Within the frame of the MVM TFP switch over project the switch over procedure of the circuits had been finished based on the final construction drawings made by ENTEL Ltd. In the next phase of the project the as-built documents will be prepared.

Maintenance and development of a reliable, economical self supporting telecommunications network providing quality service is indispensable to supply the basic activities of MVM Rt. The countrywide network which is especially designed for the Hungarian Power Companies Ltd. and its partners involves few dozens junctions supplied by transmission equipments. Following the several years of preparation and planning work the investment project had been completed in 2003. In the last phase we took part in the circuit change-over procedure of the new SDH (Synchronized Digital Hierarchy) system.

The change-over procedure from the old transmission system and from the exterior supplier systems had been finalized in August 2003. The preparation of the change-over plan and the right schedule had to be met extremely strict requirements. The experts of our company fulfilled the tasks successfully based on the experience gained during the several years of cooperation with MVM Rt. The result is a modern reliable transmission network, which can satisfy the telecommunications needs of the power industry in accordance with the rigorous industrial regulations of MVM Rt.

Entel Ltd. has been completed an assessment for the Communications Authority, Hungary. The target of the assessments: The effect of the spread of informatics within the market surveillance activities of the Communications Authority, Hungary during the last three years. The first part of the task was to develop the methodology of the collection of data. The second part was a comprehensive data collection from informatics systems, based on filled forms and personal interviews. The assessment has been closed successfully at the end of June, 2003 delivering the summary documentation containing the results.

On 22.july 2003.- we have finished commissioning of special repeater sites, for Vodafone Rt. These special repeater stations donor and remote, has been delivered by our Swedish partner AVITEC AB. for trial. Setting up and commisioned the sites we solved the missing coverage for next village Miklósfa from Nagykanizsa. We all hope, that using these beneficial solutions, will support Vodafone future coverage success.

Providing cost-effective coverage !
•Operator’s dilemma: Networks need to be rolled out quickly and with a limited budget, with focus on coverage and not on capacity
Solution: Frequency Translating Repeaters
–Low cost alternative to base stations
–Easier site acquisition
–No costs for transmission, MW link etc.
–Reduced size and power requirements
–Rural, urban, and building coverage (no LOS needed)
–Quick network deployment

Using Repeater Maintenance Console sofware
•Windows based interface
•Live display of all measured parameters
•Detailed traffic information
•Detailed alarm log
•Possibility to switch to terminal mode (command mode) for advanced trouble shooting
•EXTREMELY EASY TO USE!
Using Avitec’s Element Manager software enables remote access for the operators staff, from the operators OMC.
In an example for highway coverage one two-sector BTS feeds two frequency shifting repeaters, each covering an area comparable to base station. No additional capacity is required – the purpose is to get maximum coverage out of the one BTS, with one connection point for transmission (microwave link or fixed line). The frequency shifting repeater can even be configured to retransmit two BCCH’s, each in one direction, further expanding the coverage area from one site. Since the antenna isolation requirements are extremely low for the frequency shifting repeaters, Omni directional antennas can be used at the remote site to get extremely good coverage.

Low Cost – Low Traffic Coverage with Frequency
Shifting Repeaters
The example shows coverage extension in an area with low traffic by using frequency
shifting.

A two sector BTS is extended with two frequency shifting repeaters. Both donor units are mounted at the base station site and connected to the base station via directional
couplers. Each repeater has different link frequencies and then transmits the frequency of the opposite base station sector, thus minimizing interference or multipath problems. A normal handover is performed between the repeater coverage area and the neighboring base station coverage area.
Since the installation of frequency shifting repeaters doesn’t require very much antenna isolation, the requirements for the remote site are very moderate.

After the succesful accomplishment of TFP test ENTEL Kft. was requested by MVM Rt. to planning the integration.

In this project we will prepare the integration plans for more then fifty sites of TFP, and after the integration we will prepare the as built documentations as well.

During the integration our experts will provide technical support for MVM Rt.

The first phase of a general review based on the assignment of HIF has been successfully accomplished at 9th May, 2003. As informatics getting more and more dominant in telecommunications, the review – as one of the target of the project – is intended to provide an overall picture about what kind of effect this phenomenon has for the supervisory activity of the authority.
During the first phase of the project ENTEL Ltd. has been developed the methodology of the collection of data. This methodology is applied for the second phase, namely for the personal interviews, and the detailed reviews based on filled forms. The final accomplishment of the project is planned by the end of June.

April 2003: in a public procurement tender we were granted the contract for the investigation of the effects of IT on the work of the communications authority and on market supervision (an assignment from HIF).

April 2003: with our assistance, an expert of our partner, Swedish Avitec, held a training course for employees of Vodafone (VRAM Rt.) on the operation of GSM repeater stations.

April 2003: we assisted the successful completion of the integrated availability test of the telecommunications network of MVM Rt.