Multiple antenna system

Details Multiple antenna system Multiple antenna system

2008-07-01

2008-07-01

Ha, Dac V (Department: 2611)

Pulse or digital communications

Synchronizers

Network synchronizing more than two stations

C375S267000

Reexamination Certificate

active

07394883

ABSTRACT:
A multiple-antenna system including a base station apparatus and a plurality of antenna apparatuses connected to the base station via optical cables is provided. The system comprises a first antenna apparatus and a second antenna apparatus connected to each other via an electric cable. Each of the first and second antenna apparatuses receives a reference pulse from the base station apparatus via the optical cables, and estimates a time difference between the received pulse and the reference pulse supplied from the counterpart antenna apparatus via the electric cable. At least one of the first and second antenna apparatuses adjusts signal transmission timing based on the time differences estimated by the first and second antenna apparatuses.

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European Search Report dated Jun. 8, 2005 Application # EP04020279.

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