US Patent No. 10,193,599

NODE UNIT OF DISTRIBUTED ANTENNA SYSTEM


Patent No. 10,193,599
Issue Date January 29, 2019
Title Node Unit Of Distributed Antenna System
Inventorship Kwangnam Seo, Guri-si (KR)
Hyoungho Kim, Seoul (KR)
Doyoon Kim, Bucheon-si (KR)
Assignee SOLiD, INC., Seongnam-si (KR)

Claim of US Patent No. 10,193,599

1. A node unit of a distributed antenna system, comprising at least one processor and at least one memory to implement:a multiplexer configured to generate a single uplink signal by selectively outputting any one of m uplink signals received from m lower node units at an interval of a predetermined output time, where m is a positive integer greater than 1; and
a down-sampler configured to output a transmission uplink signal by converting a sampling rate of the single uplink signal to correspond to a sampling rate of any one of the m uplink signals,
wherein each of the m uplink signals is a discrete signal sampled in accordance with a predetermined sampling period, and the predetermined output time is set to be equal to or less than a time obtained by dividing the predetermined sampling period by the positive integer m.