Antenna Switched Diversity for Multi-SIM Concurrent Operations
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Solution Overview
Problem
Wireless communication networks face interference and congestion due to increasing demand for mobile broadband access, which degrades performance and affects both downlink and uplink transmissions, especially in multi-SIM concurrent operations.
Innovation Solution
The implementation of antenna-switched diversity techniques, such as FDD and TDD, allows for efficient mapping of transmission and reception paths across multiple SIMs, preventing antenna switch conflicts and optimizing antenna usage to maintain performance during concurrent operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If antenna resources are shared between multiple SIMs for concurrent operations, then device complexity is reduced, but antenna switch conflicts occur causing communication reliability degradation
Solution Approach 1:
The patent segments antenna resources by creating separate antenna switch matrices for FDD and TDD operations, with dedicated antenna groups for each SIM. This segmentation allows independent control of antenna switching for different SIMs, preventing switch conflicts while maintaining reduced overall device complexity through shared hardware infrastructure.
Solution Approach 2:
The patent implements dynamic antenna mapping where the antenna switch configuration is dynamically adjusted based on whether FDD or TDD mode is active. The system dynamically selects which antenna groups are activated and how they are mapped to transmission/reception paths, enabling conflict-free concurrent operations adaptively.
2Reliability
If antenna switching is performed for diversity techniques, then communication reliability is improved, but antenna switch conflicts arise during multi-SIM concurrent operations
Solution Approach 1:
The patent introduces an intermediary antenna switch matrix structure that mediates between FDD and TDD operations. This intermediate switching layer allows diverse antenna paths to be established without direct conflict between SIM operations, enabling diversity techniques to function while preventing harmful switch conflicts.
Solution Approach 2:
The patent applies local quality by providing different antenna switching characteristics for different operational modes. FDD operations receive dedicated antenna switching treatment while TDD operations receive separate treatment, with each having optimized antenna mapping tailored to its specific requirements, thus eliminating conflicts while maintaining reliability.
3Object-generated harmful factors
If separate antenna resources are allocated to each SIM for concurrent operations, then antenna switch conflicts are prevented, but device complexity and resource consumption increase
Solution Approach 1:
The patent makes antenna resources universal by designing a multi-functional antenna system where the same physical antennas can serve both FDD and TDD SIMs through configurable switch matrices. The antenna resources are not permanently dedicated but can be universally allocated to different SIMs based on operational requirements, preventing conflicts without increasing hardware complexity.
Solution Approach 2:
The patent merges FDD and TDD antenna switching functions into a unified antenna resource pool with intelligent control. By combining the antenna resources and using smart switching logic, the system prevents switch conflicts that would arise from completely separate allocations while avoiding the complexity of fully independent antenna systems.
Data Source
AI summary
Wireless communication techniques for antenna-switched diversity and multi-SIM concurrent operation management are discussed. A UE may communicate via a transmission path associated with a first subscriber identification module (SIM). The transmission path may be mapped to one of a first one or more antennas in accordance with a determination as to whether the UE supports at least one of frequency-division duplex (FDD) antenna-switched diversity or time-division duplex (TDD) antenna-switched diversity when concurrently performing wireless communication associated with the first SIM and wireless communication associated with a second SIM. The UE may also communicate via at least one reception path associated with the second SIM. The at least one reception path may be mapped to a second one or more antennas in accordance with the determination as to whether the UE supports at least one of FDD antenna-switched diversity or TDD antenna-switched diversity.