Methods and systems and secure connections for joining wireless networks

1. A method of secure data transfer in a communication system, the method comprising:

connecting a sink device to a gateway of a cellular network via at least a first wireless link, wherein the first wireless link is a cellular link, wherein the gateway is external to a core network, and wherein the sink device communicates with the core network via at least the gateway;

connecting a wireless device to the sink device via at least a second wireless link;

encrypting, by the gateway, data to generate encrypted data; and

transmitting the encrypted data from the gateway to the wireless device via at least the first wireless link and the second wireless link, wherein the wireless device is configured to decrypt the encrypted data.

2. The method of claim 1 , further comprising generating, by the wireless device, decrypted data by at least decrypting the encrypted data.

3. The method of claim 1 , wherein the wireless device is a user equipment.

4. The method of claim 1 , further comprising:

receiving, by the gateway, second encrypted data from the wireless device via at least the second wireless link and the first wireless link, wherein the second encrypted data is encrypted by the wireless device; and

generating, by the gateway, second decrypted data by at least decrypting the second encrypted data.

5. The method of claim 4 , further comprising sending, by the gateway, the second decrypted data to the core network.

6. The method of claim 5 , further comprising receiving the second decrypted data at a second gateway included in the core network.

7. The method of claim 1 , wherein the sink device is non-portable.

8. The method of claim 1 , wherein the second wireless link is cellular.

9. The method of claim 1 , wherein a cellular base station is coupled between the sink device and the gateway.

10. A communication system with secure data transfer, the communication system comprising:

a sink device; and

a gateway configured to communicate with the sink device via at least a first wireless link, wherein the first wireless link is a cellular link, wherein the sink device is configured to communicate with a core network via at least the gateway, and wherein the gateway is external to the core network;

wherein the sink device is configured to communicate with a wireless device via at least a second wireless link; and

wherein the gateway is further configured to encrypt data to generate encrypted data, and to cause transmission of the encrypted data from the gateway to the wireless device via at least the first wireless link and the second wireless link.

11. The communication system of claim 10 , wherein the wireless device is a user equipment.

12. The communication system of claim 10 , wherein the gateway is further configured to:

receive second encrypted data from the wireless device via at least the second wireless link and the first wireless link, wherein the second encrypted data is encrypted by the wireless device; and

generate second decrypted data by at least decrypting the second encrypted data.

13. The communication system of claim 12 , wherein the gateway is configured to send the second decrypted data to the core network.

14. The communication system of claim 13 , further comprising a second gateway included in the core network, the second gateway configured to receive the second decrypted data.

15. The communication system of claim 10 , wherein the sink device is non-portable.

16. The communication system of claim 10 , wherein the second wireless link is cellular.

17. A method of secure data transfer in a communication system, the method comprising:

connecting a wireless device to a sink device via at least a first wireless link;

establishing a security tunnel between the wireless device and a gateway through at least the sink device and a cellular base station, wherein the sink device is connected to the cellular base station via at least a second wireless link, wherein the second wireless link is a cellular link;

encrypting, by the gateway, data to generate encrypted data; and

transmitting the encrypted data from the gateway to the wireless device over the security tunnel, wherein the wireless device is configured to decrypt the encrypted data.

18. The method of claim 17 , further comprising generating, by the wireless device, decrypted data by at least decrypting the encrypted data.

19. The method of claim 17 , wherein the wireless device is a user equipment.

20. The method of claim 17 , further comprising:

receiving, by the gateway, second encrypted data from the wireless device over the security tunnel, wherein the second encrypted data is encrypted by the wireless device; and

generating, by the gateway, second decrypted data by at least decrypting the second encrypted data.

21. The method of claim 17 , wherein the establishing the security tunnel is based on a key assigned by one of a cellular network, a cellular operator, an end-user, or a certificate authority.

22. The method of claim 17 , wherein the security tunnel is an Internet protocol security (IPSec) tunnel.

23. The method of claim 17 , wherein the sink device is non-portable.

24. The method of claim 17 , wherein the first wireless link is cellular.

25. A communication system with secure data transfer, the communication system comprising:

a sink device configured to communicate with a wireless device via at least a first wireless link;

a cellular base station configured to communicate with the sink device via at least a second wireless link, wherein the second wireless link is a cellular link; and

a gateway configured to encrypt data to generate encrypted data, and to transmit the encrypted data from the gateway to the wireless device over a security tunnel, wherein the security tunnel is between the gateway and the wireless device through at least the sink device and the cellular base station, and wherein the wireless device is configured to decrypt the encrypted data.

26. The communication system of claim 25 , wherein the gateway is configured to receive second encrypted data from the wireless device over the security tunnel, and to generate second decrypted data by at least decrypting the second encrypted data.

27. The communication system of claim 25 , wherein the communication system is configured to establish the security tunnel based on a key assigned by one of a cellular network, a cellular operator, an end-user, or a certificate authority.

28. The communication system of claim 25 , wherein the security tunnel is an Internet protocol security (IPSec) tunnel.

29. The communication system of claim 25 , wherein the sink device is non-portable.

30. The communication system of claim 25 , wherein the first wireless link is a cellular link.