Devices and methods for establishing an ad hoc peer-to-peer network

• US 10,582,555 B2
• Filed: 05/04/2018
• Issued: 03/03/2020
• Est. Priority Date: 12/22/2015
• Status: Active Grant

• Current Assignee: Motorola Mobility LLC (Lenovo Group Ltd.)
• Original Assignee: Motorola Mobility LLC (Lenovo Group Ltd.)
• Inventors: Chau, Seang Y
• Primary Examiner(s): Phunkulh, Bob A
• Application Number:
  US15/971,978
• Publication Number:
  US 20180255599A1
• Time in Patent Office: 669 Days
• Field of Search: None
• CPC Class Codes: H04W 12/04 Key management, e.g. using generic bootstrapping architecture [GBA]
• CPC Class Codes: H04W 28/021 in wireless networks with changing topologies, e.g. ad-hoc networks self-organizing networks H04W84/18
• CPC Class Codes: H04W 4/06 Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
• CPC Class Codes: H04W 4/08 User group management
• CPC Class Codes: H04W 4/80 Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
• CPC Class Codes: H04W 76/14 Direct-mode setup
• CPC Class Codes: H04W 76/15 Setup of multiple wireless link connections
• CPC Class Codes: H04W 76/16 Involving different core network technologies, e.g. a packet-switched [PS] bearer in combination with a circuit-switched [CS] bearer
• CPC Class Codes: H04W 8/005 Discovery of network devices, e.g. terminals
• CPC Class Codes: H04W 84/12 WLAN [Wireless Local Area Networks]
• CPC Class Codes: H04W 84/18 Self-organising networks, e.g. ad-hoc networks or sensor networks

Abstract

A node is operable to communicate in an ad hoc peer-to-peer network using a predefined communication protocol. The node includes a local area wireless communication circuit and one or more processors. The one or more processors can cause the local area wireless communication circuit to broadcast a local name of an electronic device using a discovery protocol of the predefined communication protocol. Upon receiving one or more responses from one or more remote devices, the one or more processors can change the local name to a new local name including at least one communication protocol parameter, and can cause the local area wireless communication circuit to rebroadcast the new local name using the discovery protocol to communicate the at least one communication protocol parameter to the one or more remote devices. This can continue until an ad hoc peer-to-peer network is established.

Claims

1. A method of establishing an ad hoc peer-to-peer network, the method comprising:

broadcasting, with a local area wireless communication circuit of an electronic device, a local name of the electronic device using a predefined device discovery protocol;

changing, with one or more processors operable with the local area wireless communication circuit, the local name to a new local name including at least one communication protocol parameter selected from a predefined plurality of communication protocol parameters required for communication in the ad hoc peer-to-peer network; and

rebroadcasting, with the local area wireless communication circuit, the new local name using the predefined device discovery protocol to communicate the at least one communication protocol parameter.

2. The method of claim 1, further comprising:

repeating;

the changing by substituting in the new local name at least another communication protocol parameter for the at least one communication protocol parameter; and

the rebroadcasting the new local name.

3. The method of claim 2, the repeating continuing until each communication protocol parameter of the predefined plurality of communication protocol parameters is communicated between the electronic device and one or more remote electronic devices.

4. The method of claim 1, the predefined device discovery protocol comprising a Bluetooth device discovery protocol.

5. The method of claim 1, further comprising:

receiving, with the local area wireless communication circuit, a remote device local name of a remote electronic device using the predefined device discovery protocol, the remote device local name comprising at least another communication protocol parameter; and

selecting, with the one or more processors, a group leader of the ad hoc peer-to-peer network as a function of the at least one communication protocol parameter and the at least another communication protocol parameter.

6. The method of claim 1, the new local name comprising an indication of the local name and the at least one communication protocol parameter.

7. The method of claim 6, the indication of the local name and the at least one communication protocol parameter separated by a key.

8. The method of claim 1, further comprising negotiating roles of the electronic device and one or more remote electronic devices in the ad hoc peer-to-peer network by:

repeating the changing, substituting in the new local name at least another communication protocol parameter for the at least one communication protocol parameter; and

repeating the rebroadcasting of the new local name.

9. The method of claim 1, further comprising negotiating a secure communication channel between the electronic device and a remote electronic device in the ad hoc peer-to-peer network by:

repeating the changing, substituting in the new local name at least another communication protocol parameter for the at least one communication protocol parameter; and

repeating the rebroadcasting of the new local name.

10. The method of claim 9, one communication protocol parameter of the predefined plurality of communication protocol parameters comprising a security key.

11. A node, operable to communicate in an ad hoc peer-to-peer network using a predefined communication protocol defined by a predefined plurality of communication protocol parameters, the node comprising:

a local area wireless communication circuit; and

one or more processors operable with the local area wireless communication circuit;

the one or more processors to;

cause the local area wireless communication circuit to broadcast a local name of an electronic device using a discovery protocol of the predefined communication protocol;

change the local name to a new local name including at least one communication protocol parameter selected from the predefined plurality of communication protocol parameters; and

cause the local area wireless communication circuit to rebroadcast the new local name using the discovery protocol to communicate the at least one communication protocol parameter.

12. The node of claim 11, the predefined communication protocol comprising a Wi-Fi communication protocol, the local name comprising a Service Set Identifier (SSID).

13. The node of claim 11, the one or more processors to execute the discovery protocol at an application layer.

14. The node of claim 11, the one or more processors further to:

receive, with the local area wireless communication circuit, a remote device local name of a remote electronic device using the discovery protocol, the remote device local name comprising at least another communication protocol parameter; and

select a group leader of the ad hoc peer-to-peer network as a function of the at least one communication protocol parameter and the at least another communication protocol parameter.

15. The node of claim 11, the one or more processors further to:

repeat changing the local name by substituting in the new local name at least another communication protocol parameter for the at least one communication protocol parameter; and

also repeat the causing of rebroadcasting of the new local name to perform an authentication and handshaking operation to establish communication with at least one remote device in the ad hoc peer-to-peer network.

16. The node of claim 11, the new local name arranged in a predefined format comprising an indication of the local name and the at least one communication protocol parameter.

17. The node of claim 11, the ad hoc peer-to-peer network comprising a one-hop network.

18. A method of establishing an ad hoc peer-to-peer piconet, the method comprising:

broadcasting, with a local area wireless communication circuit of an electronic device, a local name of the electronic device in accordance with a device discovery communication protocol operating at an application layer in the electronic device;

changing, with one or more processors operable with the local area wireless communication circuit, the local name to include at least one communication protocol parameter selected from a plurality of communication protocol parameters required for communication in the ad hoc peer-to-peer piconet to form a new local name;

rebroadcasting, with the local area wireless communication circuit, the new local name at the application layer to communicate the at least one communication protocol parameter.

19. The method of claim 18, further comprising:

receiving, with the local area wireless communication circuit, a remote device local name of a remote electronic device using the device discovery communication protocol, the remote device local name comprising at least another communication protocol parameter; and

selecting, with the one or more processors, a group leader of the ad hoc peer-to-peer piconet as a function of the at least one communication protocol parameter and the at least another communication protocol parameter.

20. The method of claim 18, further comprising negotiating roles of the electronic device and one or more remote electronic devices in the ad hoc peer-to-peer piconet by:

repeating the changing, substituting in the new local name at least another communication protocol parameter for the at least one communication protocol parameter; and

repeating the rebroadcasting of the new local name.