TRAI sets Quality of Services (QoS) Parameters for data services.

TRAI has initiated the process to lay quality of service (QoS) parameters and benchmarks  for data services in telecom space. TRAI has set parameters for quality in different aspects of  telecom business like wireless, wireline and broadband which have to be followed by all telecom companies and now with proliferation of mobile internet services  in the country it is now going to define QoS for data services. It has released draft regulations on “Standards of Quality of Service for Mobile Data Services Regulations, 2012 and now it will benchmark and monitor the quality of service offered by the service providers of mobile data services. TRAI will monitor  Quality of Service provided by the Service Providers from time to time and  compare them with the norms so as to assess the level of performance. It has released the details of different parameters and benchmarks for data services to be followed by all  telecom operators.

 QoS and Benchmarks for Data services 

 

The QoS defined in the draft on “Standards of Quality of Service for Mobile Data Services Regulations, 2012 are as follows

 Service activation/ provisioning:

This refers to service activation and involves programming various network databases with the customer’s information, for various technologies permitted under the license networks of an existing customer.

Successful data transmission download attempts:

The successful data download attempts is defined as the ratio of successful data downloads to the total number of data download

attempts in a specified time period. A data transmission is successful if a test file is downloaded completely and with no errors.

Successful data transmission upload attempts:

The successful data upload attempts is defined as the ratio of successful  data uploads to the total number of data upload attempts in a specified time period. A data upload is successful if a test file is uploaded completely and with no errors.

Minimum download speed:

The download speed is defined as the data transmission rate that is achieved separately for downloading a specified test file from a test server to a user’s device.

This parameter is to be measured and reported to TRAI for all the mobile data services or technologies.

Average Throughput for Packet data:

It is defined as the average rate at which packets are transmitted in anetwork. The service providers need to constantly upgrade their network to meet average throughput benchmark. The service provider will advertise the throughput being offered to its

customers as per their category or plan.

 Percentage of Node B/ BTS carrying less than 80% of the  average throughput in a license service area:

The throughput available to a customer will depend on the number of users served by a BTS/Node B. In case the number of users is more the throughput may be less. In many cases the throughput is affected due to limitations in the backhaul like less number of E1s connecting Node B to RNCs/ BTS to BSCs etc. The operators may have to augment this to maintain certain level of throughput. As such, it is necessary to measure the average throughput during TCBH for Node B/ BTS in the licensed service area. The average throughput for Node B/ BTS can be averaged over a period of one month and subsequently average throughput per Node B for the licensed service area for a month period may be calculated.

Latency:

Latency is the amount of time taken by a packet to reach the receiving endpoint after being transmitted from the sending endpoint. This time period is termed the “end-to-end delay” occurring along the transmission path.

PDP Context Activation Success Rate:

A Packet Data Protocol (PDP) context specifies access to an external packet-switching network. The successful PDP context activation is defined as the ratio of successful PDP context activation to the total number of PDP context activation attempts in a specified time period.

Drop Rate:

It measures the inability of Network to maintain a connection and is defined as the ratio of abnormal disconnects w.r.t. all disconnects (both normal and abnormal). An abnormal disconnect

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