CYW43455 Bandwidth support for 2.4GHz band

[FrYa_4831451]

Hi Infineon,

Does CYW43455 support to run 11n/11ac 40MHz bandwidth in 2.4GHz band?

Regards.

Frankie

[GauravS_31 · Accepted solution]

Yes, it is possible to use 40MHz bandwidth but it will depend on country code.

[FrYa_4831451]

Hi,

Thanks for your information, I checked CLM document and found the description about 40-MHz Bandwitdh in 2.4GHz Spectrum, and wifi will use a process called Channel Bonding to combine two BW20 channel to create one BW40 channel for 11n. 

Does the RF performances are same as 20MHz bandwidth? because I didn't see the performances of 40MHz/2.4GHz in datasheet?

Thanks.

Frankie

[Vivek_gunapati]

Hi @FrYa_4831451, Could you please let me know the test environment? is it tested in an open environment or in a shield room? Regards
Vivek.

[FrYa_4831451]

Hi Vivek,

It is tested in shield room, our customer found that the throughput can be over 100Mbps in 2.4GHz band, but we don't know what blob file they used, it should be the default blob file that combined in FMAC driver.

Can we check the 2.4GHz channel bandwidth setting thru wl command? what should we see if the 2.4GHz HT40 is enable?

Regards.

Frankie

[Vivek_gunapati]

Hi @FrYa_4831451 , 

If 43455 is set as STA and associated to an AP, you could check the bandwidth by running the command "sudo wl status"

Regards
Vivek