Network assisted automatic disaster trigger to enable device-to-device (D2D) ad hoc communication
AssigneeNokia Solutions and Networks Oy
InventorRam Lakshmi Narayanan
Life of this patent
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Abstract
Systems, methods, apparatuses, and computer program products for automatically switching to D2D communication in a disaster situation is provided. One method includes receiving, by a user equipment, a list of base station sites comprising locations and geographical signal coverage of the base station sites and a list of Wi-Fi access points comprising locations and geographical signal coverage of the Wi-Fi access points. The method may also include creating at least one local database storing information received in the list of base station sites and the list of Wi-Fi access points.
Claims19
A method, comprising:
- receiving, by a user equipment, a list of base station sites comprising locations and geographical signal coverage of the base station sites and a list of Wi-Fi access points comprising locations and geographical signal coverage of the Wi-Fi access points;
- and
- creating at least one local database storing information received in the list of base station sites and the list of Wi-Fi access points;
- detecting, by the user equipment, an absence of network coverage;
- when the absence of network coverage is detected, searching the at least one local database for base station sites based on current spatial coordinates of the user equipment;
- and
- when the user equipment determines from the search of the at least one local database that there are base station sites that should be available and that the user equipment cannot connect to any of the base station sites, searching the at least one local database for possible Wi-Fi coverage based on the spatial coordinates of the user equipment.
An apparatus, comprising:
- at least one processor;
- and
- at least one memory comprising computer program code,
- the at least one memory and the computer program code configured, with the at least one processor, to cause the apparatus at least to
- receive a list of base station sites comprising locations and geographical signal coverage of the base station sites and a list of Wi-Fi access points comprising locations and geographical signal coverage of the Wi-Fi access points;
- create at least one local database storing information received in the list of base station sites and the list of Wi-Fi access points;
- detect an absence of network coverage;
- when the absence of network coverage is detected, search the at least one local database for base station sites based on current spatial coordinates of the apparatus;
- and
- when the apparatus determines from the search of the at least one local database that there are base station sites that should be available and that the apparatus cannot connect to any of the base station sites, the at least one memory and the computer program code are further configured, with the at least one processor, to cause the apparatus at least to search the at least one local database for possible Wi-Fi coverage based on the spatial coordinates of the apparatus.
Dependencies are inferred from the claim text.