Offline user device communications
US9736877B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 17, 2015 |
| Grant date | Aug 15, 2017 |
| Priority date | — |
| Expiry date | Feb 25, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W84/20
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Techniques described herein may be used to enable a user device (e.g., a smartphone, a tablet computer, etc.) to access network services without having to be connected to a network (e.g., a wireless telecommunications network). A first user device may communicate discovery packets in search of other user devices to which the first user device may connect. The first user device may identify a second user device (as a result of sending the discover packets). The first and second user devices may obtain configuration parameters (e.g., a communication channel allocation, encryption keys, synchronization information, etc.) and may establish a D2D connection based on the configuration parameters. The D2D connection may enable the first and second user devices to communicate with another as though the user devices were connected to a wireless telecommunications network (e.g., via telephone calls, video calls, simple messaging services (SMS) messages, instant messages, etc.).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.