Patent ID: 11923905
Assignee: COMBA NETWORK SYSTEMS COMPANY LIMITED
Field: Telecommunications (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 10:
11. The distributed antenna system according to claim 10, wherein: the access unit includes a second optical transceiver module, the second baseband processing module, the second signal conversion module and a radio frequency channel module successively connected;
the second optical transceiver module is configured to perform optical signal interaction with the digital-analog expansion unit;
the second baseband processing module is configured to perform baseband processing on a received signal and then output the signal;
the second signal conversion module is configured to perform digital radio frequency signal interaction with the second baseband processing module and perform analog radio frequency signal interaction with the radio frequency channel module; and
the radio frequency channel module is configured to perform analog radio frequency signal interaction with the RRU and configured to perform analog radio frequency signal processing.