Method and apparatus for compensating for optical...

Details Method and apparatus for compensating for optical... Method and apparatus for compensating for optical...

2008-01-29

2008-01-29

Ho, Duc (Department: 2616)

Multiplex communications

Diagnostic testing

Loopback

C370S519000, C398S161000, C398S119000

Reexamination Certificate

active

07324457

ABSTRACT:
A method and apparatus are disclosed for compensating for optical transmission delays in a synchronous mobile communication system. A Base Station Transceiver Subsystem (BTS) includes a Main Unit (MU) for processing a mobile communication signal and a plurality of Remote Units (RUs) connected to the MU by Synchronous Digital Hierarchy (SDH) transmission, for performing radio processing for communication with a Mobile Station (MS). The method comprises the steps of sequentially forming a loop on an optical transmission line to each of the RUs for optical transmission delay compensation test between the MU and each of the RUs; once a loop for the optical transmission delay compensation test is formed, transmitting a test SDH frame to a corresponding RU, and measuring a delay time until the test SDH frame is fed back; and transmitting data to the corresponding RU after compensating the transmission time by the measured delay time.

REFERENCES:
patent: 6807178 (2004-10-01), Lemieux
patent: 7039067 (2006-05-01), Feinberg et al.

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