ZTE showcased its new integrated communication system designed for mission-critical deployments by enterprises and emergency services.
Its Emergency Response Command System (ERCS) integrates multiple means of communication including wireless, wireline, trunking, microwave and satellite to implement commanding and dispatching, improving the speed and efficiency of emergency responses.
The ERCS uses softswitch, next-generation networks and distributed processing technologies, integrating different means of communication through gateways, including IP phones, 2G, 3G, 4G, trunking (350MHz analogue trunking, 800MHz digital trunking, and GoTa digital trunking), satellite, and microwave, for one-click dispatching.
The system supports outgoing calls (private call, group call, conference call), incoming calls (call waiting, private call), automatic call distribution (ACD), number blocking, called party control and alarm functions.
ERCS supports wired and wireless dispatching through one interface. For wired terminals and wireless terminals, the system supports a variety of service dispatching, such as group call, forced insertion, and forced release.
Wired and wireless terminals can implement transmission of voice: a wired terminal can call a wireless terminal or group, or a wireless terminal can call a wired terminal or group. In addition, the system provides an interface for the GIS platform.
ZTE does not have any TETRA products (as yet anyway) but displayed its line up of DMR professional mobile solutions. DMR networking solutions include: single relay DMR station; multi-DMR station with IP networking; simulcast; and full DMR trunking networks. Equipment includes two DMR repeaters and three hand-portable and one mobile radio terminals.
GoTa 4G products
ZTE’s GoTa 4G portfolio is designed to offer public safety and businesses an enterprise LTE range of products. It offers a range of six base band units of varying size, core network units and two 4G terminals, both of which support LTE and WCDMA and are capable of supporting roaming between private networks and PSTN.
Huawei showcased its 4G-based enterprise LTE (eLTE) broadband trunking solution, which integrates voice, video and data trunking, as well as multiple-network applications into a converged wireless broadband communication infrastructure.
The company believes it provides an ideal shared broadband network for multiple enterprises to exercise control and create synergy in managing communications.
However, many of the mission critical features found in the radio standards used by emergency services, such as TETRA, Tetrapol and P25, are not available in the LTE standard as yet.
That means any solution for key mission critical voice functionality, such as group call, push-to-talk over LTE, priority and pre-emption, has to be a proprietary solution from individual vendors for now.
Huawei has opted for an embedded solution, rather than an over the top solution to provide key mission critical applications and the necessary security, as it believes this approach provides a greater level of functionality. Its solution offers less than 300ms voice call set-up time and fully supports pre-emption, direct mode, emergency call, end-to-end QoS and end-to-end encryption.
Huawei’s eLTE solution uses the same hardware it supplies to mobile network operators and is multi-band (400MHz to 23GHz). It offers flexible networking from: 2 to 30 sites; 1 site; ECV; and interconnection to TETRA, PSTN, and public land mobile networks.
The company has also come up with mobile solutions including its eLTE Rapid product, which weighs just 35kg and can be carried in a man portable backpack. It has a range of 5km coverage and can support up to 50 users. A larger vehicle mounted system also has a 5km coverage range and supports up to 100 users.
Beyond that, Huawei offers its eSCN230 – a 2U LTE integrated EPC (evolved packet core), which is designed to provide a compact, cost-effective solution suited for medium-sized and small networks. Devices and accessories include the EP680 and EP680 Ex handheld radios (IP67-rated), the EG860 mobile radio and the eH811 LTE broadcast handset.