| 摘要 |
Portable devices like mobile phones, PDA's, notebook computers, portable media players (PMP) can communicate using protocols like Bluetooth (rtm) and Wireless USB. These protocols require an initialising exchange to set up communication known as pairing, often involving authentication and the exchange of encryption keys. This pairing often occurs over out of band (OOB) channels that differ from the main wireless channel. Examples of OOB channels are infra-red (IR), inductive near field communication (NFC), wires/cables, memory cards and so forth. As devices become more complex a multiplicity of these channels may be available on each one. The invention proposes automatically sending pairing data over multiple, preferably all, channels in response to some stimulus initiating pairing. This avoids the user hassle involved in selecting an OOB channel (eg. from a list). |
