Common Configuration.yaml Nav stack help [closed]

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I am in the process of configuring the navigation stack and for the common configuration yaml file, i don't exactly know what i should put for the frame name of the laser scanner. I am currently using the sick_tim310 laser range finder. Contacted the guys who made the driver for ros and they said to come here.

-------------------------------- common_configuration.yaml ----------------------

obstacle_range: 2.5
raytrace_range: 3.0
footprint: [[x0, y0], [x1, y1], ... [xn, yn]]
#robot_radius: ir_of_robot
inflation_radius: 0.55

observation_sources: laser_scan_sensor point_cloud_sensor

laser_scan_sensor: {sensor_frame: FRAME_NAME, data_type: LaserScan, topic: topic_name, marking: true, clearing: true}

point_cloud_sensor: {sensor_frame: frame_name, data_type: PointCloud, topic: topic_name, marking: true, clearing: true}

would the FRAME_NAME be sick_tim310 ? this is the only thing i could imagine it to be. I looked if in the source there was anything specifying the frame name, and the only thing i found was a published frame id that was set to the message header. I don't believe that is what i am looking for.

from my understanding and previous encounterments (for example in setting up the transform) the [child] frame_id i specified for our laser relative to the robots center [base_link] "base_laser" I'm a little confused still by the difference between the frame_id and frame_name.

EDIT: If you are using the sick_tim3xx ros package, the then sensor_frame is laser. If you are using a different laser scanner, just go look through the code of the package, and where ever the node is assigned values to the sensor_msgs/LaserScan message, look for what is being assigned to laser.header.frame_id, and whatever is set there (say 'laser'), then put {sensor_frame: laser, .....} in the common_configuration.yaml file.