US Patent 11449854 Establishing consent for cardless transactions using short-range transmission

A method for processing a cardless payment includes receiving, by a first mobile device, a signal from a second mobile device using a short-range wireless transmission protocol. A value for the received signal strength indication of the signal between the first mobile device and the second mobile device can be determined. The process can include determining that the first mobile device and the second mobile device are in proximity based on the received signal strength indication. Consent to enter into a payment transaction can be established upon a determination that the devices are in proximity to one another.