| 摘要 |
<P>PROBLEM TO BE SOLVED: To meet a necessity of preparing a multiplex transmission channel such as a time-multiplex channel and a wavelength-multiplex channel according to the number of physical antennas between a signal processing device and the physical antenna, in a distributed antenna system. <P>SOLUTION: A first antenna network is composed of one part of antennas in the distributed antenna system, and has a physical antenna port for the antenna as an interface. A second antenna network is connected with a plurality of the first antenna networks, and has a logical antenna port as an interface for signal processing means which processes a signal transmitted/received to/from a wireless terminal. And the distributed antenna system has inter-network control means which controls a connection between the physical antenna port and the logical antenna port at a connection point between the first antenna network and the second antenna network. <P>COPYRIGHT: (C)2012,JPO&INPIT |
