# Robust location subsystem APIs Source: [https://docs.qualcomm.com/doc/80-PK177-134/topic/robust_location_subsystem_apis.html](https://docs.qualcomm.com/doc/80-PK177-134/topic/robust_location_subsystem_apis.html) - **[Constructor](https://docs.qualcomm.com/doc/80-PK177-134/topic/robust_location_creator.html)** Creates a RLManager instance. - **[requestLocationUpdates](https://docs.qualcomm.com/doc/80-PK177-134/topic/robust_request_location_updates.html)** Starts a GNSS positioning session and enables the robust location module. - **[removeLocationUpdates](https://docs.qualcomm.com/doc/80-PK177-134/topic/robust_remove_location_updates.html)** Stops the ongoing GNSS location session and disables the robust location module if no other session is ongoing. **Parent Topic:** [Robust location](https://docs.qualcomm.com/doc/80-PK177-134/topic/robust_location.html) Last Published: Nov 14, 2024 [Previous Topic Robust location](https://docs.qualcomm.com/bundle/publicresource/80-PK177-134/topics/robust_location.md) [Next Topic Constructor](https://docs.qualcomm.com/bundle/publicresource/80-PK177-134/topics/robust_location_creator.md)