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The evolution of Wi-Fi performance and reliability

Get the best Wi-Fi 7 performance with the ultimate connectivity innovations

User demands are increasing:

  • High throughput applications
  • Low latency for VR, video calls, cloud gaming
  • Support many users in dense device environments

Wi-Fi 7 MRU in extreme high throughput Wi-Fi:

  • New multi-resource unit (MRU) can make connectivity more efficient
  • Enhances interference mitigation 
  • Increases OFDMA efficiency

High-throughput/low-latency use cases:

Wi-Fi 7 with MRU significantly reduces latency when there are multiple simultaneous users

Did you know?

In April 2020, the U.S. Federal Communications Commission (FCC) made the entire 1,200 MHz spectrum (5912-7125 MHz) available in the 6GHz band for unlicensed Wi-Fi use to help improve:

  • Capacity
  • Throughput
  • Interference mitigations

MRU supports deployment across 5GHz and 6GHz bands

To help connectivity across both 5GHz and 6GHz bands, preamble puncturing improves spectral efficiency by puncturing an overlapping portion of the spectrum channel. The static puncturing defined in Wi-Fi 7 enables the AP to control the punctured pattern for all STAs in the BSS.

This is an example of a 160MHz channel with the second 40MHz bandwidth punctured.

  1. The AP selects an MRU (40MHz-(unavailable)-40MHz-40MHz) for Downlink traffic.
  2. Then STA1 and STA2 shall only use this MRU, or the subset of this MRU, for uplink traffic.

Challenge

Interference problems can become more severe in scenarios such as device-to-device file transfer, 4K Wi-Fi display streaming, AR/VR applications, and many more. Static puncturing cannot mitigate the interference problems in these scenarios as the punctured pattern is not selected based on the information from STA.

MediaTek has developed NEW smart puncturing

MediaTek has designed a smart puncturing mechanism that is more flexible and effective at channel puncturing, enabling a significant enhancement to performance in scenarios with sources of multiple sources of local interference.

MediaTek smart puncturing improves throughput efficiency

User scenario: smart puncturing benefits applications such as device-to-device file transfer or streaming

This is an example of network topology with two STAs performing a device-to-device file transfer using 160MHz of bandwidth in the 5GHz band, and an STA connected to an AP using 40MHz in the 5GHz band, creating adjacent network interference.

Throughput gain with smart puncturing for device-to-device transfer

Reinforce smart puncturing with intelligent implicit puncturing

Challenge

Reinforce smart puncturing with intelligent implicit puncturing to learn the Transmission (TX) behavior from the peer STA in real-time.

A hidden node is a common problem in Wi-Fi networks that degrades throughput and is highly location-dependent.

Example of network topology with two STAs for P2P file transfer with BW160 in 5GHz, and an STA connected to an AP with 5GHz BW40 as adjacent network interference.

MediaTek Smart Puncturing Result

Use the best Wi-Fi 7 with the latest connectivity innovations from MediaTek

MediaTek’s unique innovations are ready to provide reliable, fast and always-connected Wi-Fi 7 solutions that go beyond all others with to deliver unmatched results, whatever the device, scenario or application.

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