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GA/T 1056-2013: Police digital trunking communication system-General technical specifications
GA/T 1056-2013
GA
PUBLIC SECURITY INDUSTRY STANDARD
OF THE PEOPLE?€?S REPUBLIC OF CHINA
ICS 33.060.01
A 90
Police digital trunking communication system - General
technical specifications
ISSUED ON: MARCH 20, 2013
IMPLEMENTED ON: MARCH 20, 2013
Issued by: Ministry of Public Security of the People's Republic of China
Table of Contents
Foreword ... 4
Introduction ... 5
1 Scope ... 6
2 Normative references ... 6
3 Terms and definitions ... 7
3.1 Terms and definitions ... 7
3.2 Abbreviations ... 9
4 System technical characteristics ... 9
4.1 Basic technical system ... 9
4.2 Basic system services ... 10
4.3 Basic protocols and signaling ... 11
4.4 System working modes ... 11
4.5 Call setup time ... 11
5 System configuration and functional requirements ... 12
5.1 System configuration ... 12
Figure 1 -- Schematic diagram of network infrastructure ... 12
5.2 Functional requirements ... 13
Table 1 -- Main functional requirements of PDT equipment ... 18
5.3 Other requirements ... 19
6 Frequency planning ... 20
6.1 Operating frequency band ... 20
6.2 Frequency number ... 20
Table 2 -- Single-band frequency numbering ... 21
Table 3 -- Dual-band frequency 1 numbering ... 21
Table 4 -- Dual-band frequency 2 numbering ... 22
6.3 Frequency grouping ... 22
7 Address and identification code ... 22
7.1 System parameters ... 22
Figure 2 -- Structure diagram of wireless location identifier LAI ... 23
Table 5 -- Provincial code (Zone) allocation ... 23
Table 6 -- Allocation of regional identification numbers for the entire network ... 24
7.2 User number and address definition ... 24
Table 7 -- Air interface address ... 24
Table 8 -- Address space occupied by MPT1327 users ... 25
Table 9 -- Address space occupied by PDT users ... 25
Figure 3 -- Hierarchical group call number ... 28
7.3 Internal wire number ... 28
8 Network management ... 29
8.1 Network management overview... 29
8.2 Single-switching center network management ... 29
8.3 Multi-switching center network management ... 29
8.4 Basic functions of network management ... 29
8.5 Hierarchical architecture of network management ... 29
Figure 4 -- Virtual three-level management system ... 30
9 System Interconnection ... 30
9.1 Interconnection scope of PDT system ... 30
9.2 Interconnection between PDT systems ... 31
Figure 5 -- Fully peer-to-peer system interconnection network architecture ... 31
9.3 Interconnection between PDT and MPT 1327 ... 31
Figure 6 -- PDT-MPT 1327 interconnection structure ... 32
9.4 Interconnection between PDT and other heterogeneous systems ... 32
10 Basic performance indicators of channel equipment ... 33
10.1 Overview of channel equipment ... 33
10.2 Overall performance indicators ... 33
Table 10 -- Overall performance indicators of channel equipment ... 33
10.3 Base station RF indicators ... 33
Table 11 -- RF specifications of base station transmitters and receivers ... 34
10.4 RF indicators of handheld station ... 34
Table 12 -- RF indicators of the transmitter and receiver of the handheld station ... 34
10.5 RF indicators of vehicle-mounted station ... 35
Table 13 -- RF indicators of the vehicle-mounted station's transmitter and receiver ... 35
11 Secure encryption ... 36
Figure 7 -- Security mechanism diagram ... 37
12 Electrical safety ... 37
13 Power adaptability ... 37
14 Mechanical structure safety ... 38
14.1 Structure ... 38
14.2 Surface temperature ... 38
15 Environmental and electromagnetic compatibility requirements ... 38
15.1 Environmental adaptability ... 38
15.2 Electromagnetic compatibility requirements ... 39
16 Reliability requirements ... 39
16.1 Channel equipment reliability ... 39
16.2 Reliability of control and link equipment... 39
17 Transportation and packaging requirements ... 39
Police digital trunking communication system - General
technical specifications
1 Scope
This Standard specifies the technical characteristics, system composition and functional
requirements, operating frequency band, address and identification code, network
management, basic performance indicators of channel equipment, AC power supply
system, information security and confidentiality, environment and electromagnetic
compatibility, reliability and other general requirements of the police digital trunking
(PDT) communication system.
This Standard applies to the overall planning, network design, equipment development,
production, engineering construction and acceptance of the police digital trunking (PDT)
communication system.
2 Normative references
The following referenced documents are indispensable for the application of this
document. For dated references, only the edition cited applies. For undated references,
the latest edition of the referenced document (including any amendments) applies.
GB/T 7610-1987, Characteristics of pulse code modulation for voice-frequencies
GB/T 13426-1992, Reliability requirements and test methods for digital
communication equipment
GB/T 14013-1992, Mobile communication equipment -- Transport package
GB/T 15540-2006, EMC specification and test methods for land mobile
communication equipment
GB/T 15844.3-1995, Reliability requirements and test methods for radio transceiver
employing F3E emission used in the mobile services
GB/T 17626.2-2006, Electromagnetic compatibility (EMC) -- Testing and
measurement techniques -- Electrostatic discharge immunity test
GA 176-1998, Police automatic network scheme -- One of mobile communications
for public security
GA/T 1057-2013, Police digital trunking communication system. Technical
b) Wireless dispatch station: a dispatch station connected to the network
infrastructure through an air interface.
5.2 Functional requirements
5.2.1 Functional definition
5.2.1.1 Registration
Registration is the process of a mobile station initiating a network access request and
confirming it to the trunking system. Authentication may be required during registration.
5.2.1.2 Deregistration
Deregistration is the process in which the mobile station sends a notification to the
trunking system to exit the system.
5.2.1.3 Authentication
The process of verifying the legitimacy of the identities of the parties involved in a
communication.
5.2.1.4 Roaming
In a system consisting of multiple base stations connected to the Internet, a mobile
station registers with a base station other than its home base station and continues to
use the services provided by the system.
5.2.1.5 Voice private call
A voice private call is a point-to-point two-way voice call established between a mobile
station and other user terminals. The participants of a call are only the caller and the
called party. There are two types of voice private calls between mobile stations:
FOACSU and OACSU.
5.2.1.6 Voice group call
A voice group call is a point-to-multipoint voice call initiated by a mobile station or
dispatch station and involving multiple mobile stations.
5.2.1.7 Group call late entry
After a group call is established and before it ends, the control channel periodically
broadcasts the establishment information of the group call to ensure that mobile stations
that have just been turned on, roamed to this base station from other base stations, or
released from other talk groups can participate in the group call that has not yet ended.
5.2.1.8 Group call merge
After a group call is established but before it ends, if a mobile station calls the
established call group, the system will add the mobile station as the called party to the
established group call.
5.2.1.9 Broadcast call
Broadcast call is a special voice group call. After the call is established, only the caller
has the right to transmit on the service channel, and the called user has only the right to
receive. This can effectively prevent the called user from interfering with the caller's
transmission process.
5.2.1.10 Emergency call
An emergency call is a special call initiated by a user in an emergency situation. It has
the highest priority. When there are no channel resources, the system will release
channel resources of other low-level calls for emergency calls.
5.2.1.11 Priority call
Priority calls are calls that are given priority to obtain resources when the system is
busy. The way to obtain resources can be to seize the channel of low-priority calls or to
jump the queue in the queue.
5.2.1.12 Alarm
An alarm is when a user presses a special button on a mobile station device in an
emergency, sending a predefined status message to a pre-set destination (mobile station
or dispatch station) on the system control channel to notify other mobile stations or
dispatch stations that the user is in an emergency state.
5.2.1.13 Environmental monitoring
Environmental monitoring is a special call initiated by the dispatch station to the mobile
station to monitor the environmental sounds around the mobile station. The called
mobile station automatically turns on the transmitter and MIC on the traffic channel
specified by the system and sends the ambient sound to the dispatch station. During the
entire environmental monitoring process (monitoring establishment, monitoring
transmission, and monitoring termination), the human-machine interface status of the
mobile station, such as display, speaker, prompt tone, indicator light, etc., shall be
exactly the same as when in idle standby mode. During the environmental monitoring
process, if the mobile station user makes an outgoing call (including sending a short
message, etc.), the environmental monitoring shall be automatically terminated and
return to the control channel. The dispatch station can terminate an environmental
monitoring call established by it at any time.
5.2.1.14 Monitoring
Monitoring refers to the process of authorizing a user terminal to obtain voice on a
station. A remotely stunned mobile station can be resurrected through the air interface.
5.2.1.23 Resurrection
Resurrection is the process of using air interface signaling to unblock a remotely
stunned mobile station. The authorized network management terminal or dispatching
station can perform the resurrection operation to restore the mobile station to normal
working state.
5.2.1.24 Dynamic reorganization
Dynamic reorganization is the process of authorizing the network management terminal
or dispatching station to temporarily add a talk group (dynamic group) to the target
mobile station using air interface signaling. The newly added dynamic group of the
mobile station is valid until the signaling to delete the dynamic group is received. The
authorized network management terminal or dispatching station can also delete the
dynamic group in the target mobile station using air interface signaling.
5.2.1.25 Call restriction
Call restriction is the system's control over the calling rights of the mobile station. By
setting, its calling function is restricted. The mobile station can only make calls within
the scope of authority. Calls beyond the scope of authority will be rejected by the system.
5.2.1.26 Status message
Status message refers to the process of transmitting 7-bit message code between mobile
stations or between mobile stations and dispatch station using control channel. Status
message can be point-to-point single call or point-to-multipoint group call.
5.2.1.27 Short message
Short message is the process of transmitting limited length message between mobile
stations or between mobile stations and dispatch station by using control channel. Short
message can be point-to-point single call or point-to-multipoint group call. In PDT
system, the length of a single short message is 23 Chinese characters.
5.2.1.28 Satellite positioning information transmission
Satellite positioning information transmission refers to the process in which a mobile
station uploads its satellite positioning information using air interface signaling.
5.2.1.29 Network management
Network management is to ensure the normal operation of the system by performing
some parameter configuration, operation status monitoring, user profile management
and other operations. Network management shall at least have a set of functions such
as user management, configuration management, fault management, performance
management and security management.
5.2.1.30 End-to-end security
See GA/T 1059-2013.
5.2.1.31 Interconnection between PDT systems
The interconnection between PDT systems is to complete the information exchange
between PDT switching control centers using the specified interconnection protocol,
and realize functions such as inter-system roaming and call control.
5.2.1.32 Wired telephone calls
A wired telephone call is a call between a mobile station and wired telephones such as
PABX and PSTN using air interfaces and system gateway equipment.
5.2.1.33 Power control
The system uses air interface signaling to adjust the transmit power of the mobile station
to ensure communication quality and reduce the power consumption of the mobile
station.
5.2.1.34 Inclusive call
An inclusive call is a call initiated by a mobile station on a service channel where a call
has already been established, to pull other target mobile stations into the current service
channel call.
5.2.1.35 Call forwarding
Call forwarding is a service that forwards incoming calls to other pre-set numbers. Call
forwarding can be set and canceled by yourself or a third party. The forwarding
conditions are divided into unconditional forwarding and conditional forwarding.
5.2.1.36 Busy queuing
Busy queuing is the process in which when all system traffic channel resources are busy,
the system puts newly initiated calls into the call waiting queue and processes the calls
in the waiting queue when the system has idle resources.
5.2.1.37 Grouping data
Grouping data is a business process that uses the system's traffic channel and follows
the grouping data transmission...