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DESCRIPTION 15 ( 25 )
ERA/RGN/PD Jennie Bergström 5/1551-HRB 105 102/1 Uen
ERA/RKF/TU Carl Helander 2003-01-28 C
Prepared (also subject responsible if other) No
Approved Checked Date Rev Reference
E
• Management view
− Presentation Layer
− Management Adaptation Layer
− Resource Layer
Platform View
The platform view consists of two layers: the common platform layer and the
application program layer.
The application program layer is the software executing on top of the common
platform.
The common platform layer isolates the application program layer from the
implementation details of the processor and ATM platforms. This makes it
possible to change the processor and ATM parts without having to modify the
application program. The common platform layer also supports the Element
Manager (EM) by providing common platform support functions such as a
graphical interface and Java applet communication.
Traffic Control View
This view hides the specific RBS hardware from the actual services supplied
by the RBS to the RNC, and other RBS internal functions. This is done to
encapsulate the parts of the system that have to be modified when the
hardware is modified. Modification includes both modernization of a specific
RBS and handling of different types of RBSs.
There are four layers in the traffic control view:
• Traffic service layer — receives service requests from the RNC and then
carries out the application program procedures using logical resources
(channels, cell-carrier, ATM links, and so on).
• Logical resource layer — provides logical resources to the traffic service
layer. It transforms operations on logical resources into operations on
devices or ATM entities.
• Equipment layer — hides information as to which specific board a certain
functionality is allocated. The functionality is supplied to the Logical
Resource Layer in term of devices.
• Hardware layer — hides the detailed design of a hardware item.
Management View
The management view hides implementation details from being visible in the
Graphical User Interface (GUI).
There are three layers in the management view: