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How to configure WL1837 as host AP with 5GHz 802.11a and 802.11n mode?

Pankil Shah
Expert 1040 points
Other Parts Discussed in Thread: WL1837

Hi,

I want to use WL1837 chip as Host AP with 5GHz frequency band.

To set the mode 802.11a, in hostapd.conf set hw_mode=a,put the channel number 149.

Any other configuration required to change for setting up 802.11a mode ? If yes then please tell me parameters to set with which values.

802.11n mode in 5GHz :
And for setting up 802.11n mode, set ieee80211n=1 in hostapd.conf.

For that can you please suggest me which more parameters needs to be set and with which value.

Channel number that will work in 802.11n 5GHz mode ?

 

Also please suggest more option that enhance the performance.

 

Thanks in advance for help.

  • 0
    TI__Guru* 85400 points
    Hi Pankil,

    I believe it is enough for 802.11a.
    For 11n channel number, it depends on the regulatory requirements.
    Also depending on whether you have ht_mode set as HT40+/- some channels will be available/not available.

    Please check the hostapd.conf file/wiki for more information.

    Regards,
    Gigi Joseph.
  • 0 in reply to Joseph Gigi
    Expert 1040 points

    Hi Joseph,

    Thanks for your quick response.

    I referred some link regarding hostapd config, I enabled ht_capab=[HT40+] , set channel 36, country_code=IN, hw_mode=a (as 802.11n will work on top of "a" mode for 5GHz)., set ieee80211d=1, ieee80211n=1.


    And I got the log for that hostap in other WL1837 chip board while scanning.


    Can you please check with below values that 802.11n mode on 5Ghz properly set or not?

    BSS 5c:31:3e:e1:d6:81(on wlan0) -- associated
            TSF: 8149814 usec (0d, 00:00:08)
            freq: 5180
            beacon interval: 100 TUs
            capability: ESS ShortPreamble (0x0021)
            signal: -72.00 dBm
            last seen: 160 ms ago
            Information elements from Probe Response frame:
            SSID: test
            Supported rates: 6.0* 9.0* 12.0* 18.0* 24.0* 36.0 48.0 54.0
            DS Parameter set: channel 36
            Country: IN     Environment: Indoor/Outdoor
                    Channels [36 - 48] @ 20 dBm
                    Channels [149 - 165] @ 20 dBm
            HT capabilities:
                    Capabilities: 0x0e
                            HT20/HT40
                            SM Power Save disabled
                            No RX STBC
                            Max AMSDU length: 3839 bytes
                            No DSSS/CCK HT40
                    Maximum RX AMPDU length 16383 bytes (exponent: 0x001)
                    Minimum RX AMPDU time spacing: 16 usec (0x07)
                    HT TX/RX MCS rate indexes supported: 0-7
            HT operation:
                     * primary channel: 36
                     * secondary channel offset: above
                     * STA channel width: any
                     * RIFS: 0
                     * HT protection: no
                     * non-GF present: 0
                     * OBSS non-GF present: 0
                     * dual beacon: 0
                     * dual CTS protection: 0
                     * STBC beacon: 0
                     * L-SIG TXOP Prot: 0
                     * PCO active: 0
                     * PCO phase: 0
            Extended capabilities: 6
            WMM:     * Parameter version 1
                     * u-APSD
                     * BE: CW 15-1023, AIFSN 3
                     * BK: CW 15-1023, AIFSN 7
                     * VI: CW 7-15, AIFSN 2, TXOP 2976 usec
                     * VO: CW 3-7, AIFSN 2, TXOP 1472 usec

  • 0 in reply to Pankil Shah
    TI__Guru* 85400 points
    Hi Pankil,

    Yes, it is...

    Regards,
    Gigi Joseph.
  • 0 in reply to Joseph Gigi
    Expert 1040 points

    Thanks Joseph for your support.

    Thanks a lot.