Electronic horizon for ADAS function

A method, performed at least by a server or a part thereof, the method comprising:

• obtaining, from a remote mobile device, an indication of a trajectory of a mobile device;
• constructing an electronic horizon from map data specifically for enabling the mobile device to provide or for supporting the mobile device in providing one or more advanced driver assistance systems (ADAS) functions comprising at least an intelligent speed assistance function that prevents the mobile device from exceeding a speed limit identified based on the electronic horizon, wherein the electronic horizon comprises electronic horizon data for the one or more ADAS functions of the mobile device, wherein the electronic horizon data covers one or more potential paths predicted to be taken by the mobile device based on the indication of the trajectory;
• and
• providing, to the mobile device, the electronic horizon for performing, by the mobile device, at least one of the one or more ADAS functions at least partially based on the provided electronic horizon data.

An apparatus comprising at least one processor and at least one memory including computer program code, the at least one memory and the computer program code configured to, with the at least one processor, cause an apparatus at least to perform:

• providing an indication of a trajectory of a mobile device to a remote server;
• obtaining, from the remote server, an electronic horizon comprising electronic horizon data for one or more advanced driver assistance systems (ADAS) functions of the mobile device comprising at least an intelligent speed assistance function, wherein the electronic horizon has been constructed from map data by the server to enable the mobile device to perform the one or more ADAS functions, wherein the electronic horizon covers one or more potential paths predicted to be taken by the mobile device based on the indication of the trajectory;
• and
• performing at least one of the following:
• causing performance, by the mobile device, of at least one of the one or more ADAS functions by identifying a speed limit that the mobile device is recommended not to exceed based at least in part on the electronic horizon, or
• performing at least one of the one or more ADAS functions by causing an action that prevents the mobile device from exceeding the speed limit based at least in part on the electronic horizon.