mytelcolearning

What is poorest RSRP to deliver Service in LTE Hi readers you might be come across a situation when people can ask what will minimum RSRP to deliver good voice experience and throughput  Below are DT observation of one of metro in India with dense clutter  Average SINR - 5.3 Average PRB Utlization - 58.2 % Volte MOS Vs RSRP  Volte MOS always Good (>3.5) when coverage better than -105/-106 dBm There is drastically degradation in MOS post RSRP -105dBm  LTE User Throughput  Vs RSRP  User throughput always good (>3Mbps) when RSRP better than -110dBm -85/-95dBm is best delivery of throughout at reference RSRP Post -100dBm throughput start degrading more frequently

  Above are table prepared for 5G FR1/FR2 along with LTE transport bandwidth dimensioning outcome  Formulae Invole  Peak Cell DL TP_Gbps=(BW*SPE*(1+0.1)*DL Share)/1000  { 0.1 is Overhead} Average Cell DL TP_Gbps=(BW*SPE*(1+0.1)*DL Share)/1000  { 0.1 is Overhead} Peak Transport BW_Gbps=Peak Cell DL TP_Gbps+(N-1)*Average Cell DL TP_Gbps { N is no of Cells} Average Transport BW_Gbps=N*Average Cell DL TP_Gbps{ N is no of Cells} Note:- In initial phase of deployement, there are two option to dimention TX bandwidth  1. Cell throughput as above  2. Single user Cell Throughput  approx. equal  Single User Throughput  So there may be 2 types of operator  Who do not afford for a regressive testing for required capacity   They can user single user throughput as Cell throughput in above formulae to calcultae TX BW requirement  Who wish to design and do proper dimensioning below steps need to take  How many concurrent users ca...

Deployment of 5G network can have different combination of technology i.e., NSA (Non-Stand-alone) and SA (Stand-alone), different band combinations and various number of frequency layers.Below details will be limited to NSA ENDC deployments only Multilayer Strategy Selection-different factors 1.Functionality or Performance of existing network The layering strategy maybe need to be aligned with the existing LTE network when 5G is introduced. For instance, in the early-stage coverage maybe more important than throughput. From commercial aspect the 5G symbol on the subscribers' UE maybe important.In other cases, the NR layer maybe used to offload congested LTE layers, thus pushing LTE users from a specific LTE layer to anchor layer (ENDC) or straight to NR (for SA). The choice or preference of LTE layer in certain clutter will also determine the choice of NR layer for the case of ENDC. For example, in rural area LTE 900 maybe preferred due to coverage, thus only NR layers that can be ...

SmartViser team have done several smartphones testing  in  lab ranging from entry-level to flagship, with various chipsets from Qualcomm to Exynos and MediaTek. Several smartphones overheated after only 20 minutes of operation while in 5G, despite all testing performed exactly in the same conditions. These conditions included aspects of the environment like an office with Air Con at 16 degrees Celsius as well as ensuring the same network conditions with good 5G coverage. SmartViser team testing results for the smartphones identified 3 main groups: GROUP 1 Smartphone did not overheat and continued with the data transfer for the duration of the testing.  GROUP 2 The smartphone reached 48 degrees after 20 minutes. As the temperature continued to increase, the smartphone displayed an error message. The image below shows how the temperature was rising in correlation with the data throughput usage. Group 3 This group was the most interesting one for results. The sma...