4P6T Multi-Way Switch for 5G SRS Antenna Switching
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Solution Overview
Problem
Current wireless communication devices in 5G NR systems face challenges in efficiently implementing SRS switching across four antennas due to complex radio frequency architectures, leading to increased link loss and suboptimal transmission and reception performance.
Innovation Solution
A 4P6T multi-way switch is introduced, featuring two fully coupled T ports for transmission and four individually coupled T ports for reception, reducing the number of series switches and integrating them into the main switch to optimize the radio frequency architecture, thereby enhancing SRS switching efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a complex radio frequency architecture with multiple series switches is used to implement SRS switching across four antennas, then the switching functionality is achieved, but link loss increases and transmission performance deteriorates
Solution Approach 1:
The patent merges multiple series switches into a single multi-way switch component. Specifically, it uses a 4P6T (4 pole, 6 throw) switch to replace what would traditionally require multiple separate switches, thereby reducing the number of switching components in the signal path and minimizing cumulative link loss while maintaining the ability to switch SRS signals across four antennas.
Solution Approach 2:
The multi-way switch is designed to perform multiple functions: it handles both SRS switching and regular data transmission switching across the four-antenna system. By making the switch universal, the patent eliminates the need for separate dedicated SRS switching components, reducing overall system complexity and potential points of signal loss.
2Adaptability or versatility
If multiple series switches are used for SRS switching, then antenna switching capability is achieved, but device complexity increases
Solution Approach 1:
The patent combines multiple switching functions into a single 4P6T multi-way switch component. This consolidation reduces the number of discrete components in the radio frequency architecture, simplifying the overall system design while maintaining full four-antenna switching capability for SRS signals.
Solution Approach 2:
The multi-way switch is designed to be universal, handling both SRS switching and regular data transmission switching across the four-antenna system. This multi-functionality eliminates the need for separate dedicated SRS switching components, reducing overall system complexity.
3Reliability
If traditional switch configurations are used, then basic transmission function is achieved, but reception performance is suboptimal
Solution Approach 1:
The patent applies local quality by designing different T ports with specialized characteristics: two T ports are optimized for transmission functions while four T ports are optimized for reception functions. This localized optimization of port characteristics according to their specific functional requirements improves overall reception performance without requiring complete redesign of the entire switch system.
Data Source
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Figure 4A
AI summary
A multi-way switch, a radio frequency system, and a wireless communication device are provided. The multi-way switch includes six T ports and four P ports. The six T ports include two first T ports and each of the two first T ports is coupled with all of the four P ports. The two first T ports support only a transmission function. The multi-way switch is configured to be coupled with a radio frequency circuit and an antenna system of a wireless communication device operable in a dual-frequency dual-transmit mode. The antenna system includes four antennas corresponding to the four P ports.