I am not entirely sure what kind of radio fuckery happens, but my phone (Oneplus 6 with LineageOS) can be connected to a 5 Ghz wifi network and have a 5 GHz hotspot open at the same time.
I am assuming the wifi chip has two (or more) somewhat independent frontends, since my home wifi and the phone hotspot are on two different 5 GHz frequencies.
Oh, I should clarify; this is more than send and receive - there’s some amount of network routing involved with being a Wi-Fi extender or relay or whatever.
What I probably meant to say is one antenna cannot send/receive simultaneously on more than one network.
But, yes, duh, thank you for calling me out on that one!
Well, technically that’s not a “hotspot”. ¯\_(ツ)_/¯ it’s a Wi-Fi extender.
I’ll have to disagree on that one, WiFi extenders extend an existing network, keeping the same network and DHCP is done by the original access point.
A hotspot creates a new network, and DHCP is handled by the hotspot, not the network on the WAN side.
And a poor Wi-Fi extender as well, since you halve your network bandwidth by using an extender with a single radio chip.
I’ve only seen that option on phones with two radios, it uses the 2.4GHz radio for one connection and the 5GHz radio for the other
I am not entirely sure what kind of radio fuckery happens, but my phone (Oneplus 6 with LineageOS) can be connected to a 5 Ghz wifi network and have a 5 GHz hotspot open at the same time.
I am assuming the wifi chip has two (or more) somewhat independent frontends, since my home wifi and the phone hotspot are on two different 5 GHz frequencies.
That’s kinda required. I doubt one antenna can simultaneously send and receive.
Anyway, there’s still only one controller, so your bandwidth is still halved.
I am not sure if the bandwidth is really limited by the controller, or by the modulation / signal-to-noise ratios in practical scenarios.
An antenna can absolutely send and receive at the same time. It’s called duplex .
Oh, I should clarify; this is more than send and receive - there’s some amount of network routing involved with being a Wi-Fi extender or relay or whatever.
What I probably meant to say is one antenna cannot send/receive simultaneously on more than one network.
But, yes, duh, thank you for calling me out on that one!