![]() Unfortunately, many countries do have regulations that allow certain (or all) 5GHz channels only indoors - in those cases, the access point can be set up to utilize it but WiFi Direct cannot. But generally, both sides will back off a random amount and retransmit, and the loss is less than the loss of multi-channel concurrency). This way, the phone doesn't have to timeshare (although it does have the side effect of colliding with messages from the access point. When regulations allow, we will attempt to start the WiFi Direct group on the same channel as the access point. ![]() Nearby Share tries to avoid this in a few ways. If these messages are less important, they may be resent until successfully received, but it will lower throughput for the transfer such that even 5GHz WiFi can look to be as slow as Bluetooth. If these messages are important, such as the authentication frames when connecting over WiFi Direct, then the connection will fail. If all 3 want to be on different channels, you will miss messages - it's a guarantee. The same radio is used for Bluetooth, p2p WiFi, and your normal access point connection and it must be time-shared accordingly. This upgrade can fail for a multitude of reasons. Note that urls and very small files will immediately send over Bluetooth. Even after falling back to Bluetooth, the devices will continue to attempt to upgrade to WiFi in the background, but some failures are unrecoverable and the file will fully send over Bluetooth. A grace period of 10sec is given for that upgrade before fallback mechanisms kick in and the file is sent over Bluetooth as a last resort. Nearby Share will always attempt to upgrade to WiFi before sending files larger than 1MB. Is it meant for handshaking purposes in Web RTC? ![]() I'm really curious to know why is an internet connection required to transfer files when Nearby Share is meant for file transfer without Internet. There are three modes: Data, Wifi Only and Without Internet. I'm also curious to know the various modes of file transfer present in Nearby share. So if the files are transferred via bluetooth there is no point in using Nearby Share. The sole purpose of Nearby Share itself is to achieve fast file transfer with wifi direct and without internet. So why does a built-in functionality like Nearby Share should use bluetooth. A lot of third party apps including Google Files use wifi direct to transfer the files. I'm curious to know why should the files be transferred via bluetooth when it can be transferred via wifi direct. But later I realized that the files are itself transferred via bluetooth. Initially I thought Bluetooth is used only for handshaking purposes. ![]() Sometimes it is not at all handy to transfer files that are more than 100 MB. Nearby Share sometimes uses bluetooth to transfer the files because of which it is very slow. ![]()
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