RX-TX TIME DIFFERENCE GENERATION, MEASUREMENT AND REPORTING WITH NEIGHBORING BASE STATIONS

Systems and methods for positioning in a cellular communications system are disclosed. A method performed by a first base station (BS) includes receiving a signal transmitted by a second BS and estimating a Time of Arrival (TOA) of the received signal at the first BS according to a clock of the first BS. The method further includes determining a delta value that is or is a function of a time between the TOA of the received signal at the first BS according to the clock and a time reference at the first BS and either (a) providing the delta value to a positioning estimation entity within the communications system or (b) using the delta value at the first BS to reduce a time synchronization error between the first BS and the second BS, or (c) passing the delta value to a User Equipment.