Flexible Antenna Port Switching for MIMO and Carrier Aggregation
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Solution Overview
Problem
Current systems for transferring multiple data streams using multiple antenna elements lack flexibility in associating data streams with antenna elements, limiting their ability to efficiently perform downlink 2x2 MIMO and carrier aggregation.
Innovation Solution
An apparatus with flexible switching arrangements that couple exclusive groups of antenna ports to data stream interfaces, allowing for adaptive gain control and reconfiguration of antenna port associations, enabling efficient use of multiple-input multiple-output (MIMO) layers and carrier aggregation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If fixed antenna port associations are used for data streams, then system configuration is simple, but adaptability to different MIMO layers and carrier aggregation scenarios is limited
Solution Approach 1:
The patent implements dynamic reconfiguration of antenna port associations through switching arrangements that can be changed based on operational requirements. The system transitions from fixed to flexible associations, allowing antenna ports to be dynamically assigned to different data stream interfaces according to MIMO layer requirements and carrier aggregation scenarios.
Solution Approach 2:
The switching arrangement enables antenna ports to serve multiple functions by being reassigned to different data stream interfaces. A single antenna port can be associated with different data streams depending on the operational mode, making the system universally applicable to various MIMO configurations and carrier aggregation scenarios.
2Reliability
If flexible switching arrangements are implemented to enable adaptive gain control, then MIMO performance is improved, but device complexity increases
Solution Approach 1:
The system employs feedback mechanisms where the controller monitors operational conditions and adjusts the switching arrangement accordingly. This feedback-driven adaptation enables optimal gain control and MIMO performance by dynamically reconfiguring antenna port associations based on real-time signal conditions and operational requirements.
Solution Approach 2:
The patent changes operational parameters such as the number of antenna ports associated with each data stream interface and the spatial distribution of ports. These parameter changes are achieved through the switching arrangement, allowing the system to optimize MIMO performance by adjusting configuration parameters rather than fundamentally changing the hardware architecture.
3Productivity
If antenna ports are statically assigned to data stream interfaces, then implementation is straightforward, but the ability to perform carrier aggregation and adapt to different MIMO layers is restricted
Solution Approach 1:
The patent segments the antenna ports into flexible groups that can be independently assigned to different data stream interfaces. This segmentation allows the system to perform carrier aggregation by assigning specific antenna ports to specific carriers while maintaining the ability to reconfigure for different MIMO layers, thereby improving both productivity and adaptability.
Data Source
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AI summary
An apparatus comprising: first data stream interfaces; second data stream interfaces; first ports for antenna elements; second ports for antenna elements; a switching arrangement configured to couple: flexible, exclusive groups of first ports to first data stream interfaces and flexible, exclusive groups of second ports to second data stream interfaces.