Multiplex communications – Network configuration determination
Reexamination Certificate
1998-02-26
2001-04-03
Vincent, David R. (Department: 2661)
Multiplex communications
Network configuration determination
C710S108000, C710S117000, C370S241000
Reexamination Certificate
active
06212170
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a CDMA (Code Division Multiple Access) base station controller (BSC), and more particularly to a method for managing status and dual information of a clock distributor for use in a base station controller.
2. Description of the Related Art
A CDMA base station controller includes communication equipment, which should be synchronized with a reference clock received from a satellite. For example, such communication equipment are a link device between a base station controller BSC and a mobile switching center MSC, a link device between the base station controller BSC and a base station transceiver BTS, and a vocoder. A clock distributer CKD generates and distributes a stable clock signal to such equipment.
Referring to
FIG. 1
, the clock distributor CKD includes a pair of global positioning systems GPS (A) and (B) for receiving signals from the satellite, two pairs of system clock generator assemblies SKGA for generating various kinds of system clocks according to the reference clock, and twelve pairs of system clock distributor assemblies SKDA for distributing the system clocks into a plurality of clock sources. The clock distributor is commonly formed into a board.
Such clock distributors CKD operate in pairs, and a status of the clock distributor CKD is managed by an alarm control interface processor ACP. The alarm control interface processor ACP detects a failure of respective boards in the clock distributor CKD, to manage the status of the clock distributor CKD. However, the prior art alarm control interface processor ACP can only manage an installation/uninstallation status and a normal/abnormal status of the clock distributor CKD. That is, the alarm control interface processor ACP may not properly manage the status of the respective dual boards in the clock distributor CKD. Thus, it is desirable to be able to manage the status (operation/waiting status) of the respective sides, and report to an operator the proper information when the clock distributor CKD is switched due to an abnormality of an operation party.
SUMMARY OF THE INVENTION
It is therefore an object of the present invention to provide a method for managing status and dual information of a clock distributor in a base station controller.
It is another object of the present invention to provide a method for notifying an operator as to the status and dual management information of respective sides of a clock distributor in a base station controller.
It is still another object of the present invention to provide a method for managing dual information of respective boards in a clock distributor by periodically scanning status registers of the boards.
According to an aspect of the present invention, a method for managing status and dual information of respective boards in a clock distributor for use in a CDMA base station controller includes the steps of forming a telephone device-bus TD-bus communication path and an address map for the TD-bus communication, so as to manage the status and dual information of the respective boards in the clock distributor; periodically checking installation/uninstallation, normality/abnormality, and dual status of the respective boards in the clock distributor through the TD-bus communication using the address map; and reporting changed status information to an upper board.
REFERENCES:
patent: 5091904 (1992-02-01), Back et al.
patent: 5708657 (1998-01-01), Hong et al.
patent: 5887248 (1999-03-01), Ahn et al.
patent: 5973640 (1999-10-01), Lee
Dilworth & Barrese LLP
Samsung Electronics Co,. Ltd.
Vincent David R.
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