Here You Get how 3G work, Go inside WCDMA Technology and wcdma rf optimization.
Site surveys allow us to measure the level of coverage that the macro network provides the building, check out the details and understand the environment and existing objects in the target buildings. Preparations for these surveys should include a site best server coverage area, showing all the surrounding cells in the neighborhood. This plot can … Read more
Network planning tools can automate iterative process required for manual planning. In the past few years, there were few tools. Some of them can plan indoor and outdoor networks, or at least include a few outdoor cells for evaluation of interference or transfer between systems. When selecting the indoor network planning tool, set the following … Read more
After completion of the design, installation takes place. For aesthetic reasons, the components of a closed system is often deliberately hidden. As a result, after installation, it is difficult to confirm or check them in full. Skill during installation, therefore, very important, because troubleshooting defective components is difficult. Perform a complete examination and sample testing … Read more
During detailed design, the main task is to determine the exact type and placement of the Antenna, to ensure sufficient coverage to meet the requirements. During this process, the physical properties of the Antenna must be kept in mind, as they may affect the design of the Antenna system. Many indoor Antennas are available with … Read more
Indoor solutions required? First, to analyze whether the macro cell coverage is enough. Even if the macro analysis of the project and the macro network test-drive network has sufficient coverage, additional site survey should confirm that all the target areas are covered and, more importantly, the fact that the dominant server can be found in … Read more
After you have defined the requirements for coverage and capacity, the first step in the planning of the internal network is to make an initial assessment of which roofing solution to use. To determine the components of the solution radio, locations macro cell should be analyzed to see if you can find a dominant macro … Read more
Understanding on Motley–Keenan Model for WCDMA Site-specific models of indoor propagation, as the name implies, take the specific characteristics of a particular building as their input. Often these models count the number of walls, floors or other obstacles between the transmitter and the receiver to produce a value of attenuation for propagation along that path. … Read more
In particular, for application indoors, it is often desirable to predict the service area of a repeater or microelement based power CPICH. In the repeater installation and commissioning, CPICH power can be determined by measuring the output (or input) Ec / No and the received signal. The objective is to estimate the range of the … Read more
The table shows representative Link Downlink budget for 3G. Fluctuations in the signal can be represented by a scale and small effects such models are typically used for external circulation. Indoor shadowing results in a large-scale signal change, which may be represented by a log-normal distribution in a manner similar to 3G macro propagation model … Read more
A DAS contains the same active components present in a DAS passive, with the addition of active devices such as amplifiers, repeaters or amplifiers bidirectional (BDAS) to amplify and / or radio signals shipping. This enables an active DAS to cover a much larger area of a passive DAS. Active distribution systems, however, are more … Read more