Terrestrial wireless positioning in licensed and unlicensed frequency bands

An apparatus for determining a distance from a user equipment (UE) to a base station, comprising:

• a transceiver of the UE configured to:
• transmit a first positioning reference signaling (PRS) signal to the base station at a first time, wherein the first PRS signal is received by the base station at a second time, and wherein the first time corresponds to the start of a first subframe of a cellular radio access technology (RAT);
• and
• receive a second PRS signal from the base station at a third time, wherein the second PRS signal is transmitted by the base station at a fourth time, and wherein the fourth time corresponds to the start of a second subframe of the cellular RAT;
• and
• at least one processor of the UE configured to:
• enable the distance to be determined based on the first time, the second time, the third time, and the fourth time.

A non-transitory computer-readable medium storing computer-executable instructions for determining a distance from a user equipment (UE) to a base station, the computer-executable instructions comprising:

• at least one instruction instructing the UE to transmit a first positioning reference signaling (PRS) signal to the base station at a first time, wherein the first PRS signal is received by the base station at a second time, and wherein the first time corresponds to the start of a first subframe of a cellular radio access technology (RAT);
• at least one instruction instructing the UE to receive a second PRS signal from the base station at a third time, wherein the second PRS signal is transmitted by the base station at a fourth time, and wherein the fourth time corresponds to the start of a second subframe of the cellular RAT;
• and
• at least one instruction instructing the UE to enable the distance to be determined based on the first time, the second time, the third time, and the fourth time.

An apparatus for determining a distance from a user equipment (UE) to a base station, comprising:

• a communication means of the UE configured to:
• transmit a first positioning reference signaling (PRS) signal to the base station at a first time, wherein the first PRS signal is received by the base station at a second time, and wherein the first time corresponds to the start of a first subframe of a cellular radio access technology (RAT);
• and
• receive a second PRS signal from the base station at a third time, wherein the second PRS signal is transmitted by the base station at a fourth time, and wherein the fourth time corresponds to the start of a second subframe of the cellular RAT;
• and
• a processing means of the UE configured to:
• enable the distance to be determined based on the first time, the second time, the third time, and the fourth time.