PDT (short for ''Professional Digital Trunking'' or ''Police Digital Trunking'') is an open industry standard for
trunked radio system
A trunked radio system is a two-way radio system that uses a control channel to automatically assign frequency channels to groups of user radios. In a traditional half-duplex land mobile radio system a group of users (a ''talkgroup'') with mobi ...
in China servicing
police wireless communications and
professional mobile radio
Professional mobile radio (also known as private mobile radio (PMR) in the UK) are person-to-person two-way radio voice communications systems which use portable, mobile, base station, and dispatch console radios. PMR radio systems are based on ...
.
The standard is being maintained by the ''Professional Digital Trunking System Industry Association'', an association of major vendors of wireless communications equipment in China. The association was formed with the help from Information and Communications Bureau of the
Ministry of Public Security.
The standard was used to facilitate the
digital transformation
Digital transformation is the adoption of digital technology by an organization to digitize non-digital products, services or operations. The goal for its implementation is to increase value through innovation, invention, customer experience or e ...
of the Ministry's existing MPT analogue trunking system.
Government policy supporting this domestic standard had led to the abolishment of previous GA/T industry standards based on the European
TETRA standard.
The initial major contributor of the standard were
Hytera Communications and Vigor Communications(WANGE). Vigor was also the first enterprise to produce PDT two-way radio products.
Features
Features of PDT system:
* All-IP architecture; independent control and carrier; independent call processing and service switching; easy to develop new applications.
* Various networking modes; flexible and convenient networking; highly scalable.
* Distributed system architecture; multi-layered fault mitigation design; high reliability and efficiency.
* Hardware platform built with universal devices such as switches and routers; mature technologies and low costs.
* Module-based design; customizable system functions.
* Based on the universal SNMP network management standard; easy to manage and maintain.
* The core network is interoperable with different systems such as DMR (
Digital Mobile Radio
Digital mobile radio (DMR) is a specification for commercial products so they can interoperate. It is defined by a standard created by the European Telecommunications Standards Institute (ETSI), and is designed to be low-cost and easy to use. DMR, ...
) and Tetra (
Terrestrial Trunked Radio
Terrestrial Trunked Radio (TETRA; formerly known as Trans-European Trunked Radio), a European standard for a trunked radio system, is a professional mobile radio and two-way transceiver specification. TETRA was specifically designed for use by go ...
).
References
External links
PDT Website
Law enforcement in China
Standards of the People's Republic of China
Trunked radio systems
{{PRChina-stub