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WL18xxMOD in connected idle mode

Yourij Bosco1
Intellectual 410 points
Other Parts Discussed in Thread: WL1805MOD, WL1835MOD, WL1801MOD, WL1831MOD

Hi!

There is an interesting  feature line in the WL1801MOD, WL1805MOD, WL1831MOD, WL1835MOD datasheet that looks as it shown at the page 1 screenshot (marked with the red oval):

5756.wl1831mod_page1.pdf

The question is what is this mode?

Does it mean the chip stays connected while the transceiver is idle?

And what about an AP? How long this state can last before the AP disconnects a client?

Thanks!

  • 0
    TI__Guru* 85400 points

    Hi,

    Idle Connection means Connected to AP without any traffic (just receive beacons and go to sleep)

    For AP mode you can not work the same, as the AP must be awake to hear Probes or Data at any time, while STA in PS can sleep until decide to be awake.

    Regards,
    Gigi Joseph.

  • 0 in reply to Joseph Gigi
    Intellectual 410 points

    So, if the WL1835MOD received the beacon it could switches to a Bluetooth operation and do something before the next beacon appeared without any influence to an AP connection?

  • 0 in reply to Yourij Bosco1
    TI__Guru* 85400 points

    No, the Beacon frame from the AP will indicate if there is a data pending for the STA. If there is no data, it will go back to sleep, waking up for the next beacon (after the beacon interval). If there is data, the STA will process it.

    Regards,
    Gigi Joseph.

  • 0 in reply to Joseph Gigi
    Intellectual 410 points

    OK.

    Let me ask one more question.

    When I wrote this post I believed that I understoond how WiFi and BT coexisted in WL18xxMOD. Now I see I don't know it at all.

    Could you tell me where I can find the base information about the coexistence. What documents should I read at first?

    There is a chipset application (Paras Khara, Adnan Nishat "Complete solutions for next-generation wireless connected audio" ) that could stream audio via WiFi connection and receive control command via BT. I need something like this, but I can't find the base technical document where one can find a process algorithm.

  • 0 in reply to Yourij Bosco1
    TI__Guru* 85400 points

    Hi,

    Coexistance between BT/WLAN is time sharing based (on Shared Antenna solution) according to traffic priority. So your usecase should be fine.

    Regards,
    Gigi Joseph.