Multi-carrier Dynamic Antenna Diversity Control
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Solution Overview
Problem
Existing dynamic antenna diversity schemes do not consider carrier aggregation, leading to performance penalties or unnecessary power consumption, as they apply the same antenna diversity settings to all carriers, which can have different preferred settings based on varying conditions.
Innovation Solution
An antenna diversity circuit that dynamically activates processing chains for each carrier based on specific conditions such as signal strength, quality of service, and interference, allowing separate control for each carrier to optimize antenna usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If the antenna diversity circuit selects one antenna for both carriers, then power consumption is reduced, but performance degradation occurs for Carrier A
Solution Approach 1:
The patent segments the antenna diversity control into separate controls for each carrier. The processing circuit determines diversity settings independently for Carrier A and Carrier B based on their respective conditions, allowing Carrier A to use one antenna while Carrier B uses two antennas, thus avoiding the performance degradation that would occur with a unified one-antenna setting.
Solution Approach 2:
The patent applies local quality by tailoring the antenna diversity settings to the specific conditions of each carrier. Carrier A, which prefers one antenna under its current conditions, receives a different diversity setting than Carrier B, which prefers two antennas. This localized optimization resolves the contradiction by matching each carrier's settings to its local requirements rather than applying a uniform setting.
2Reliability
If the antenna diversity circuit selects two antennas for both carriers, then performance is maintained for Carrier A, but unnecessary power consumption occurs for Carrier B
Solution Approach 1:
The processing circuit segments the diversity control decisions, evaluating Carrier A and Carrier B separately. This allows the system to maintain two-antenna diversity for Carrier A when needed while switching to one-antenna mode for Carrier B when conditions allow, thereby maintaining performance where necessary while reducing power consumption where possible.
Solution Approach 2:
The patent dynamically changes the diversity parameter (number of antennas) based on carrier-specific conditions. The processing circuit adjusts the antenna diversity setting for each carrier independently according to factors such as channel conditions, traffic requirements, and quality of service parameters, allowing optimal performance-power trade-offs for each carrier.
3Device complexity
If the same antenna diversity setting is applied to all carriers, then device complexity is reduced, but performance penalties occur when carriers have different preferred settings
Solution Approach 1:
The patent implements segmentation by creating separate control paths for each carrier within the processing circuit. Each carrier's diversity setting is determined independently based on its own conditions, allowing the system to achieve optimal performance for multiple carriers with different requirements while maintaining a manageable control structure through modular processing.
Data Source
AI summary
An antenna diversity circuit having a plurality of processing chains including first and second processing chains configured to communicate with a first antenna, and process signals for first and second carriers, respectively, and third and fourth processing chains configured to communicate with a second antenna, and process signals for the first and second carriers, respectively; and a dynamic antenna diversity controller configured to activate one or more of the plurality of processing chains based on a predetermined set of criteria.