Currently only a connection between two devices at the same time is supported. there are rumors that there will be a network of BLEs shortly.
Currently PSoC 4/ PRoC BLE devices won't support multiple connections at a time.
Upcoming PSoC 6 BLE will be having this capability.
Thank you about your answers. Is a dongle with this capability in project on the same time than PSoC 6 BLE or not ? I'm interested by a master drivable by a computer here.
The hardware itself (USB Dongle) is limited to 1 RF connection at a time, and hence can only be connected to one slave device at a time.
The software is merely written to reflect that, and thus only handles having one connection at a time as well, but once the PSoC 6 comes out, I'm sure there will be support for multiple connections simultaneously.
Thank you about your answer, I will wait this PSoC 6 comes out, hopefully in the next weeks.