Ericsson Radio Systems AB PKRC1311004-1 Manual De Usuario
Operation and Maintenance Terminal
42
Operation and Maintenance Terminal
The OMT is a tool that provides efficient aid for installation, site
acceptance, diagnostics and maintenance of RBSs within the RBS 2000
series.
acceptance, diagnostics and maintenance of RBSs within the RBS 2000
series.
42.1
References
/G.703/
/G.704/
/GSM:11.20/
/GSM:05.05/
Whenever a reference is made to a function described in another chapter,
please refer to the table of contents to find the appropriate chapter.
please refer to the table of contents to find the appropriate chapter.
42.2
Concepts
Installation Database
Each RBS has a built-in database where
information about installed hardware is
stored. The information reflects the
configuration as well as the history of the
hardware. Within the RBS, each RU
carries a database. The installation
database is used by the operator (via the
OMT), by RBS internal functions and
partly by the BSC (via A-bis).
information about installed hardware is
stored. The information reflects the
configuration as well as the history of the
hardware. Within the RBS, each RU
carries a database. The installation
database is used by the operator (via the
OMT), by RBS internal functions and
partly by the BSC (via A-bis).
MO
Managed Object. The BSC manages the
O&M of the RBS via the A-bis O&M
Interface. The RBS equipment is seen as
MOs by the BSC. This is a means of
describing the RBS in a functional-
oriented way, and a logical model of the
RBS in terms of MOs is built in the BSC.
All O&M actions are based on this logical
model structure created in the BSC.
O&M of the RBS via the A-bis O&M
Interface. The RBS equipment is seen as
MOs by the BSC. This is a means of
describing the RBS in a functional-
oriented way, and a logical model of the
RBS in terms of MOs is built in the BSC.
All O&M actions are based on this logical
model structure created in the BSC.
An MO does not necessarily have a one-
to-one relation with a physical unit in the
RBS, and the MO comprises either both
hardware and software or software only.
to-one relation with a physical unit in the
RBS, and the MO comprises either both
hardware and software or software only.
Spare Bits
A number of additional bits for spare use
in a timeslot 0 multiframe structure. This
is defined in /G. 704/. The use of these
bits is defined by the customer.
in a timeslot 0 multiframe structure. This
is defined in /G. 704/. The use of these
bits is defined by the customer.
Timeslot 0
The timeslot 0 multiframe structure is
defined in /G. 704/.
defined in /G. 704/.
CMRU
Central Main Replaceble Unit. An RBS
has exactly one CMRU. In the RBS 2000
hardware architecture, the DXU is the
CMRU.
has exactly one CMRU. In the RBS 2000
hardware architecture, the DXU is the
CMRU.
EN/LZT 720 0008
R1A
2001-06-26
321 (421)
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