Multi-link Discovery Signaling for EHT WLAN Coexistence
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Solution Overview
Problem
Wireless local area networks (WLANs) face challenges in efficiently managing bandwidth and response times due to multiple devices sharing resources, with limitations from communication protocols and hardware bandwidth, especially when operating with both new and legacy protocols.
Innovation Solution
The proposed solution involves a radio architecture that integrates WLAN and Bluetooth functionality, using a front-end module, radio IC circuitry, and baseband processing circuitry to enable coexistence and efficient operation across various protocols, including Extremely High Throughput (EHT) standards, through multi-link discovery signaling and multi-band operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple devices share the same wireless resources, then network coverage and device connectivity are improved, but bandwidth availability and response times deteriorate due to resource contention
Solution Approach 1:
The patent segments the wireless network into multiple independent links operating on different frequency channels. Each link provides separate communication paths, allowing devices to simultaneously maintain connectivity across multiple channels without resource contention on a single channel, thereby preserving bandwidth availability while improving overall device connectivity
Solution Approach 2:
The patent introduces an additional dimensional resource - frequency diversity through multiple channels. By enabling devices to operate across multiple frequency dimensions simultaneously, the system increases total available bandwidth while maintaining comprehensive device connectivity, resolving the trade-off between coverage and bandwidth
2Ease of operation
If wireless devices operate with both newer protocols and legacy device protocols, then compatibility and ease of operation are improved, but device complexity and protocol management difficulty increase
Solution Approach 1:
The patent implements multi-functionality by enabling wireless devices to simultaneously support multiple protocol versions (legacy and newer protocols) within a single device architecture. This universal capability allows seamless interoperability across different protocol generations while managing complexity through unified device design that handles multiple protocols concurrently
3Productivity
If hardware bandwidth is increased to improve throughput, then data transmission capacity is improved, but device cost and manufacturing complexity increase
Solution Approach 1:
The patent combines multiple existing hardware components and frequency channels into a unified multi-link operation system. By merging resources that already exist in the device (multiple radios, multiple frequency capabilities) into coordinated multi-link operation, the system increases effective data transmission capacity without requiring additional hardware manufacturing, thus improving productivity while maintaining ease of manufacture
Data Source
AI summary
Embodiments of a multi-link access point (AP) device, station (STA) and method of communication are generally described herein. The multi-link AP device may comprise multiple APs. The multi-link AP device may encode a frame for transmission by one of the APs of the multi-link AP device. The multi-link AP device may encode the frame to include signaling to enable multi-link discovery of the APs of the multi-link AP device. The multi-link AP device may encode the signaling to include: a reduced neighbor report (RNR) element that identifies the APs of the multi-link AP device, and a multiple AP element. The multiple AP element may be configurable to include: common information for the APs of the multi-link AP device, and per-AP sub-elements that include per-AP information related to the APs of the multi-link AP device.