Wi-Fi® + Bluetooth® + 802.15.4のトピックRe: How to extact the Channel state information (CSI) from NXP WiFi device (88W8977, 88W9098)?

How to extact the Channel state information (CSI) from NXP WiFi device (88W8977, 88W9098)?

isyu — Tue, 21 Nov 2023 21:40:32 GMT

Hello,

What I am inquiring about is channel state information (CSI), and I am asking if there is a document or method to check the channel state around the AP.

For example, there seems to be a site that has an open source implementation of a util that extracts CSI from Broadcom chipsets.

Note: https://github.com/seemoo-lab/nexmon_csi

We ask if there is a way to extract CSI in a similar form for the NXP chipset.

Regards/I.S

Re: How to extact the Channel state information (CSI) from NXP WiFi device (88W8977, 88W9098)?

ocourson — Tue, 21 Jun 2022 15:20:32 GMT

Dear @isyu

Could you please confirm which driver and firmware versions you are using ? This is quite important, as the supported feature may depend on these versions.

Regards,

Olivier

Re: How to extact the Channel state information (CSI) from NXP WiFi device (88W8977, 88W9098)?

isyu — Thu, 30 Jun 2022 04:27:57 GMT

Dear @ocourson

Kindly refer to the version information below

Wlan : SD-WLAN-SD-BT-8977-U16-MMC-W16.68.10.p237-16.26.10.p237-C4X16699_V2-GPL

(wlan: version = SD8977-68.16.237.p10-C4X16C699-GPL-(FP68))

Regards/I.S

Re: How to extact the Channel state information (CSI) from NXP WiFi device (88W8977, 88W9098)?

ocourson — Thu, 30 Jun 2022 07:39:32 GMT

Dear @isyu

Can you also confirm which SW version you are using for 88W9098 ?

Regards,

Olivier

Re: How to extact the Channel state information (CSI) from NXP WiFi device (88W8977, 88W9098)?

isyu — Thu, 30 Jun 2022 09:50:50 GMT

Dear @ocourson

Please check the 88W8977 firstly if possible.

88W9098: PCIE-WLAN-UART-BT-9098-U16-X86-17.68.1.p109.12-17.26.1.p109.12-MXM5X17312.P8_V0V1-GPL

Regards/I.S

Re: How to extact the Channel state information (CSI) from NXP WiFi device (88W8977, 88W9098)?

ocourson — Thu, 30 Jun 2022 15:45:20 GMT

Dear @isyu

88W8977 does not support CSI report

88W9098 FP68 release you are using support CSI.

Regards,

Olivier