3 ms·
All of this above. The biggest contributing factor though is that the radio will be off for 99% or more of the time when not actively sending, in order to save
by ricw 2y ago
All of this above. The biggest contributing factor though is that the radio will be off for 99% or more of the time when not actively sending, in order to save energy. This means you also need to wait for that <1% beacon/listening window to connect. And it’s not unlikely that you get interference / a bad transmission just at that time, so double or triple the wait time.
Or in short: It’s caused by saving energy and interference.
- comboy 2y agoThis makes sense for idle devices, but say airpods know they have been opened (or other bluetooth headset can be actively listening for a few seconds after power up), and on the other device you explicitely click connect on already discovered divice. I also don't understand why these connections are not 1ms even for devices which were not paired previously.
- szundi 2y agoYou don’t press connect on the other device. You just put the AirPods in your ears and damm, good to go at once.
- cactusplant7374 2y agoI don’t mind using more energy. Are there any other implications for spamming a beacon?
- rcxdude 2y agoYou interfere with other devices, especially any others that have the same idea.
- jessriedel 2y agoYou can have a device listening only 1% of the time while only waiting a millisecond. Just listen for 10 microseconds and energy-save for 1 millisecond. Why aren’t they doing that?
- brookst 2y agoProbably back to the lowest common denominator of speed. 128 bytes at Bluetooth 1’s 1mbit speed is 1ms.