lte drive test procedure

LTE Drive Test Procedure

Presentation / Author / Date

• Introduction• DT Objectives• Drive Test Types• DT Tools• DT Methodology• Summary


Contents:

Introduction LTE (Long Term Evolution) or

the E-UTRAN (Evolved Universal Terrestrial Access Network) is the access part of the Evolved Packet System (EPS).

The following are the main objectives for LTE:

• Increased downlink and uplink peak data rates.

• Scalable bandwidth• Improved spectral efficiency• All IP network• A standard’s based interface

that can support a multitude of user types.


• Introduction• DT Objectives• Drive Test Types• DT Tools• DT Methodology• Summary


Contents:

• Perform site build audit & verification in order to meet the site level acceptance and the defined KPIs

• Provide all needed data related to the coverage, signal quality and site performance, that help the Radio Planning and Optimization of an LTE network to troubleshoot and improve defined KPIs

• Performs RF activities in customer projects, according to project plan and in project managers guidance.


DT Objectives:

• Introduction• DT Objectives• DT Tools• Drive Test Types• DT Methodology• Summary


Contents:

Hardware:• 1x Laptop• 2x Smart Phones (2G/3G/LTE)• 1x FDD Data Dongle (should be supporting 3G 42M)• 1x TDD Data Dongle (should be supporting 3G 42M)• 1x GPS (USB Receiver)• 1x Car DC/AC Inverter• 1x Car. Software:

• TEMS Investigation 14.x and above• Map Tools (Map Info & Google Earth)• Net Monitor Software (NetPerSec)• Cell File


DT Tools:

• Introduction• DT Objectives• DT Tools• Drive Test Types• DT Methodology• Summary


Contents:

• Individual site pre-acceptance Drive Test• Individual site final-acceptance Drive Test• Cluster Optimization Drive Test.


Drive Test Types:

• Introduction• DT Objectives• DT Tools.• Drive Test Types• DT Methodology• Summary


Contents:

The test shall be performed in 2 Methodologies; Static & Mobility.• Static Test: The objective of this test is to check if there's swapped feeders and

if the Radio Units and Antennae are radiating as supposed to be & PCI should be as planned.

• Testing Steps: using FTP Server1. UDP DL Throughput Test2. FTP DL & UL Throughput Test3. Latency Test (RTT time)

• The same test shall be done in 3 positions for each cell.• Excellent: DL_RSRP ≥ -80dBm• Average: -90dBm ≤ DL_RSRP < -80dBm• Poor: -100dBm ≤ DL_RSRP < -90dBm

• Logfiles must be recorded & Snapshot must be taken.


DT MethodologyIndividual site pre-acceptance Drive Test

• Mobility Test (Coverage):• The objective of this test is to check the Intra/Inter HO, and the

homogeneity of the signal,• The test is done by driving all the roads around the sites in 3 modes: (Idle,

Dedicated DL, Dedicated UL)1. Idle Mode:

• Just plugging in the data card and make sure it is camped on LTE without doing any kind of browsing or download.

◦ On TEMS you should monitor the map and the radio levels ( RSRP, RSRQ, SINR, PCI) >>> windows on TEMS : LTE Serving /Neighbor Cell.

2. Dedicated Mode DL:• Using the FTP client application (FileZilla), run multiple DL sessions for

big files continuously and cover the same roads of Idle Mode.3. Dedicated Mode UL:

• Using the FTP client application (FileZilla), run multiple UL sessions for big files continuously and cover the same roads of Idle Mode.


DT MethodologyIndividual site pre-acceptance Drive Test (contd.)

• Static Test:• At the best radio condition will perform 5 times of each of

the following tests:1. UDP DL Throughput Test2. FTP DL & UL Throughput Test3. Latency Test (RTT time)

• Mobility Test:• Check the intra cell HO in dedicated mode 5 times

clockwise & anti-clockwise.• Check the inter cell HO in dedicated mode for one

neighbor per cell and vice versa.


DT MethodologyIndividual site final-acceptance Drive Test.

• Idle Mode:• Just plugging in the data card and make sure it is camped

on LTE without doing any kind of browsing or download.• Drive all the roads within the cluster borders.• Monitor the signal behavior while driving through the on-

air and off-air sites.

• Dedicated Mode:• Using the FTP client application (FileZilla), run multiple DL

sessions for big files continuously.• Drive all the roads within the cluster borders.• Monitor the signal & DL throughput behavior while driving

through the on-air and off-air sites.


DT MethodologyCluster Optimization Drive Test.

• Introduction• DT Objectives• DT Tools.• Drive Test Types• DT Methodology• Summary


Contents:

• The drive test results are encouraging the throughput of the LTE radio cell in different conditions.

• Based on the results the LTE network will be optimized, and new cell will be planned.

• Notes:• This document is made to outline the process of the LTE

drive test.• The report forms and the needed information of the FTP &

UDP server shall be provided to the drive tester.• There are more types of testing can be done according to

the added features and parameters to the network such as CSFB and others.


Summary

Thank You


lte drive test procedure

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