18264209. Mesh Network Range Extension and Reliability Enhancement Through Lower Order MIMO Spatial Streams simplified abstract (Google LLC)

Mesh Network Range Extension and Reliability Enhancement Through Lower Order MIMO Spatial Streams

Organization Name

Google LLC

Inventor(s)

Yu Wen of San Ramon CA (US)

Zhifeng Cai of Palo Alto CA (US)

Srinivasa Kumar Duvvuri of San Jose CA (US)

Raymond Reynolds Hayes of Los Gatos CA (US)

Kevin N. Hayes of Mountain View CA (US)

Der-Woei Wu of Mountain View CA (US)

Mesh Network Range Extension and Reliability Enhancement Through Lower Order MIMO Spatial Streams - A simplified explanation of the abstract

This abstract first appeared for US patent application 18264209 titled 'Mesh Network Range Extension and Reliability Enhancement Through Lower Order MIMO Spatial Streams

Simplified Explanation

The abstract describes improvements in range and reliability for wireless mesh networks implementing IEEE 802.11 networking technologies by reducing the number of spatial streams to a lower value at middle and far distance ranges using an optimized rate control algorithm. This trade-off results in a higher link budget, providing longer range and higher RF link reliability by utilizing spatial diversity of MIMO RF channels.

• Optimized rate control algorithm reduces spatial streams for longer range and higher link reliability.
• Utilizes N×N spatial diversity of MIMO RF channels to maximize link budget.
• Trade-off between throughput limit and link budget for improved range and reliability.

Potential Applications

The technology could be applied in:

• Rural areas with limited infrastructure for extended wireless coverage.
• Industrial settings requiring reliable wireless communication over long distances.

Problems Solved

The technology addresses:

• Limited range and reliability of wireless mesh networks.
• Challenges in maintaining connectivity over extended distances.

Benefits

The benefits of this technology include:

• Extended range for wireless communication.
• Improved reliability in challenging RF environments.

Potential Commercial Applications

This technology could be used in:

• Telecommunications for rural connectivity solutions.
• Industrial automation for reliable wireless communication.

Possible Prior Art

One possible prior art could be the use of MIMO technology in wireless networks to improve range and reliability.

How does the optimized rate control algorithm determine the ideal number of spatial streams for different distance ranges?

The algorithm's decision-making process in adjusting spatial streams based on distance ranges is not explicitly explained in the abstract. Further details on this aspect would be beneficial for a deeper understanding of the technology.

What specific factors contribute to the higher link budget achieved by using spatial diversity of MIMO RF channels?

While the abstract mentions the use of spatial diversity to maximize link budget, it does not delve into the specific factors or mechanisms that contribute to this outcome. Understanding these factors could provide insights into the technology's effectiveness.

Original Abstract Submitted

This document describes improvements in range and reliability for wireless mesh networks implementing IEEE 802.11 networking technologies. Reducing the number of spatial streams, N, to a lower value at middle and far distance ranges using an optimized rate control algorithm, preemptively trades off a lower throughput limit for a higher link budget. This higher link budget provides longer range and higher RF link reliability by using an N×N spatial diversity of MIMO RF channels for maximizing link budget instead of network throughput.