Can you elaborate the procedure to use PI capture to estimate cable length between RE and REC? My understanding is the since PI capture provides the difference in frame offsets between the transmit CPRI frame and the received CPRI frame, it will be the combined delay of transmit and receive paths, plus the processing delay in the RE. If this processing delay (Toffset) is known, then we can subtract that from the PI offset. The remaining value is twice the cable delay. Is this calculation correct?
