Before the 4G - changes among leaders

Generation Mobile" - a new era in telecommunications. The data rates offered by the 4G systems will allow
to transmit HD television to mobile devices.

The year 2010 promises to be a breakthrough in wireless communications. Everything seems to indicate that the 4G standard will be adopted and practically implemented by the first commercial networks using this technology. The promise of huge investment gives rise to increasing speculation which of the industry tycoons is best prepared to become a world leader in wireless communications. Last year, the leader was Ericsson (36% market share), the second place took Nokia (20%), and the third - Huawei (11%). However, this year brings some significant change to that ranking. According to forecasts, by the end of the year the annual turnover of Ericsson will come to US$ 26 billion, of Huawei - 18.4 billion, and of Nokia - 15.7 billion. The Chinese giant will probably increase sales by 21%, just opposite to Nokia with about 22% drop in the figure.

Is there a chance that the trend of rapid growth of Huawei's market position will continue in the next year?

Huawei is a world leader of TD - LTE technology which has been selected by China Mobile as the basis for the construction of Chinese 4G network. Installation of the infrastructure will start as early in the beginning of 2010. Huawei will be the primary equipment supplier. Already in May, at the Expo 2010 in Shanghai, a pilot 4G network will start operation in China. The potential of the Chinese market may be crucial, but equally important is the winning of the prestigious tender for 4G in Norway. Huawei beat Ericsson in the Nordic market, which was quite a sensation. Advanced talks between Vodafone and Huawei on 4G in the German market may indicate that it will be another success of the Chinese supplier. Similar negotiations are conducted in Spain. Great potential of Huawei allows for rapid growth, so in 2010 it may become a global leader in wireless technologies.

The 4G system should guarantee mobile data transfer rates of 100 Mbps, and in the case of fixed equipment - 1 Gbps. Development of mobile technology in the direction of 4G is currently achieved mainly in two ways: WiMAX and LTE.
In November this year, ITU (International Telecommunication Union) approved 6 solutions as the basis for the final decision on the adoption of international standard, among them LTE (including Chinese TD-LTE) and WiMAX 2.0 (802.16m). Final adoption of the standard is to be announced on next year's October. Specialists estimate that China may own more than 40% of patents concerning leading telecommunications technologies.

ULTIAIR employed by a city's ISP

The investor, Internet service provider in Krakow, required high performance and reliability of radio links, with high throughput in the whole backbone network. The main goal was broadband (30 Mbps) wireless connectivity to the central node and between the root node and branch nodes scattered in Nowa Huta district.

The contractor, Zax.pl, has chosen ULTIAIR devices. The family of professional outdoor access points is characterized by short delays and high throughput. The devices have been designed to create efficient wireless IP CCTV and ISP networks.
They operate in unlicensed 5GHz band. Integration of the transceiver (RouterBoard with Mikrotik system) and antenna into one weather-resistant housing enables the installer to perform the job quickly, without additional operations. The outdoor housing of IP 66 class guarantees full protection against adverse weather conditions and corrosive environments.

The wireless network allows to integrate the nodes of the system and ensures easy development of the infrastructure in the future. Everyday operation of the network confirms the guidelines - high throughput and stable work.

Wireless Internet in Cracow

Whre can you get access to wireless Internet in Cracow? Here you can see the plan.

Raptor - for wireless network

Raptor for outdoor operation as access point and wireless client, compliant with 802.11a standard (5 GHz band). It allows point-to-point or point-to-multipoint links. The device is managed by www interface, which permits easy configuration including setting up more advanced parameters. The main use for raptors is for city monitoring systems. The main problems there are caused by extensiveness of the systems - transmission of cameras' images to monitoring center and commands to the cameras (PTZ control).

IP CCTV installations have become the mainstream nowadays. At current stage of IP CCTV there is no problem. At current stage of IP CCTV there is no problem with transmitting data in central parts of cities, using common Internet infrastructure with adequate bandwidth. But the trouble begins when the system should cover some more isolated locations with limited connectivity.

Then the only feasible solution is doing individual wireless network, using WLAN technology.

Both for transmission of video stream and PTZ commands there can be used access points integrated with antennas, powered with use of PoE technology. There may be employed sector antennas, as well as the system itself can be divided into easily manageable sectors.

Practical potential of WLAN systems

• wireless access to local networks in homes, offices, businesses
  
• wireless access to public hot-spots at airports, stations, in coffee shops
  
• point-to-point links (bridging of LANs, telemetry, remote control, remote monitoring)
• delivery of Internet connectivity (in cities and in the country)
• redundancy for wired links (critical connectivity applications)

Wireless CCTV monitoring system

IP cameras win the market share battle due to simple installation and configuration. But the distance between buildings is often too large to use standard UTP/ FTP cable. An excellent solution to such a problem is wireless transmission based on Raptor family of devices. Schemes and more informations:

Raptor family of devices.