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Chapter 2 BSC Hardware Data
2.1 Overview
BSC hardware data configuration includes device property configuration, AM/CM data
configuration and BM data configuration.
2.2 Configuring Device Property
Select [File/Set Device Property] in BSC Data Auto Configuration System, as shown
in Figure 1.1.
Figure 1.1 [Set Device Property] menu item
The user can also click in the [Hardware] tab page, or click the
button in the toolbar of BSC Data Auto Configuration System. The system
pops up the [Set Device Property] interface. See Figure 1.2.
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Figure 1.2 Set Device Property
As shown in Figure 1.2, [Device Type] is set as "Single Module Device" by default. If
"Use SM Board Multiplex Mode" is selected, A interface trunk resources can be
saved.
It is recommended that single module devices should not be adopted. Therefore,
"Multi-module Device" is taken as an example in the following data configuration
procedures.
Note:
"Single Module Device" denotes single-module BSC. "Multi-module Device" denotes multi-module BSC.
After [Device Type] is set as "Multi-Module Device", [Module Number] should be set
according to each actual on-site device configuration. For example, in case of full
configuration, this parameter should be set to "8", as shown in Figure 1.3.
Figure 1.3 Example of device property configuration
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Then click to complete the device property configuration.
Caution:
If the device type is changed from multi-module to single module (vice versa), the old configuration data
will be cleared. This operation is unrecoverable.
2.3 Configuring AM/CM Data
2.3.1 Overview
AM/CM data configuration includes the configuration of communication control frame,
transmission interface frame and clock frame.
The full configuration of AM/CM is shown in Figure 1.1.
Figure 1.1 Full configuration of AM/CM
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2.3.2 Transmission Interface Frame
I. Configuring Hardware Device
There are two interface frames, i.e., frame 2 and frame 3, which are located in
module 0. The number of boards contained can be automatically adjusted by the
system according to the number of every BM. The full configuration of interface
frames is shown in Figure 2-5.
Figure 1.1 Full configuration of interface frames
The number of E3Ms and GFBIs in an interface frame can be automatically adjusted
according to the number of every BM. Generally, 2 GCTNs and 4 PWCs are
configured.
To add a board, the user can right click an empty slot and select [Select Board], as
shown in Figure 1.2.
Figure 1.2 Add a board
There are two modes to delete a board.
Right click the to-be-deleted board, and select [Delete Board], as shown inFigure 1.3.
Figure 1.3 Delete a board
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Select the to-be-deleted board, and then press from the keyboard.
Note:In BSC, the operations of adding or deleting a board are basically the same.
When there are 4 BMs, the system will automatically adjust the number of E3Ms and
GFBIs, as shown in Figure 1.4.
Figure 1.4 Automatic adjustment of the number of E3Ms and GFBIs
When there are 2 BMs, two adjacent GFBIs are required. E3M should be configured
as per the number of TCMSs of in the BMs. Each E3M can be connected with 4
TCSMs. When each BM is configured with 8 TCSMs, 2 E3Ms are required.
II. Configuring SS7 Link
For a multi-module BSC, SS7 links need be configured in the [Set E3M Board
Property] dialog box. Each port (corresponding to a TCSM) on E3M can be
configured with one SS7 link.
Double click an E3M in IFigure 1.1, the system pops up an interface, as shown in
Figure 1.1.
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Figure 1.1 Set E3M Board Property
See Table 1.1 for the description of the parameters in [Set E3M Board Property].
Table 1.1 Description of the parameters in [Set E3M Board Property]
Parameter name Default value Description
MSM TS None It must be consistent with that at MSC side.
Generally, it is configured as "16".
BIE TS None It is to specify the timeslots used by SS7 signaling
in the transparent-transmission BIE. If multiple SS7
links are configured in the same module, BIE
timeslots cannot be the same. It cannot be
configured as "0". Generally, it is configured as "16".
FTC No. None No. of the FTC corresponding to the E1 on which
SS7 is transmitted. It must be consistent with that at
MSC side.
Signaling Link 4 For No. 1 LPN7, the corresponding number of
signaling links is No.4
No.7. For No. 2 LPN7, thecorresponding number of signaling links is No.8
No.11. The link number configured on the E3Ms in
the same module cannot be the same.
Connect TCSM Selected Automatically adjusted by the system.
Interface Type A Interface When PCU is to be connected, "Pb Interface"
should be selected.
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Parameter name Default value Description
Trunk Work Mode A Interface CCS
Mode
When PCU is to be connected, "Pb Interface CCS
Mode" should be selected. The parameter valuemust be consistent with that of the peer end.
Transparent
Transmission BIE
Port No. for SS7
Signaling
Port 0 of Transparent
Transmission BIE
The port on transparent-transmission BIE that is to
connect port 4 on E3M.
Reference:
[E3M E1 Configuration Table] in M900/M1800 Base Station Controller Data
Configuration Reference - Engineering Parameters
III. Configuring Clock Reference Source
Click as shown in IIFigure 1.1. The system
pops up an interface, as shown Figure 1.1.
Figure 1.1 Set E3M clock reference source
See Table 1.1 for the description of the parameters in [Board Clock Reference
Source].
Table 1.1 Description of the parameters in the [Board Clock Reference Source] dialog box
Parameter name Default value Description
Clock Reference Source 8k Clock
Use Clock Reference Source's E1
No.
No. 0 E1 Port The port from which clock reference
source is input from TCSM. The specified
port must be connected with TCSM.
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Parameter name Default value Description
Reference Source Name None Reference source can be named as per
the actual requirement.
Reference:
[E3M CLK Source Output Selection Table] in M900/M1800 Base Station Controller
Data Configuration Reference - Engineering Parameters
2.3.3 Communication Control Frame
The full configuration of the communication control frame is shown in Figure 1.1.
Figure 1.1 Full configuration of the communication control frame
I. Configuring GMCC
The number of GMCCs can be automatically adjusted by the system as per thenumber of BMs. The GMCCs in Slot15 and Slot16 must be configured.
See Table 1.1 for the corresponding relationship between GMCC and BM.
Table 1.1 The corresponding relationship between GMCC and BM.
Number of BMs Number of GMCCs
12 4
34 6
56 8
78 10
II. Configuring GALM
1 GALM is configured. Double click GALM to pop up the [AM Alarm Environment
Variable Table] interface, as shown in Figure 1.1.
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Figure 1.1 AM Alarm Environment Variable Table
For the alarm parameters, the default values are adopted.
Reference:
[AM Alarm Environment Variable Table] in M900/M1800 Base Station Controller Data
Configuration Reference - Engineering Parameters
III. Configuring GSNT
2 GSNTs are configured by default.
2.3.4 Clock Frame
The clock frame is located in Frame5 of Module0, and is configured as "CKS Clock
Frame" by default. The full configuration of the clock frame is shown in Figure 1.1.
Figure 1.1 Full configuration of the clock frame
For details, please refer to Chapter 4 Clock Data.
2.3.5 Inter-module Link
Click in 2.3.1 IFigure 1.1. The system pops up an interface,
as shown in Figure 1.1.
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Figure 1.1 Set Inter-Module Link
The setting of inter-module links includes two aspects.
I. Set AM/CM Links
Configure [GCTN Link Property] in the [AM/CM] tab page, as shown in Figure 1.1. It is
recommended that the default configuration be adopted.
Reference:
[AM Adjacent Module OPT Table] of M900/M1800 Base Station Controller Data
Configuration Reference Engineering Parameters
II. Set BM Links
Select the [BM] tab page, as shown in Figure 1.1.
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Figure 1.1 BM Module
[Optical Link 1] and [Optical Link 2] should be set as per the physical connection of
BM. [GMCC 1] and [GMCC 2] should be set as per the corresponding relationship
between GMCC and BM. Generally, BM 1 and BM 2 respectively correspond toGMCC 2 and GMCC 3. By analog, the other corresponding relations can be obtained.
It is recommended that the default settings be adopted.
The default value of [Link Rate with AM/CM] is "512k".
Reference:
[AM Adjacent Module OPT Table] in M900/M1800 Base Station Controller Data
Configuration Reference - Engineering Parameters
2.4 Configure BM Data
2.4.1 Overview
Because the application of single module BSC is comparatively limited, here, only the
BM data configuration of multi-module BSC is introduced.
BM comprises main control frame, BIE frame and TCSM frame. 1 BM can be
configured with 1 main control frame, 1 BIE frame and 12 TCSM frames. The full
configuration of BM is shown in Figure 1.1.
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Figure 1.1 Full configuration of BM
2.4.2 Main Control Frame
The main control frame is located in Frame1 and Frame2 of BM. The full configuration
is shown in Figure 1.1.
Figure 1.1 Full configuration of the main control frame
I. GMPU
GMPU is the main processing unit of BM. Each BM is configured with 2 GMPUs,
which are respectively configured in Slot10 of Frame1 and Frame2 of the main control
frame. The two GMPUs work in active/standby mode. The active GMPU refers to the
one which is under the control of GEMA. The GMPU in Frame2 serves as an active
board by default. If switchover takes place, the previous standby GMPU will serve as
the active board.
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II. GEMA
GEMA controls the active/standby working mode and switchover of GMPU. Each BM
is fixedly configured with 1 GEMA.
III. GNOD
GNOD is used to provide mailbox communication between BIE and GMPU. Each
GNOD can provide 4 master nodes, support 4 BIE groups (Each BIE group requires 1
master node). In the case of full configuration, each BM contains 9 BIE groups, and
requires 3 GNODs. Generally, the default settings can be adopted.
IV. GMEM
GMEM is a cell broadcast interface board, and provides cell broadcast function. Each
BM is configured with 2 GMEMs by default, which work in active/standby mode. The
one in Frame2 serves as the active board, and the one in Frame1 serves as a
standby board. However, the standby GMEM is currently not supported. Generally,
the GMEM is only configured to Frame2. To delete the GMEM in Frame1, please right
click the GMEM and select [Delete Board]. Double click a GMEM to pop up the [Set
GMEM Board Property] interface, as shown in Figure 1.1.
Figure 1.1 Set GMEM Property
Only when the cell broadcast function is required, GMEM property should be
configured. For specific configuration, please refer to M900/M1800 Cell Broadcast
System User Manual.
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V. LPN7
LPN7 is used to process SS7. Each LPN7 provides 4 SS7 links. The links provided by
No. 1 LPN7 (in Slot17) are numbered 47. The links provided by No. 2 LPN7 (in
Slot18) are numbered 811.
VI. GLAP
GLAP provides the LAPD links which connect BM and BTS. Each GLAP provides 32
LAPD links. Numbering of the LAPD links provided by each board complies with the
following rule.
Board No. 32 + (031)
For example, the LAPD links provided by GLAP 3 are numbered as 96127.
Each BM can provide up to 192 LAPD links, and can support 64 BTSs and 128 TRXs.
Double click GLAP to pop up the [Set GLAP Board Property] interface as shown in
Figure 1.1.
Figure 1.1 Set GLAP Property
As shown in Figure 1.1, the number of assigned links is 29, which indicates that 29
links of the GLAP are already in use.
Reference:
[LAPD Signaling Connection Table] in M900/M1800 Base Station Controller Data
Configuration Reference - Engineering Parameters
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Figure 1.2 Alarm Environment Variables Configuration Items
Reference:
[AM Alarm Environment Variable Table] in M900/M1800 Base Station Controller Data
Configuration Reference Engineering Parameters.
2.4.3 BIE Frame
The BIE frame can be configured with max. 9 BIE groups (sequentially numbered as
08 from left to right). Groups 07 each comprise 2 BIEs. There is only one BIE in
Group8. The left board of each group is an active board, and the right one is a
standby board. The full configuration of the BIE frame is shown in Figure 1.1.
Figure 1.1 Full configuration of the BIE frame
Double click the left board of a BIE group to pop up the [Set BIE Board Property]
interface as shown in Figure 1.2.
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Figure 1.2 BIE Port Networking Property
In the [BIE Port Networking Property] tab page, user can set BTS networking mode,
number of the TRXs in BTS, etc. For specific configuration methods, please refer to
Chapter 7 BTS Data and Chapter 8 BTS Networking Data.
Double click the right board, e.g., BIE 1, in a BIE group in Figure 1.1. The system
pops up the [Set BIE Board Property] interface as shown in Figure 1.3.
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Figure 1.3 Set BIE Board Property
As shown in Figure 1.3, the basic information of BIE 1 is as follows. Each BIE group
occupies 1 master node. The master node No. is "0". The slave node number is "1",
i.e., the board number. [First HW] is configured as "0". [HW Number] is configured as
"8", i.e., the board occupies HWs 07.
There are total 64 HWs (No.0 No.47, No.76 No.91) allocated to a BIE group.
Generally, groups 06 each occupy 8 HWs, and groups 78 each occupy 4 HWs.
Note: If 4 HWs are merely configured, for an ordinary BIE in the corresponding trunk mode, the number of
available ports is reduced by half. For example, if the trunk mode is "4E1 Port*6TRX/Port", Port0 and
Port1 are available, while port 2 and port 3 are unavailable.
For a transparent transmission BIE, only ports 03 are available.
[Invisible]: It can be selected if there are empty slots (with no BIE plugged in).
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[Port Self-Healing]: If selected, it indicates that the self-healing function provided by
the system is enabled.
[Board BIE Position Information]: It indicates the physical position of the BIE in the
system.
[BIE Active/Standby Property]: It indicates whether the BIE is an active or standby
board.
Select the [Basic Information] tab page in the [Set BIE Board Property] tab page in
Figure 1.2.
Figure 1.4 Basic Information
Compared with Figure 1.3, there are 2 additional parameters, [CRC4 Check [000000]]
and [Transparent Transmission of SS7 Signaling] in the [Basic Information] tab page
of the active BIE.
[CRC4 Verification [000000]] is used to configure whether CRC4 is to be performed
for the ports on BIE. The six 0s respectively correspond to 6 E1 ports. If an E1 port is
selected, the corresponding bit will be changed into 1, indicating that CRC4 will be
performed for this port.
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[Transparent Transmission of SS7 Signaling] indicates whether BIE is to transparently
transmit SS7 signaling. If it is selected, the [BIE Port Networking Property] tab page
will disappear. BIE Group9 (in Slot23) is configured as a transparent-transmission BIE
by default.
2.4.4 TCSM Frame
TCSM implements the functions of transcoding/data rate adaptation (implemented by
FTC) and submultiplexing (implemented by MSM). In the case of full configuration,
there are 2 TCSM frames in a BM, containing total 8 TCSMs. Each TCSM comprises
1 MSM and 4 FTCs. The full configuration of TCSM frame is shown in Figure 1.1.
Figure 1.1 Full configuration of TCSM frame
Note:In actual application, the hardware of TCSM frame is placed independently on the TCSM rack, instead of
in Frame4 and Frame5 of the BM rack. If BSC is far from MSC, the TCSM rack and MSC are usually
placed together to save transport resources.
2.4.5 Current Rack
Select different racks of BM
For the multi-module BSC, the parameter [Current Rack] is not invalid. For the single
module BSC, Rack1 of BM is configured with TCSM frames.
2.5 Hardware Data Configuration Instance
Here, take multi-module BSC configuration as an example. 1 AM/CM and 2 BMs need
be configured. Each BM is to be configured with 4 TCSMs. The other boards are to be
fully configured.
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2.5.1 Configuring BSC Type
Click in the [Hardware] tab page to pop up the [Set Device
Property] interface, as shown in Figure 1.1.
Figure 1.1 Set Device Property
Set [Device Type] as "Multi-Module Device", and [Module Number] as "2", and then
click .
2.5.2 Configuring AM/CM Data
I. Configuring Board
Figure 1.1 shows the AM/CM hardware configuration automatically generated by the
system.
Figure 1.1 AM/CM data configuration
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II. Modifying E3M Property
Double click No.0 E3M, and configure the data properly in the pop-up [Set E3M Board
Property] dialog box, as shown in Figure 1.1.
Figure 1.1 Configure No.0 E3M
Double click No.1 E3M, and configure the data properly, as shown in Figure 1.2.
Figure 1.2 Configure No.1 E3M
See Table 2.1 the description of E3M property configuration.
Table 2.1 Description of E3M property configuration
Parameter Name Default value Description
E1 Port None Each E3M is configured with 1 SS7 link. Port0 is selected.
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Parameter Name Default value Description
MSM TS None It is configured as "16". The value must be consistent with
that at MSC side.
BIE TS None It is configured as "16". It can be configured as any
timeslot except for TS0.
FTC No. None It is configured as "Board 0". The value must be consistent
with that at MSC side.
Signaling Link None No.0 E3M is configured with Link4. No.1 E3M is configured
with Link8. The two E3Ms in the same BM are respectively
configured with Link4 and Link8.
Connect TCSM None Because 1 BM is configured with 8 TCSMs and there are 2
E3Ms configured 1 BM, each E3M should be configured
with 2 ports to connect TCSMs. "No. 0" and "No. 1" should
be selected.
Transparent
Transmission BIE
Port No. for SS7
Signaling
None No.3 E3M is configured withPort0. No.1 E3M is configured
with Port1.
Interface Type A Interface None
Trunk Work Mode A Interface
CCS Mode
None
III. Setting E3M Clock Reference Source
Click to pop up a dialog box, as shown in
Figure 1.1.
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Figure 1.1 Set E3M clock reference source
The default value is adopted for each parameter.
2.5.3 Configuring BM Data
I. Deleting Standby GMEM
The standby GMEM is currently not supported. Right click the GMEM in Frame1 and
select [Delete Board] in the short-cut menu to delete the board.
II. Setting the TCSM with no Physical Configuration as "Invisible"
If the visibility of an MSM is to be modified, double click the MSM and select
"Invisible" in the pop-up [Set MSM Board Property] interface, as shown in Figure 1.1.
Figure 1.1 Modify the visibility of MSM
If the visibility of an FTC is to be modified, double click the FTC to pop up the [Set
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FTC Board Property] interface. Select "Invisible" in the [Basic Information] tab page,
as shown in Figure 1.2.
Figure 1.2 Modify the visibility of FTC
Repeat the operations if there are other boards to be modified. Figure 1.3 shows the
physical configuration of BM after modification.
Figure 1.3 Physical configuration of BM
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So far, AM/CM data configuration is completed.
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