User's Manual

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DESCRIPTION 16 ( 20 )
EAB/RWB/ZG Christina Wilson 18/1551–HRB 105 102/1 Uen
EAB/RWB/Z (Dennis Radenholt) 2003-06-16 B
Prepared (also subject responsible if other) No
Approved Checked Date Rev Reference
E
6.2 Platform Functions
The Platform contains all the functionality necessary to switch ATM cells and
variable length cells (that is, ATM Adaptation Layer type 2 (AAL2) Common Part
Sublayer (CPS) packets) within an ATM-based telecommunications network.
It also includes CCITT Signalling System number 7 (SS7) support (Signalling
Connection Control Protocol (SCCP) Message Transfer Part layer 3 broadband
(MTP3b) as well as functionality for network signalling using Q.2630.1 for
AAL2 connections.
7 External Interfaces
Communication to and from the RBS is made through the Iub, Uu and Mub
interfaces. Besides these interfaces the RBS also provides a management
GUI that uses the Mub, and a Visual and Mechanical Interface (VMI), which
comprises indicators, switches, buttons, cables, and so on. An overview of
the external interfaces is given in figure 5. Descriptions of the interfaces are
given below.
UE
B 00 00559
Uu
GUI
VMI
Mub
Iub
RNC
RBS
Figure 5 External Interfaces