openwrt / openwrt/mt76

Will there be beamforming support added to the wireless driver for mt7622 in the future?

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Dominant language
C
Stars
888
Forks
436
PR merge metrics
No merged PRs in 30d

Description

As mentioned in the title, I am using the latest version of the mt76 driver. When tested with 256qam+40Mhz+2x2mimo, my phone and the Redmi AX6S router negotiate a link speed of 400Mbps, which is consistent with the vendor-provided firmware. However, there is still a significant gap in the actual measured throughput and stability. The throughput differs by a factor of two, with the vendor's official firmware achieving a downlink speed of 250M, while OpenWrt can only measure around 100M. I suspect that this is caused by the mt76 driver not enabling support for beamforming. As we all know, the mt7622b integrates the mt7615n wireless chip, which supports beamforming technology. I have checked the historical issues of mt76, and there was one raised in 2022 stating that there was no issue with the signal strength of mt7615, and the issue was closed. However, I would like to point out that the actual internet speed is still significantly affected.
https://github.com/openwrt/mt76/issues/657
So, will mt76 be able to address this issue in the future?

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First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by reviewing the mt76 driver support for mt7622 and its integrated mt7615 wireless chip, then read the linked issue #657 for prior context. Compare the reported OpenWrt and vendor-firmware throughput and stability results. The issue does not define a concrete entry point, test, or acceptance criteria for beamforming support.

Written by the indexing model from the issue text.

Assessment

Tech stack
c
Domain
networking
Issue type
Feature
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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