Wireless Access Point Capability Parameter Announcement
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Solution Overview
Problem
In wireless communications, there is a need to efficiently execute operations between access points (APs) and stations (STAs) with differing capabilities, particularly when APs have greater bandwidth and spatial stream support than associated STAs, requiring effective announcement and adaptation of capability parameters across different communication protocols such as Extremely High Throughput (EHT), High Efficiency (HE), and Very High Throughput (VHT) protocols.
Innovation Solution
A method and apparatus for wireless operations involve announcing capability parameters, including modulation and coding schemes, number of spatial streams, and bandwidth, from a first wireless device operating under an EHT protocol to a second device operating under a HE or VHT protocol, ensuring the second device operates within its maximum supported capabilities, using elements like EHT Operating and Capabilities Elements to facilitate efficient communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If an AP with greater bandwidth capability operates using a first communication protocol (EHT), then the bandwidth capability and data throughput are improved, but compatibility with associated STAs operating under second communication protocols (HE/VHT) with narrower bandwidth capabilities deteriorates
Solution Approach 1:
The patent applies parameter changes by dynamically adjusting capability parameters (MCS, NSS, NSTS, CW, bandwidth) based on the communication protocol being used. The AP MLD announces different capability parameter sets for different protocols (EHT vs HE/VHT), allowing it to operate at maximum EHT capabilities when using EHT protocol while maintaining compatibility with HE/VHT STAs by announcing appropriate HE/VHT capability parameters when those protocols are detected
Solution Approach 2:
The patent implements dynamics by making the announced capability parameters changeable based on the detected communication protocol. The AP MLD can dynamically switch between announcing EHT capability parameters and HE/VHT capability parameters depending on which protocol the associated STA is using, enabling flexible adaptation to different protocol requirements while maintaining optimal performance
2Productivity
If an AP MLD announces capability parameters according to EHT protocol to maximize bandwidth support, then the maximum supported bandwidth is improved, but the ability to support associated STAs with narrower bandwidth capabilities (HE/VHT protocols) deteriorates
Solution Approach 1:
The patent applies parameter changes by announcing different capability parameter values for different protocols. When an EHT-capable STA is associated, the AP MLD announces EHT capability parameters including higher bandwidth capabilities (up to 320 MHz). When HE or VHT STAs are associated, the AP MLD announces corresponding HE/VHT capability parameters with appropriate bandwidth limits for those protocols, ensuring each STA operates within its supported bandwidth while the AP maintains maximum capability
3Productivity
If the first wireless device operates with higher MCS and NSS capabilities under EHT protocol, then the data throughput is improved, but the compatibility with second wireless devices operating under HE/VHT protocols with lower MCS and NSS support deteriorates
Solution Approach 1:
The patent applies parameter changes by announcing different MCS and NSS capability parameters for different protocols. For EHT protocol, the AP MLD announces higher MCS values (up to MCS 11 or 13) and higher NSS values (up to 16 spatial streams). For HE/VHT protocols, it announces corresponding lower MCS and NSS values that those protocols support, allowing each device to operate at optimal throughput for its protocol while maintaining compatibility
Data Source
AI summary
Embodiments of a method and an apparatus for wireless operations are disclosed. In an embodiment, a method for wireless operations involves announcing, by a first wireless device to a second wireless device, capability parameters, wherein the first wireless device operates according to a first communication protocol and has a first bandwidth capability, and wherein the first wireless device operates according to a second communication protocol and has a second bandwidth capability that is narrower than the first bandwidth capability, receiving, at the second wireless device, the capability parameters announced by the first wireless device, and operating the second wireless device according to the capability parameters announced by the first wireless device.