Dynamic Antenna Switching for 5G Multi-Mode Conflicts
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Solution Overview
Problem
In 5G electronic devices, the limited number of antennas causes conflicts during antenna switching in different networking modes and scenarios, such as NSA and SA, leading to reduced antenna throughput efficiency due to inter-antenna conflicts, especially when multiple modes like LTE and NR operate simultaneously.
Innovation Solution
A dynamic antenna switching method that determines antenna switching sequences based on the current networking mode and scenario, dividing antennas into groups to optimize switching, ensuring that only necessary antennas are used for SRS switching, thereby avoiding conflicts and improving throughput.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple antennas are used for SRS switching in 5G devices, then channel estimation accuracy and beamforming performance are improved, but antenna conflicts occur when LTE and NR operate simultaneously in dual-card scenarios
Solution Approach 1:
The patent implements dynamic antenna switching sequences that adapt based on the current networking mode (NSA or SA) and operational scenario. The switching sequence is not fixed but changes dynamically to avoid conflicts between LTE and NR antennas, allowing the system to maintain both multi-mode operation capability and channel estimation accuracy through context-aware antenna selection
Solution Approach 2:
The patent changes the antenna switching parameters (switching sequence, active antenna set) based on the detected networking mode and scenario. By modifying these parameters dynamically, the system resolves antenna conflicts while maintaining optimal channel estimation performance for the current operational context
2Adaptability or versatility
If the number of antennas is increased to support multi-mode operation, then networking mode versatility is improved, but device size and manufacturing complexity increase
Solution Approach 1:
The patent makes the existing antenna system universal by implementing a configurable switching mechanism that allows the same physical antennas to serve different functions in different modes. The antenna switching apparatus enables a single antenna set to support both NSA and SA modes, dual-card scenarios, and various networking configurations without requiring additional dedicated antennas for each mode
3Reliability
If antenna switching is performed in dual-card scenarios with LTE occupying two antennas, then LTE communication is maintained, but NR SRS switching capability is reduced due to inter-antenna conflicts
Solution Approach 1:
The patent segments the antenna resources by creating separate antenna groups for LTE and NR operations. In dual-card scenarios, it identifies which antennas are occupied by LTE and allocates the remaining antennas for NR SRS switching, effectively dividing the antenna resource pool to eliminate conflicts while maintaining both LTE reliability and NR throughput efficiency
Data Source
AI summary
This application provides a method for dynamically switching antennas. User equipment determines an antenna switching sequence based on a networking mode of the user equipment and an actual scenario, and performs antenna switching based on the determined antenna switching sequence. When the technical solutions of this application are implemented, a problem that a conflict exists in an antenna switching process is effectively resolved without adding hardware.