MASTER REFERENCE FOR BASE STATION NETWORK INTERFACE SOURCED FROM DISTRIBUTED ANTENNA SYSTEM

摘要

A distributed antenna system (DAS) includes: first base station network interface unit that receives first downlink signals from first external device and converts them into first downlink data stream; second base station network interface unit that receives second downlink signals from second external device and them into second downlink data stream; first remote antenna unit communicatively coupled to first base station network interface unit that receives at least one of first downlink data stream and first downlink signal derived from first downlink data stream. First remote antenna unit has first radio frequency converter configured to convert at least one of first downlink data stream and first downlink signal derived from first downlink data stream into first radio frequency band signal and first radio frequency antenna that transmits first radio frequency band signal to first subscriber unit. DAS is configured to transmit a master reference clock to the first external device.

主权项

1. A distributed antenna system comprising:
a first base station network interface unit configured to receive first downlink signals from a first external device external to the distributed antenna system and to convert the first downlink signals into a first downlink data stream; a second base station network interface unit configured to receive second downlink signals from a second external device external to the distributed antenna system and to convert the second downlink signals into a second downlink data stream; a first remote antenna unit communicatively coupled to the first base station network interface unit and configured to receive at least one of the first downlink data stream from the first base station network interface unit and a first downlink signal derived from the first downlink data stream; the first remote antenna unit having a first radio frequency converter configured to convert at least one of the first downlink data stream and the first downlink signal derived from the first downlink data stream into a first radio frequency band signal and a first radio frequency antenna configured to transmit the first radio frequency band signal to a first subscriber unit; and wherein the distributed antenna system is configured to transmit a master reference clock to the first external device.