What is rtwp

In UMTS, the uplink interference may vary due to several factors, such as the number of users in the cell, the Service, Connection Types and Conditions of Radio, etc… As our goal is to always be as simple as possible, we will not delve in terms of formulas or concepts involved.

Typical Values Ok, we know that RTWP can help us in checking the uplink interference, then we need to know its typical values. Values around dBm indicate that the cell has some uplink interferers. If the value is around dBm, the situation is ugly, with strong uplink interferers. But what can we do when we find bad values?

If RTWP is not at acceptable levels, some actions should be taken. In practice to find - and eliminate - problems of interference is one of the biggest challenges in our area. Conclusion In this brief tutorial, we learn what is RTWP, and that the ideal typical value is about What's the worst RTWP value from interference source?

The major finding of this study is the design of the GUI tool to minimize the time taken to resolve the RTWP issue in the Huawei NodeB both in a single site and in multiple sites, to conduct consistency checks for the software parameters, and finally to identify the root cause of the RTWP alarm.

The GUI tool shows an operation log, which can be used by the administrator for maintenance records, and it also contains a help guide that gives the user more information about the functionality of each button.

Mohammed, H. Mohammed, Hisham. Mohammed H. What is RTWP? It also has importance in the capacity management, as it provides information for the Congestion Control regarding Uplink Interference.

As our goal is to always be as simple as possible, we will not delve in terms of formulas or concepts involved. We will then know the typical values, and know what must be done in case of problems.

Typical Values Ok, we know that RTWP can help us in checking the uplink interference, then we need to know its typical values. Values around dBm indicate that the cell has some uplink interferers.

If the value is around dBm, the situation is ugly, with strong uplink interferers. However, the maximum and minimum values are recommended only as auxiliary or reference, since they may have been caused by a peak of access, or even been forced to have a momentary value due to some algorithm i.

What happens is that when its value is 'bad', it's actually indicating the presence of interference - the latter being responsible for degradation. But what can we do when we find bad values? If RTWP is not at acceptable levels, some actions should be taken. This is the most common case, especially in cases of new activations.

Once verified the parameter settings, the next step is the physical examination, especially jumpers and cables, often partially reversed. Hope is this information is useful. RTWP is shortened from received total wideband power, consisting of signal power and noise power.

RSSI is shortened from received signal strength indicator. Possible Causes1. The setting of attenuation on the RX channel of the RF unit is incorrect. External interferences exist only on the main or diversity antenna of the RF unit. The feeder connected to the RF unit is faulty, which results in a high passive intermodulation power of the main or diversity antenna. The feeder installation is improper. For example, the feeder connector is loose, soaked or damaged, or the feeder is deformed.

The setting of attenuation of the RF unit is incorrect. The TMA is faulty. The RX channel of the RF unit is faulty. For example, the low-noise amplifier, frequency mixer, analog to digital converter ADC , or field programmable gate array FPGA is faulty.