Patent ID: 8606873
Filing Date: 2013-12-10
Classification: H04L,H04W

Abstract:
1. A method of operating a first device to communicate identification information to a second device, comprising: receiving a signal from a third device, wherein the signal includes air interface timing information; deriving a first value based at least in part on the air interface timing information; computing a first identifier by hashing the derived first value with stored identification information stored in said first device, the computed first identifier for securing identification information communicated from the first device to the second device; transmitting said first identifier to the second device; receiving an additional signal; computing a second identifier from a second value derived from the received additional signal and said stored identification information to generate the second identifier, the computed second identifier for securing identification information communicated from the first device to the second device; and transmitting said second identifier to the second device, wherein said first and second values are time dependent values.