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TRAI releases report on Independent Drive Tests (IDT) conducted in six LSAs covering City/ Highways/ Railway routes/ coastal areas of Andhra Pradesh LSA, Himachal Pradesh LSA, Kerala LSA, UP-West LSA, Gujarat LSA and Odisha LSA during Feb 2025.

Source: Government of India

Posted On: 17 APR 2025 7:07PM by PIB Delhi

TRAI, through its appointed agency, conducted Independent Drive Tests (IDT) in cities/highways/Railway/Coastal area of Hyderabad (Andhra Pradesh LSA), City & Railway route of Shimla (Himachal Pradesh LSA), Alappuzha & Alappuzha Backwaters (Kerala LSA), Dehradun (UP-West LSA), Rajkot (Gujarat LSA), Highway route of Visakhapatnam to Brahmapur, Railway route from Brahmapur to Bhubaneswar and Coastal area of Paradeep (Odisha LSA). Drive tests were conducted to assess the quality of service provided by Cellular Mobile Telephone Service providers for voice and data services in February 2025.

  1. In IDT, the performance of M/s Bharti Airtel Ltd., M/s BSNL/MTNL, M/s Reliance Jio Infocomm Ltd. and M/s Vodafone Idea Ltd., providing services in a Licensed Service Area (LSA) through various technologies (like 2G/ 3G/ 4G/ 5G) for voice and data, has been measured by conducting drive test. The observations presented in drive test reports represent the performance of the service providers on the area/ route under test on the day/ time of conducting the drive test.
  2. The following Key Performance Indicators (KPIs) for Voice as well as Data service were assessed for the networks of all Telecom service providers operating in the region:
  1. Voice services:
  1. Call setup success rate
  2. Drop call rate (DCR)
  3. Speech Quality using MOS (mean opinion score)
  4. Downlink & Uplink packet (voice) drop rate
  5. Call Silence Rate
  6. Coverage (%)- Signal strength

 

  1. Data Service:
  1. Data Throughput (Downlink and uplink both)
  2. Packet drop rate (Downlink & Uplink)
  3. Video streaming delay
  4. Latency
  5. Jitter

 

  1. The details of drive tests conducted in the six areas are given below:

S. No.

City / Routes Covered

Licensed Service Area

Period of Drive Test

Distance Covered

Performance summary

(attached at)

1

Alappuzha & Alappuzha Backwaters

Kerala

11-02-2025 to 14-02-2025

City: 309 Kms

Walk Test: 3.7 Kms

Coastal: 11.7 Kms

Annexure A

2

Dehradun

UP West

04-02-2025 to 07-02-2025

City: 227.5 Kms

Annexure B

3

Shimla

Himachal Pradesh

24-02-2025 to 27-02-2025

City: 158.1 Kms

Railway: 95.7 Kms

Annexure C

4

Highway: Visakhapatnam to Brahmapur,

Railway: Brahmapur to Bhubaneswar and Coastal: Paradeep

Odisha

19-02-2025 to 20-02-2025

Highway:268.5 Kms

Railway: 165.8 Kms

Coastal: 2.8 Kms

Annexure D

5

Hyderabad

Andhra Pradesh

03-02-2025 to 06-02-2025

City: 391 Kms

Walk Test: 5 Kms

Annexure E

6

Rajkot

Gujarat

17-02-2025 to 20-02-2025

City: 367.8 Kms

Walk Test: 1 Kms

Annexure F

 

  1. The detailed reports are available at TRAI website www.trai.gov.in. For any clarification/information, Shri Tejpal Singh, Advisor (QoS-I) TRAI may be contacted on email: adv-qos1@trai.gov.in or at Tel. No. +91-11-20907759.

 

(Atul Kumar Chaudhary)

Secretary

Annexure-A

  1. Drive test route Map: (Alappuzha City & Alappuzha Backwaters- Kerala LSA)

This route map indicates the routes covered in independent drive test in Alappuzha & Alappuzha Backwaters under Kerala LSA.

Legends for the Drive Tests route & area are as below

  1. Performance against key QoS parameters:

CSSR: Call setup success rate (in %), CST: Call setup time (in milli seconds), DCR: Drop call rate (in %) & MOS: Mean Opinion Score.

 

 

  1. Drive test route Map: (Dehradun City- UP West LSA)

This route map indicates the routes covered in independent drive test in Dehradun City under UP West LSA. Legends for the Drive Tests route & area are as below

 

  1. Performance against key QoS parameters:

CSSR: Call setup success rate (in %), CST: Call setup time (in milli seconds), DCR: Drop call rate (in %) & MOS: Mean Opinion Score.

 

 

  1. Drive test route Map: (Shimla – Himachal Pradesh LSA)

This route map indicates the routes covered in independent drive test in Shimla City and Railway route from Shimla to Kalka under Himachal Pradesh LSA.

Legends for the Drive Tests route & area are as below

 

  1. Performance against key QoS parameters:

CSSR: Call setup success rate (in %), CST: Call setup time (in milli seconds), DCR: Drop call rate (in %) & MOS: Mean Opinion Score.

 

 

Drive test route Map: (Visakhapatnam to Brahmapur Highway & Brahmapur to Bhubaneswar Railway Route & Paradeep Coastal area – Odisha LSA)

This route map indicates the routes covered in independent drive test in Visakhapatnam to Brahmapur Highway & Brahmapur to Bhubaneswar Railway Route & Paradeep Coast under Odisha LSA.

Legends for the Drive Tests route & area are as below

 

  1. Performance against key QoS parameters:

CSSR: Call setup success rate (in %), CST: Call setup time (in milli seconds), DCR: Drop call rate (in %) & MOS: Mean Opinion Score.

 

  1. Drive test route Map: (Hyderabad City- Andhra Pradesh LSA)

This route map indicates the routes covered in independent drive test in Hyderabad City under Andhra Pradesh LSA.  Legends for the Drive Tests route & area are as below

 

  1. Performance against key QoS parameters:

CSSR: Call setup success rate (in %), CST: Call setup time (in milli seconds), DCR: Drop call rate (in %) & MOS: Mean Opinion Score.

 

1.   Drive test route Map: (Rajkot City- Gujarat LSA)

This route map indicates the routes covered in independent drive test in Rajkot City under Gujarat LSA.

Legends for the Drive Tests route & area are as below

 

2.   Performance against key QoS parameters:

        CSSR: Call setup success rate (in %), CST: Call setup time (in milli seconds), DCR: Drop call rate (in %) & MOS: Mean Opinion Score.

 

 Summary-Voice Service

Call Setup Success Rate:  Airtel, BSNL, RJIL and VIL have call setup success rate of 99.85%, 91.75%, 99.86% and 100.00% respectively in Auto-selection mode (5G/4G/3G/2G).

Call Setup Time: Airtel, BSNL, RJIL and VIL have call setup time of 1.25, 1.56, 0.72 & 0.77 seconds respectively in Auto-selection mode (5G/4G/3G/2G).

 Drop Call Rate: Airtel, BSNL, RJIL and VIL have drop call rate of 0.00%, 0.90%, 0.14% & 0.15% respectively in Auto selection mode (5G/4G/3G/2G).

Call Silence/Mute Rate: Airtel, BSNL, RJIL and VIL have silence rate of 0.00%, 6.95%, 0.56% & 0.56% respectively in packet switched network (4G/5G).

Mean Opinion Score (MOS): Airtel, BSNL, RJIL and VIL have MOS score of 4.02, 2.91, 3.91 & 4.53 respectively.

     *****

Samrat/Allen

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