Multi-Slc And System-Wide Networking - Siemens HiPath 3000 Service Manual

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Multi-SLC and System-Wide Networking

11.6 Multi-SLC and System-Wide Networking
Multi-SLC (HiPath 3800, HiPath 3750, HiPath 3700) and system-wide networking (HiPath
3800, HiPath 3750, HiPath 3550, HiPath 3350, HiPath 3700, HiPath 3500, HiPath 3300)
You can install up to four SLC16 or SLC16N boards in HiPath 3750 and HiPath 3700 and up to
four SLCN boards in HiPath 3800. For the total cordless station mobility (roaming and seamless
connection handover) within a system, the radio fields of these cordless boards are synchro-
nized.
The system views each mobile telephone (mobile station) as a corded telephone. During ad-
ministration, a fixed port on the system's "home cordless board" is assigned to the MT; this is
used for addressing the MT.
As soon as an MT moves into the area of a different radio switching location ("current-location
cordless board"), an extension connection is switched using a DSS1 connection initiated by the
cordless board. The home and current-location cordless boards exchange a networking proto-
col (User-to-User Signaling UUS) over this extension connection to support full mobility (see
Figure 11-3).
This function can be used not only within one system, but also among systems (among nodes)
because the CorNet NQ used for networking supports the UUS protocol (note: for the system-
wide extension connections, you may have to take additional B channels into consideration for
the permanent connection paths (CorNet NQ, see Section 11.7). That means full mobility
across the radio fields of the different cordless systems. All handset features (callback, team
functions, voicemail, etc.) remain intact. The network-wide handover feature is only exception
here as it is not currently supported.
Required B channels
Table 11-8 Required B channels for Multi-SLC and System-Wide Networking
Mobile telephone (MT) has set
up a connection
In the home cordless board range
In the current-location Cordless
board range
Handover from home to home
cordless board
Handover from home to current-lo-
cation cordless board
11-10
Required B Required B chan-
channels nels for the home
cordless board
1
3
1
3
HiPath 3000 V5.0, HiPath 5000 V5.0, Service Manual
Required B chan-
nels for the cur-
rent-location
cordless board
1
2
1
2
P31003-H3550-S403-4-7620, 02/05
–
1
–
1