RF Module Switch Segmentation for SRS Throughput Stability
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Solution Overview
Problem
Existing radio frequency modules experience a decrease in throughput during simultaneous communication with SRS and normal radio frequency signals due to load variation in filters.
Innovation Solution
A radio frequency module configuration that includes a TDD filter, a transmission filter, and a switch capable of switching between different connection states to maintain consistent load on filters during SRS transmission and normal communication, using a first switch with common terminals connected to antennas and filters to ensure simultaneous operation without performance loss.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If an antenna switch is used to connect multiple antennas to a single filter, then antenna flexibility and communication versatility are improved, but load variation on the filter occurs during simultaneous SRS and normal communication, causing throughput decrease
Solution Approach 1:
The patent divides the filter system into multiple independent filters (first filter for SRS, second filter for normal communication). Each filter serves a dedicated function, preventing load variation and maintaining stable throughput while allowing flexible antenna connections through the switch.
2Device complexity
If a single filter is used for both SRS and normal communication, then device complexity is reduced, but load variation occurs during simultaneous operation causing performance degradation
Solution Approach 1:
The patent segments the filter function into separate dedicated filters for SRS and normal communication. This segmentation isolates the signal paths, preventing load variation and maintaining reliable communication performance while the switch manages antenna connections.
3Reliability
If multiple filters are used for SRS and normal communication, then communication performance stability is improved, but device complexity increases
Solution Approach 1:
The patent employs a multi-functional switch that can connect different antennas to different filters based on communication mode. The switch handles both SRS and normal communication routing, providing versatility while managing the complexity of multiple filters through intelligent signal routing.
Data Source
AI summary
A radio frequency module that includes a first antenna terminal, a second antenna terminal, a TDD filter, a transmission filter, a filter, and a first switch. The first switch has a first common terminal, a second common terminal, a first terminal, a second terminal, and a third terminal. The filter is connected to the first terminal, the TDD filter is connected to the second terminal, and the transmission filter is connected to the third terminal. The first switch is capable of switching between a first connection state and a second connection state. The first connection state connects the first common terminal to the first terminal and the first common terminal to the second terminal simultaneously. The second connection state connects the first common terminal to the first terminal, the first common terminal to the second terminal, and the second common terminal to the third terminal simultaneously.