Site Survey ideas for WCDMA 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 … Read more
WCDMA Indoor antenna Solution 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 … Read more
WCDMA Antenna System Design in Detail 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. … Read more
Indoor deployment and optimization of the system after deployment 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 … Read more
How Many Categories of WCDMA indoor network planning tools 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 … Read more
Access The LTE Network LTE access network and E-UTRAN, the network comprises a eNodeBs, as shown in Fig. For the normal user traffic (as opposed to transmission), there is no centralized controller in E-UTRAN, thus, E-UTRAN architecture is called flat. The eNodeBs are usually inter-connected together through an interface known as X2, and the EPC … Read more
How Procedures Non-access (NAS) in LTE NAS procedures, especially procedures for managing connections, essentially similar to UMTS. Main change UMTS is that the EPS allows the union of certain procedures to ensure a more rapid establishment of communication and media. MME creates a context of the UE, when the UE is turned on and attaches … Read more
CN (SAE called EPC) is responsible for the overall monitoring of the UE and the establishment media. Main logical nodes of the EPC are: PDN Gateway (P-GW) Serving GateWay (S-GW) Mobility Management Entity (MME) Evolved Serving Mobile Location Centre (E-SMLC) In addition to these nodes, EPC also includes other logical nodes and functions like a … Read more
A Brief notes on LTE Network Architecture The EPS provides a user with an IP connection to PDN for Internet access, as well as to run services, such as VoIP. EPS bearer is usually associated with QoS. Some carriers may be installed to the user, in order to ensure that the various different streams or … Read more
Passive device bi-directional couplers and combiners. Splitters route signals different frequencies that are present on the same supply line into separate lines for each frequency. Adders perform the same function in reverse order. They accumulate signals of different frequencies that are present on separate feed lines on one channel line. They support the nominal impedance of … Read more