Access Point Multiple Antenna Mode Control Method
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Solution Overview
Problem
Existing multiple antenna systems in wireless communication cannot simultaneously employ spatial multiplexing, spatial diversity, and beam forming techniques due to their different basic principles, limiting their applicability in various channel environments, especially in mobile scenarios where adaptive selection of optimal transmission modes is needed.
Innovation Solution
A multiple antenna mode control method where an Access Point periodically broadcasts its supported modes, the Station reports its capabilities, and a suitable mode is chosen for communication based on both sides' capabilities and algorithms, enabling adaptive selection and negotiation for reliable and high-speed data transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If only one multiple antenna technique (spatial multiplexing, spatial diversity, or beam forming) is applied in the wireless communication system, then the system can operate reliably in specific channel environments, but the system cannot adapt to different channel conditions and mobile scenarios where optimal mode selection is needed
Solution Approach 1:
The patent implements dynamic selection of multiple antenna modes by enabling the wireless communication system to adaptively choose between spatial multiplexing, spatial diversity, and beam forming techniques based on real-time channel conditions and mobility scenarios. The system transitions from static single-mode operation to dynamic multi-mode operation, allowing optimal performance across varying environmental conditions.
Solution Approach 2:
The patent changes the operational parameters of the multiple antenna system by introducing mode selection capabilities that adjust the transmission technique according to channel quality indicators, signal-to-noise ratios, and mobility detection results. This parameter adaptation enables the system to optimize performance metrics such as throughput and reliability based on current operating conditions.
2Productivity
If multiple antenna modes are simultaneously supported and negotiable, then the system achieves higher network throughput and lower error rates, but the negotiation and control mechanism increases system complexity
Solution Approach 1:
The patent performs preliminary capability exchange during the initial association or reassociation phase, where the access point and station pre-negotiate and store supported multiple antenna modes. This preliminary action eliminates the need for continuous complex negotiations during data transmission, reducing real-time control overhead while maintaining high throughput performance.
Solution Approach 2:
The patent implements feedback mechanisms where the access point and station exchange capability information and mode selection preferences, allowing each device to adjust its transmission strategy based on the other's supported modes. This feedback loop enables intelligent mode selection that maximizes network throughput while managing system complexity through cooperative decision-making.
3Loss of information
If the Access Point broadcasts all supported multiple antenna modes, then the Station can make informed selection decisions, but the broadcast overhead and information processing increase
Solution Approach 1:
The patent extracts and transmits only the essential capability information regarding supported multiple antenna modes during the association phase, rather than broadcasting comprehensive operational parameters. This selective information extraction reduces broadcast overhead and processing time while providing sufficient data for the station to make informed mode selection decisions during subsequent communications.
Data Source
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AI summary
A multiple antenna mode control method based on an Access Point comprises the following steps: step 1, the Access Point periodically sends out a multiple antenna mode set or subset supported by the Access Point (S101); step 2, the Station reports a multiple antenna mode set or subset supported by the Station or, reports a multiple antenna mode set or subset supported by both the Station and the Access Point to the Access Point (S105); step 3, a multiple antenna mode is chosen from a multiple antenna mode set or subset supported by both the Station and the Access Point for communicating (S110). As a result, the Station and the Access Point can communicate in a reliable or high-speed antenna mode supported by both sending and receiving sides, and thereby the error frame rate is reduced, and the network throughput is increased.