Patent ID: 8391493
Filing Date: 2013-03-05
Classification: H04L

Abstract:
1. A computer-based method comprising at least: generating a plurality of random cryptographic keys to be associated with a plurality of client devices; for a time slot of a plurality of time slots, at least one of (i) randomly selecting a subset of random cryptographic keys wherein the random cryptographic keys are probabilistically generated, or (ii) randomly selecting a subset of a number of subsets of random cryptograph key wherein the number of subsets that contain particular random cryptographic keys is probabilistically controlled; assigning the selected subset of random cryptographic keys for said time slot to at least one said client device, said time slot at least partially identifying a control channel; sending the random cryptographic keys in the selected subset to the at least one client device; sending at least one function to the at least one client device, wherein the function is for locating at least one control channel within a wireless communications network; and computing at least one location of at least one control channel using the at least one function and using at least one of the random cryptographic keys in the selected subset as the input to the at least one function.