User's Manual

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DESCRIPTION 16 ( 19 )
ERA/RGN/PD Rikard Schönbeck 5/1551-HRB 105 102/1 Uen
ERA/RGG/TOC Jan Lundkvist 2002-05-28 B
Prepared (also subject responsible if other) No
Approved Checked Date Rev Reference
E
From an RBS perspective, the different air interface channels are all treated
as transparent user plane channels.
6.2 Uu Interface
The Uu interface is the radio interface between RBS and the UE. The radio
interface is divided into three protocol layers as follows:
• Physical layer (L1)
• Data link layer (L2)
• Network layer (L3)
The L2 comprises of Medium Access (MAC) and Radio Link Control (RLC).
The MAC provides unacknowledged transfer of SDUs between peer MAC
entities, and the RLC provides data transfer of SDU and can also support the
retransmission protocol. L3 comprise the Radio Resource Control (RRC),
which interfaces with L2.
6.3 Mub Interface
The Mub is the management interface for the RBS and, in contrast to the Iub, is
not standardized. The interaction between the system and a user is realized by
means of a thin client. The thin client is a computer with basic software installed
such as a web browser. The thin client gets software that is dependent on the
managed node by loading Java applets from the node at execution time.
The Mub is based on IP, so the RBS has an IP address. Remote management
uses IP over ATM and on-site management uses Ethernet. The necessary
low-level communication layers including FTP server, HTTP server, SNMP
agent, ORB and Telnet server are provided by the common platform.
The management interfaces are shown in figure 6.
Figure 6 Management Interfaces
Each is used for different purposes as follows:
• Telnet
Telnet provides local and remote access to the operating system shell in
the RBS. The command line interface provides a set of commands handled
by a Unix shell-like command interpreter.
• IIOP
IIOP (IP based Inter-ORB Protocol) is the protocol used in Common Object
Request Broker Architecture (CORBA). It is the main protocol used for