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Table of Contents
Chapter 1. System Overview
1.1 Purpose of this document
1.2 Features of Hyundai CDMA System
1.3 Overview
Chapter 2. BSC Basics
2.1 System Overview and Specification
2.1.1 Overview
2.1.2 Specifications and Characteristics
2.2 H/W Structure and Function
2.2.1 Overview
2.2.2 Structure of Subsystem
User’s Manual
2.3 S/W Structure and Function
2.3.1 Overview
2.3.2 Structure
Chapter 3. BSM Operation & Administration
3.1 BSM Operation
3.1.1 Overview
3.1.2 Main Display Structure
3.1.3 Main Button
3.1.4 Command Buttons
3.1.5 Service Button
3.1.6 Operations of “Alarm” window
3.2 System Status Management
3.2.1 System Status Test
3.2.2 System Diagnosis
3.2.3 Statistics
3.3 Data Management
3.3.1 Access Channel Parameter
3.3.2 Access Parameter
PROPRIETARY & CONFIDENTIAL
3.3.3 Information of Micro-BTS Configuration
3.3.4 Base Station CDMA Environment
3.3.5 Base Station CDMA Information
3.3.6 Base Station Channel List Message
3.3.7 Extended System Parameter Information
3.3.8 Forward Link Power Information
3.3.9 Paging Channel Parameter
3.3.10 Psync Channel Parameter
3.3.11 RFC Parameter
3.3.12 Forward Link Power Control Data
3.3.13 Reverse Link Power Control Data
3.3.14 Base Station Cell Information
3.3.15 Corresponding Sector Information of Micro-BTS
3.3.16 Sync Channel Message
3.3.17 System Parameter
User’s Manual
3.3.18 System Parameter Message
3.3.19 Traffic Channel Parameter
3.4 Call Processing System
3.4.1 Overview
3.4.2 Call Processing Flow
3.4.3 Call Trace
3.4.4 Call Release Reason and State
Chapter 4. BSC References
4.1 Rack Configuration
4.2 DIP Switch & Strap
4.2.1 Summary
4.2.2 Purpose
4.2.3 Address Setting in Common
4.2.4 MCDA (Main Control & Duplication board Assembly-A1)
4.2.5 CIFA-A1 (Cin Interface Function board Assembly-A1)
4.2.6 HICA-A2 (High capacity Ipc Control board Assembly-A2)
4.2.16 ACPA-A1 (Alarm Control Processor Assembly-A1)
4.2.17 SDBB-A1 (CKd Split & Distributed Back Board-A1)
4.2.18 TSBB-A1 (TSb Back Board-A1)
4.2.19 BABB-A1 (Bsc Alarm Back Board-A1)
4.2.20 HSBB-A1 (HIPC Small BackBoard-A1)
4.3 LED Descriptions
4.4 Command List
User’s Manual
4.5 Acronym
Chapter 5. Micro-BTS Basics
5.1 System Overview and Specification
5.1.1 Overview
5.1.2 Functions
5.1.3 System Specification
5.2 Micro-BTS Structure and Configuration
5.2.1 Micro-BTS Structure
5.2.2 Micro-BTS Block Configuration
5.3 H/W Structure and Function
5.3.1 BMP
5.3.2 DU
5.3.3 TFU
5.3.4RFU
5.3.5Antenna Subsystem (AIU-RRU, AIDU-AAU)
5.3.6BTU
5.3.7 RPU
PROPRIETARY & CONFIDENTIAL
5.4 S/W Structure and Function
5.4.1 Overview
5.4.2 Basic Functions
5.5 Abbreviations
Chapter 6. Micro-BTS References
6.1 Rack Configuration
6.1.1 MBTR I (1.9GHz)
6.1.2 MBTR I (800MHz)
6.2 DIP Switch and Strap
6.2.1 Summary
6.2.2 Purpose
6.2.3 Address Setting in Common
6.2.4 BMPA-B2
User’s Manual
6.2.5 CDCA-B1
6.2.6 BICA-B1
6.2.7 HLTA-B1
6.3 LED Descriptions
6.3.1 BMP
6.3.2 DU
6.3.3 TFU
6.3.4 RPU
6.4 Alarm Source List
6.5 Abbreviations
PROPRIETARY & CONFIDENTIAL
User’s Manual
Chapter 1 System Overview
1.1 Purpose of this document
This chapter contains description of Hyundai Micro-BTS PCS System that is operating on
800MHz and 1.9GHz frequency band, repectively.
1.2 Features of Hyundai CDMA System
There are two sub-systems in Hyundai CDMA system ; Micro-BTS and BSC. BSC
interfaces with switching equipment and has roles of vocoding and call processing. MicroBTS is functionally located between MS (Mobile Station) and BSC. Hyundai Micro-BTS
has channel resource unit and radio frequency RF unit similar to the conventional 3-Sector
BTS. Contrary to conventional 3-Sector BTS, Hyundai Micro-BTS is small in size, easily
can be installed and maintained, and is very cheap in cost.
1.3 Overview
Hyundai Micro-BTS system can support 2FA/3Sector using 2 racks, but Micro-BTS system
is composed of 1FA/3sector system for the FCC authorization. Thus this manual will
describe all of the specifications based on 1FA/3sector system.
The system configuration is shown in Figure 1.1. In this configuration, there are 1 BSC and
3 Micro-BTS systems. Each Micro-BTS system is separately located in 3 sites. Micro-BTS
can use 2 types of antenna subsystem, RRU (Remote RF Unit) and AAU (Active Antenna
Unit). RRU is connected to Micro-BTS main system through AIU (Antenna Interface Unit)
and AAU through AIDU (Active Internal Distribution Unit). In case of trunk line, we have
several solutions, T1 and E1. We use T1 trunk line in USA. It means that we do not use
HLEA but HLTA as trunk card.
BSM manages and maintains Micro-BTS and BSC. It communicates with each system by
transmitting and receiving packets through LCIN. Its features include performance
management, configuration management, fault management, etc..
PROPRIETARY & CONFIDENTIAL 1-1
User’s Manual
RRU-B1
GPS Antenna
DU
System Configuration for Test_Bed
GPS Antenna
BSC_COMR
FANU
BSC-
GPS
1x T1 leased line
MBTR1
BMP
TFUDU
RFU
RPU
ACP
ACP
CSB
CCP
TSB
LCIN
FANU
GCIN
FANU
RRU-B1RRU-B1
MSC RACK
MSC(Switch)
1x T1 leased line
GPS Antenna
DU
MBTR1
RFU
RPU
BMP
BSM
TFU
1x T1 leased line
GPS Antenna
MBTR1
RFU
RPU
BMP
DEC, 8, 1998
TFU
AIU-B1
MBTR: Micro-BTS Rack
DU: Digital Unit
BMP: BTS Main Processor
TFU: Time & Frequency Unit
RFU: Radio Frequency Unit
RPU
AIU: Antenna Interface Unit
RRU: Remote RF Unit
: Rectifier Power Unit
AIU-B1
GPS: Global Positioning System
MSC: Mobile Switching Center
BSC: Base Station Controller
BSM: Base Station Manager
AIU-B1
Figure 1.1 Configuration of system for field trial
PROPRIETARY & CONFIDENTIAL 1-2
User’s Manual
Chapter 2 BSC Basics
2.1 System Overview and Specification
2.1.1 Overview
BSC is located between MSC and BTS. It carries out a wire/wireless link control function,
handoff function and transcoding function. And it is made up of a LCIN, GCIN, TSB, CCP,
CSB, CKD, BSC-GPS, and BSM block. [Refer to Fig.2.1].
BSC-GPS
IPC
IPC
IPC
Others BSC
T1
TSB
T1
BSM
BTS0
BTS1
BTS59
BTSBSCMSC
T1
T1
IPCIPCIPC
T1
CCPCSB
IPC
GCIN
IPC
LCIN
ACPCKD
Figure 2.1 Configuration of BSC
Each block does following functions.
• BSM is a system used to operate the entire BSC and BTS, to manage their resources,
status and configuration, and to execute the user interface, and maintenance. It consists
of a SUN Sparc Workstation and the various types of input/output devices for enhancing
user's convenience.
• LCIN is a network that provides the communication paths of packet-type data between
subsystems. LCIN routes and transmits packet data within BSC and it has trunk interface
function between BSC and BTS.
PROPRIETARY & CONFIDENTIAL
2-1
User’s Manual
• GCIN is a network that provides the communication paths of packet-type data between
LCINs. GCIN also provides the communication path between BSM and other processor.
• CCP is a processor system that carries out the call processing and soft-handoff
processing function for entire BSC, allocates wireless resource of BSC, and controls
overload of vocoders and the main processor of BSC.
• CSB converts the IPC protocol of CCP into the No.7 protocol to access to MSC through
the trunk of TSB block.
• BSC-GPS is a system for providing the reference time used in the CDMA system. CKD
converts the clocks received from BSC-GPS and then, distributes synchronization
signals required for the system.
• ACP collects the various types of alarm status in BSC and then, reports them to BSM in
order to carry out system O & M efficiently.
• TSB is connected to MSC with T1 trunk. TSB converts the PCM voice signal of 64Kbps
received through this with the QCELP algorithm and it sends the converted signal to the
channel unit of BTS. In addition, it carries out the reverse function of the above.
Moreover, after being linked to the BTS, it executes a handoff function and power control
function on radio link.
2.1.2 Specifications and Characteristics
2.1.2.1 Specifications of BSC
(1) Capacities
• Number of controlled BTS : 60BTS/BSC
• Number of voice channel : 960 CH/BSC
• Number of BSC which are inter-accessible : 12BSC/MSC
• Maximum capable subscribers : 30,000 subscribers/BSC (Br 1%, 0.03Erlang)
(2) Link protocol
PROPRIETARY & CONFIDENTIAL
2-2
• BSC-MSC Link
T1 for Traffic
SS No.7 for signaling & control (ITU-T STD)
• BTS-BSC Link
Un-channelized T1
(3) Power
• DC - 48 V
• Integration of storage battery is possible.
(4) Specification of LCIN
• Up to 112 T1 Trunk to BTS
• Function of Remote Loop-back
• Function of transmit/receive of Remote alarm
(5) Specification of CCP & CSB
• Use 32bit Main Processor
• Interface function with LCIN
User’s Manual
• Interface to MSC
(6) Specification of TSB
• Interface to MSC with T1
• Accepts 48 Transcoding channel per TSB
• 12 Vocoder Channels/Channel Card
(7) Specification of GCIN
• 4 links to a LCIN
• Up to 12 LCIN connection capability
• RS-422 links for LCIN links, BSM and other processors
(8) Specification of BSM
• Main Frame: Use commercial workstation
• Main Processor: SPARC Processor processing rate more than 80MIPS
• Main Memory: more than 64Mbyte
• Hard Disk: more than 2Gbyte
• Tape Drive: more than 150Mbyte
• Parallel Port: Connect with High Speed Printer
• HDLC Card: support the rate more than 2.048Mbps and functions of X.25
connection
PROPRIETARY & CONFIDENTIAL
2-3
User’s Manual
• Audio I/O Port: supply alarm function
• Software: Motif/X11, Informix DBMS
2.1.2.2 Characteristics
(1) Distributed control structure and duplication of main part
(2) Using the link that is capable of high reliability and high speed data transmit
(3) Increasing the trunk efficiency by packet transmit
(4) Real-time processing of system by real-time OS
PROPRIETARY & CONFIDENTIAL
2-4
User’s Manual
2.2 H/W Structure and Function
2.2.1 Overview
Hardware structure of BSC is shown in Fig.2.2 and traffic and data communication is
accomplished in connection with BTS, CCP, CSB, TSB, BSC-GPS & ACP and BSM with
placing LCIN and GCIN as a Packet Router. For interconnection between BSC, extension
of system is possible using private Router (HRNA-A2). Therefore, structure is designed
that soft handoff is possible between BTSs controlled by different BSCs
BSM
To/From
BTS0
~
BTS59
IPC
LCIN
T1
T1
T1
CCP
MCDACIFA
HRNA
HRNA
HRNA
HICAHRNAHRNA
HRNA
GCIN
IPC
HRNAHRNA
HICA
HRNA
IPC
ACP
TSB
IPC
HRNAHRNA
IPCIPC
CSB
MCDACIFA
Figure 2.2 H/W Structure of BSC
V
S
I
A
BSC-GPS
CKD
SYSTEM BUS
V
V
S
S
O
O
A
A
ST-BUS
To/From MSC
0131
V
S
O
A
T1
PROPRIETARY & CONFIDENTIAL
2-5
User’s Manual
2.2.2 Structure of Subsystem
2.2.2.1 LCIN (Local CDMA Interconnection Network)
LCIN receives Packet Data transmitted by each subsystem connected to BSC and routes
the Packet Data to destination address that are added in overhead of Packet.
(1) Functions of LCIN
• CDMA Traffic Information Routing between BTS and TSB
• Information Routing between BTS, CCP.
• Internal information Routing among TSB, CCP, CSB, TFGA-A1 and ACP
(2) H/W Structure of LCIN
After LCIN converts Packet Data which are inputted by each subsystem in BSC to
16-bit parallel data, analyzes Packet Address and converts them again to Serial data
via internal Routing and routes them to corresponding subsystem. LCIN consists of
HICA-A2, HRNA-A2, HNTA-A2 and backboard CHBB-A1 card.
1) HICA-A2 (High-performance IPC Control Board Assembly-A2)
HICA-A2 performs network management functions of LCIN that is made up of
nodes providing communication path between processor of BSC and BTS.
For management of communication network, LCIN have control and maintenance
channel (M-BUS) responsible for fault processing and node status monitoring and
communication channel (U-Link) with other processor. HICA-A2 generates BUS
arbitration control signal between nodes of D-BUS and exchanges common bus for
data of each node. HICA-A2 performs each PBA’s status management and
maintenance of LCIN block, and status management and maintenance of Link.
2) HRNA-A2 (High performance IPC Routing Node Assembly-A2)
HRNA-A2 have 8 Nodes. It is a PBA having the function of node that is basic unit of
IPC (Inter Processor Communication) in LCIN. HRNA-A2 is an interface board by
which each subsystem can be accessed to LCIN. After converting the packet data
that are inputted through RS-422 parallel interface, it outputs the converted data on
packet bus (D-BUS) of LCIN according to the routing control signal of HICA-A2.
HRNA-A2 performs that extracts 3 bytes destination address of Packet Data that is
loaded on D-Bus and accepts the packet only if the compared result of destination
address of Packet Data with node address of itself are equal, then converts it to
serial type and transmits it to each subsystem.
PROPRIETARY & CONFIDENTIAL
2-6
User’s Manual
HRNA-A2 performs the functions that receives control command from HICA-A2 and
reports the status of HRNA-A2 using dualized serial control bus (M-BUS).
HRNA-A2 has the functions that detects various fault per node and D-BUS fault
occurs in operation, and reports detected faults to HICA-A2 through M-BUS.
HRNA-A2 performs fault recovery functions by initializing fault detected node and
switching of D-BUS.
3) HNTA-A2 (High Performance IPC Node & T1 trunk interface Board Assembly-A2)
HNTA-A2 is used for linking T1 trunk in LCIN. BSC and BTS are accessed each
other through Digital Trunk and HNTA-A2 performs link functions of T1 Trunk Line.
HNTA-A2 performs functions of Node and link of Trunks simultaneously, and have 8
node and 8 T1 digital trunk interface.
HNTA-A2 performs the functions that receives control command from HICA-A2
through M-BUS and exchanges packet between node through D-BUS.
HNTA-A2 performs the functions that tries to recover by fault detection of D-BUS
and monitors and reports the status of Trunk.
(3) Structure Diagram of LCIN
• LCIN consists of Routing functions based on BSC unit.
• LCIN consists of BTS link interface functions using T1 Trunk Line.
The following Fig.2.3 describes structure diagram of LCIN
HICA-A2HICA-A2
Data Bus (D-Bus)Data Bus (D-Bus)
Maintenance Bus (M-Bus)Maintenance Bus (M-Bus)
HRNA-A2HRNA-A2
u-link
U-LinkU-Link
BSC Blocks & UnitsBSC Blocks & Units
Figure 2.3 Structure Diagram of LCIN
PROPRIETARY & CONFIDENTIAL
HNTA-A2HNTA-A2
T1
BTSBTS
2-7
User’s Manual
(4) Address System
LCIN uses 3 byte address system enough to process traffic resources in BS (BTS &
BSC).
2.2.2.2 TSB (Transcoding & Selector Bank)
(1) Functions of TSB
• CCP by MSC allocates resources when call setup
• provides information about code transition by mobile and registration in the process of
call processing
• removes vocoder when call releases
• corresponding Card to Channel Element of BTS
• performs vocoder functions of voice
• performs functions of Rate Adaptation of Data and Coder/Decoder
• performs function of Selection for Soft-Handoff
• performs Power Control functions (Forward Power Control & Open Loop Power
Control)
(2) Hardware structure of TSB
• TSB consists of VSIA-C1 connected to LCIN and VSOA-A1 mounted with vocoder
• has 92 Transcoding Channel per TSB 1Unit (T1)
• VSIA-C1 performs functions that receives serial Packet data inputted from LCIN,
converts to parallel data, transmits to VSOA-A1 mounted with vocoder, receives data
vocoded in VSOA-A1 and converted to PCM type through ST-BUS, makes data
multiplex and transmits to MSC.
• VSOA-A1 is mounted with 12 vocoder performs functions that converts QCELP Packet
Data to PCM Voice Code and PCM Voice Code to QCELP Packet Data.
(3) Structure Diagram of TSB
The following Fig.2.4 describes structure diagram of TSB
PROPRIETARY & CONFIDENTIAL
2-8
MSCALM
2 T1
T1
ST-BUS
ST-BUS
ROUTER
I/F
User’s Manual
DSP
DSP
DSP
Module
DSP
Module
Module
Module
MCU
AM29240
CPU
MC68360
HDLC
RS-422
LCINCKD
ROUTER
I/F
VSIA-C1
ROUTER
VSOA-A1
I/F
ST-BUS
MCU
AM29240
DSP
DSP
Module
DSP
Module
Module
Module
DSP
Figure 2.4 Structure Diagram of TSB
2.2.2.3 CCP (Call Control Processor)
(1) Functions of CCP
• performs all of call processing related control functions of BSC
• exchanges CDMA related information among BTS, TSB and MSC
• controls Soft-Handoff and Hard-Handoff
• supports Paging
• controls overload and manages TSB
(2) Hardware structure of CCP, CSB
CCP consists of main processor MCDA and CIFA responsible for inter-processor
communication with HRNA in LCIN.
When using No.7 Signaling mode, CCP system is connected to CSB block through
CIFA-A1 via LCIN block and CSB block transfers this message to MSC through Trunk
after converting this message appropriate for No.7 Protocol.
1) MCDA (Main Control Duplication Assembly)
MCDA communicates with CIFA-A1 using MPS-bus. It is responsible for
communication with dualized block. If Power of MCDA is ON, Booter operates, and
PROPRIETARY & CONFIDENTIAL
2-9
User’s Manual
MCDA determines whether active or standby of itself through S channel of MFP in
result of negotiation with other MCDA and requests loading. If MCDA operates
normally after OS Loading, MCDA controls call processing and manages Selector.
2) CIFA-A1 (CIN Interface Board Assembly)
CIFA-A1 is an interface board responsible for communication with external and has
functions of MPS-bus link and direct DATA communication with CIN block.
For connection with LCIN, CIFA-A1 transmits and receives control information using
Address Decoding & Zero insertion/deletion, CRC generation and check function
through HDLC Protocol.
3) Structure Diagram of CCP, CSB
The following Fig.2.5 describes structure of CCP
LCIN
VSIA-C1
CIFA-A1MCDA
MSC
Figure 2.5 Structure of CCP
2.2.2.5 BSC-GPS/CKD (Clock Distributor)
(1) Functions of BSC-GPS/CKD
• BSC-GPS block is located in CMNR of BSC (Base Station Controller). When 1PPS and
10MHz from GBSU-A1 (GPS) are inputted to TFSA-A1, then it converts and distributes
them into clock necessary in BSC, and provides them through TFDA-A1 to TSB and
LCIN. Number of providing clocks is 16 in minimum and 32 clocks in maximum.
BSC-GPS/CKD consists of GPS Receiver, TFSA-A1 that receives clock, Clock
PROPRIETARY & CONFIDENTIAL
2-10
generator (TFGA-A1) and Clock distributor (TFDA-A1).
The structure Diagram of CKD is shown in Figure 2.7.
User’s Manual
GPS
RECEIVER-A
TFSA-A1TFGA-A1
HDLC
RS-422
TOD
BSM
Figure 2.7 Structure Diagram of CKD
T
F
D
A
RS-422
Clocks
TSB or CIN
16CLK PORT
PROPRIETARY & CONFIDENTIAL
2-11
User’s Manual
2.2.2.6 ACP (Alarm Control Processor)
(1) Structure and Functions of ACP
ACP block is located in BSC (Base Station Controller) and has functions of collecting
alarm sources of each subsystem by H/W and reporting to BSM by S/W. This block is
mounted one per one BSC and one ACP block is mounted on a ACPA-A1 board and
can monitor 26 alarm ports in maximum. Each alarm port is connected to each
subsystem of BSC more than one and monitors OFF-FAIL of important board and
power module.
If system extends and number of alarm port is increased, additional ACP blocks can be
mounted.
(2) Structure Diagram of ACP
The following Fig.2.8 describes structure diagram of ACP
GCIN receives Packet Data transmitted by each subsystem connected to GCIN . GCIN
also receives Packet Data transmitted from a LCIN to other LCIN. GCIN routes the Packet
Data to destination address which are added in overhead of Packet.
(1) Functions of GCIN
• CDMA Traffic Information Routing between LCINs
• Information Routing between LCINs and BSM.
PROPRIETARY & CONFIDENTIAL
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User’s Manual
• Internal information Routing among TFSA-A1, HICA-A2 , BSM.
(2) H/W Structure of GCIN
GCIN converts Packet Data which are inputted by each link from LCIN or subsystems
in GCIN to 16-bit parallel data, GCIN analyzes Packet Address and converts them
again to Serial data via internal Routing and routes them to corresponding subsystem
or links. GCIN consists of HICA-A2, HRNA-A2, and backboard HSBB-A1 card.
1) HICA-A2 (High-performance IPC Control Board Assembly-A2)HICA-A2 performs network management functions of GCIN which is made up of
nodes providing communication path between processor of BSC and BTS.
For management of communication network, GCIN has control and maintenance
channel (M-BUS) responsible for fault processing and node status monitoring and
communication channel (U-Link) with other processor. HICA-A2 generates BUS
arbitration control signal between nodes of D-BUS, common bus for data exchange
of each node. HICA-A2 performs each PBA’s status management and maintenance
of LCIN block, and status management and maintenance of Link.
2) HRNA-A2 (High performance IPC Routing Node Assembly-A2)HRNA-A2 has 8 Nodes. It is a PBA having the function of node which is basic unit of
IPC (Inter Processor Communication) in GCIN. HRNA-A2 is an interface board by
which each subsystem can be accessed to GCIN. After converting the packet data
which are inputted through RS-422 parallel interface, it outputs the converted data
on packet bus (D-BUS) of GCIN according to the routing control signal of HICA-A2.
HRNA-A2 performs that extracts 3 bytes destination address of Packet Data which
are loaded on D-Bus and accepts the packet only if the compared results of
destination address of Packet Data with node address of itself are equal, then
converts it to serial type and transmits it to each subsystem.
HRNA-A2 performs the functions that receives control command from HICA-A2 and
reports the status of HRNA-A2 using dualized serial control bus (M-BUS).
HRNA-A2 have the functions that detects various fault per node and D-BUS fault
occurs in operation, and reports detected faults to HICA-A2 through M-BUS.
HRNA-A2 performs fault recovery functions by initializing fault detected node and
switching of D-BUS.
(3) Structure Diagram of GCIN
• GCIN consists of Routing functions between LCINs.
• GCIN consists of Routing functions between subsystems in GCIN.
The following Fig.2.9 describes structure diagram of GCIN
PROPRIETARY & CONFIDENTIAL
2-13
Data Bus (D-Bus)Data Bus (D-Bus)
Maintenance Bus (M-Bus)Maintenance Bus (M-Bus)
User’s Manual
T1/E1
HICA-A2HICA-A2
HRNA-A2HRNA-A2
u-link
BSC Blocks & UnitsBSC Blocks & Units
HNTA-A2/HNTA-A2/
HNEA-A2HNEA-A2
U-LinkU-Link
BTSBTS
Figure 2.9 Structure Diagram of GCIN
(4) Address System
GCIN uses 3 byte address system enough to process traffic resources in BS (BTS &
BSC).
PROPRIETARY & CONFIDENTIAL
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User’s Manual
2.3 S/W Structure and Function
2.3.1 Overview
Software of CCP and TSB consists of an operation and maintenance Software and a
control and resource management Software of each subsystem.
Software of BSM can largely be divided into an operation function and a general function.
The operation function consists of a software taking charge of system loading, system
structure management and performance management and a software taking charge of
maintenance function that detects, isolates and recovers abnormally-running device.
The general function consists of software taking charge of data communication function,
data management function, and manager link function.
2.3.2 Structure
2.3.2.1 CCP Software
(1) CCOX (Call Control eXecution)
• Origination and Termination call processing processed by the unit of Process CCOX
registers and manages their call by the unit of Process and releases Process by Call
Release function.
• Origination call processing, in case of receiving Call Request of Handset from BS,
allocates selector and ensures traffic channel by using resource allocation function
and requests Call Setup to MSC. If the approval from MSC is identified, Call Setup of
Origination call processing is completed
• Termination call processing, in case of receiving Paging Request from MSC, allocates
selector and ensures traffic channel by using resource allocation function and
completes Call Setup of termination call processing
• Origination and Termination Call Release are performed in case of requesting Call
Release by telephone network subscriber or Handset, and cause Call Path and
wireless channel and inform it of data processing function
• also, performs designated path CALL SETUP and CALL TRACE function
PROPRIETARY & CONFIDENTIAL
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User’s Manual
(2) CDAX (CCP Database Access eXecution)
• It is a library that supplies various functions able to read, write and access the
operation information in CCP and the PLD saving configuration information.
(3) CRAX (CCP Resource Allocation eXecution)
• initialization of configuration information of CCP
• statistics library supply
• available call resource library supply
(4) CMMX (CCP Measurement Manager eXecution)
This block has a function for measurement and statistics processing.