Method, network element and telecommunications system for generating security keys for radio channels using channel side information estimation

摘要

The invention consists of a method, network element and network arranged to generate a key usable, in a telecommunications network 1000, for:
i) encrypting data that is to be transmitted over a channel and/or
ii) for decrypting data received over a channel, said channel separating two network elements 10, 100 in said telecommunications network 1000 wherein said key is generated in response to at least one estimated property of said channel.