port while avoiding the excessive complexity of 4-port configurations.
2Device complexity
If 2-port transmission is used in commercial terminals, then device complexity and overhead are limited, but throughput is insufficient
Solution Approach 1:
The patent increases the antenna port count parameter from 2 to 3, enabling terminals to achieve higher throughput while keeping complexity and overhead at acceptable levels. The 3-port configuration serves as an optimal middle ground between 2-port limitations and 4-port complexity.
Solution Approach 2:
The patent introduces dynamic selection among multiple 3-port codebooks based on different antenna port configurations and coherence types. This dynamic approach allows terminals to adapt to different transmission scenarios, achieving better throughput performance without permanently increasing complexity.
3Adaptability or versatility
If codebooks are configured for different coherence types, then adaptability is improved, but device complexity increases
Solution Approach 1:
The patent segments the codebook configuration into multiple 3-port codebooks, each optimized for specific coherence types (fully coherent, partially coherent, non-coherent). This segmentation enables adaptable support for different coherence types while keeping each individual codebook relatively simple.
Solution Approach 2:
The patent creates a universal 3-port codebook structure that can function across different coherence types. By designing codebooks that work for multiple coherence scenarios, the system achieves high adaptability without requiring separate complex codebooks for each type.
Data Source
Figure 1a~2
Figure 3a~3b
Figure 4a~4c
AI summary
The present disclosure relates to an information processing method and apparatus, a communication device, a communication system, and a storage medium. The method is executed by a terminal, and comprises: receiving first information sent by a network device, wherein the first information is used for indicating a first codeword in a codebook, the codebook is a codebook corresponding to the number of antenna ports of an uplink channel sent by the terminal, and there are three antenna ports of the uplink channel sent by the terminal; precoding the uplink channel on the basis of the first codeword; and sending the precoded uplink channel to the network device. The uplink transmission throughput is effectively ensured, and the problems of excessive complexity and overhead are also avoided.