Caltta "2+4" Wideband-Narrowband Convergence Public Safety Digital Trunking Solution

Caltta provides a "2+4" Wideband-Narrowband Convergence solution for public safety digital trunking, integrating PDT and LTE technologies to enhance law enforcement capabilities.

Customer Needs

In response to the principle of leveraging information technology for increased police force, efficiency, and combat effectiveness, Caltta actively promotes the development of a PDT+LTE wideband-narrowband convergence wireless trunking network. This initiative aims to digitize public safety trunking, meet the demand for wireless services and information security, improve officer combat effectiveness, and enable:

Visual command and control of police forces
Emergency multimedia dispatch
Mobile policing
Mobile office applications
Police and vehicle positioning
Mobile video transmission
Mobile law enforcement
On-site incident reporting
Two-way video transmission
Intelligence gathering
Emergency communication support
High-definition image transmission
Data query

Solution Overview

The "2+4" Public Safety Digital Trunking Solution is designed with principles of Chinese standards, security, reliability, open interfaces, and smooth evolution. It offers integrated dispatch, services, networking, and terminals for both PDT and LTE trunking. The solution supports critical voice and data tasks, enabling visual command and control, multimedia trunking, high-definition mobile video transmission, and modern public safety applications like mobile policing. It extends public safety applications from the desktop to the street, transforms information collection from fixed to mobile, and interconnects isolated public safety systems, comprehensively enhancing the command and control capabilities of public safety officers.

Integrated Networking: Flexible combination of PDT/LTE base stations, with coverage tailored to needs. Shared infrastructure improves investment utilization.

Integrated Services: Multimedia dispatch, video conferencing, video transmission, and positioning services are handled in one place. Unified access for data services.

Integrated Terminals: Interoperable PTT and data connectivity across various terminals for multi-terminal collaboration. Innovative PDT/LTE dual-mode terminals combine functionalities of walkie-talkies, police terminals, and body cameras.

Integrated Switching: LTE trunking and PDT share the core network for seamless integration.

Solution Advantages

PDT+LTE Integrated Networking: Unified dispatch and command. Mixed PDT and LTE group calls and mixed calls. Concurrent voice and multimedia video dispatch.
Wireless Broadband: LTE technology provides data rates up to 100Mbps, supporting high-definition video transmission. Signaling delay is less than 100ms, ensuring rapid command delivery. Solves the last-mile problem for public safety broadband data access.
Precise Coverage: PDT ensures seamless coverage within the jurisdiction for all-member communication and emergency command. LTE provides mobile policing and visual command in key urban areas (high-incident areas, commercial/financial centers, densely populated areas) and critical locations (traffic checkpoints, city entrances/exits, major road intersections, government building entrances).
Secure and Reliable: Public safety-grade end-to-end encryption ensures secure interconnection with public safety information systems. Professional-grade large-scale commercial platforms have been tested by users worldwide.
Leading Technology: Multi-carrier digital modulation technology allows a single RF unit to support 4 carriers. Digital intermediate frequency combining technology and external RF units double the cell coverage distance. Industry-leading DPD + Doherty technology enhances amplifier efficiency, saving 80% of power consumption.
Smooth Evolution: A unified SDR soft base station platform supports digital-analog compatibility and smooth evolution to LTE, protecting user investment.

Related Products

"2+4" End-to-End Products

Core Network

Unified Trunking Core Network: ZXTS eTC1000, ZXTS eTC500

Base Station

Baseband Processing Unit (BBU): ZXSDR B8200, ZXSDR B8300
LTE Radio Remote Unit (RRU): ZXSDR R8972(E), ZXSDR R8968
PDT Radio Remote Unit (RRU): ZXSDR R8881

Terminals

GH900, PH790, PM790, GH880, GH650, GM655
USB Dongle GD100, GP500
Indoor CPE, Outdoor CPE

Emergency Communication Command Vehicle

Caltta's emergency communication command vehicles provide multi-standard communication command systems with powerful dispatch capabilities and rich multimedia services. They are suitable for scenarios requiring rapid on-site establishment of emergency command platforms, such as fires, earthquakes, emergency responses, and large events.

System Components: Communication system equipment, antenna system, transmission system (Satellite/Fiber/E1/IP), interconnection with other systems (via internet gateway to analog trunking, public network 2G/3G/4G, PSTN).

Portable Emergency Command System

The portable emergency command system features small size, light weight, rich functionality, and high integration. It can be easily carried by a single person or air-dropped to the incident site, enabling rapid deployment of multimedia trunking dispatch services. It is widely used in scenarios like fires and earthquake disasters where vehicles cannot reach the site, providing command and dispatch services.

System Components: Video conferencing, positioning, IP transmission, wired connections, VSAT, MW, 3/4G public network, single soldier terminals, control balls, IP dispatch consoles, CPE, portable masts, portable generators.

Contact Information

Caltta

Address: Yan 1, Zhongxing Communication Industrial Park, Xili, Nanshan District, Shenzhen

Phone: +86-755-26774767

Postal Code: 518055

Website: www.caltta.com

Privacy Statement: As an equipment supplier and solution provider, Caltta will process personal data in compliance with applicable laws and regulations, employing techniques such as anonymization and data encryption, along with necessary security management measures to ensure the security of personal data.

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