Positioning over LTE (without use GPS) using BG96

Hi all!
We are working on a project where we need get the global positioning of the Device that uses the BG96 LTE Module. Currently, we are using the a GPS antenna to get the coordinates outdoor, but we need get the coordinate also indoor or in places where the satelite signal is loss. We has investigated about the Queclocator, but we would like to know if there ara any alternatives to Queclocator.