Patent ID: 9019949
Filing Date: 2015-04-28
Classification: H04W

Abstract:
1. An adapter for connecting between a Radio Frequency RF unit and a base band processing unit in a base station system, the adapter comprising: a frame obtaining logic unit configured to obtain an uplink data frame based on a received radio frame; a frame synchronizing logic unit configured to manage a frame tag of the uplink data frame, wherein the frame synchronizing logic unit comprises: a downlink frame tag detector configured to detect a frame tag of a received downlink data frame; and an uplink frame tag manager coupled to the downlink frame tag detector and configured to add a corresponding frame tag to an uplink data frame based on the detected frame tag of the downlink data frame; and a time feedback logic unit configured to feed back to the base band processing unit an arrival time of a downlink data frame that is received from the base band processing unit.