I have some Parameters and Counters documents of 5G NR NSN (5G18 version). But these seem do not contain fully parameters/counters of 5G NSN.

So if anyone has the full documents (5G19 or newer version), please share them!

Link 5G18 NSN parameters and counters:

https://mega.nz/#!XpQTmAYS!3gWfQZATj...JpmO9_LtzymOaw ]]>

Below are the NOKIA training documents,.

Pls enjoy.

RA57200-V-19A_01 - 5G_Link_Budget.rar

2019-11-30_13-38-50.jpg

https://mega.nz/#!01wTjQYQ!XgmlvPVHJ...iun5RshN62hHio ]]>

Book for MIMO.

thanks

Can anybody share vendors kpi formulas for 5G NR.

Thanks a lot. ]]>

Below is the 5G CDRX understand by myself.

Attachement: 5G NR CDRX understand with Qualcomm log.zip

2019-11-15_10-30-13.jpg

BR

Dennielone

https://www.4shared.com/office/OS2Zf...xpress_5G.html ]]>

The following article is intended mainly to understand the difference and the relation between dimensioning 5G network based on link budget calculation and detail planning using planning tool.

Hopefully by going through the article, following doubts will be cleared:

- What is 5G link budget?
- What are the use cases of 5G link budget calculation?
- Can we design a network just based on link budget calculation and ignore the use of planning tool?
- Can link budget output be used as inputs for planning tool? if yes which are theses inputs?
- It is possible to use planning tool outputs into link budget calculation?
- Does link budget calculation compliment and verify a network design ?

I have prepared the following figure with some example values to illustrate the different inputs parameters used for the link budget calculation:

The following formula is used to calculate the 5G link budget received signal level (RSL) :

Signal Level at receiver (dBm) = gNodeB transmit power (dBm) – 10 x log10 (subcarrier quantity) + gNodeB antenna gain (dBi) – gNodeB cable loss (dB) – Path loss (dB) - penetration loss (dB) – foliage loss (dB) – body block loss (dB) – interference margin (dB) – rain/ice margin (dB) – slow fading margin (dB) – body block loss (dB) + UE antenna gain (dB) .....................(1)

In the above figure example the RSL calculated value is 77 dBm and the reception sensitivity is -93 and the link status is "Pass".

Usually the limiting link is the Up-link and it is recommended to calculate Down-link and Up-link and consider the worst

To calculate the path loss, we need to use suitable propagation model for 5G (5G use 3D propagation models defined in 3GPP 36.873. The UMa, UMi, and RMa models are applicable to frequency bands 2–6 GHz and then are extended to 0.5–100 GHz in 3GPP 38.901).[For example and if we consider the UMa model for Line Of Sight (LOS) case, the path loss formula is given as following :

It is clear from above formula and to calculate the path loss, we require the information of "

If the cell radius correspond to max cell range, then the path loss will correspond to maximum allowed path loss (MAPL).

Once we know the value of path loss , The Noise Figure and SINR are vendor specific values which depend mainly on hardware performance and MCS table (Modulation Coding Scheme).

You can implement the formula (1) into excel and vary the cell radius until the receive signal level is better or equal to receiver sensitivity.

In case you want to conclude directly what will be the cell radius that correspond to specific reception sensitivity , we can use the link budget formula (1) and replace the Signal Level at receiver (dBm) with the reception sensitivity.The reception sensitivity is equal to:

Example if path loss is equal to 78.4 dB , then the Cell radius is 120m !

Looking back to path loss formula (4), we conclude that the main factor controlling the value of path loss is the demodulation threshold SINR (dB) which means for higher SINR values (better modulation), the path loss is lower and therefore the Cell radius is smaller ! ... more number of 5G base stations are required

Till now , hope you have good idea about link budget calculation and if so , it is clear that link budget allow us to either calculate the cell radius (R) by a given

The reception sensitivity is mainly based on the capacity requirements (throughput) as SINR value is directly linked to how much throughput we want to achieve at the cell edge ![/COLOR]

By knowing the cell radius (R), we can conclude the square area cover by one base station using below formula :[/COLOR]

Finally, the required 5G base station is calculated as following

Knowing the number 5G base station required for given cluster is very much required for pre-sale activities since creating the project in planning tool is time taking.One of the main use case of link budget is pre-sale activity for 5G deployment proposal. Knowing the number of 5G sites will help the vendor and operator to estimate the cost and effort. Link budget calculation allow us also to estimate the achieved capacity based on different quality requirements (SINR).

The answer is "NO" as the link budget calculation will not provide the location of sites (latitude and longitude). Also even if the sites location are given based on existing 4G location, there is no option in link budget to run a 5G

As said earlier, one of the main outputs of link budget are:

- Cell radius
- Number of 5G required base station
- Achieved capacity and throughput (at cell edge)

It is possible also to get above outputs using a planning tool but it will require time to create the project and import the physical data, maps , network configuration and running of prediction and analysis.

The key factor for both calculation (link budget or planning tool) is the used propagation model ! Even same propagation model is used in Link budget and planning tool, the cell radius will be different ! The planning tool use complex calculation based on the terrain model, clutter and buildings information and consider the propagation factors such as reflection, diffraction and details calculation for the attenuation caused by different obstacle (building, trees,..).

Detail analysis on planning tool require to run Monte Carlo simulation and that is more time taking and detail inputs are required (user maps,..). To run static analysis in planning tool some of the inputs like the Below figure is showing NR Analysis settings in Planet tool:

In case 3D maps are available, it is possible to create 5G project and place different sites into different clutter type (Ex: Dense Urban, Urban, Sub Urban and Rural) and run 3D prediction (using 3D models like Planet P3M, Planet Universal model, Atoll Aster or Atoll CrossWave,..). The prediction can be further calibrated with CW using CW measurement.

If no much deviation in the used propagation model, link budget may provide fair estimation of the number of sites which can be fine tuned further with deep dive design using planning tool.To conclude the article, the link budget calculation is a fast way to estimate the coverage and capacity requirements and the output is not necessary to be correlated to planning tool based radio design.

Thanks and hope you have enjoyed reading ]]>