US Patent 10051684 Transfer of uncompensated barometric pressure information

Techniques for providing uncompensated barometric pressure (UBP) to a Public Safety Answering Point (PSAP) are disclosed. An example of an apparatus for providing UBP between a user equipment (UE) and the PSAP includes a location server and a gateway. The location server is configured to receive an uncompensated barometric pressure (UBP) from the UE, generate a civic or a geographic location record containing the UBP, and provide the civic or geographic location record containing the UBP to the gateway. The gateway is configured to receive the civic or geographic location record containing the UBP from the location server and either transfer the civic location record containing the UBP to the PSAP or extract the UBP from the civic or geographic location record, and provide the UBP separately to the PSAP.