Patent ID: 8406178
Filing Date: 2013-03-26
Classification: H04B,H04J

Abstract:
1. A distributed base station, comprising a Base Band Unit (BBU), a Remote Radio Unit (RRU), and a first Optical Transport Network (OTN) processing unit and a second OTN processing unit, wherein the first OTN processing unit and the second OTN processing unit are located between the BBU and the RRU and connected through an OTN; wherein the first OTN processing unit is connected to one of the BBU and the RRU through a first interface between the BBU and the RRU; the second OTN processing unit is connected to the other of the BBU and the RRU through a second interface between the BBU and the RRU; the first OTN processing unit and the second OTN processing unit are configured to accomplish a communication connection between the BBU and the RRU; the first OTN processing unit is configured to receive at least one channel of interface signals of the distributed base station that are sent by the one of the BBU and RRU through the first interface, and encapsulate the interface signals of the distributed base station into OTN signal frames in a Generic Mapping Procedure (GMP) mapping scheme according to a rate of the interface signals of the distributed base station and transmit optical signals including the OTN signal frames by using the GMP mapping scheme through the OTN; the second OTN processing unit is configured to receive the optical signals sent through the OTN by the first OTN processing unit and perform optic-electro conversion, perform frame processing for the OTN signal frames in the GMP mapping scheme to obtain the interface signals of the distributed base station in the OTN signal frames, and send the interface signals of the distributed base station to the other of the BBU and RRU through the second interface.