Popular location dependent services have serious performance deficiencies
Today’s mobile GNSS technology has significant reliability and accuracy limitations, because it depends on L1 signaling developed in the 1970s. L1 can’t cope with building and tree blockage. In urban areas, positioning can have 40-100 meters of error, placing users on the wrong side of the street, or even on the wrong block. Large position errors significantly degrade popular location dependent services such as rideshare, pedestrian navigation and 911 emergency calls. L1 signals are susceptible to lots of interference, have no error correction, and have low transmission power, limiting position availability, and making legacy L1 dependent receivers less reliable.