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HD MIC1900
Users manual
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Hyundai Electronics Co HD MIC1900 Users manual

USER’S MANUAL
for HD-BSC 960 and HD-MIC 1900
1999. 3
Copyright 1999 Hyundai Electronics Industries Co., Ltd.
All rights are reserved. No part of this document may be used or reproduced in any means without the prior written permission of the copyright holders.
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
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2.2.2 Structure of Subsystem
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
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..
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RRU-B1
GPS Antenna
DU
System Configuration for Test_Bed
GPS Antenna
BSC_COMR
FANU
BSC-
GPS
1x T1 leased line
MBTR1
BMP
TFU DU
RFU
ACP
ACP
CSB
CCP
TSB
LCIN
FANU
GCIN
FANU
RRU-B1 RRU-B1
MSC RACK
MSC(Switch)
1x T1 leased line
GPS Antenna
DU
MBTR1
RFU
BMP
BSM
TFU
1x T1 leased line
GPS Antenna
MBTR1
RFU
BMP
DEC, 8, 1998
TFU
RPU
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
RPU
AIU-B1
GPS : Global Positioning System MSC : Mobile Switching Center BSC : Base Station Controller BSM : Base Station Manager
RPU
AIU-B1
Figure 1.1 Configuration of system for field trial
PROPRIETARY & CONFIDENTIAL 1-2
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
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3.3.16 Sync Channel Message
3.3.17 System Parameter
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)
4.2.7 HRNA-A2 (High capacity Routing Node Assembly-A2)
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4.2.8 HNTA-A2 (High capacity ipc Node & T1 interface Assembly-A2)
4.2.9 TFSA-A1 (Time & Frequency Split Assembly-A1)
4.2.10 TSGA-A1 (Time & frequency Splitting Generation Assembly-A1)
4.2.11 TFDA-A1 (Time & Frequency Distribution Assembly-A1)
4.2.12 VSIA-C1 (Vocoder Selector Interface Assembly-C1)
4.2.13 VSOA-A1 (Vocoder Selector Operation Assembly-A1)
4.2.14 CHBB-A1 (Cin Hipc Back Board-A1)
4.2.15 CCBB-A1 (CCp Back wiring Board-A1)
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
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
5.3.4 RFU
5.3.5 Antenna Subsystem (AIU-RRU, AIDU-AAU)
5.3.6 BTU
5.3.7 RPU
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
User’s Manual
6.2.4 BMPA-B1
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
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
BTS BSC MSC
T1
T1
IPC IPC IPC
T1
CCP CSB
IPC
GCIN
IPC
LCIN
ACP CKD
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.
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• 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
• 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
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• Use 32bit Main Processor
• Interface function with LCIN
• 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
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• 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
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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
HRNA
T1
T1
HRNA
HRNA
CCP
MCDA CIFA
HICA HRNAHRNA
HRNA
IPC
HRNA HRNA
HICA
HRNA
HRNAHRNA
IPC IPC
GCIN
MCDACIFA
IPC
CSB
IPC
ACP
TSB
V S
I
A
BSC-GPS
CKD
SYSTEM BUS
V
V
S
S
O
O
A
A
ST-BUS
To/From MSC
0 1 31
V S O A
T1
Figure 2.2 H/W Structure of BSC
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.
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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
Data Bus (D-Bus)Data Bus (D-Bus)
Maintenance Bus (M-Bus)Maintenance Bus (M-Bus)
HICA-A2HICA-A2
u-link
HRNA-A2HRNA-A2
U-LinkU-Link
HNTA-A2HNTA-A2
T1
BTSBTS
BSC Blocks & UnitsBSC Blocks & Units
Figure 2.3 Structure Diagram of LCIN
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(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
MSC ALM
2 T1
ST-BUS
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DSP
DSP
DSP
Module
DSP
Module
Module
Module
T1
CPU
MC68360
HDLC
ST-BUS
ROUTER
I/F
VSIA-C1
RS-422
LCIN CKD
Figure 2.4 Structure Diagram of TSB
2.2.2.3 CCP (Call Control Processor)
ROUTER
ROUTER
VSOA-A1
I/F
I/F
ST-BUS
MCU
AM29240
MCU
AM29240
DSP
DSP
DSP
Module
DSP
Module
Module
Module
(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
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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.
• Distributed Clock : 4.096MHz, 2.048MHz, 1.544MHz, FP (8KHz), FOI (8KHz), 50Hz, 1Hz
(2) Hardware structure of BSC-GPS/CKD
BSC-GPS/CKD consists of GPS Receiver, TFSA-A1 that receives clock, Clock
generator (TFGA-A1) and Clock distributor (TFDA-A1). The structure Diagram of CKD is shown in Figure 2.7.
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GPS
RECEIVER-A
TFSA-A1 TFGA-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
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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
ACPA-A1 BSM
Alarm Information
CCP LCIN CKD TSB
IPC-HDLC
LCIN
Figure 2.8 Structure Diagram of ACP
2.2.2.7 GCIN (Global CDMA Interconnection Network)
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.
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• 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
Data Bus (D-Bus)Data Bus (D-Bus)
Maintenance Bus (M-Bus)Maintenance Bus (M-Bus)
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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).
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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
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(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.
• statistics data collection & measurement
• statistics data report
• linking with call processing S/W & library call
• statistics count decision (event collection /accumulation/totalization)
(5) CDIAX (CCP DIAgnosis eXecution)
It consists of diagnostic function and performance drop prevention function by diagnosis in initialization and system operation
• diagnosis for process, Device, path
• automatic diagnosis for vocoder and link
(6) CSHX (CCP Status Handling eXecution)
It consists of functions for state management of system
• processor state checking
• management of vocoder and link state
• information supply for available resource
(7) CRMX (CCP Resource Management eXecution))
It consists of functions for resource configuration management
• configuration control of resource
• resource data processing by MMC
• common data (BCP&CCP Common Data) loading and data display
(8) CPLX (CCP Process Loader eXecution)
It consists of initial Loading and Loading function in operation.
• Start and Restart of initial system
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• Start and Restart of process
• Stand-by Loading
• initialization (data initialization, process initialization and state identification)
2.3.2.2 Software Structure of CCP
The following Fig.2.10 describes S/W structure of CCP
CCOX CRMX
CDIAX
2.3.2.3 TSB S/W Structure
PLD
CDAXCSHX
CRAX
CPLX
CMMX
Figure 2.10 S/W Structure of CCP
TSB S/W (from now on, SVPX) is the S/W block driven over VSOA board, since two Processors exist in one board, each Processor process six channels. SVPX processes traffics and signals coming from Mobile, CE and CCP. SVPX consists of following Tasks. [Refer to Fig.2.11]
User’s Manual
Vocoder
Main Task
CCP msg
routine
Call proc Task
Layer2 Task
Rx Int Server
Handoff Task
Power Control
Task
Tx Int Server
Voice
29K Driver
Signal
CCP
BTS
(CE)
Figure 2.11 TSB S/W Structure
(1) 29K Driver
As initial Task after SVPX is loaded , it initializes processor and plays an interface role between AP and Devices. Other tasks are processed over this Driver
(2) Main Task
If main task takes over control from Driver, it initializes Queue and Vocoder state and generates task and initializes it.
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(3) Rx Interrupt Server
Traffic Frame transmits and receives one frame every 20msec per call. Some of reverse frame coming from Mobile every 20msec contain a vocoded voice data and a CAI (Common Air Interface) message for call processing.
The Voice data is transmitted into Vocoder, the CAI message is transmitted into
Callproc Task, and control message coming from CE is also transmitted into Callproc Task. Rx Interrupt server estimates frame quality by Quality Metric value and transmits that into Reverse Power Control, practices Rx Frame Selection in case of handoff.
(4) Tx Interrupt Server
It makes Forward Frame every 20ms and also transmits that. In case of handoff, it multicasts to maximum three BTSs.
(5) Layer2 Task
It processes ACK_SEQ, MSG_SEQ and ACK_REQ field of respective message to accomplish reliable message exchange between Mobile, CE and BS. It processes Ack of a receiving message and retransmits a transmitting message in case of necessity
(6) Callproc Task
It performs appropriate call processing according to signal from Mobile, CE and CCP.
(7) Handoff Task
In case of processing control message related to Handoff, it is according to handoff decision of CCP. And it performs corresponding handoff type. Handoff type is largely divided into SOFTER H/O, SOFT H/O and HARD H/O.
(8) Power Control Task
According to PMRM (Power Measurement Report Message) or Erasure Indicator Bit coming from Mobile, it performs Forward Power Control indicating Forward Traffic Channel Gain adjustment into CE every 20ms and indicates Reverse Traffic Power adjustment of Mobile through CE every 1.25ms, after checking FER of Reverse Traffic Frame
2.3.2.4 BSM Software
(1) CDMX (Configuration Data Manager eXecution)
1) Block Summary and Working Function A CDMX block manages some data such as operation parameter requested to perform Inherent function of BTS and BSC subsystems and hardware placement information. Also, the CDMX receives a command through manager link in BSM to supply coherence of data alternation and adaptation and processes that. And the CDMX saves the processed result in database and reports it to manager. The CDMX consists of a CDM_interface unit which makes corresponding function work by analyzing the message received from UIM (User Interface Manager), a PLD_access unit for PLD access and a Data_send unit for data transmission into subsystem. After classifying the received message, The CDMX process the command and sends the processing result to UIM
2) Block Flowchart
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The following Fig.2.12 describes CDMX block flowchart.
a. informs BIM that CDM is in normal state. b. sends the processing results received from UIM for mamager's command for
data processing.
c. In case of Data Change Request, send data to the CRM and receive result. d. receives a PLD Change Request Message from the APP e. sends processing result to the APP.
BIM UMH BSM APPs
a
c
CDMCRM UIM
b
d
e
PLD
Figure 2.12 CDMX block flowchart
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(2) SLX (System Loader Execution)
1) Block Summary and Working Function During initialization of CCP and ACP subsystem, a SLX loads application blocks performed in CDMA system into CCP and ACP. The SLX renew database to manage loading history according to location information and state of system loaded in case of performing loading of each subsystem. Function related to CCP out of Subsystem Restart and Block Switch function by MMC is processed by CPL. Function related to BCP, SIP and SVP is performed by inter-working with CPL, Booter of BCP, SIP, SVP, and PL. It supplies a loading history by MMC for manager. Also, The SLX removes specific block out of application blocks performed in each subsystem or adds application block to specific subsystem.
2) Block Flowchart
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The following Fig.2.13 describes SLX block flowchart.
CDM UIM FLM
SL
CBOOT ACP BOOTCPL
Figure 2.13 SLX Block Flowchart
(3) SMMX (Statistics Measurement Manager eXecution)
1) Block summary and working function A SMMX block requests BSC system to measure performance data. The SMMX processes statistics of the measured data, saves it and outputs it. Also, the SMMX outputs statistics report output according to user’s request by using a periodically
User’s Manual
receiving performance data in BSC system. The SMMX can stop and start the measurement on system. Software unit of SMM block consists of Command Processing Part, Signal Message Format Processing Part, Screen Output Format Part, and Database Processing Part. Command Processing Part processes command inputted by manager. Signal Message Format Processing Part formats the signal message which will be transmitted. Signal Message Unformatting Processing Part unformats the signal message. Screen Output Format Part outputs a statistical data on the BSM message output window. Database Processing Part manages the statistical database.
2) Block Flowchart The following Fig.2.14 describes SMMX block flowchart.
DCI
block
Message Queue
Message Queue
Figure 2.14 SMMX Block Flowchart
BIM block
Message Queue
SMM block
Memory Map
Statistics Database
UIM block
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