Enextgen Wireless through its flagship report – the National Independent Wireless Broadband Quality Report (NIWBQR), provides independent account on the quality of Radio Frequency of mobile broadband wireless communication networks in Nigeria.
NIWBQR is a service of Enextgen Wireless Limited designed to share with the public the quality of the LTE signals in the various networks you pay to access.
Speaking on the report, the President of Enext Inc., Engineer Remi Adeyeye reiterated that mobile networks are the most prevalent means of accessing the internet in Nigeria.
“The quality of the radio frequency used to provide the mobile connection is a key contributor to the quality of service experienced by the user. Just like many Nigerian roads, this foundational layer tends not to be well attended to.
“The outsized importance of mobile connectivity in Nigeria and the substantial amount of effort it takes for most working members of the public to earn enough to cover the cost of internet access makes it essential to pay particular attention to the RF quality.
What is Enextgen Wireless’ goal with regards this report?
“Our Goal is to contribute to improving the quality of experience of subscribers using wireless mobile broadband networks”, he said.
“By drawing attention to the quality of RF deployment, we encourage mobile network operators to keep it high so that it is possible for the public to receive appropriate value for the money paid to the operators for internet access”.
Throughput distribution report
“This report is based on our NIWBQR drive between 8:00 AM and 2:00 PM on 03/11/2020.
It serves the unique purpose of showing a more detailed analysis of throughput for this specific NIWBQR session.
During the session, our UE on Airtel was in LTE only part of the route. It was in UMTS the rest of the time as shown in the plot” he explained.
LTE physical layer downlink throughput on Victoria Island (Lagos):
What is LTE Physical Layer Throughput?
Throughput is bits transmitted per time (second). In LTE, if the number of bits transmitted in a subframe (time) over a specific number of Resource Blocks (frequency bandwidth) is high, then the throughput will be high.
Everything else being equal, a service provider with higher bandwidth will provide higher peak downlink throughput.
Below are some parameters that affect the physical layer throughput:
- Channel Bandwidth
- MIMO Antenna Configuration
- Modulation and Coding Scheme
- UE radio Condition (SINR, RSRQ, etc)
- Carrier Aggregation
Why does the KPI matter for user perceived quality?
Engineer Adeyeye said that the PDSCH is used for downlink transport of data. Modulation options include QPSK, 16QAM and 64QAM. Spatial multiplexing is also used in the PDSCH.
“The quality of the Radio Frequency signal determines the selection of the appropriate combination of these parameters. The minimum throughput required for a particular application varies. Since subscribers tend to perform more of download from the internet, download throughput is important”, he explained.
What is the Implication of the LTE Physical layer throughput in NIWBQR?
“We use peak PDSCH throughput as a measure of the quality of RF deployment only”.
LTE Physical Layer DL (Downlink)) Throughput Value from NIWBQR 03/11/2020: